Electromagnetic shaftless driving propeller mechanism

Abstract

The utility model discloses an electromagnetic shaftless driving propeller mechanism which comprises a propeller arranged on the outer side of a shell, a connecting frame is arranged on the side, facing the shell, of the propeller, a driven magnet disc is arranged at the end of the connecting frame, and the connecting frame and / or the driven magnet disc are / is connected to the outer side of the shell through a rotating piece. A driving motor is installed on the inner side of the shell, the output end of the driving motor is connected with a driving magnet disc, and the driving magnet disc is arranged corresponding to the driven magnet disc and drives the driven magnet disc; and gaps are formed between the driven magnet disc and the shell and between the driving magnet disc and the shell. According to the mechanism, the propeller is driven to rotate in a magnetic driving mode, an original driving shaft and related connecting parts thereof are omitted, the maintenance difficulty of the propeller is lowered, and the problems of overheating, overload and the like of a driving motor can be solved; and the whole mechanism is simple in structure and convenient to operate and use.

Description

TECHNICAL FIELD

[0001] The utility model relates to propeller drive technical field, specifically relates to a kind of electromagnetic shaftless drive propeller mechanism. BACKGROUND

[0002] Propeller is one of the main components to drive the ship to walk, usually set on the outside of window, rely on internal motor to drive, to transmit power will be set through the transmission shaft of ship. The sealing of transmission shaft is very important, mainly waterproof, to prevent water from seeping into the ship, for this, modern ship needs to be waterproofed radial maintenance for propeller drive shaft, will produce spare parts replacement and other consumptions. In addition, traditional propeller blade is wound by water grass and other foreign matters, load is increased, which may cause motor overheating, even burnout phenomenon. SUMMARY

[0003] The utility model aims at the problems existing in prior art, provide a kind of electromagnetic shaftless drive propeller mechanism.

[0004] To achieve the above object, the technical scheme adopted by the utility model is:

[0005] An electromagnetic shaftless drive propeller mechanism, comprising a propeller arranged outside a housing, the propeller is provided with a connecting frame on the side facing the housing, the end of the connecting frame is provided with a driven magnet disc, the connecting frame and / or the driven magnet disc are connected to the outside of the housing through a rotary member; a drive motor is installed inside the housing, the output end of the drive motor is connected with a drive magnet disc, the drive magnet disc is arranged corresponding to the driven magnet disc and drives the driven magnet disc; the driven magnet disc and the drive magnet disc are both provided with a gap between the housing.

[0006] The electromagnetic shaftless drive propeller mechanism improves the driving mode of the propeller, adopts magnetic drive to drive the propeller to rotate, cancels the original drive shaft and its related connecting components, reduces the maintenance difficulty of the propeller, and can also reduce the problems of overheating and overloading of the drive motor; moreover, the whole mechanism has simple structure, convenient operation and use.

[0007] The drive magnet disc and the driven magnet disc are arranged opposite to each other, the drive magnet disc can be used to drive the driven magnet disc to rotate across the housing, the connecting frame can connect the propeller and the driven magnet disc, and the propeller can be driven to rotate synchronously when the driven magnet disc rotates, without the need to set a drive shaft penetrating through the housing, which can effectively ensure the integrity and sealing of the housing.

[0008] Further, the driving magnet disc and the driven magnet disc are both disc-shaped, and the driving magnet disc and the driven magnet disc are respectively provided with central symmetric permanent magnets, the permanent magnets on the driving magnet disc and the permanent magnets on the driven magnet disc are arranged one by one, which is beneficial to efficient energy transmission between the two.

[0009] Further, the magnetic properties of adjacent permanent magnets are different, and the magnetic properties of symmetric permanent magnets are the same.

[0010] Further, the driving magnet disc and the driven magnet disc are respectively provided with clamping grooves, and the permanent magnets are embedded or adhered in the clamping grooves.

[0011] Further, the inner side of the shell is provided with a mounting plate, the mounting plate is provided with a moving module, the driving motor is installed on the moving module, and the moving direction of the moving module is parallel to the axial direction of the driving motor. The rotation speed of the propeller can be adjusted by adjusting the gap (distance) between the two.

[0012] Further, the inner side of the shell is provided with an independent box space, and the driving motor and the driving magnet disc are arranged in the independent box space.

[0013] Further, the outer side of the shell is further provided with a magnetic guide plate, the magnetic field strength is improved by guiding the magnetic field lines, and the magnetic guide plate is located between the shell and the driven magnet disc.

[0014] Further, the rotating part is a bearing part, the bearing part is installed on the outer side of the shell, and the driven magnet disc is connected to the bearing part; or the rotating part includes a connecting shaft and a plurality of bearing parts, the connecting shaft is connected to the outer side of the shell, and the propeller, the driven magnet disc and the connecting frame are respectively connected to the connecting shaft through the bearing parts.

[0015] Compared with the prior art, the electromagnetic shaftless driving propeller mechanism has the advantages that: 1, the electromagnetic shaftless driving propeller mechanism improves the driving mode of the propeller, adopts the magnetic driving mode to drive the propeller to rotate, cancels the original driving shaft and related connecting components, reduces the maintenance difficulty of the propeller, and can reduce the problems of overheating and overloading of the driving motor; and the whole mechanism has simple structure, convenient operation and use; 2, the driving magnet disc and the driven magnet disc are oppositely arranged, the driving magnet disc can drive the driven magnet disc to rotate through the shell, the driving shaft penetrating through the shell is not needed, and the integrity and sealing performance of the shell can be effectively ensured; 3, the shell can be a ship shell, after the arrangement of the mechanism, the waterproof difficulty of the propeller driving shaft and the ship body can be reduced, the consumption problems of regular maintenance and replacement can be reduced, and the phenomenon of motor overheating and burning caused by the traditional propeller blades being wound by waterweeds and other foreign matters can be avoided; 4, through the arrangement of the moving module, the driving motor and the driving magnet disc thereon can be driven to synchronously linear reciprocate, so that the distance between the driving magnet disc and the driven magnet disc can be conveniently adjusted, the driving force can be changed, and the propeller power can be freely adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole schematic view of the electromagnetic shaftless driving propeller mechanism of the utility model;

[0017] Figure 2 It is another connection structure schematic view outside the shell of the electromagnetic shaftless driving propeller mechanism of the utility model;

[0018] In the figure: 1, shell; 2, propeller; 3, connecting frame; 4, driven magnet disc; 5, bearing piece; 6, driving magnet disc; 7, driving motor; 8, permanent magnet; 9, mounting plate; 10, sliding rail; 11, sliding block; 12, independent box space; 13, magnetic conducting plate; 14, connecting shaft. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figure 1 As shown, an electromagnetic shaftless propeller mechanism includes a propeller 2 disposed on the outside of a housing 1. A connecting frame 3 is provided on the side of the propeller 2 facing the housing 1. A driven magnet disk 4 is provided at the end of the connecting frame 3. The connecting frame 3 and / or the driven magnet disk 4 are connected to the outside of the housing 1 through a rotating component. A drive motor 7 is installed on the inside of the housing 1. The output end of the drive motor 7 is connected to a drive magnet disk 6. The drive magnet disk 6 is arranged correspondingly to the driven magnet disk 4 and drives the driven magnet disk 4. A gap is provided between the driven magnet disk 4 and the drive magnet disk 6 and the housing 1.

[0022] This electromagnetic shaftless propeller mechanism improves the driving method of the propeller 2 by adopting a magnetic drive to drive the propeller to rotate, eliminating the original drive shaft and its related connecting parts, reducing the maintenance difficulty of the propeller 2, and also reducing problems such as overheating and overload of the drive motor 7; moreover, the entire mechanism has a simple structure and is easy to operate and use.

[0023] The driving magnet disk 6 and the driven magnet disk 4 are arranged opposite to each other, and the driving magnet disk 6 can drive the driven magnet disk 4, which is separated from the housing 1, to rotate. There is no need to set a driving shaft through the housing, which can effectively ensure the integrity and sealing of the housing 1.

[0024] The drive motor 7 and the drive magnet disk 6 are located on the same side and connected together, and can drive the drive magnet disk 6 to rotate; the connecting frame 3 can connect the propeller 2 and the driven magnet disk 4, and can synchronously drive the propeller 2 to rotate when the driven magnet disk 4 rotates.

[0025] The housing 1 can be a ship hull. With the setting of this mechanism, the difficulty of waterproofing the connection between the propeller drive shaft and the hull can be reduced, and the consumption problems such as regular maintenance and replacement caused by it can be reduced. Moreover, it can avoid the phenomenon of motor overheating and burning out due to the traditional propeller blades being entangled by water plants and other foreign objects, and avoid motor overload and other problems.

[0026] Further, the driving magnet disc 6 and the driven magnet disc 4 are both disc-shaped, and the driving magnet disc 6 and the driven magnet disc 4 are respectively provided with central-symmetric permanent magnets 8, and the permanent magnets on the driving magnet disc 6 are arranged one-to-one with the permanent magnets on the driven magnet disc 4. The permanent magnets 8 can be strong magnets.

[0027] After the driving magnet disc 6 is driven, the permanent magnets 8 can convert power into a rotating magnetic field and transmit the rotating magnetic field, and the permanent magnets on the external driven magnet disc 4 receive the magnetic field and convert the magnetic field into power, and then rotate to drive the propeller 2 to rotate and generate thrust on the hull.

[0028] Further, the magnetic properties of adjacent permanent magnets 8 are different, and the magnetic properties of symmetric permanent magnets 8 are the same, and the permanent magnets on the driving magnet disc 6 are arranged one-to-one with the permanent magnets on the driven magnet disc 4 in this form, which is beneficial to efficient energy transmission between the two.

[0029] Further, the driving magnet disc 6 and the driven magnet disc 4 are respectively provided with clamping grooves, and the permanent magnets 8 are embedded or adhered in the clamping grooves. This connection method is relatively simple and convenient; in practice, according to the size of the magnet disc and the permanent magnet, welding or screw connection and the like can also be adopted.

[0030] The driving motor 7 is connected with a power supply through positive and negative connection posts. For small devices, direct current can be provided by the power supply, and small direct current voltage is used to drive the driving motor to drive the driving magnet disc to rotate, and the rotation rate of the propeller can be adjusted by adjusting the voltage, so as to adjust the forward speed of the entire hull.

[0031] On the other hand, since there is a gap between the driving magnet disc 6 and the driven magnet disc 4, and the size of the magnetic field has a certain relationship with the gap, the rotation speed of the propeller can be adjusted by adjusting the gap (distance) between the two.

[0032] Specifically, the inner side of the shell 1 is provided with a mounting plate 9, the mounting plate 9 is provided with a moving module, the driving motor 7 is mounted on the moving module, and the moving direction of the moving module is parallel to the axis direction of the driving motor 7.

[0033] Through the setting of the moving module, the driving motor and the driving magnet disc thereon can be driven to move linearly and reciprocally synchronously, so that the distance between the driving magnet disc and the driven magnet disc can be adjusted conveniently to realize the control of the rotation rate of the driven magnet disc.

[0034] The moving module can be a lead screw driven linear module, a synchronous belt driven linear module or a rack and pinion driven linear module, etc. In the embodiment, the form of slide rail 10 and slide block 11 is adopted, the slide rail 10 is arranged on one side of the mounting plate 9, the slide block 11 (electric slide block) is arranged on the slide rail 10, and the electric slide block is connected with the driving motor 7, so that the driving motor 7 can be driven to move.

[0035] Further, the inner side of the shell 1 is provided with an independent box space 12, the driving motor 7 and the driving magnet disc 6 are arranged in the independent box space 12, and the mounting plate 9 can be connected to the inner wall of the shell 1 or the independent box space 12.

[0036] The arrangement of the independent box space 12 can provide a relatively independent operation environment for the driving components, protect the driving components and reduce mutual interference with the external environment. The independent box space 12 is also provided with an openable and closable window and a heat dissipation grid for maintenance and heat dissipation of the internal components.

[0037] In some embodiments, as Figure 2 Further, the outer side of the shell 1 is also provided with a magnetic guide plate 13, the magnetic guide plate 13 is located between the shell 1 and the driven magnet disc 4, the magnetic guide plate 13 can be installed on the outer side of the shell or the outer side of the driven magnet disc through a connecting piece, or can be sleeved and installed on the rotating part. The magnetic guide plate 13 can improve the magnetic field strength by guiding the magnetic field lines. The magnetic guide plate 13 is a material with good magnetic guide performance, which can absorb and gather magnetic field lines and enhance the magnetic field strength, so as to improve the effect of electromagnetic field.

[0038] Further, the rotating part is a bearing part 5, the bearing part 5 is installed on the outer side of the shell 1, and the driven magnet disc 4 is connected with the bearing part 5. Through such arrangement, the rotatable driven magnet disc 4 can be supported outside the shell 1, and the propeller is also rotatably supported outside the shell under the connection of the connecting frame.

[0039] In some embodiments, for large devices, the rotating part can include a connecting shaft 14 and a plurality of bearing parts 5, the connecting shaft 14 is connected to the outer side of the shell 1, and the propeller 2, the driven magnet disc 4 and the connecting frame can be connected to the connecting shaft 14 through the bearing parts. The connecting shaft 14 and the bearing parts 5 can be more stably connected and installed with the propeller 2 and the driven magnet disc 4. The connecting shaft 14 is only connected with the shell 1 and does not penetrate the shell.

[0040] In the embodiment, the driving magnet disc 6 adopts strict circular geometry, and the strong permanent magnets with opposite adjacent magnetic poles and same symmetrical magnetic poles are adhered in the clamping slots at symmetrical geometric positions; the driven magnet disc 4 adopts the clamping slot design with the same shape as the driving magnet disc 6, and uses the same number and arrangement of strong permanent magnets, so as to facilitate the efficient energy transmission between the two magnet discs. When the device works, the internal power source converts the power into a rotating magnetic field through the strong permanent magnets fixed on the driving magnet disc 6, and the external driving device receives the magnetic field through the strong permanent magnets fixed on the driven magnet disc 4 and converts it into power, thereby rotating the blades of the propeller 2 and generating thrust on the ship body. Since the receiving efficiency of the magnetic field is related to the distance between the magnets, the distance between the internal and external structures can be adjusted by the slide rail and the sliding block to adjust the size of the propeller thrust on the ship.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic shaftless drive propeller mechanism comprising a propeller disposed outside a housing, characterized by, The propeller is provided with a connecting frame on one side of the shell, an end of the connecting frame is provided with a driven magnet disc, the connecting frame and / or the driven magnet disc are connected to the outside of the shell through a rotating part; a driving motor is installed on the inside of the shell, an output end of the driving motor is connected with a driving magnet disc, the driving magnet disc is arranged corresponding to the driven magnet disc and drives the driven magnet disc; The driven magnet disc and the driving magnet disc are both provided with a gap between the shell.

2. The electromagnetic shaftless drive propeller mechanism of claim 1, wherein, The driving magnet disc and the driven magnet disc are both disc-shaped, the driving magnet disc and the driven magnet disc are respectively provided with central symmetrical permanent magnets, the permanent magnets on the driving magnet disc are arranged corresponding to the permanent magnets on the driven magnet disc one by one.

3. The electromagnetic shaftless drive propeller mechanism of claim 2, wherein, The magnetic properties of adjacent permanent magnets are different, the magnetic properties of symmetrical permanent magnets are the same.

4. The electromagnetic shaftless drive propeller mechanism of claim 2, wherein, The driving magnet disc and the driven magnet disc are respectively provided with clamping grooves, the permanent magnets are embedded or adhered in the clamping grooves.

5. The electromagnetic shaftless drive propeller mechanism of claim 1, wherein, The inside of the shell is provided with a mounting plate, the mounting plate is provided with a moving module, the driving motor is installed on the moving module, the moving direction of the moving module is parallel to the axial direction of the driving motor.

6. The electromagnetic shaftless drive propeller mechanism of claim 1, wherein, The inside of the shell is provided with an independent box space, the driving motor and the driving magnet disc are both arranged in the independent box space.

7. The electromagnetic shaftless drive propeller mechanism of claim 1, wherein, The outside of the shell is further provided with a magnetic guide plate, the magnetic guide plate is located between the shell and the driven magnet disc.

8. The electromagnetic shaftless drive propeller mechanism of claim 1, wherein, The rotating part is a bearing part, the bearing part is installed on the outside of the shell, the driven magnet disc is connected to the bearing part; or, the rotating part includes a connecting shaft and a plurality of bearing parts, the connecting shaft is connected to the outside of the shell, the propeller, the driven magnet disc and the connecting frame are respectively connected to the connecting shaft through the bearing parts.

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