Miniature waterproof gear motor

Abstract

The utility model discloses a miniature waterproof gear motor which comprises a first protective shell, a protective cover is inserted into one end of the first protective shell, an outer sealing ring is arranged between the protective cover and the first protective shell, a second protective shell is formed in the middle of one end, far away from the first protective shell, of the protective cover, and a miniature motor is arranged in the first protective shell. And a waterproof joint is arranged at the upper part of the side wall of the first protective shell opposite to the protective cover. By arranging the first protective shell, the protective cover, the outer sealing ring, the second protective shell, the outer shaft sealing ring and the waterproof joint, a waterproof protection structure can be formed outside the micro motor and the micro reduction gearbox, so that the micro reduction motor has good waterproofness; and the stability of the transmission output end and the output shaft of the micro motor during rotation can be improved by the stabilizing plate, so that the micro gear motor is more stable during working.

Description

Technical Field

[0001] The utility model belongs to the technical field of micro reduction motors, in particular to a micro waterproof reduction motor. Background Art

[0002] A micro reduction motor, also known as a micro reduction motor, is a reduction transmission mechanism that integrates a micro motor and a gearbox. It is mainly used to reduce the speed and increase the torque to meet the needs of mechanical equipment. It has the characteristics of "small size, high torque, and low noise". It can simplify product design and save space. It is the first choice for micro precision transmission machinery companies.

[0003] A micro reduction motor is generally a direct combination of a micro motor and a micro reduction box. It has insufficient waterproof performance and its service life and working condition are easily affected in harsh environments. For this reason, a micro waterproof reduction motor is proposed here. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a miniature waterproof reduction motor, which effectively solves the problems existing in the existing miniature reduction motors.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micro waterproof reduction motor, comprising a first protective shell, a protective cover is plugged into one end of the first protective shell, an outer sealing ring is arranged between the protective cover and the first protective shell, a second protective shell is formed in the middle of one end of the protective cover away from the first protective shell, a micro motor is arranged in the first protective shell, a waterproof joint is arranged on the upper part of the side wall of the first protective shell facing the protective cover, a micro reduction box is arranged in the second protective shell on one side of the micro motor, the transmission output end of the micro motor extends into the micro reduction box, a stabilizing plate is arranged on the periphery of one end of the transmission output end of the micro motor extending into the micro reduction box, and a stabilizing plate is arranged between the stabilizing plate and the micro reduction box. The outer periphery of the micro-motor transmission output end between the inner walls of the speed box is connected to the first transmission gear through a key, the lower end of the first transmission gear is provided with a second transmission gear, the middle part of the second transmission gear is provided with an output shaft, and a first oil seal is provided on the inner wall of the micro-reduction box at a position connected to the micro-motor transmission output end, a first internal shaft sealing ring is provided on the inner wall of the micro-reduction box on one side of the first oil seal, a second oil seal is provided at a position where the inner wall of the micro-reduction box is connected to the output shaft, a second internal shaft sealing ring is provided on the inner wall of the micro-reduction box on one side of the second oil seal, and an external shaft sealing ring is provided at a position where the outer wall of the second protective shell is connected to the output shaft.

[0006] Preferably, the four corners of the protective cover are connected to the first protective shell by bolts, and the outer sealing ring is clamped between the first protective shell and the protective cover. The outer sealing ring can ensure good sealing and waterproofness between the first protective shell and the protective cover. The micro motor is plugged into the inner wall of the first protective shell, and the waterproof connector is connected to the side wall of the first protective shell by threads. After the first protective shell and the protective cover are connected, the first protective shell, the protective cover, the outer sealing ring and the second protective shell can provide waterproof protection for the micro motor and the micro reducer, and the waterproof connector can ensure good waterproofness at the wiring lead-out position of the micro motor.

[0007] Preferably, the four corners of the micro reducer are connected to the micro motor by bolts, the transmission output end of the micro motor is connected to the side wall of the micro reducer through a bearing, the first oil seal is connected to the inner wall of the micro reducer by screws, and the first internal shaft sealing ring is connected to the inner wall of the micro reducer through a slot. The first oil seal and the first internal shaft sealing ring can ensure good sealing between the transmission output end of the micro motor and the inner wall of the reducer, and the micro motor also has an oil seal and sealing ring structure.

[0008] Preferably, the upper and lower parts of the stabilizing plate are respectively connected to the two inner walls of the micro reduction box by bolts, the transmission output end of the micro motor is connected to the stabilizing plate by a bearing, and the first transmission gear and the second transmission gear are engaged and connected by a key. The stabilizing plate can improve the stability of the transmission output end of the micro motor during rotation. When the transmission output end of the micro motor rotates, it can drive the first transmission gear to rotate, and then the first transmission gear drives the second transmission gear to rotate.

[0009] Preferably, the middle part of the second transmission gear is connected to the output shaft through a key, the output shaft is connected to the stabilizing plate through a bearing, and the output shaft is connected to the side wall of the micro reduction box and the side wall of the second protective shell through bearings. The output shaft can rotate synchronously with the second transmission gear. Since the diameter of the second transmission gear is much larger than the diameter of the first transmission gear, this can achieve a deceleration effect when power is transmitted to the output shaft.

[0010] Preferably, the second oil seal and the second internal sealing ring are connected to the inner wall of the micro reducer through a slot, and the external shaft sealing ring is connected to the outer wall of the second protective shell through a slot. The second oil seal, the second internal sealing ring and the external shaft sealing ring can ensure the sealing between the output shaft and the side wall of the reducer and the second protective shell.

[0011] In this micro waterproof reducer motor, by arranging a first protective shell, a protective cover, an outer sealing ring, a second protective shell, an external shaft sealing ring and a waterproof joint, a waterproof protection structure can be formed on the outside of the micro motor and the micro reducer, so that the micro reducer motor has good waterproof performance; the first oil seal and the first internal shaft sealing ring can ensure good sealing between the transmission output end of the micro motor and the inner wall of the reducer, and the second oil seal, the second internal sealing ring and the external shaft sealing ring can ensure the sealing between the output shaft and the side wall of the reducer and the second protective shell; the stabilizing plate can improve the stability of the transmission output end and the output shaft of the micro motor during rotation, so that the micro reducer motor is more stable during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 It is a front cross-sectional view of the utility model;

[0014] Figure 3 For this utility model Figure 2 A partial enlarged view of point A in the middle;

[0015] In the figure: 1. First protective shell; 2. Protective cover; 3. Outer sealing ring; 4. Second protective shell; 5. Micro motor; 6. Waterproof connector; 7. Micro reduction gear; 8. Stabilizing plate; 9. First transmission gear; 10. Second transmission gear; 11. Output shaft; 12. First oil seal; 13. First inner shaft sealing ring; 14. Second oil seal; 15. Second inner shaft sealing ring; 16. Outer shaft sealing ring. DETAILED DESCRIPTION

[0016] In this embodiment, Figure 1-3The utility model includes a first protective shell 1, a protective cover 2 is plugged into one end of the first protective shell 1, an outer sealing ring 3 is provided between the protective cover 2 and the first protective shell 1, a second protective shell 4 is formed in the middle of the end of the protective cover 2 away from the first protective shell 1, a micro motor 5 is provided in the first protective shell 1, a waterproof joint 6 is provided on the upper part of the side wall of the first protective shell 1 facing the protective cover 2, a micro reduction box 7 is provided in the second protective shell 4 on the side of the micro motor 5, the transmission output end of the micro motor 5 extends into the micro reduction box 7, the transmission output end of the micro motor 5 extends into the micro reduction box 7, and a stabilizing plate 8 is provided on the periphery of one end of the micro reduction box 7, and the transmission output of the micro motor 5 between the stabilizing plate 8 and the inner wall of the micro reduction box 7 is provided. The outer periphery of the end is connected to the first transmission gear 9 by a key, the lower end of the first transmission gear 9 is provided with a second transmission gear 10, the middle part of the second transmission gear 10 is provided with an output shaft 11, and a first oil seal 12 is provided on the inner wall of the micro reduction box 7 at a position connected to the transmission output end of the micro motor 5, a first internal shaft sealing ring 13 is provided on the inner wall of the micro reduction box 7 on one side of the first oil seal 12, a second oil seal 14 is provided at a position where the inner wall of the micro reduction box 7 is connected to the output shaft 11, a second internal shaft sealing ring 15 is provided on the inner wall of the micro reduction box 7 on one side of the second oil seal 14, and an external shaft sealing ring 16 is provided at a position where the outer wall of the second protective shell 4 is connected to the output shaft 11.

[0017] Among them, the four corners of the protective cover 2 are connected to the first protective shell 1 by bolts, and the outer sealing ring 3 is clamped between the first protective shell 1 and the protective cover 2. The outer sealing ring 3 can ensure good sealing and waterproofness between the first protective shell 1 and the protective cover 2. The micro motor 5 is plugged into the inner wall of the first protective shell 1, and the waterproof connector 6 is connected to the side wall of the first protective shell 1 through a thread. After the first protective shell 1 and the protective cover 2 are connected, the first protective shell 1, the protective cover 2, the outer sealing ring 3 and the second protective shell 4 can provide waterproof protection for the micro motor 5 and the micro reduction box 7, and the waterproof connector 6 can ensure good waterproofness at the wiring lead-out position of the micro motor 5.

[0018] Among them, the four corners of the micro reduction box 7 are connected to the micro motor 5 by bolts, the transmission output end of the micro motor 5 is connected to the side wall of the micro reduction box 7 through a bearing, the first oil seal 12 is connected to the inner wall of the micro reduction box 7 by screws, and the first internal shaft sealing ring 13 is connected to the inner wall of the micro reduction box 7 through a slot. The first oil seal 12 and the first internal shaft sealing ring 13 can ensure good sealing between the transmission output end of the micro motor 5 and the inner wall of the reduction box. The micro motor 5 also has an oil seal and sealing ring structure inside.

[0019] Among them, the upper and lower parts of the stabilizing plate 8 are respectively connected to the two inner walls of the micro reduction box 7 by bolts, the transmission output end of the micro motor 5 is connected to the stabilizing plate 8 through a bearing, and the first transmission gear 9 and the second transmission gear 10 are engaged and connected by a key. The stabilizing plate 8 can improve the stability of the transmission output end of the micro motor 5 during rotation. When the transmission output end of the micro motor 5 rotates, it can drive the first transmission gear 9 to rotate, and then the first transmission gear 9 drives the second transmission gear 10 to rotate.

[0020] Among them, the middle part of the second transmission gear 10 is connected to the output shaft 11 by a key, the output shaft 11 is connected to the stabilizing plate 8 by a bearing, the output shaft 11 is connected to the side wall of the micro reduction box 7 and the side wall of the second protective shell 4 by bearings, and the output shaft 11 can rotate synchronously with the second transmission gear 10. Since the diameter of the second transmission gear 10 is much larger than the diameter of the first transmission gear 9, this can achieve the effect of deceleration when the power is transmitted to the output shaft 11. The second oil seal 14 and the second internal sealing ring are connected to the inner wall of the micro reduction box 7 through a groove, and the external shaft sealing ring 16 is connected to the outer wall of the second protective shell 4 through a groove. The second oil seal 14, the second internal sealing ring and the external shaft sealing ring 16 can ensure the sealing between the output shaft 11 and the side wall of the reduction box and the second protective shell 4.

[0021] Working principle: The wiring of the micro motor 5 is led out through the waterproof connector 6. The waterproof connector 6 can ensure good waterproofness at the wiring lead-out position of the micro motor 5. After the first protective shell 1 and the protective cover 2 are connected, the first protective shell 1, the protective cover 2, the outer sealing ring 3 and the second protective shell 4 can provide waterproof protection for the micro motor 5 and the micro reduction box 7. The first oil seal 12 and the first internal shaft sealing ring 13 can ensure good sealing between the transmission output end of the micro motor 5 and the inner wall of the reduction box. The second oil seal 14, the second internal sealing ring and the outer shaft sealing ring 16 can ensure the output The sealing between the shaft 11 and the side wall of the reduction gear box and the second protective shell 4, the transmission output end of the micro motor 5 can drive the first transmission gear 9 to rotate when rotating, and then the first transmission gear 9 drives the second transmission gear 10 to rotate, and the output shaft 11 can rotate synchronously with the second transmission gear 10. Since the diameter of the second transmission gear 10 is much larger than the diameter of the first transmission gear 9, this can achieve a deceleration effect when the power is transmitted to the output shaft 11. The stabilizing plate 8 can improve the stability of the transmission output end and the output shaft 11 of the micro motor 5 during rotation.

Claims

1. A miniature waterproof reduction motor, comprising a first protective shell (1), characterized in that: A protective cover (2) is inserted into one end of the first protective shell (1), an outer sealing ring (3) is provided between the protective cover (2) and the first protective shell (1), a second protective shell (4) is formed in the middle of one end of the protective cover (2) away from the first protective shell (1), a micro motor (5) is provided in the first protective shell (1), a waterproof joint (6) is provided on the upper part of the side wall of the first protective shell (1) facing the protective cover (2), a micro reduction box (7) is provided in the second protective shell (4) on one side of the micro motor (5), the transmission output end of the micro motor (5) extends into the micro reduction box (7), a stabilizing plate (8) is provided on the periphery of one end of the transmission output end of the micro motor (5) extending into the micro reduction box (7), and the periphery of the transmission output end of the micro motor (5) between the stabilizing plate (8) and the inner wall of the micro reduction box (7) is provided. A first transmission gear (9) is connected via a key, a second transmission gear (10) is provided at the lower end of the first transmission gear (9), an output shaft (11) is provided in the middle of the second transmission gear (10), a first oil seal (12) is provided at a position connected to the transmission output end of the micro motor (5) on the inner wall of the micro reduction box (7), a first internal shaft sealing ring (13) is provided on the inner wall of the micro reduction box (7) on one side of the first oil seal (12), a second oil seal (14) is provided at a position connected to the output shaft (11) on the inner wall of the micro reduction box (7), a second internal shaft sealing ring (15) is provided on the inner wall of the micro reduction box (7) on one side of the second oil seal (14), and an external shaft sealing ring (16) is provided at a position connected to the output shaft (11) on the outer wall of the second protective shell (4).

2. The waterproof miniature reduction motor according to claim 1, characterized in that: The four corners of the protective cover (2) are connected to the first protective shell (1) by bolts, the outer sealing ring (3) is clamped between the first protective shell (1) and the protective cover (2), the micro motor (5) is plugged into the inner wall of the first protective shell (1), and the waterproof connector (6) is connected to the side wall of the first protective shell (1) by threads.

3. The waterproof miniature reduction motor according to claim 1, characterized in that: The four corners of the micro reduction box (7) are connected to the micro motor (5) by bolts, the transmission output end of the micro motor (5) is connected to the side wall of the micro reduction box (7) by a bearing, the first oil seal (12) is connected to the inner wall of the micro reduction box (7) by screws, and the first internal shaft sealing ring (13) is connected to the inner wall of the micro reduction box (7) by a slot.

4. The waterproof miniature reduction motor according to claim 1, characterized in that: The upper and lower parts of the stabilizing plate (8) are respectively connected to the two inner walls of the micro reduction box (7) through bolts, the transmission output end of the micro motor (5) is connected to the stabilizing plate (8) through a bearing, and the first transmission gear (9) and the second transmission gear (10) are engaged and connected through a key.

5. The waterproof miniature reduction motor according to claim 1, characterized in that: The middle portion of the second transmission gear (10) is connected to the output shaft (11) via a key, the output shaft (11) is connected to the stabilizing plate (8) via a bearing, and the output shaft (11) is connected to the side wall of the micro reduction box (7) and the side wall of the second protective shell (4) via bearings.

6. The waterproof miniature reduction motor according to claim 1, characterized in that: The second oil seal (14) and the second internal sealing ring are both connected to the inner wall of the micro reduction box (7) through a slot, and the external shaft sealing ring (16) is connected to the outer wall of the second protective shell (4) through a slot.

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