Connecting structure of magnetic locking screw and speed reducer

Abstract

The utility model provides a magnetic locking screw and speed reducer connecting structure which comprises a motor, a reduction gearbox and a driving screw, the reduction gearbox is connected with a motor shaft of the motor, a protruding driving shaft is arranged on the reduction gearbox, a mounting hole is formed in the driving screw, the driving shaft is mounted in the mounting hole, and the driving shaft is connected with the motor shaft of the motor. A first strong magnet is arranged at the end of the driving shaft, a second strong magnet is arranged on the mounting hole, the first strong magnet and the second strong magnet are attracted so that the driving screw can be mounted on the driving shaft, the first strong magnet is arranged on the driving shaft of the reduction gearbox, and the second strong magnet is arranged on the driving screw. The first strong magnet and the second strong magnet are attracted together, the driving screw and the driving shaft are attracted together all the time under the action of the magnetic field of the strong magnets, looseness caused by vibration is avoided, installation is convenient, and the structure is simple and reasonable.

Description

Technical Field

[0001] The utility model relates to a magnetic locking screw and a reducer connection structure Background Art

[0002] The traditional installation method of the screw and the reducer is to fix them with screws and nuts, but this locking method of the structure is difficult to lock, and because the reducer and the screw will vibrate during operation, the nuts and screws are prone to loosening after long-term operation, and even cause failures. Utility Model Content

[0003] The utility model proposes a magnetic locking screw and reducer connection structure, which includes a motor, a reduction box and a drive screw. The reduction box is connected to the motor shaft of the motor. The reduction box is provided with a protruding drive shaft. The drive screw is provided with a mounting hole. The drive shaft is installed on the mounting hole. A first strong magnet is provided at the end of the drive shaft. A second strong magnet is provided on the mounting hole. The first strong magnet and the second strong magnet are attracted to each other so that the drive screw is installed on the drive shaft.

[0004] In one or more embodiments, the first ferromagnet is fixedly connected to the drive shaft or the first ferromagnet is embedded in the drive shaft.

[0005] In one or more embodiments, when the first ferromagnet is fixedly connected to the drive shaft, a countersunk connecting screw hole is provided on the first ferromagnet, and the first ferromagnet and the drive shaft are connected together by screws.

[0006] In one or more embodiments, two second strong magnets are provided on the mounting hole, and the second strong magnets are connected to the mounting hole by screws.

[0007] In one or more embodiments, the drive shaft is provided with a first shaft section, a limiting notch is provided on the first shaft section, and a protrusion that cooperates with the limiting notch is provided on the mounting hole.

[0008] In one or more embodiments, a second shaft segment is further provided on the drive shaft, the diameter of the second shaft segment is smaller than the diameter of the first shaft segment, and the depth of the limiting notch is less than or equal to the diameter difference between the second shaft segment and the first shaft segment.

[0009] In one or more embodiments, the drive shaft is provided with a third shaft segment, the diameter of the third shaft segment is smaller than the diameter of the second shaft segment, and the second strong magnet is fixedly connected to the third shaft segment.

[0010] The beneficial effects of the utility model are as follows: a first strong magnet is provided on the drive shaft of the reduction gearbox, a second strong magnet is provided on the drive screw, and the first strong magnet and the second strong magnet are attracted to each other. The drive screw and the drive shaft are always attracted together under the action of the strong magnetic field and will not loosen due to vibration. The utility model is easy to install, has a simple and reasonable structure, and adopts a straight-in and straight-out installation method during disassembly and assembly, which makes the disassembly and assembly of the screw more efficient and convenient, and the operation is simple. It is convenient for users to disassemble the screw for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the disassembled structure of the magnetic locking screw and the reducer connection.

[0012] Figure 2 This is a cross-sectional diagram of the connection structure between the magnetic locking screw and the reducer.

[0013] Figure 3 This is a partially enlarged schematic diagram of the connection structure between the magnetic locking screw and the reducer. DETAILED DESCRIPTION

[0014] The present application is further described below with reference to the accompanying drawings:

[0015] See attached Figure 1-3 A magnetic locking screw and reducer connection structure includes a motor 1, a reduction gearbox 2 and a drive screw 3. The reduction gearbox 2 is connected to the motor shaft of the motor 1. The reduction gearbox 2 is provided with a protruding drive shaft 21. The drive screw 3 is provided with a mounting hole 31. The drive shaft 21 is installed on the mounting hole 1. The end of the drive shaft 21 is provided with a first ferromagnet 22. The mounting hole 31 is provided with a second ferromagnet 32. The first ferromagnet 22 and the second ferromagnet 32 are attracted to each other so that the drive screw 3 is installed on the drive shaft 21. The first ferromagnet 22 and the second ferromagnet 32 are magnets.

[0016] Preferably, the connection between the reduction box and the motor is a direct application of the existing technology, and the structure inside the reduction box is designed according to actual production needs, which will not be described in detail here.

[0017] Furthermore, the first ferromagnet 22 is fixedly connected to the driving shaft 21 or the first ferromagnet 22 is embedded in the driving shaft 21 .

[0018] Furthermore, when the first ferromagnet 22 is fixedly connected to the driving shaft 21 , a countersunk connecting screw hole 23 is provided on the first ferromagnet 22 , and the first ferromagnet 22 and the driving shaft 21 are connected together by screws.

[0019] Furthermore, the drive shaft 21 is provided with a first shaft section 24 , a limiting notch 25 is provided on the first shaft section 24 , and a convex portion 33 that cooperates with the limiting notch 25 is provided on the mounting hole 31 .

[0020] Furthermore, a second shaft segment 26 is provided on the drive shaft 21 . The diameter of the second shaft segment 26 is smaller than the diameter of the first shaft segment 24 , and the depth of the limiting notch 25 is smaller than or equal to the diameter difference between the second shaft segment 26 and the first shaft segment 24 .

[0021] Furthermore, the driving shaft 21 is provided with a third shaft segment 27 , the diameter of the third shaft segment 27 is smaller than the diameter of the second shaft segment 26 , and the second ferromagnet 22 is fixedly connected to the third shaft segment 27 .

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0024] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0025] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0027] The above preferred embodiments should be regarded as examples of the implementation methods of the present application scheme. Any technical deductions, replacements, improvements, etc. that are identical or similar to the present application scheme or made based on it should be regarded as within the scope of protection of this patent.

Claims

1. A magnetic locking screw and reducer connection structure, characterized in that: It includes a motor, a reduction gearbox and a driving screw, the reduction gearbox is connected to the motor shaft of the motor, the reduction gearbox is provided with a protruding driving shaft, the driving screw is provided with a mounting hole, the driving shaft is installed on the mounting hole, the end of the driving shaft is provided with a first ferromagnet, the mounting hole is provided with a second ferromagnet, the first ferromagnet and the second ferromagnet are attracted to each other so that the driving screw is installed on the driving shaft.

2. The magnetic locking screw and reducer connection structure according to claim 1, characterized in that: The first ferromagnet is fixedly connected to the drive shaft or the first ferromagnet is embedded in the drive shaft.

3. The magnetic locking screw and reducer connection structure according to claim 2, characterized in that: When the first ferromagnet is fixedly connected to the driving shaft, a countersunk connecting screw hole is provided on the first ferromagnet, and the first ferromagnet and the driving shaft are connected together by screws.

4. The magnetic locking screw and reducer connection structure according to claim 1, characterized in that: Two second strong magnets are provided on the mounting hole, and the second strong magnets are connected to the mounting hole through screws.

5. The magnetic locking screw and reducer connection structure according to claim 1, characterized in that: The drive shaft is provided with a first shaft section, a limiting notch is provided on the first shaft section, and a convex portion matching the limiting notch is provided on the mounting hole.

6. The magnetic locking screw and reducer connection structure according to claim 5, characterized in that: The drive shaft is further provided with a second shaft segment, the diameter of the second shaft segment is smaller than the diameter of the first shaft segment, and the depth of the limiting notch is smaller than or equal to the diameter difference between the second shaft segment and the first shaft segment.

7. The magnetic locking screw and reducer connection structure according to claim 6, characterized in that: The driving shaft is provided with a third shaft segment, the diameter of the third shaft segment is smaller than the diameter of the second shaft segment, and the second strong magnet is fixedly connected to the third shaft segment.

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