WO2020164043A1 - 全浸式水下推进器和电动浮板 - Google Patents
全浸式水下推进器和电动浮板 Download PDFInfo
- Publication number
- WO2020164043A1 WO2020164043A1 PCT/CN2019/075054 CN2019075054W WO2020164043A1 WO 2020164043 A1 WO2020164043 A1 WO 2020164043A1 CN 2019075054 W CN2019075054 W CN 2019075054W WO 2020164043 A1 WO2020164043 A1 WO 2020164043A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- propeller
- fully immersed
- shaft
- stator
- mounting base
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
Definitions
- the solution involves a fully immersed underwater propeller and an electric floating board.
- the main method of the existing underwater motor is to transform the outer-rotating brushless motor, and apply anti-corrosion technology to the stator and rotor to achieve waterproofing.
- the stator and rotor cannot be disassembled. Once impurities enter the motor, it cannot be repaired; in addition, , The blade is installed on the motor rotor, because the rotor itself has a diameter, the effective area of the blade is reduced, and the thrust generated under the same power is also reduced.
- a fully immersed underwater propeller including:
- a thruster housing which includes a mounting base having opposite first and second sides;
- the propeller blade is located on one side of the first side;
- a drive motor for rotating the propeller blade includes a stator part and a rotor part, the stator part is fixed on the second side;
- a motor shaft having opposite first and second ends, the first end is fixed to the stator part of the drive motor, and the second end extends beyond the drive motor and is connected to the propeller blade ;as well as
- a flow deflector for guiding water flow to the propeller blades the flow deflector being arranged between the mounting base and the propeller blades;
- An anti-rotation structure is provided between the motor shaft and the propeller blade to restrict the relative rotation of the two.
- the stator part includes a hollow support shaft provided through the mounting base, a circular stator base fixed to the mounting base, and an iron core member for winding windings;
- the stator base There is a shaft assembly hole for the support shaft to pass through, the support shaft is screwed and fixed with the stator base; the iron core member is sleeved on the outside of the support shaft, and the support shaft is provided for the motor
- the shaft through hole through which the shaft passes, the motor shaft and the support shaft are provided with bearings;
- the rotor part includes a rotor end cover, a cylindrical rotor housing, a plurality of magnetic elements, and the magnetic element A ring-shaped magnet holder held on the rotor housing; the rotor end cover is fixed to the first end of the motor shaft, the rotor housing is sleeved on the outer circumference of the stator part, and a plurality of the The magnetic elements are arranged on the inner side of the rotor housing and are arranged at intervals along the circum
- a positioning flange used to restrict the relative movement of the support shaft and the stator base is protruded on the outer wall of the support shaft.
- a plurality of first fixing holes are opened on the stator base, and the plurality of first fixing holes are arranged around the outer periphery of the shaft assembly hole; the mounting base of the thruster housing is provided with A plurality of second fixing holes corresponding to the first fixing holes, and a plurality of third fixing holes corresponding to the second fixing holes are opened on the air deflector.
- the anti-rotation structure includes a first non-circular hole opened on the propeller blade and a connecting portion that is arranged on the motor shaft and matches the shape of the first non-circular hole;
- the propeller blade is fixed on the motor shaft by a blade nut, a threaded part is formed on the outer wall of the connecting part, and a threaded fitting part that is threadedly fitted with the threaded part is formed on the inner wall of the blade nut.
- a gasket is sleeved on the connecting part, the gasket has a second non-circular hole matching the shape of the connecting part, and the gasket is arranged on the propeller blade and connected with One end of the blade nut is opposite to the other end.
- the flow deflector is in a hemispherical shape, and the radius of the flow deflector is tapered from the mounting base to the direction of the propeller blade.
- the propeller blade includes a propeller barrel and a plurality of blades, and the plurality of blades alternately surround the outer circumference of the propeller barrel.
- a filling body is arranged in the driving motor, and the filling body covers the stator part.
- An electric floating board includes the above-mentioned fully immersed underwater propeller.
- the fully immersed underwater propeller provided by this solution includes the propeller housing, propeller blades, drive motor, motor shaft, and deflector.
- the components are easy to disassemble and assemble, and the propeller is enlarged.
- the effective area of the leaf and the water flow, and can balance the axial force of the motor shaft, so that the bearing has a longer service life.
- the electric floating plate provided by this scheme adopts the above-mentioned fully immersed underwater propeller. In this way, the effective area of the contact between the propeller blade and the water flow can be effectively increased, the sneak speed can be greatly improved, and the propulsion Service life.
- Figure 1 is a three-dimensional schematic diagram of a fully immersed underwater propeller provided by an embodiment of this solution
- Figure 2 is the first exploded schematic diagram of the fully immersed underwater propeller provided by the embodiment of this scheme
- Figure 3 is the second exploded schematic diagram of the fully immersed underwater propeller provided by the embodiment of this scheme.
- Fig. 4 is a schematic cross-sectional view of the A-A plane in Fig. 1.
- the fully immersed underwater propeller 100 includes a propeller housing 10, a propeller blade 20, a driving motor 30, a motor shaft 40, and a deflector 50.
- the propeller housing 10 includes a mounting base 11, The base 11 has opposite first sides 11a and second sides 11b, and the propeller blade 20 is located on one side of the first side 11a of the mounting base 11; the driving motor 30 is used to rotate the propeller blade 20, and the driving motor 30 includes a stator part 31 and The rotor part 32 and the stator part 31 are fixed on the second side 11b of the mounting base 11; the motor shaft 40 has opposite first and second ends 40a and 40b, and the first end 40a of the motor shaft 40 and the stator of the driving motor 30 The part 31 is fixed, and the second end 40b extends beyond the drive motor 30 and is connected to the propeller blade 20; the deflector 50 is used to guide the water flow to the propeller blade 20, and the deflector 50 is arranged between the mounting base 11 and the propeller blade 20 Between the motor shaft 40 and the motor
- the above-mentioned fully immersed underwater propeller 100 includes a propeller housing 10, a propeller blade 20, a driving motor 30, a motor shaft 40, and a deflector 50.
- the components are easy to disassemble and assemble, and the propeller blade 20 is enlarged.
- the effective area that interacts with the water flow can balance the axial force of the motor shaft 40, so that the bearing has a longer service life.
- the fully immersed underwater propeller 100 of this embodiment includes a propeller housing 10, a propeller blade 20, a driving motor 30, a motor shaft 40, and a deflector 50.
- the thruster housing 10 includes a mounting base 11, in this embodiment, the thruster housing 10 includes a substantially cylindrical outer cylinder portion 12, the outer cylinder portion 12 is open at both ends With a hollow structure, the mounting base 11 is located approximately in the center of the outer tube 12, and connecting pillars 13 and 14 are formed between the outer wall of the mounting base 11 and the inner wall of the outer tube 12.
- the number of the connecting column portions is but not limited to three, and the three connecting column portions are arranged at equal intervals in the circumferential direction of the mounting base 11.
- the 11-position installation base divides the inside of the outer cylinder 12 into a driving cavity (left side in the figure) and a power cavity (right side in the figure) that communicate with each other.
- the driving motor 30 is assembled in the driving cavity, and the air deflector 50, The propeller blade 20 is located in the power chamber. It is easy to understand that the mounting base 11 is supported in the outer cylinder part 12 by the connecting column part, and the water flow space is formed between the adjacent connecting column parts, and the propeller blade 20 is driven by the motor 30 After the driving rotation, the water flow between the driving cavity and the power cavity is caused to make the fully immersed underwater propeller 100 swim.
- the mounting base 11 has a first side 11a (right side shown) and a second side 11b (left side shown) opposite to each other.
- the second side 11b of the mounting base 11 is provided with a mounting groove 111,
- the two connecting column parts 13 and 14 are divided into a first connecting column part 13 and two second connecting column parts 14.
- the first connecting column part 13 has a wire slot 131 for the power cord to pass through. One end of 131 extends to the inner wall of the assembly groove 111 and communicates with the assembly groove 111.
- the driving motor 30 is connected to the propeller blade 20 through a motor shaft 40 to rotate the propeller blade 20.
- the driving motor 30 includes a stator part 31 and a rotor part 32.
- the stator part 31 is fixed on the second side 11b.
- the drive motor 30 is an outward-rotating brushless waterproof motor, which adopts a rear-out shaft structure (that is, the motor shaft 40 extends from the right end of the drive motor 30 as shown in the figure).
- the stator part 31 includes a hollow support shaft 311 provided through the mounting base 11, a circular stator base 312 fixed to the mounting base 11, and a core member 313 for winding windings.
- the stator base 312 is installed in the assembly slot 111.
- the stator base 312 has a shaft assembly hole 314 for the support shaft 311 to pass through.
- the support shaft 311 is screwed and fixed to the stator base 312, and the iron core member 313 is sleeved on the support shaft.
- the outside of the 311 is supported by the support shaft 311.
- the support shaft 311 has a shaft through hole 315 through which the power supply shaft 40 passes.
- the motor shaft 40 and the support shaft 311 are provided with a bearing 316.
- the rotor part 32 includes a shaft rotor end cover 321, a cylindrical rotor housing 322, a plurality of magnetic elements 323, and an annular magnet support 324 for holding the magnetic elements 323 on the rotor housing 322.
- the shaft rotor end cover 321 is fixed to the first end 40a of the motor shaft 40, the rotor housing 322 is sleeved on the outer circumference of the stator part 31, and a plurality of magnetic elements 323 are arranged inside the rotor housing 322 and along the circumference of the rotor housing 322 Interval settings.
- the installation process of the stator part 31 is: after the support shaft 311 and the stator base 312 are screwed and fixed, the iron core member 313 is sleeved on the outside of the support shaft 311, and then the stator base 312 is inserted into the assembly slot In 111, the stator base 312 and the mounting base 11 are connected and fixed by screws.
- the installation process of the rotor part 32 is: the shaft rotor end cover 321, the rotor housing 322, the magnetic element 323 and the magnet bracket 324 are integral components connected and fixed to each other, and the shaft rotor end cover 321 and the motor shaft 40 can be tightly fitted. All existing fixing methods are connected and fixed. After the motor shaft 40 is inserted into the support shaft 311, and the second end 40b extending out of the support shaft 311 is locked with the blade nut 60, the rotor part 32 is installed.
- a positioning flange 317 for restricting the relative movement of the support shaft 311 and the stator base 312 is protruded on the outer wall of the support shaft 311. In this way, the support shaft 311 and the stator base 312 can be limited, which is convenient for installation. .
- a filling body (not shown) is provided in the driving motor 30, and the filling body covers the stator part 31.
- the filling body is, but not limited to, epoxy resin, which is coated on the core member 313 , Covering at least the core member 313 and the windings to achieve the waterproof effect of the stator part 31.
- the deflector 50 is used to guide the water flow to the propeller blade 20.
- the deflector 50 is arranged between the mounting base 11 and the propeller blade 20.
- the deflector 50 has a hemispherical shape.
- the baffle 50 is tapered in radius from the mounting base 11 to the direction of the propeller blade 20.
- the deflector 50, the mounting base 11, and the stator base 312 are sequentially connected and fixed by screws.
- the stator base 312 is provided with a plurality of first fixing holes 318, and the plurality of first fixing holes 318 are arranged around the outer periphery of the shaft assembly hole 314
- the mounting base 11 of the thruster housing 10 is provided with a plurality of second fixing holes 112 corresponding to the first fixing holes 318
- the baffle 50 is provided with a plurality of third fixing holes 112 corresponding to the second fixing holes Fixing hole 51.
- the surface of the deflector 50 is a smooth arc surface, so as to guide the flow of water on its surface, so that the water flow can smoothly transition to the propeller blade 20, which can effectively increase the drainage of the propeller blade 20. Effective area, improve the speed of advance.
- a positioning notch 52 is formed on the edge of the air deflector 50, and a positioning protrusion 113 corresponding to the positioning notch 52 is formed on the surface of the first side 11a of the mounting base 11, so as to facilitate the installation of the air deflector 50.
- the propeller blade 20 is located on the side of the first side 11 a of the mounting base 11, and includes a propeller barrel 21 and a plurality of blades 22, and the plurality of blades 22 surround the outer circumference of the propeller barrel 21 alternately.
- each blade 22 is spirally arranged from the inner end (left end in the figure) to the outer end (right end in the figure) of the propeller barrel 21, and the radius of one end of the deflector 50 is the same as that of the motor.
- the outer diameter is basically the same, and the radius at the other end is basically the same as the outer diameter of the propeller barrel 21.
- the motor shaft 40 has a first end 40a and a second end 40b opposite, the first end 40a is fixed to the stator portion 31 of the drive motor 30, and the second end 40b extends beyond the drive motor 30 and Connected to the propeller blade 20, a rotation stop structure is provided between the motor shaft 40 and the propeller blade 20 to restrict the relative rotation of the two.
- the anti-rotation structure includes a first non-circular hole 211 provided on the propeller barrel 21 of the propeller blade 20 and a connection provided on the motor shaft 40 and matching the shape of the first non-circular hole 211 Part 41; the propeller blade 20 is fixed to the motor shaft 40 by a blade nut 60, a threaded portion 42 is formed on the outer wall of the connecting portion 41, and a threaded fitting portion 61 is formed on the inner wall of the blade nut 60 to be threaded with the threaded portion 42 .
- the blade nut 60 is tightened, the propeller blade 20 and the motor shaft 40 are connected and fixed.
- the rotor part 32 of the driving motor 30 can be removed, especially after the mud is mixed in. Disassembly and cleaning, convenient for cleaning and maintenance.
- the length of the motor shaft 40 is preferably 109 mm, and the length of the connecting portion 41 thereof is preferably 23 mm.
- the first non-circular hole 211 may have a "D" shape, a waist shape, etc., to prevent the propeller blade 20 and the motor shaft 40 from falling apart. Design purpose for relative rotation. It is worth mentioning that the first end 40a of the motor shaft 40 is fixed to the shaft rotor end cover 321 of the rotor part 32, and the second end 40b passes through the drive motor 30 through the support shaft 311 of the stator part 31.
- the propeller blade 20 is held at the end of the second end 40b, that is, the output shaft end of the drive motor 30 is lengthened, and the two ends of the motor shaft 40 are connected to the rotor part 32 and the propeller blades, which can effectively balance the motor shaft
- the axial force on both ends of the 40 balances the axial load of the bearing and increases the service life of the bearing.
- a gasket 70 is sleeved on the connecting portion 41, the gasket 70 has a second non-circular hole 71 that matches the shape of the connecting portion 41, and the gasket 70 is provided on the propeller.
- the shim 70 can prevent the direct friction between the propeller and the drive motor 30, and provide a limit function at the same time. This design can make a proper gap between the propeller and the drive motor 30, and at the same time it will not be locked by the blade nut 60 And squeeze the drive motor 30.
- the electric floating board provided by this embodiment includes the above-mentioned fully immersed underwater propeller 100, which can effectively increase the effective area of the propeller blade 20 in contact with the water flow, greatly increase the sneak speed, and have a longer service life .
Abstract
一种全浸式水下推进器（100）和电动浮板，其包括推进器壳体（10）、螺旋桨叶（20）、驱动电机（30）、电机轴（40）以及导流罩（50），推进器壳体（10）包括一安装基部（11），安装基部（11）具有相对的第一侧（11a）和第二侧（11b），螺旋桨叶（20）位于该安装基部（11）第一侧（11a）的一侧；驱动电机（30）用于使螺旋桨叶（20）转动，驱动电机（30）包括定子部分（31）和转子部分（32），定子部分（31）固定在该安装基部（11）的第二侧（11b）上；电机轴（40）具有相对的第一端（40a）和第二端（40b），电机轴（40）的第一端（40a）与驱动电机（30）的定子部分（31）固定，第二端（40b）延伸至驱动电机（30）之外并与螺旋桨叶（20）连接；导流罩（50）设置在安装基部（11）与螺旋桨叶（20）之间，电机轴（40）与螺旋桨叶（20）之间设置有止转结构，以限制二者相对转动。这样，能够大大提高潜行速度，并具有较长的使用寿命。
Description
本方案涉及一种全浸式水下推进器和电动浮板。
现有的水下电机主要的方式是改造外转无刷电机，将其定子和转子应用防腐蚀工艺处理，实现防水，定子和转子不能拆开，一旦有杂质进入电机，将无法维修处理；此外，桨叶是装在电机转子上，由于转子自身也有直径，浆叶的有效面积减少了，同样的功率下产生的推力也会减少。
本方案的目的在于提供一种全浸式水下推进器和电动浮板，以解决现有技术中存在的螺旋桨叶与水流相作用的有效面积的利用率较低，且电机不方便拆卸维修的技术问题。
一种全浸式水下推进器，包括：
推进器壳体，其包括一安装基部，所述安装基部具有相对的第一侧和第二侧；
螺旋桨叶，位于所述第一侧的一侧；
驱动电机，用于使所述螺旋桨叶转动，所述驱动电机包括定子部分和转子部分，所述定子部分固定在所述第二侧上；
电机轴，其具有相对的第一端和第二端，所述第一端与所述驱动电机的定子部分固定，所述第二端延伸至所述驱动电机之外并与所述螺旋桨叶连接；以及
导流罩，用于将水流引导至所述螺旋桨叶，所述导流罩设置在所述安装基部与所述螺旋桨叶之间；
所述电机轴与所述螺旋桨叶之间设置有止转结构，以限制二者相对转动。
进一步地，所述定子部分包括穿设所述安装基部设置的中空的支撑轴、与所述安装基部固定的圆形的定子基座以及用于绕制绕组的铁芯构件；所述定子基座具有供所述支撑轴穿过的轴装配孔，所述支撑轴与所述定子基座螺纹连接固定；所述铁芯构件套设在所述支撑轴外侧，所述支撑轴具有供所述电机轴穿过的轴通孔，所述电机轴与所述支撑轴设置有轴承；所述转子部分包括转子端盖、圆筒状的转子外壳、多个磁性元件，以及用以将所述磁性元件保持在所述转子外壳上的圆环形的磁铁支架；所述转子端盖与所述电机轴的第一端固定，所述转子外壳套设在所述定子部分的外周上，多个所述磁性元件设置在所述转子外壳的内侧，并沿转子外壳的周向间隔设置。
进一步地，所述支撑轴的外壁上凸设有用以限制所述支撑轴与所述定子基座相对移动的定位凸缘。
进一步地，所述定子基座上开设有多个第一固定孔，多个所述第一固定孔绕设在所述轴装配孔的外周；所述推进器壳体的安装基部上开设有与所述第一固定孔对应的多个第二固定孔，所述导流罩上开设有开设有与所述第二固定孔对应的多个第三固定孔。
进一步地，所述止转结构包括开设于所述螺旋桨叶上的第一非圆形孔以及设置在所述电机轴上且与所述第一非圆形孔的形状相匹配的连接部；所述螺旋桨叶通过桨叶螺母固定在所述电机轴上，所述连接部的外壁上形成有螺纹部，所述桨叶螺母的内壁上形成有与所述螺纹部螺纹配合的螺纹配合部。
进一步地，所述连接部上套设有垫片，所述垫片具有与所述连接部的形状相匹配的第二非圆形孔，所述垫片设置在所述螺旋桨叶的与连接有所述桨叶螺母的一端相对的另一端上。
进一步地，所述导流罩呈半球形状，所述导流罩自所述安装基部向所述螺旋桨叶的方向半径渐缩。
进一步地，所述螺旋桨叶包括螺旋桨筒和多个叶片，多个叶片相间环绕于所述螺旋桨筒的外周。
进一步地，所述驱动电机内设置有填充体，所述填充体覆盖所述定子部分。
一种电动浮板，包括上述的全浸式水下推进器。
与现有技术对比，本方案提供的全浸式水下推进器，包括推进器壳体、螺旋桨叶、驱动电机、电机轴以及导流罩，各部件之间拆装方便，并增大了螺旋桨叶与水流相作用的有效面积，且能够平衡电机轴的轴线受力，使轴承具有较长的使用寿命。
与现有技术对比，本方案提供的电动浮板，采用上述的全浸式水下推进器，这样，能够有效提高螺旋桨叶与水流接触的有效面积，能够大大提高潜行速度，并具有较长的使用寿命。
图1是本方案实施例提供的全浸式水下推进器的立体示意图；
图2是本方案实施例提供的全浸式水下推进器的分解示意图一；
图3是本方案实施例提供的全浸式水下推进器的分解示意图二；
图4为图1中A-A面的剖视示意图。
为了使本方案所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本方案进行进一步详细说明。应当理解，所描述的实施例是本方案的一部分实施例，而不是全部的实施例。基于所描述的本方案的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本方案保护的范围。
为了使本领域的技术人员更好地理解本方案的技术方案，下面结合具体附图对本方案的实现进行详细的描述。
为叙述方便，下文中所称的“前”“后”“左”“右”“上”“下”与附图本身的前、后、左、右、上、下方向一致，但并不对本方案的结构起限定作用。
除非另作定义，此处使用的技术术语或者科学术语应当为本方案所属领域内具有一般技能的人士所理解的通常意义。本方案专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。
如图1至4所示，为本方案提供的一较佳实施例。
本实施例提供的全浸式水下推进器100，包括推进器壳体10、螺旋桨叶20、驱动电机30、电机轴40以及导流罩50，推进器壳体10包括一安装基部11，安装基部11具有相对的第一侧11a和第二侧11b，螺旋桨叶20位于该安装基部11第一侧11a的一侧；驱动电机30用于使螺旋桨叶20转动，驱动电机30包括定子部分31和转子部分32，定子部分31固定在该安装基部11的第二侧11b上；电机轴40具有相对的第一端40a和第二端40b，电机轴40的第一端40a与驱动电机30的定子部分31固定，第二端40b延伸至驱动电机30之外并与螺旋桨叶20连接；导流罩50用于将水流引导至螺旋桨叶20，导流罩50设置在安装基部11与螺旋桨叶20之间；电机轴40与螺旋桨叶20之间设置有止转结构，以限制二者相对转动。
上述的全浸式水下推进器100，包括推进器壳体10、螺旋桨叶20、驱动电机30、电机轴40以及导流罩50，各部件之间拆装方便，并增大了螺旋桨叶20与水流相作用的有效面积，且能够平衡电机轴40的轴线受力，使轴承具有较长的使用寿命。
参见图1至4，本实施例的全浸式水下推进器100，包括推进器壳体10、螺旋桨叶20、驱动电机30、电机轴40以及导流罩50。
参见图1至4，推进器壳体10包括安装基部11，在本实施例中，该推进器壳体10包括一大致呈圆筒状的外筒部12，外筒部12为两端开口的中空结构，该安装基部11位于外筒部12的内部大致中央位置，安装基部11的外壁与外筒部12的内壁之间形成有连接柱部13、14。连接柱部的数量为但不局限于三个，三个连接柱部在安装基部11的周向上等间距布置。安装基部11位将外筒部12的内部分成彼此连通的驱动腔（图示的左侧）和动力腔（图示的右侧），驱动电机30装配在该驱动腔内，导流罩50、螺旋桨叶20位于动力腔中，容易理解的是，借由连接柱部将安装基部11支撑在外筒部12内，相邻的连接柱部之间构成水的流动空间，螺旋桨叶20被驱动电机30驱动旋转后，使驱动腔与动力腔之间的水流流动，从而使全浸式水下推进器100游动。
具体地，安装基部11具有相对的第一侧11a（图示的右侧）和第二侧11b（图示的左侧），该安装基部11的第二侧11b表面开设有装配槽111，三个连接柱部13、14分为一个第一连接柱部13和两个第二连接柱部14，第一连接柱部13具有用于供电源线穿过的过线槽131，该过线槽131的一端延伸至装配槽111的内壁并与装配槽111连通。
参见图1至4，驱动电机30，通过电机轴40与螺旋桨叶20相连，以使螺旋桨叶20转动，驱动电机30包括定子部分31和转子部分32，定子部分31固定在第二侧11b上。在本实施例中，驱动电机30为外转无刷防水电机，其采用后出轴式结构（即电机轴40由驱动电机30的图示的右端伸出）。定子部分31包括穿设安装基部11设置的中空的支撑轴311、与安装基部11固定的圆形的定子基座312以及用于绕制绕组的铁芯构件313。该定子基座312安装在装配槽111内，定子基座312具有供支撑轴311穿过的轴装配孔314，支撑轴311与定子基座312螺纹连接固定，铁芯构件313套设在支撑轴311外侧并由该支撑轴311支撑，支撑轴311具有供电机轴40穿过的轴通孔315，电机轴40与支撑轴311设置有轴承316。转子部分32包括轴转子端盖321、圆筒状的转子外壳322、多个磁性元件323，以及用以将磁性元件323保持在转子外壳322上的圆环形的磁铁支架324。轴转子端盖321与电机轴40的第一端40a固定，转子外壳322套设在定子部分31的外周上，多个磁性元件323设置在转子外壳322的内侧，并沿转子外壳322的周向间隔设置。可以理解的是，定子部分31的安装过程为：将支撑轴311与定子基座312螺纹连接固定后，再将铁芯构件313套装在支撑轴311外侧，然后将定子基座312装入装配槽111内，通过螺钉将定子基座312与安装基部11连接固定。转子部分32的安装过程为：轴转子端盖321、转子外壳322、磁性元件323及磁铁支架324为彼此间连接固定的整体构件，轴转子端盖321与电机轴40之间可采用紧配合等一切现有的固定方式连接固定，将电机轴40插入支撑轴311，且伸出支撑轴311的第二端40b与桨叶螺母60锁附后，则转子部分32安装完毕。
作为进一步地优化，支撑轴311的外壁上凸设有用以限制支撑轴311与定子基座312相对移动的定位凸缘317，这样，能够对支撑轴311和定子基座312进行限位，方便安装。
作为进一步地优化，驱动电机30内设置有填充体（图未示），填充体覆盖定子部分31，该填充体为但不局限于环氧树脂，将环氧树脂涂覆在铁芯构件313上，至少覆盖该铁芯构件313、绕组，以实现定子部分31的防水效果。
参见图1至4，导流罩50，用于将水流引导至螺旋桨叶20，导流罩50设置在安装基部11与螺旋桨叶20之间，在本实施例中，导流罩50呈半球形状，导流罩50自安装基部11向螺旋桨叶20的方向半径渐缩。导流罩50、安装基部11、定子基座312通过螺钉顺序连接固定，定子基座312上开设有多个第一固定孔318，多个第一固定孔318绕设在轴装配孔314的外周；推进器壳体10的安装基部11上开设有与第一固定孔318对应的多个第二固定孔112，导流罩50上开设有开设有与第二固定孔112对应的多个第三固定孔51。容易理解的是，采用螺钉将导流罩50、定子基座312固定在安装基部11上，从而对定子部分31进行固定，拧松螺钉即可将导流罩50和定子部分31拆离，安装和拆卸方便。此外，导流罩50的表面为光滑的弧形面，以便于引导水流在其表面的流动，可使水流平滑地过渡到螺旋桨叶20上，这样，能够有效地增大螺旋桨叶20的排水的有效面积，提高推进速度。
作为进一步地优化，导流罩50的边缘形成有定位缺口52，该安装基部11的第一侧11a表面形成有与定位缺口52对应的定位凸块113，这样，方便导流罩50的安装。
参见图1至4，螺旋桨叶20，位于安装基部11第一侧11a的一侧，其包括螺旋桨筒21和多个叶片22，多个叶片22相间环绕于螺旋桨筒21的外周。在本实施例中，每个叶片22均从螺旋桨筒21的内端（图示的左端）至外端（图示的右端）呈螺旋状的设置，导流罩50的一端的半径与电机的外径基本相同，另一端的半径与螺旋桨筒21的外径基本相同。
参见图1至4，电机轴40，其具有相对的第一端40a和第二端40b，第一端40a与驱动电机30的定子部分31固定，第二端40b延伸至驱动电机30之外并与螺旋桨叶20连接，电机轴40与螺旋桨叶20之间设置有止转结构，以限制二者相对转动。在本实施例中，止转结构包括开设于螺旋桨叶20的螺旋桨筒21上的第一非圆形孔211以及设置在电机轴40上且与第一非圆形孔211的形状相匹配的连接部41；螺旋桨叶20通过桨叶螺母60固定在电机轴40上，连接部41的外壁上形成有螺纹部42，桨叶螺母60的内壁上形成有与螺纹部42螺纹配合的螺纹配合部61。这样，当桨叶螺母60拧紧后，螺旋桨叶20与电机轴40则连接固定，当桨叶螺母60拆下就可以将驱动电机30转子部分32拆出来，尤其是在混入泥沙后可以轻松的拆卸清洗，方便清洗维修。
具体地，电机轴40的长度优选109mm，其连接部41的长度优选23mm，该第一非圆形孔211可以呈“D”形、腰形等，以实现防止螺旋桨叶20和电机轴40的发生相对转动的设计目的。值得一提的是，电机轴40通过其第一端40a与转子部分32的轴转子端盖321连接固定，第二端40b经定子部分31的支撑轴311穿过驱动电机30之外，螺旋桨叶20保持在该第二端40b的端部，也就说是，将驱动电机30的出轴端加长，电机轴40的两端在分别连接转子部分32和螺旋浆叶后，可有效平衡电机轴40的两端的轴向受力，即平衡了轴承的轴向载荷，增长轴承使用时间。
参见图1至4，在本实施例中，连接部41上套设有垫片70，垫片70具有与连接部41的形状相匹配的第二非圆形孔71，垫片70设置在螺旋桨叶20的与连接有桨叶螺母60的一端相对的另一端上。垫片70的存在可以防止螺旋桨与驱动电机30的直接摩擦，同时提供限位作用，这样设计可使螺旋桨与驱动电机30之间有一个合适的间隙，同时又不会因为桨叶螺母60锁紧而挤压驱动电机30。
本实施例提供的电动浮板，其包括上述的全浸式水下推进器100，这样，能够有效提高螺旋桨叶20与水流接触的有效面积，能够大大提高潜行速度，并具有较长的使用寿命。
以上所述仅为本方案的较佳实施例而已，并不用以限制本方案，凡在本方案的精神和原则之内所作的任何修改、等同替换或改进等，均应包含在本方案的保护范围之内。
Claims (10)
- 一种全浸式水下推进器，其特征在于，包括：推进器壳体，其包括一安装基部，所述安装基部具有相对的第一侧和第二侧；螺旋桨叶，位于所述第一侧的一侧；驱动电机，用于使所述螺旋桨叶转动，所述驱动电机包括定子部分和转子部分，所述定子部分固定在所述第二侧上；电机轴，其具有相对的第一端和第二端，所述第一端与所述驱动电机的定子部分固定，所述第二端延伸至所述驱动电机之外并与所述螺旋桨叶连接；以及导流罩，用于将水流引导至所述螺旋桨叶，所述导流罩设置在所述安装基部与所述螺旋桨叶之间；所述电机轴与所述螺旋桨叶之间设置有止转结构，以限制二者相对转动。
- 根据权利要求1所述的全浸式水下推进器，其特征在于，所述定子部分包括穿设所述安装基部设置的中空的支撑轴、与所述安装基部固定的圆形的定子基座以及用于绕制绕组的铁芯构件；所述定子基座具有供所述支撑轴穿过的轴装配孔，所述支撑轴与所述定子基座螺纹连接固定；所述铁芯构件套设在所述支撑轴外侧，所述支撑轴具有供所述电机轴穿过的轴通孔，所述电机轴与所述支撑轴设置有轴承；所述转子部分包括转子端盖、圆筒状的转子外壳、多个磁性元件，以及用以将所述磁性元件保持在所述转子外壳上的圆环形的磁铁支架；所述转子端盖与所述电机轴的第一端固定，所述转子外壳套设在所述定子部分的外周上，多个所述磁性元件设置在所述转子外壳的内侧，并沿转子外壳的周向间隔设置。
- 根据权利要求2所述的全浸式水下推进器，其特征在于，所述支撑轴的外壁上凸设有用以限制所述支撑轴与所述定子基座相对移动的定位凸缘。
- 根据权利要求2所述的全浸式水下推进器，其特征在于，所述定子基座上开设有多个第一固定孔，多个所述第一固定孔绕设在所述轴装配孔的外周；所述推进器壳体的安装基部上开设有与所述第一固定孔对应的多个第二固定孔，所述导流罩上开设有开设有与所述第二固定孔对应的多个第三固定孔。
- 根据权利要求1所述的全浸式水下推进器，其特征在于，所述止转结构包括开设于所述螺旋桨叶上的第一非圆形孔以及设置在所述电机轴上且与所述第一非圆形孔的形状相匹配的连接部；所述螺旋桨叶通过桨叶螺母固定在所述电机轴上，所述连接部的外壁上形成有螺纹部，所述桨叶螺母的内壁上形成有与所述螺纹部螺纹配合的螺纹配合部。
- 根据权利要求5所述的全浸式水下推进器，其特征在于，所述连接部上套设有垫片，所述垫片具有与所述连接部的形状相匹配的第二非圆形孔，所述垫片设置在所述螺旋桨叶的与连接有所述桨叶螺母的一端相对的另一端上。
- 根据权利要求1所述的全浸式水下推进器，其特征在于，所述导流罩呈半球形状，所述导流罩自所述安装基部向所述螺旋桨叶的方向半径渐缩。
- 根据权利要求1所述的全浸式水下推进器，其特征在于，所述螺旋桨叶包括螺旋桨筒和多个叶片，多个叶片相间环绕于所述螺旋桨筒的外周。
- 根据权利要求1所述的全浸式水下推进器，其特征在于，所述驱动电机内设置有填充体，所述填充体覆盖所述定子部分。
- 一种电动浮板，其特征在于，包括权利要求1至9任一项所述的全浸式水下推进器。
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| CN112874747A (zh) * | 2021-01-19 | 2021-06-01 | 武汉波依迈科技有限公司 | 一种轮缘泵喷推进器及采用该推进器的行进工具 |
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| CN111699611A (zh) | 2020-09-22 |
| CN111699611B (zh) | 2023-03-14 |
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