CN220930119U

CN220930119U - Micro gear box

Info

Publication number: CN220930119U
Application number: CN202322690653.4U
Authority: CN
Inventors: 刘洪林; 刘洪胜
Original assignee: Jiangsu Zonghua Intelligent Technology Co ltd
Current assignee: Jiangsu Zonghua Intelligent Technology Co ltd
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2024-05-10
Anticipated expiration: 2033-10-09

Abstract

The utility model relates to the technical field of gear boxes, and discloses a micro gear box which comprises an inner tooth shell and two first optical axes, wherein a first planet carrier and a second planet carrier are respectively arranged in the inner tooth shell, one side, far away from the second planet carrier, of the first planet carrier is provided with a first planet gear through one of the first optical axes, and one side, far away from the first planet carrier, of the second planet carrier is provided with a third planet gear through the second optical axis. The planetary gear transmission structure is adopted, so that gear transmission is more stable; the base and the motor gear in the gear box can provide strong driving force, so that the efficient operation of the output shaft is ensured; the structural design of the internal tooth shell ensures that the connection between the output shaft and the fixing piece for supporting the output shaft is firmer and more stable; the installation of the base gasket can effectively reduce the vibration and friction of the output shaft, so that the service life of the gear box is prolonged.

Description

Micro gear box

Technical Field

The utility model relates to the technical field of gearboxes, in particular to a miniature gearbox.

Background

The gearbox is used as a mechanical transmission part, and has been widely used by virtue of the advantages of high transmission efficiency, compact structure, stable transmission ratio, long service life and the like. Large gearboxes are widely used in motors, often used in wind power generation units, and have the main function of transmitting power generated by a wind wheel under the action of wind power to a generator and improving the rotating speed of the generator. Miniature gearboxes are also used in children's toys, which are intended to be slowed down by the need to slow down the speed of the high speed motor.

The existing integrated micro gear box (publication number: CN 216923129U) has at least the following disadvantages: the first heat dissipation component and the second heat dissipation component are arranged to dissipate heat of the gear box, so that the service life of the gear box is prolonged; because the micro gear box has a smaller structure, the micro gear box can only drive by means of a plurality of groups of common gears with different transmission ratios, and the transmission is easy to be unstable.

Disclosure of utility model

The utility model aims to solve the defects in the prior art and provides a miniature gearbox.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a micro gear box, includes internal tooth shell and two first optical axes, first planet carrier and second planet carrier are installed respectively to the inside of internal tooth shell, first planet gear is installed through one of them first optical axis to one side that the second planet carrier was kept away from to first planet carrier, third planet gear is installed through the second optical axis to one side that the first planet carrier was kept away from to the second planet carrier, install the second planet gear through another first optical axis between first planet carrier and the second planet carrier, the internal tooth shell is close to the internally mounted of first planet gear has the base, motor gear is installed to the inboard of base, internally mounted of internal tooth shell one end has the bearing, install the output shaft on the bearing.

As a further aspect of the present utility model, an output frame is mounted inside the internal tooth casing.

As a further aspect of the present utility model, a fixing member for supporting the output shaft is mounted on the outer side of the internal gear housing.

As a further aspect of the present utility model, a base washer is mounted inside the internal tooth casing.

As a further scheme of the utility model, the inner tooth shell is provided with a split ring close to the outer side of the bearing, and a ring gasket is arranged between the split ring and the inner tooth shell.

As a further aspect of the present utility model, the inner tooth casing is provided with a first gear washer near the inner side of the second planetary gear, and the inner tooth casing is provided with a second gear washer near the inner side of the third planetary gear.

As a further scheme of the utility model, a carbon brush motor is arranged on the outer side of the base through a first screw and a second screw, and a third screw for fastening the carbon brush motor is arranged on the outer side of the inner tooth shell.

Compared with the prior art, the utility model has the following beneficial effects:

1. compact structure, small size, and is suitable for occasions with limited space.

2. The transmission structure of the planetary gear is adopted, so that the gear transmission is more stable.

3. The base and motor gear inside the gear box can provide strong driving force, thereby ensuring the efficient operation of the output shaft.

4. The structural design of the internal tooth shell ensures that the connection between the output shaft and the fixing piece for supporting the output shaft is firmer and more stable.

5. The installation of the base gasket can effectively reduce the vibration and friction of the output shaft, so that the service life of the gear box is prolonged.

6. The split collars and collar washers provide protection against damage and wear to bearings and other critical components.

Drawings

FIG. 1 is a schematic view of the overall structure of a micro-gearbox according to the present utility model;

fig. 2 is a schematic view of the internal structure of a micro gear box according to the present utility model.

In the figure: 1. an internal tooth housing; 2. a motor gear; 3. a first planetary gear; 4. a second planetary gear; 5. a third planetary gear; 6. a base; 7. a first planet carrier; 8. a second carrier; 9. an output rack; 10. a fixing member; 11. a first optical axis; 12. a second optical axis; 13. an output shaft; 14. a base gasket; 15. a first gear washer; 16. a second gear washer; 17. a retainer ring gasket; 18. a carbon brush motor; 19. a bearing; 20. a first screw; 21. a second screw; 22. a third screw; 23. and (5) opening the retainer ring.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 and 2, a micro gear box includes an internal gear housing 1 and two first optical axes 11, a first planetary carrier 7 and a second planetary carrier 8 are respectively installed inside the internal gear housing 1, a first planetary gear 3 is installed through one of the first optical axes 11 on a side of the first planetary carrier 7 away from the second planetary carrier 8, a third planetary gear 5 is installed through the second optical axis 12 on a side of the second planetary carrier 8 away from the first planetary carrier 7, a second planetary gear 4 is installed through the other first optical axis 11 between the first planetary carrier 7 and the second planetary carrier 8, a base 6 is installed inside the internal gear housing 1 near the first planetary gear 3, a motor gear 2 is installed inside the base 6, a bearing 19 is installed inside one end of the internal gear housing 1, an output shaft 13 is installed on the bearing 19, an output carrier 9 is installed inside the internal gear housing 1, a fixing member 10 supporting the output shaft 13 is installed outside the internal gear housing 1, and a base washer 14 is installed inside the internal gear housing 1.

In this embodiment, the internal tooth housing 1 is provided with a split ring 23 near the outer side of the bearing 19, and a ring washer 17 is provided between the split ring 23 and the internal tooth housing 1.

In the present embodiment, the inner tooth casing 1 is provided with a first gear washer 15 near the inner side of the second planetary gear 4, and the inner tooth casing 1 is provided with a second gear washer 16 near the inner side of the third planetary gear 5.

In the present embodiment, the carbon brush motor 18 is mounted on the outer side of the base 6 by the first screw 20 and the second screw 21, and the third screw 22 for fastening the carbon brush motor 18 is mounted on the outer side of the internal tooth housing 1.

From the above description, it can be seen that the following technical effects are achieved by the embodiments of the present utility model:

3. The base 6 and the motor gear 2 inside the gearbox can provide a strong driving force, ensuring an efficient operation of the output shaft 13.

4. The structural design of the internal tooth housing 1 makes the connection between the output shaft 13 and the fixing member 10 supporting the output shaft 13 more firm and stable.

5. The mounting of the base washer 14 effectively reduces vibration and friction of the output shaft 13, thereby extending the service life of the gearbox.

6. The provision of split washer 23 and washer 17 helps to prevent damage and wear to bearing 19 and other critical parts.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a micro gear case, includes internal tooth shell (1) and two first optical axes (11), its characterized in that, first planet carrier (7) and second planet carrier (8) are installed respectively to the inside of internal tooth shell (1), first planet carrier (3) are installed through one of them first optical axis (11) in one side that second planet carrier (8) were kept away from to first planet carrier (7), third planet gear (5) are installed through second optical axis (12) in one side that second planet carrier (8) were kept away from first planet carrier (7), second planet gear (4) are installed through another first optical axis (11) between first planet carrier (7) and second planet carrier (8), internally mounted that internal tooth shell (1) is close to first planet gear (3) has base (6), motor gear (2) are installed to the inboard of base (6), internally mounted of internal tooth shell (1) one end has bearing (19), install output shaft (13) on bearing (19).

2. A micro-gearbox according to claim 1, characterized in that the internal tooth casing (1) is internally fitted with an output rack (9).

3. A gearbox according to claim 1, characterised in that the external side of the internal tooth housing (1) is fitted with a mount (10) supporting an output shaft (13).

4. A gearbox according to claim 1, characterised in that the internal tooth casing (1) is internally fitted with a base washer (14).

5. A gearbox according to claim 1, characterised in that the internal tooth housing (1) is provided with a split ring (23) near the outside of the bearing (19), a ring washer (17) being provided between the split ring (23) and the internal tooth housing (1).

6. A gearbox according to claim 1, characterised in that the inner gear housing (1) is fitted with a first gear washer (15) adjacent to the inner side of the second planetary gear (4), and the inner gear housing (1) is fitted with a second gear washer (16) adjacent to the inner side of the third planetary gear (5).

7. A micro gear box according to claim 1, characterized in that the carbon brush motor (18) is mounted on the outer side of the base (6) by means of a first screw (20) and a second screw (21), and a third screw (22) for fastening the carbon brush motor (18) is mounted on the outer side of the inner tooth casing (1).