Dustproof sealing device of servo motor

Abstract

The utility model is suitable for the technical field of servo motor dustproof sealing, and provides a servo motor dustproof sealing device comprising a servo motor; the output shaft penetrates through the central position of the outer side wall of the servo motor; the driving bevel gear is fixed on the outer side wall of the output shaft; the dustproof sealing cover is fixed on the outer side wall of the servo motor through a bolt; the cover cap is fixed on the outer side wall of the dustproof sealing cover through a screw; the inner partition plate is welded on the inner side wall of the dustproof sealing cover; the shaft holes are formed in the centers of the outer side walls of the cover cap and the inner partition plate; the impeller is driven to rotate by utilizing conveying power of the servo motor, so that gas in the dustproof sealing cover is exhausted to form a negative pressure environment, and due to the existence of negative pressure, air in the dustproof sealing cover and dust in the air cannot enter the servo motor along a gap between the servo motor and the output shaft; therefore, the dustproof sealing effect on the servo motor is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dustproof sealing of servo motors, in particular to a dustproof sealing device for servo motors. Background Art

[0002] A servo motor is a rotary or linear actuator that allows precise control of angular velocity or linear position, speed and acceleration and consists of a suitable electric motor connected to a sensor for position feedback.

[0003] Most existing servo motor dust seals use sealing rings to seal the outside of the servo motor's output end. Since the sealing ring will gradually age and deform under pressure, the servo motor's dust sealing will be low, and dust in the air will enter the interior of the servo motor and affect the operation of components.

[0004] Therefore, a servo motor dustproof sealing device is proposed. Utility Model Content

[0005] The utility model provides a servo motor dustproof sealing device, aiming to solve the above problems.

[0006] The utility model is implemented as follows: a servo motor dustproof sealing device comprises: a servo motor; an output shaft passing through the central position of the outer side wall of the servo motor; an active bevel gear fixed to the outer side wall of the output shaft; a dustproof sealing cover fixed to the outer side wall of the servo motor by bolts; a cover fixed to the outer side wall of the dustproof sealing cover by screws; an inner partition welded to the inner side wall of the dustproof sealing cover; axial holes both provided at the central positions of the outer side walls of the cover and the inner partition; an air outlet provided on the outer side wall of the dustproof sealing cover; and an inner ring cover welded to a position on one side of the inner side wall of the dustproof sealing cover close to the air outlet; a support plate welded to a position on one side of the outer side wall of the inner partition close to the axial hole; a rotating rod passing through and rotating on the outer side wall of the support plate; a driven bevel gear fixed to one end of the rotating rod; and an impeller fixed to the outer side wall of the rotating rod by screws.

[0007] Preferably, the driving bevel gear and the driven bevel gear are connected via gear tooth meshing.

[0008] Preferably, the output shaft passes through the shaft holes on the cover and the inner partition.

[0009] Preferably, the impeller is located inside the inner ring cover.

[0010] Preferably, the cross section of the dustproof sealing cover is a T-shaped structure.

[0011] Preferably, there are two support plates in total, and the two support plates are symmetrically arranged on the outer side wall of the inner partition.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] By utilizing the transmission power of the servo motor to drive the impeller to rotate, the gas in the dust sealing cover is discharged to form a negative pressure environment. Due to the existence of negative pressure, the air in the dust sealing cover and the dust in the air will not enter the servo motor along the gap between the servo motor and the output shaft, thereby achieving the function of dustproof sealing for the servo motor and avoiding the problem of reduced sealing due to aging and deformation of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of explosion of the dustproof sealing cover of the utility model;

[0016] Figure 3 It is a schematic diagram of the servo motor structure of the utility model;

[0017] Figure 4 It is a cross-sectional view of the dustproof sealing cover of the utility model.

[0018] In the figure: 1. servo motor; 2. output shaft; 3. driving bevel gear; 4. dustproof sealing cover; 5. cover; 6. inner partition; 7. shaft hole; 8. air outlet; 9. inner ring cover; 10. support plate; 11. rotating rod; 12. driven bevel gear; 13. impeller. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The utility model provides a servo motor dustproof sealing device, such as Figure 1-4 As shown, it includes a servo motor 1, an output shaft 2 is rotatably passed through the outer wall of one side of the servo motor 1, a driving bevel gear 3 is fixed on the outer wall of one side of the output shaft 2, a dustproof sealing cover 4 is fixedly connected to the outer wall of one side of the end cover on the servo motor 1 by bolts, the cross section of the dustproof sealing cover 4 is a T-shaped structure, a cover 5 is fixedly connected to the outer wall of the dustproof sealing cover 4 on the side away from the servo motor 1 by screws, and an inner partition 6 is welded on the inner wall of one side of the dustproof sealing cover 4, and an axial hole 7 is opened at the central position of the inner partition 6 and the outer wall of one side of the dustproof sealing cover 4, and the output shaft 2 passes through the cover 5 and the inner An axial hole 7 on the partition 6, an air outlet 8 is opened on the outer wall of one side of the dust-proof sealing cover 4, and an inner ring cover 9 is welded on the inner wall of one side of the dust-proof sealing cover 4 at a position close to the air outlet 8, a support plate 10 is welded on the outer wall of one side of the inner partition 6, and there are two support plates 10 in total, and the two support plates 10 are symmetrically arranged on the outer wall of the inner partition 6, a rotating rod 11 passes through the outer wall of one side of the support plate 10, a driven bevel gear 12 is arranged at one end of the rotating rod 11, and an impeller 13 is fixedly connected to the outer wall of one side of the rotating rod 11 by screws, and the impeller 13 is located on the inner side of the inner ring cover 9.

[0022] It should be noted that, since the sealing ring used for dust-proof sealing of the existing servo motor will gradually age and deform under pressure, the dust-proof sealing of the servo motor will be low, and the dust in the air will enter the interior of the servo motor and affect the operation of the components. In this embodiment, the transmission power of the servo motor 1 is used to drive the impeller 13 to rotate, so that the gas in the dust-proof sealing cover 4 is discharged to form a negative pressure environment. Due to the existence of negative pressure, the air in the dust-proof sealing cover 4 and the dust in the air will not enter the servo motor 1 along the gap between the servo motor 1 and the output shaft 2, thereby achieving the effect of dust-proof sealing of the servo motor 1 and avoiding the problem of reduced sealing due to aging and deformation of the sealing ring.

[0023] Specifically, in the present embodiment, the present scheme mainly includes a dustproof sealing cover 4. When the servo motor 1 is dust-sealed, when the servo motor 1 is powered on, the output shaft 2 on the servo motor 1 rotates, and the driving bevel gear 3 on the output shaft 2 rotates synchronously. Through the meshing connection between the driving bevel gear 3 and the driven bevel gear 12, the driving bevel gear 3 drives the driven bevel gear 12 to rotate, and the driven bevel gear 12 drives the rotating rod 11 and the impeller 13 to rotate. After the impeller 13 rotates, the air in the dustproof sealing cover 4 is discharged through the air outlet 8 and the inner ring cover 9, and a negative pressure environment is formed in the dustproof sealing cover 4. The air outside the dustproof sealing cover 4 enters the dustproof sealing cover 4 through the gap between the output shaft 2 and the shaft hole 7. Due to the existence of negative pressure, the air in the dustproof sealing cover 4 and the dust in the air will not enter the servo motor 1 along the gap between the servo motor 1 and the output shaft 2, thereby achieving the effect of dustproof sealing of the servo motor 1. The blown wind can also increase the air flow rate outside the servo motor 1, thereby accelerating the heat dissipation efficiency of the servo motor 1.

[0024] In a further preferred embodiment of the present invention, Figure 4 As shown, the driving bevel gear 3 and the driven bevel gear 12 are connected via gear tooth meshing.

[0025] In this embodiment, the active bevel gear 3 can drive the driven bevel gear 12 to rotate through the meshing connection, thereby realizing the rotation of the rotating rod 11.

[0026] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0027] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0028] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0029] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A servo motor dustproof sealing device, characterized in that: include: Servo motor (1); An output shaft (2) passing through the central position of the outer side wall of the servo motor (1); A driving bevel gear (3) fixed to the outer side wall of the output shaft (2); A dustproof sealing cover (4) fixed to the outer side wall of the servo motor (1) by means of bolts; A cover (5) fixed to the outer side wall of the dustproof sealing cover (4) by screws; An inner partition plate (6) welded to the inner side wall of the dustproof sealing cover (4); Axial holes (7) are provided at the central positions of the outer side walls of the cover (5) and the inner partition (6); An air outlet (8) is provided on the outer side wall of the dustproof sealing cover (4); and An inner ring cover (9) welded to the inner side wall of the dustproof sealing cover (4) at a position close to the air outlet (8); A support plate (10) welded to the outer wall of the inner partition plate (6) at a position close to the shaft hole (7); A rotating rod (11) penetrating and rotating on the outer wall of the support plate (10); a driven bevel gear (12) fixed to one end of the rotating rod (11); and An impeller (13) is fixed to the outer wall of the rotating rod (11) by means of screws.

2. The servo motor dustproof sealing device according to claim 1, characterized in that: The driving bevel gear (3) and the driven bevel gear (12) are connected via gear tooth meshing.

3. The servo motor dustproof sealing device according to claim 1, characterized in that: The output shaft (2) passes through the cover (5) and the shaft hole (7) on the inner partition (6).

4. The servo motor dustproof sealing device according to claim 1, characterized in that: The impeller (13) is located on the inner side of the inner ring cover (9).

5. The servo motor dustproof sealing device according to claim 1, characterized in that: The cross section of the dustproof sealing cover (4) is a T-shaped structure.

6. The servo motor dustproof sealing device according to claim 1, characterized in that: Two support plates (10) are provided in total, and the two support plates (10) are symmetrically arranged on the outer side wall of the inner partition plate (6).

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