CN2937652Y

CN2937652Y - Motor gearbox

Info

Publication number: CN2937652Y
Application number: CN 200620075520
Authority: CN
Inventors: 朱优良
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-04
Filing date: 2006-08-04
Publication date: 2007-08-22
Anticipated expiration: 2016-08-04

Abstract

The utility model discloses a gear box in motor, including a case body, an output gear, an output shaft and duplicate gears. The duplicate gears are supported by the case body, wherein, a passive gear can joggle with a central gear of the motor, and a bull wheel is joggled with the output gear; the output gear is connected firmly with the output shaft to form a whole body; the output shaft is also supported by the case body, and the axes of the output shaft is accordant with that of the central gear of the motor; the motor gear box has at least two or more than two duplicate gears circled with the output gear. During utilization, the utility model can transmit power evenly with a small shake and noise, meantime, the invention has a strong carrying capacity and the gear teeth are not easy to be damaged.

Description

Motor gearbox

Technical field

The utility model relates to a kind of retarder of motor.

Background technique

The prior motor gear-box comprises casing, output gear, output shaft and duplicate gear, the duplicate gear rotational support on casing, the master gear of duplicate gear can with the motor center gear engagement, meshing of duplicate gear from gear and output gear, because the central gear arranged off-centre of the relative motor of output shaft, therefore, vibrations are big during work, noise is big, in addition, owing to only adopt a duplicate gear, so bearing capacity is smaller, transmission is inhomogeneous, Yi Dachi.

Summary of the invention

The purpose of this utility model is to provide a kind of vibrations little, and the big motor gearbox of bearing capacity.

In order to achieve the above object, the technical solution of the utility model is: a kind of motor gearbox, comprise casing, output gear, output shaft and duplicate gear, the duplicate gear rotational support is on casing, duplicate gear from gear can with the motor center gear engagement, the master gear of duplicate gear and output gear engagement, output gear and output shaft are affixed or be made as one, the output shaft rotational support is on casing, the axis of output shaft is consistent with the axis of motor center gear, duplicate gear is two or more, distributes around output gear.

Because after adopting said structure, because the axis of output shaft is consistent with the axis of motor center gear, therefore, shake for a short time during work, noise is also little; Also because duplicate gear is two or more, distribute around output gear, like this, two or more duplicate gears whiles and output gear and motor center meshed transmission gear are arranged, so bearing capacity is big, and transmission is even, is difficult for beating tooth.

Description of drawings

Fig. 1 is a motor gearbox structural representation of the present utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the right elevation of Fig. 1;

Fig. 4 is the left view after Fig. 1 removes gear cover plate;

Fig. 5 is the structural representation of the duplicate gear in the utility model;

Fig. 6 is the right elevation of Fig. 5;

Fig. 7 is the output gear in the utility model and the structural representation of output shaft;

Fig. 8 is the structure front view of the gear carrier in the utility model;

Fig. 9 is the sectional view of Fig. 8 along the A-A line;

Figure 10 is a motor gearbox of the present utility model and configuration state schematic representation after the motor main body is connected.

Embodiment

Provide embodiment below in conjunction with accompanying drawing, the utility model is further described in detail.

Shown in Fig. 1,2,3,4,5,6, a kind of motor gearbox, comprise casing 1, output gear 3, output shaft 4 and duplicate gear 2, duplicate gear 2 rotational support are on casing 1, duplicate gear 2 from gear 2-1 can with the motor center gear engagement, the master gear 2-2 of duplicate gear 2 and output gear 3 engagements, output gear 3 and output shaft 4 are affixed or be made as one, output shaft 4 rotational support are on casing 1, the axis of output shaft 4 is consistent with the axis of motor center gear, duplicate gear 2 is two or more, distributes around output gear 3.

Shown in Fig. 2,4, duplicate gear 2 is preferably three, and three duplicate gears 2 evenly distribute around output gear 3.

As shown in Figure 7, output gear 3 relies on spline to be fixed together with output shaft 4.

Shown in Fig. 1,8,9, casing 1 comprises gear carrier 1-1 and gear cover plate 1-2, gear carrier 1-1 has end plate 1-1-1, column 1-1-2 and stiffening rib 1-1-3, be connected with inner bearer ring 1-1-4 between the stiffening rib 1-1-3, the outside of end plate 1-1-1 has outer end bearer ring 1-1-5, and gear carrier 1-1 is fixedlyed connected with the through hole that gear cover plate 1-2 relies on screw 6 to pass column 1-1-2.

Shown in Fig. 1,3, duplicate gear 2 fixedly connected sprocket drive spindle 2-3, the end plate 1-1-1 that gear shaft 2-3 two ends are supported on gear carrier 1-1 respectively go up and gear cover plate 1-2 on.

Shown in Fig. 1,8,9, output shaft 4 two ends are supported among the inner bearer ring 1-1-4 of gear carrier 1-1 respectively and in the spring bearing 5 on the gear cover plate 1-2, output gear 3 is between inner bearer ring 1-1-4 and spring bearing 5.

As shown in figure 10, when the utility model uses, should be connected with the motor main body, the meshing simultaneously of three duplicate gears 2 in motor center gear 8 and the utility model from gear 2-1, the master gear 2-2 of three duplicate gears 2 then meshes simultaneously with output gear 3.

Claims

1, a kind of motor gearbox, comprise casing (1), output gear (3), output shaft (4) and duplicate gear (2), duplicate gear (2) rotational support is on casing (1), duplicate gear (2) from gear (2-1) can with the motor center gear engagement, the master gear (2-2) of duplicate gear (2) and output gear (3) engagement, output gear (3) and output shaft (4) are affixed or be made as one, and output shaft (4) rotational support is characterized in that on casing (1):

The axis of a, output shaft (4) is consistent with the axis of motor center gear,

B, duplicate gear (2) are two or more, distribute around output gear (3).

2, motor gearbox according to claim 1 is characterized in that: duplicate gear (2) is three, and three duplicate gears (2) evenly distribute around output gear (3).

3, motor gearbox according to claim 2, it is characterized in that: casing (1) comprises gear carrier (1-1) and gear cover plate (1-2), gear carrier (1-1) has end plate (1-1-1), column (1-1-2) and stiffening rib (1-1-3), be connected with inner bearer ring (1-1-4) between the stiffening rib (1-1-3), the outside of end plate (1-1-1) has outer end bearer ring (1-1-5), and gear carrier (1-1) is fixedlyed connected with the through hole that gear cover plate (1-2) relies on screw (6) to pass column (1-1-2).

4, motor gearbox according to claim 3 is characterized in that: the end plate (1-1-1) that the fixedly connected sprocket drive spindle of duplicate gear (2) (2-3), gear shaft (2-3) two ends are supported on gear carrier (1-1) respectively go up and gear cover plate (1-2) on.

5, according to claim 3 or 4 described motor gearboxes, it is characterized in that: output shaft (4) two ends are supported on respectively in the inner bearer ring (1-1-4) of gear carrier (1-1) and in the spring bearing (5) on the gear cover plate (1-2), and output gear (3) is positioned between inner bearer ring (1-1-4) and the spring bearing (5).