CN220884760U

CN220884760U - Electric propulsion device of water-craft

Info

Publication number: CN220884760U
Application number: CN202322614410.2U
Authority: CN
Inventors: 陈亦燕; 陈沛华; 陈生
Original assignee: Zhaoqing City Kunpeng Power Co ltd
Current assignee: Zhaoqing City Kunpeng Power Co ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-05-03
Anticipated expiration: 2033-09-25

Abstract

The utility model discloses an electric propulsion device of a watercraft, which comprises: a housing, an inner cavity of the housing being provided with an output shaft extending from an interior to an exterior of the housing; the propeller is provided with a shaft sleeve and blades arranged on the radial outer surface of the shaft sleeve, the shaft sleeve is sleeved on the output shaft, a transition cylinder is arranged between the shell and the blades, and the diameter of the transition cylinder gradually decreases from the shell to the direction of the blades and is internally accommodated in the output shaft. The utility model can better drive the water transport tool to run, greatly reduce the resistance to water, and simultaneously avoid the winding of aquatic weeds, weeds and sundries on the output shaft.

Description

Electric propulsion device of water-craft

Technical Field

The utility model relates to the technical field of propellers, in particular to an electric propulsion device of a water-craft.

Background

In the prior art, a ship propeller is provided, and the patent number is CN107628212A, which comprises a propeller and an underwater gear box driving the propeller to rotate completely, specifically, an output shaft of the underwater gear box is connected with the propeller, so that the ship and even a raft and other water transportation tools are driven to run.

However, there are weeds or floating weeds in some river courses, the existing ship is easy to wind the weeds on the output shafts of the propellers when running in the river courses, too much weed winding can cause the propellers to be unable to rotate, and even the power source is damaged.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the electric propulsion device of the water-craft can better drive the water-craft to run, greatly reduces the resistance to water, and simultaneously avoids the winding of water plants, weeds and sundries around the output shaft.

An electric propulsion device for a watercraft according to an embodiment of the first aspect of the utility model comprises: a housing, an inner cavity of the housing being provided with an output shaft extending from an interior to an exterior of the housing; the propeller is provided with a shaft sleeve and blades arranged on the radial outer surface of the shaft sleeve, the shaft sleeve is sleeved on the output shaft, a transition cylinder is arranged between the shell and the blades, and the diameter of the transition cylinder gradually decreases from the shell to the direction of the blades and is internally accommodated in the output shaft.

According to some embodiments of the utility model, the housing has an inner cavity with a stator and a rotor for generating an output rotational power, the output shaft being arranged to the rotor.

According to some embodiments of the utility model, the stator is fixed by clamping the first clamping piece and the second clamping piece, the first clamping piece is connected with the second clamping piece through a screw rod, and the screw rod penetrates through the stator.

According to some embodiments of the utility model, the transition barrel has a first barrel portion, the connecting barrel has a barrel body, and the first barrel portion clamps the housing with the barrel body.

According to some embodiments of the utility model, the diameter of the barrel tapers in a direction away from the housing.

According to some embodiments of the utility model, the outer surface of the shaft sleeve is provided with an annular avoidance groove, the transition barrel is provided with a second barrel part, and the avoidance groove accommodates the end part of the second barrel part.

According to some embodiments of the utility model, the output shaft is provided with a first sealing ring, the inside of the second cylinder part is provided with an annular seat, and the inner surface of the annular seat is matched with the outer surface of the first sealing ring.

According to some embodiments of the utility model, a spring is arranged between the shaft sleeve and the end part of the first sealing ring, a locking bolt is arranged on one side of the shaft sleeve away from the spring, and the locking bolt is arranged in a screwing mode with the output shaft.

According to some embodiments of the utility model, the output shaft comprises a housing, a transition barrel and a connecting barrel, wherein the connecting barrel is positioned at one end of the housing far away from the transition barrel, the connecting barrel is provided with a first supporting seat, a second supporting seat is arranged inside the transition barrel, and the first supporting seat and the second supporting seat are used for supporting the output shaft.

According to some embodiments of the utility model, the first and second support seats are each connected to the output shaft by bearings.

The electric propulsion device of the water-craft has at least the following beneficial effects:

According to the utility model, the transition barrel is arranged, so that the propeller rotates in the running process of the water-borne tool, water flows through the surfaces of the shell and the transition barrel in sequence, the diameter of the transition barrel gradually tapers from the shell to the direction of the blades, so that the shell, the transition barrel and the shaft sleeve form a streamline structure, the joint of the shell, the transition barrel and the shaft sleeve is smooth, the water flow is facilitated to better flow, the resistance of the propeller to water is greatly reduced, the propeller better pushes water to advance, and meanwhile, the output shaft is accommodated in the transition barrel, so that water grass, weeds and sundries in a river channel can slide to the blades of the propeller along the outer surface of the transition barrel, therefore, the water grass, the weeds and the sundries can be broken by the propeller, the water grass, the weeds and the sundries are prevented from being wound on the output shaft, the interference capability of the water grass is improved, and the effect of protecting the propeller is achieved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of an electric propulsion device of a watercraft according to an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional view of an electric propulsion device of the watercraft shown in fig. 1.

Reference numerals: 100-shell, 110-output shaft, 120-propeller, 130-shaft sleeve, 140-blade, 150-transition cylinder, 160-stator, 170-rotor, 180-connecting cylinder, 190-first clamping piece, 200-second clamping piece, 210-first cylinder part, 220-avoidance groove, 230-second cylinder part, 240-first sealing ring, 250-second sealing ring, 260-cylinder body, 270-first supporting seat, 280-second supporting seat, 290-spring, 300-locking bolt, 310-screw rod and 320-bearing.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

An electric propulsion device of a watercraft according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an electric propulsion device of a watercraft according to an embodiment of the present utility model includes a housing 100 and a propeller 120, an inner cavity of the housing 100 is provided with an output shaft 110, and the output shaft 110 extends from the inside to the outside of the housing 100; the propeller 120 has a hub 130, and blades 140 disposed on the radially outer surface of the hub 130, the hub 130 is sleeved on the output shaft 110, a transition cylinder 150 is disposed between the housing 100 and the blades 140, and the diameter of the transition cylinder 150 tapers from the housing 100 to the direction of the blades 140 and accommodates the output shaft 110.

The housing 100, the transition barrel 150 and the propeller 120 cooperate to form a streamlined design, which greatly reduces the resistance of the pushing device and improves the ability to prevent weed interference.

In some embodiments of the present utility model, the inner cavity of the housing 100 has a stator 160 and a rotor 170 for generating output rotational power, and the output shaft 110 is disposed at the rotor 170.

Thus, the stator 160 and the rotor 170 generate rotational power so that the output shaft 110 can rotate the propeller 120.

Meanwhile, the stator 160 and the rotor 170 are located inside the housing 100, so that the propeller 120 can be directly driven by the output shaft 110, and the motor is not required to be externally arranged above the water surface, so that direct driving is realized.

Further, the rotational speeds of the stator 160 and the rotor 170 may be changed without using a reduction gearbox to change the rotational speeds, thereby changing the rotational speed of the propeller 120 to realize the propeller speed change function.

In some embodiments of the present utility model, the connecting tube 180 is further included, the connecting tube 180 is located at an end of the housing 100 away from the transition tube 150, the connecting tube 180 is provided with a first clamping member 190, the transition tube 150 is provided with a second clamping member 200, the first clamping member 190 and the second clamping member 200 clamp the stator 160, the first clamping member 190 and the second clamping member 200 are connected through a screw 310, and the screw 310 penetrates through the stator 160.

Thus, the stator 160 is clamped by the first clamping member 190 and the second clamping member 200, and the screw 310 can lock the connecting cylinder 180 and the transition cylinder 150, so that the connecting cylinder 180, the transition cylinder 150 and the stator 160 are fixedly connected.

Meanwhile, the screw 310 penetrates the stator 160, so that the screw 310 does not need to be exposed to the outside of the housing 100, the resistance of the propulsion device to water flow can be reduced, and rust of the screw 310 is avoided.

In some embodiments of the present utility model, the transition piece 150 has a first barrel portion 210, the connecting piece 180 has a barrel 260, and the first barrel portion 210 and the barrel 260 sandwich the stationary housing 100.

It should be noted that, the second clamping member 200 is connected to the first barrel 210 by a bolt, so that the assembly and the disassembly are convenient.

Thus, the whole of the connection of the transition cylinder 150, the housing, and the connecting cylinder 180 is ensured to be cylindrical, and the resistance applied to the surface is reduced.

In some embodiments of the utility model, the diameter of the barrel 260 tapers in a direction away from the housing 100, thereby greatly reducing the resistance of the propulsion device.

In some embodiments of the present utility model, the outer surface of the sleeve 130 is provided with the annular avoidance groove 220, the transition barrel 150 has the second barrel portion 230, and the avoidance groove 220 accommodates the end of the second barrel portion 230, so that the drop between the junction of the sleeve 130 and the second barrel portion 230 is reduced, the junction is smooth, the water flow is facilitated, and the water weed winding is avoided.

In some embodiments of the present utility model, the output shaft 110 is sleeved with the first sealing ring 240, and the second cylinder 230 is provided with an annular seat inside, and the inner surface of the annular seat is matched with the outer surface of the first sealing ring 240, so that water inflow inside the housing 100 can be avoided, and the tightness of the housing 100 can be improved.

In some embodiments of the present utility model, a spring 290 is disposed between the sleeve 130 and an end of the first seal ring 240, a locking bolt 300 is disposed on a side of the sleeve 130 away from the spring 290, and the locking bolt 300 is rotatably disposed on the output shaft 110, so that the sleeve 130 can compress the spring 290, so that the spring 290 compresses the first seal ring 240, thereby preventing the first seal ring 240 from being released.

Specifically, the output shaft 110 is further sleeved with the second seal ring 250, thereby further improving the sealability of the housing 100.

In some embodiments of the present utility model, the connecting cylinder 180 is further included, the connecting cylinder 180 is located at an end of the housing 100 away from the transition cylinder 150, the connecting cylinder 180 has a first support seat 270, and the transition cylinder 150 has a second support seat 280 therein, and the first support seat 270 and the second support seat 280 are used for supporting the output shaft 110.

Specifically, the first support 270 and the second support 280 are both connected to the output shaft 110 through the bearing 320, which is beneficial to reduce friction experienced by the first support 270 and the second support 280.

Thus, the present embodiment has the following effects:

According to the utility model, the transition barrel 150 is arranged, so that the propeller 120 rotates in the running process of the water conveyance tool driven by the propulsion device, so that water flows through the surfaces of the connection barrel 180, the shell 100 and the transition barrel 150 in sequence, the diameters of the transition barrel 150 gradually decrease from the shell 100 to the direction of the blades 140, the shell 100, the transition barrel 150 and the shaft sleeve 130 form a streamline structure, the connection part of the three is smooth, the water flow is better facilitated, the resistance of the propulsion device to water is greatly reduced, the propeller 120 better pushes the water to advance, meanwhile, the output shaft 110 is accommodated in the transition barrel 150, and the aquatic weed, the weed and the sundries in the river channel can slide to the blades 140 of the propeller 120 along the outer surface of the transition barrel 150, so that the aquatic weed, the weed and the sundries can be broken by the propeller 120, the aquatic weed, the weed and the sundries are prevented from winding on the output shaft 110, the waterproof weed interference capability is improved, and the effect of protecting the propulsion device is achieved.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. An electric propulsion device for a watercraft, comprising:

A housing (100), an inner cavity of the housing (100) being provided with an output shaft (110), the output shaft (110) extending from an interior to an exterior of the housing (100);

screw (120), screw (120) have axle sleeve (130), set up in blade (140) of axle sleeve (130) radial surface, axle sleeve (130) suit in output shaft (110), casing (100) with be provided with transition section of thick bamboo (150) between blade (140), the diameter of transition section of thick bamboo (150) is followed casing (100) toward the direction taper of blade (140) and inside holding output shaft (110).

2. The electric propulsion device of a watercraft according to claim 1, wherein the inner cavity of the housing (100) has a stator (160) and a rotor (170) for generating output rotational power, the output shaft (110) being arranged at the rotor (170).

3. The electric propulsion device of a watercraft according to claim 2, further comprising a connecting cylinder (180), wherein the connecting cylinder (180) is located at one end of the housing (100) away from the transition cylinder (150), the connecting cylinder (180) is provided with a first clamping member (190), the transition cylinder (150) is provided with a second clamping member (200), the first clamping member (190) and the second clamping member (200) clamp and fix the stator (160), the first clamping member (190) and the second clamping member (200) are connected by a screw (310), and the screw (310) penetrates through the stator (160).

4. A watercraft electric propulsion device according to claim 3 wherein the transition barrel (150) has a first barrel portion (210), the connecting barrel (180) has a barrel (260), and the first barrel portion (210) and the barrel (260) clamp the housing (100).

5. An electric propulsion device of a watercraft according to claim 4, wherein the diameter of the barrel (260) tapers in a direction away from the housing (100).

6. The electric propulsion device of a watercraft according to claim 1, wherein the outer surface of the sleeve (130) is provided with an annular avoidance groove (220), the transition barrel (150) has a second barrel portion (230), and the avoidance groove (220) accommodates an end portion of the second barrel portion (230).

7. The electric propulsion device of a watercraft according to claim 6, wherein the output shaft (110) is sleeved with a first sealing ring (240), the inside of the second barrel (230) is provided with an annular seat, and the inner surface of the annular seat is matched with the outer surface of the first sealing ring (240).

8. The electric propulsion device of a watercraft according to claim 7, wherein a spring (290) is arranged between the sleeve (130) and the end of the first sealing ring (240), a locking bolt (300) is arranged on one side of the sleeve (130) away from the spring (290), and the locking bolt (300) is arranged in a screwing way with the output shaft (110).

9. The electric propulsion device of a watercraft according to claim 1, further comprising a connection barrel (180), the connection barrel (180) being located at an end of the housing (100) remote from the transition barrel (150), the connection barrel (180) having a first support seat (270), the transition barrel (150) having a second support seat (280) inside, the first support seat (270) and the second support seat (280) being adapted to support the output shaft (110).

10. The electric propulsion device of a watercraft according to claim 9, wherein the first support (270) and the second support (280) are each connected to the output shaft (110) by means of bearings (320).