Tower type direct-current gear motor

Abstract

The utility model discloses a tower-type direct-current gear motor which comprises a first shell, a second shell is arranged on the first shell, a direct-current motor is fixedly connected to the side surface of the first shell, a driving shaft is fixedly connected to the output end of the direct-current motor, a worm is fixedly connected to the outer surface of the driving shaft, and a worm gear is fixedly connected to the outer surface of the worm. The first shell is rotationally connected with a first connecting shaft, and the outer surface of the first connecting shaft is fixedly connected with a connecting cylinder. Through the arrangement of the direct current motor, the worm, the first connecting shaft and other structures, the axes of the gears in the scheme are in the same plane, the structure is simple, the motion trail of the gears is regular, additional force and torque generated due to different axes do not exist, the friction coefficient is small, energy loss is relatively small, and therefore the transmission efficiency can be improved; and a tower type stacking mode is adopted in the scheme, the structure is relatively compact, the size is small, and placement and use are convenient.

Description

Technical Field

[0001] This utility model relates to the field of geared motors, and in particular to a tower-type DC geared motor. Background Technology

[0002] A geared motor is an integrated unit of a speed reducer and a motor. This integrated unit is also commonly referred to as a geared motor or geared motor. A DC geared motor is a geared motor that uses a DC motor as its drive.

[0003] In the existing technology, traditional interleaved shaft reducers, such as worm gear reducers, have relatively complex structures because the centers of all the gears in the reducer are not on the same plane and the gears are arranged in an interleaved manner. This requires special design and manufacturing processes to ensure the correct meshing of the gears and transmission efficiency. Moreover, there is a large amount of sliding friction in the transmission, resulting in large energy loss and low transmission efficiency. Therefore, a tower-type DC geared motor is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a tower-type DC geared motor that sets the shafts of the gears to the same plane, eliminating the additional force and torque caused by different shafts, thereby improving transmission efficiency.

[0005] To achieve the above objectives, a tower-type DC geared motor is provided, comprising a first housing, a second housing disposed on the first housing, a DC motor fixedly connected to the side surface of the first housing, a drive shaft fixedly connected to the output end of the DC motor, a worm gear fixedly connected to the outer surface of the drive shaft, a first connecting shaft rotatably connected to the first housing, a connecting cylinder fixedly connected to the outer surface of the first connecting shaft, a pinion and a worm gear fixedly connected to the outer surface of the connecting cylinder, a second connecting shaft rotatably connected to the first housing, a first double gear and a second double gear fixedly connected to the outer surface of the second connecting shaft, a first bearing fixedly connected to the second housing, a third connecting shaft fixedly connected to the inner surface of the first bearing, a third double gear and a fourth double gear fixedly connected to the outer surface of the third connecting shaft, a second bearing fixedly connected to the first housing, an output shaft fixedly connected to the inner surface of the second bearing, and a large gear fixedly connected to the outer surface of the output shaft.

[0006] According to the tower-type DC geared motor, a third bearing is fixedly connected to the outer surface of the output shaft, and the outer surface of the third bearing is fixedly connected to the second housing.

[0007] According to the aforementioned tower-type DC geared motor, the worm gear meshes with a worm wheel.

[0008] According to the aforementioned tower-type DC geared motor, the pinion meshes with a second double gear, and the second double gear meshes with a third double gear.

[0009] According to the aforementioned tower-type DC geared motor, the first double gear meshes with the fourth double gear, the first double gear meshes with the third double gear, and the fourth double gear meshes with the large gear.

[0010] According to the aforementioned tower-type DC geared motor, the outer surface of the first connecting shaft is rotatably connected to the second housing, and the outer surface of the second connecting shaft is rotatably connected to the second housing.

[0011] According to the tower-type DC geared motor, the outer surface of the third connecting shaft is rotatably connected to the first housing.

[0012] According to the tower-type DC geared motor, the outer surface of the second bearing is fixedly connected to the first housing.

[0013] The above scheme has the following advantages: By setting up a DC motor, worm gear and first connecting shaft, the shafts of the gears in this scheme are on the same plane, the structure is simple, and their motion trajectory is relatively regular. There is no additional force or torque caused by different shafts, the friction coefficient is small, and the energy loss is relatively small, thereby improving the transmission efficiency. In addition, the scheme adopts a tower stacking method, which makes the structure relatively compact and the volume small, making it convenient to place and use.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a tower-type DC geared motor according to the present invention;

[0017] Figure 2 This is a schematic diagram of the DC motor portion of a tower-type DC geared motor according to this utility model;

[0018] Figure 3 This is a top view schematic diagram of the DC motor portion of a tower-type DC geared motor according to the present invention.

[0019] Figure 4 This is a rear view structural diagram of the DC motor section of a tower-type DC geared motor according to the present invention.

[0020] Figure 5This is a schematic diagram of the first outer casing of a tower-type DC geared motor according to the present invention;

[0021] Figure 6 This is a schematic diagram of the second housing portion of a tower-type DC geared motor according to the present invention.

[0022] Legend:

[0023] 1. First housing; 2. Second housing; 3. DC motor; 4. Drive shaft; 5. Worm gear; 6. First connecting shaft; 7. Connecting cylinder; 8. Pinion; 9. Worm wheel; 10. Second connecting shaft; 11. First double gear; 12. Second double gear; 13. First bearing; 14. Third connecting shaft; 15. Third double gear; 16. Fourth double gear; 17. Second bearing; 18. Output shaft; 19. Large gear; 20. Third bearing. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-6This utility model discloses a tower-type DC geared motor, comprising a first housing 1, a second housing 2 mounted on the first housing 1, a DC motor 3 fixedly connected to the side surface of the first housing 1, a drive shaft 4 fixedly connected to the output end of the DC motor 3, a worm gear 5 fixedly connected to the outer surface of the drive shaft 4, a first connecting shaft 6 rotatably connected to the first housing 1, a connecting cylinder 7 fixedly connected to the outer surface of the first connecting shaft 6, a pinion 8 and a worm wheel 9 fixedly connected to the outer surface of the connecting cylinder 7 respectively, the worm gear 5 and the worm wheel 9 meshing, a second connecting shaft 10 rotatably connected to the first housing 1, a first double gear 11 and a second double gear 12 fixedly connected to the outer surface of the second connecting shaft 10 respectively, a first bearing 13 fixedly connected to the second housing 2, a third connecting shaft 14 fixedly connected to the inner surface of the first bearing 13, a third double gear 15 and a fourth double gear 16 fixedly connected to the outer surface of the third connecting shaft 14 respectively, the pinion 8 meshing with the second double gear 12, the second double gear 12... The first double gear 11 meshes with the third double gear 15. A second bearing 17 is fixedly connected to the first housing 1. An output shaft 18 is fixedly connected to the inner surface of the second bearing 17. A large gear 19 is fixedly connected to the outer surface of the output shaft 18. The first double gear 11 meshes with the fourth double gear 16. The first double gear 11 meshes with the third double gear 15. The fourth double gear 16 meshes with the large gear 19. A third bearing 20 is fixedly connected to the outer surface of the output shaft 18. The outer surface of the third bearing 20 is fixedly connected to the second housing 2. The outer surface of the first connecting shaft 6 is rotatably connected to the second housing 2. The outer surface of the second connecting shaft 10 is rotatably connected to the second housing 2. The outer surface of the third connecting shaft 14 is rotatably connected to the first housing 1. The outer surface of the second bearing 17 is fixedly connected to the first housing 1. It should be noted that the first double gear 11, the second double gear 12, the third double gear 15, and the fourth double gear 16 use double gears for transmission, thereby ensuring the accuracy and efficiency of the transmission system.

[0026] Working principle: After starting the DC motor 3 on the first housing 1, the started DC motor 3 drives the drive shaft 4 and the worm gear 5 on the drive shaft 4 to rotate. At this time, the rotating worm gear 5 drives the meshing worm wheel 9 to rotate, thereby causing the rotating worm wheel 9 to drive the first connecting shaft 6, the connecting cylinder 7 and the pinion 8 to rotate. At this time, the rotating pinion 8 drives the meshing second double gear 12 to rotate, thereby causing the rotating second double gear 12 to drive the second connecting shaft 10 and the first double gear 11 to rotate. The first double gear 11 meshes with the third double gear 15 and the fourth double gear 16 respectively, and the second double gear 12 meshes with the third double gear 15. Therefore, while the second double gear 12 drives the first double gear 11 to rotate, it also drives the third double gear 15 and the fourth double gear 16 to rotate, ensuring... The precision of gear transmission is ensured. Rotating the third double gear 15 drives the inner ring of the first bearing 13 and the third connecting shaft 14 to rotate. The rotating fourth double gear 16 then drives the meshing large gear 19 to rotate, which in turn drives the output shaft 18, the inner ring of the second bearing 17, and the inner ring of the third bearing 20 to rotate, thus completing the torque output of the output shaft 18. It should be noted that the bearings typically operate with the inner and outer rings rotating separately. Therefore, even if the outer rings of the first bearing 13, the third bearing 20, and the second bearing 17 are fixedly connected to the first housing 1 and the second housing 2 respectively, it will not affect the rotation of the inner rings of the first bearing 13, the third bearing 20, and the second bearing 17, and consequently, it will not affect the rotation of the third connecting shaft 14, the output shaft 18, or the structures on the third connecting shaft 14 and the output shaft 18.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A towered direct current geared motor comprising: A first outer shell (1), characterized in that a second outer shell (2) is provided on the first outer shell (1), a DC motor (3) is fixedly connected to the side surface of the first outer shell (1), a drive shaft (4) is fixedly connected to the output end of the DC motor (3), a worm gear (5) is fixedly connected to the outer surface of the drive shaft (4), a first connecting shaft (6) is rotatably connected to the first outer shell (1), a connecting cylinder (7) is fixedly connected to the outer surface of the first connecting shaft (6), a pinion gear (8) and a worm gear (9) are fixedly connected to the outer surface of the connecting cylinder (7), and a second connecting shaft (10) is rotatably connected to the first outer shell (1). The outer surface of the second connecting shaft (10) is fixedly connected to the first double gear (11) and the second double gear (12). The second housing (2) is fixedly connected to the first bearing (13). The inner surface of the first bearing (13) is fixedly connected to the third connecting shaft (14). The outer surface of the third connecting shaft (14) is fixedly connected to the third double gear (15) and the fourth double gear (16). The first housing (1) is fixedly connected to the second bearing (17). The inner surface of the second bearing (17) is fixedly connected to the output shaft (18). The outer surface of the output shaft (18) is fixedly connected to the large gear (19).

2. A tower type DC reduction motor according to claim 1, wherein The outer surface of the output shaft (18) is fixedly connected to a third bearing (20), and the outer surface of the third bearing (20) is fixedly connected to the second housing (2).

3. A tower type DC reduction motor according to claim 1, wherein The worm (5) meshes with the worm wheel (9).

4. A tower type DC reduction gear motor according to claim 1, wherein The pinion (8) meshes with the second double gear (12), and the second double gear (12) meshes with the third double gear (15).

5. A tower type DC reduction gear motor according to claim 1, wherein The first double gear (11) meshes with the fourth double gear (16), the first double gear (11) meshes with the third double gear (15), and the fourth double gear (16) meshes with the large gear (19).

6. A tower-type DC geared motor according to claim 1, characterized in that, The outer surface of the first connecting shaft (6) is rotatably connected to the second outer shell (2), and the outer surface of the second connecting shaft (10) is rotatably connected to the second outer shell (2).

7. A tower type DC reduction gear motor according to claim 1, wherein The outer surface of the third connecting shaft (14) is rotatably connected to the first outer shell (1).

8. A tower type DC reduction gear motor according to claim 1, wherein The outer surface of the second bearing (17) is fixedly connected to the first housing (1).

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