CN216468402U - Underwater propeller and water carrying device - Google Patents

Abstract

The utility model relates to an underwater propulsor and delivery device on water, underwater propulsor include propeller main part and screw, and the propeller main part includes: the power output shaft, have shaft seal cabin and end cover used for closing the opening of the opening, there are shaft seals in the shaft seal cabin, the power output shaft is worn and set up in the shaft seal, the carry-out terminal of the power output shaft runs through the end cover and stretches out to the outside of shaft seal cabin; the propeller is connected to the output shaft, and a first interval is formed between the propeller and the end cover along the axial direction of the output shaft; the one side that the end cover faced the screw is equipped with antiwind support, and antiwind support keeps off to be established at first spaced radial inboard to can avoid debris to get into between screw and the end cover to a certain extent.

Description

Underwater propeller and water carrying device

Technical Field

The utility model relates to a delivery equipment technical field on water especially relates to an underwater propulsor and delivery device on water.

Background

An underwater propeller is a propulsion device driven by electricity, and generally includes a propeller body and a propeller rotatably connected to the propeller body. The motor in the propeller main body drives the propeller to rotate, and the underwater propeller is pushed to advance. However, as impurities such as waterweeds and fishing nets may exist in waters such as lake water and seawater, the propeller is very easy to adsorb the impurities in the operation process, so that the propeller is blocked, the motor is blocked, and the underwater propeller cannot continuously work, and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides an underwater propeller and a water vehicle.

In a first aspect, the present disclosure provides an underwater propulsor comprising a propulsor body and a propeller, the propulsor body comprising: the power output shaft, have shaft seal cabin and end cover used for closing the opening of the opening, there are shaft seals in the shaft seal cabin, the power output shaft is worn and set up in the shaft seal, the carry-out terminal of the power output shaft runs through the end cover and stretches out to the outside of shaft seal cabin; the propeller is connected to the output shaft, and a first interval is formed between the propeller and the end cover along the axial direction of the output shaft;

the one side that the end cover faced the screw is equipped with antiwind support, and antiwind support keeps off to be established at first spaced radial inboard.

Optionally, the anti-winding support is an annular member, and the annular member is arranged around the circumference of the power output shaft; and/or the anti-winding bracket is a cover-shaped piece.

Optionally, the propeller includes a hub cover and a mounting portion disposed inside the hub cover, the mounting portion is connected to the power output shaft, and a first gap is formed between an end portion of the hub cover facing the shaft seal compartment and the end cover.

Optionally, a second gap is formed between the radially inner side wall of the hub cap and the radially outer surface of the power output shaft, and the anti-wind bracket extends into the second gap along the axial direction of the power output shaft.

Optionally, a through hole for the power output shaft to extend out is formed in the end cover, a third interval is formed between the hole wall of the through hole and the power output shaft, and part of the structure of the anti-winding support is suspended and inserted in the second interval.

Optionally, the underwater propeller further comprises a controller for controlling the working state of the underwater propeller, the propeller main body further comprises a driving piece and an alarm, the driving piece and the alarm are electrically connected with the controller, an output shaft of the driving piece forms a power output shaft, and the controller is used for controlling the alarm to give an alarm when the rotating speed of the power output shaft is smaller than a preset threshold value.

Optionally, the end part of the anti-winding bracket connected with the end cover is provided with a reinforcing rib; and/or

The end part of the anti-winding support connected with the end cover is provided with a chamfer angle structure.

Optionally, the end cap is fixed to the shaft seal compartment by a fastener, and the fixing position of the fastener is located radially outside the anti-wind bracket.

Optionally, the propeller protection cover is further included, a connecting rod is arranged on the propeller protection cover, and the connecting rod is further connected with the propeller main body so as to cover the propeller protection cover on the outer side of the propeller.

Optionally, the connecting rod includes the head rod, and the head rod is along power output shaft's radial extension, and the screw includes the propeller hub cover and locates the paddle of propeller hub cover periphery, and the head rod is located the one side of the orientation propeller main part of paddle.

In a second aspect, the present disclosure provides a water vehicle comprising an underwater propeller as described above.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

according to the underwater propeller and the water carrying device, the shaft seal cabin is sealed by the end cover arranged at the opening of the shaft seal cabin, and the power output shaft can penetrate out of the shaft seal cabin from the end cover, so that the shaft seal is protected by the end cover, and sundries are prevented from entering the shaft seal to cause the failure of the shaft seal; in addition, still be equipped with the antiwind support on the end cover, when debris appear near screw and end cover and want to get into the first interval between screw and the end cover, can be sheltered from and can't get into by the antiwind support, can avoid debris to get into between screw and the end cover to a certain extent, improve underwater propulsor's reliability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a partial perspective view of an underwater propulsion unit according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of an angle of an underwater propulsion unit according to an embodiment of the present disclosure;

FIG. 3a is another schematic cross-sectional view of an underwater vehicle according to an embodiment of the present disclosure;

FIG. 3b is a partial enlarged view of FIG. 3a at A;

FIG. 4a is a schematic cross-sectional view of another angle of an underwater propulsion unit according to an embodiment of the present disclosure;

fig. 4B is a partial enlarged view of fig. 4a at B.

Wherein, 100, the propeller; 10. a propeller body; 20. a power take-off shaft; 21. a drive member; 30. shaft sealing; 31. shaft sealing; 40. an end cap; 41. a through hole; 50. an anti-wind bracket; 51. a chamfering structure; 60. a propeller protective cover; 61. a connecting rod; 61', a first connecting rod; 71. a first interval; 72. a second interval; 73. a third interval; 80. a propeller; 81. a hub cap; 82. an installation part; 83. a paddle; 90. a fastener.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

In the related art underwater propeller, a propeller is rotatably coupled to an underwater propeller body, and the propeller body are generally spaced apart from each other to prevent interference therebetween. However, during operation of the propeller, nearby debris is easily absorbed into the gap, which results in propeller blockage and motor stall.

Based on this, this embodiment provides an underwater propulsor and delivery device on water, through setting up antiwind support, can avoid between debris get into screw and the propeller main part to a certain extent to improve underwater propulsor's reliability. This is illustrated in detail by the following specific examples:

examples

Fig. 1 is a partial perspective structure schematic view of an underwater thruster according to an embodiment of the present disclosure, and fig. 2 is a cross-sectional structure schematic view of an angle of the underwater thruster according to an embodiment of the present disclosure.

Referring to fig. 1 and 2, the present embodiment provides an underwater propeller 100, which operates under water, for providing propulsion to a water vehicle, such as a standing paddle board, a surfboard, and the like.

For example, the underwater propeller 100 of the present embodiment may be applied to SUP (Stand-up paddling) standing paddle motion, and the underwater propeller 100 may be disposed at the bottom of the standing paddle to push the standing paddle to slide. It will be appreciated that the water vehicle is not limited to a standing paddle, but may be other types of vehicles.

The underwater thruster 100 of the embodiment of the present disclosure includes a thruster main body 10 and a propeller 80, the thruster main body 10 including: the power output shaft 20, the shaft seal cabin 30 with an opening and the end cover 40 for closing the opening, the shaft seal 31 is arranged in the shaft seal cabin 30, the power output shaft 20 is arranged in the shaft seal 31 in a penetrating way, and the output end of the power output shaft 20 penetrates through the end cover 40 and extends out of the shaft seal cabin 30; the propeller 80 is connected to the power output shaft 20, and the propeller 80 and the end cover 40 have a first interval 71 along the axial direction of the power output shaft 20; the end cover 40 is provided with an anti-winding bracket 50 on a surface facing the propeller 80, and the anti-winding bracket 50 is arranged radially inward of the first gap 71.

In the above scheme, the end cover 40 is arranged at the opening of the shaft seal cabin 30, the power output shaft 20 can penetrate out of the shaft seal cabin 30 from the end cover 40, and the end cover 40 can be used for protecting the shaft seal 31 to prevent sundries from entering the shaft seal 31 to cause the shaft seal to lose efficacy; in addition, the end cover 40 is further provided with an anti-winding bracket 50, so that when sundries appear near the propeller 80 and the end cover 40 and want to enter the first space 71, the sundries are shielded by the anti-winding bracket 50 and cannot enter, and the sundries can be prevented from entering between the propeller 80 and the end cover 40 to a certain degree. It should be noted that the end cap 40 and the anti-wind bracket 50 may be integrally formed or may be separately formed.

Wherein the propeller 80 is in a rotating state when in use, the end cover 40 is in a stationary state when in use, and in the actual layout process, the end cover 40 and the propeller 80 are arranged oppositely, so that a certain interval is kept between the propeller 80 and the end cover 40 in the axial direction of the power output shaft 20, so as to prevent the end cover 40 from interfering with the operation of the propeller 80. Specifically, the end of the hub cover 81 facing the shaft seal compartment 30 is disposed opposite to the end cover 40, and forms a first gap 71 along the axial direction of the power output shaft 20.

It is understood that the anti-winding bracket 50 is arranged radially inside the first gap 71, which means that the anti-winding bracket 50 is located inside the first gap 71 in the radial direction of the power output shaft 20, in other words, the distance between the anti-winding bracket 50 and the power output shaft 20 is smaller than the distance between the first gap 71 and the power output shaft 20.

As for the anti-wind bracket 50, the anti-wind bracket 50 may be embodied as a ring-shaped member disposed around the circumference of the power output shaft 20. This allows a good shielding of the first gap 71 over the entire circumference of the power take-off shaft 20. The anti-wind-up bracket 50 may be continuous along the circumferential direction of the power output shaft 20.

Illustratively, the anti-wind bracket 50 may be a hood. Or, in some examples, the anti-winding bracket 50 may also be a net structure to block small sundries such as fishing lines, aquatic plants, and the like.

The propeller 80 may include a hub cover 81 and a mounting portion 82 provided inside the hub cover 81, the hub cover 81 may be formed in a sleeve shape, and the mounting portion 82 may be connected to the power output shaft 20, in which case, the second gap 72 is provided between the inner surface of the hub cover 81 and the outer surface of the power output shaft 20. The anti-wind bracket 50 may extend into the second space 72 in the axial direction of the power output shaft 20. Further, the propeller 80 may further include blades 83, and the blades 83 are formed on an outer side wall of the hub cover 81.

Fig. 3a is another schematic structural view in angular section of the underwater propulsion unit 100 according to the embodiment of the disclosure, and fig. 3b is a partially enlarged view of a portion a of fig. 3 a.

Referring to fig. 3a and 3b, the anti-wind bracket 50 is a member protruding from the surface of the end cap 40, and a reinforcing rib (not shown) may be optionally provided at an end portion of the anti-wind bracket 50 connected to the end cap 40 in order to increase the connection strength between the anti-wind bracket 50 and the end cap 40. Alternatively, the anti-wind bracket 50 may be provided with a chamfered structure 51 at an end connected to the end cap 40. The chamfered structure 51 may enhance the connection strength between the anti-wind bracket 50 and the end cap 40, and prevent fatigue fracture of the anti-wind bracket 50.

In the embodiment of the present disclosure, the anti-wind bracket 50 and the end cover 40 are detachably disposed with respect to the propeller main body 10, so that the end cover 40 and the bracket 50 can be detached to facilitate cleaning in case of a wind.

In particular implementation, referring to fig. 3b, the end cap 40 may be fixed to the shaft capsule 30 by a fastener 90, and the fixing position of the fastener 90 is located radially outside the anti-wind bracket 50.

Here, the fixing position of the fastening member 90 located radially outside the anti-wind bracket 50 means that the fastening member 90 is located radially outside the anti-wind bracket in the radial direction of the power output shaft 20, i.e., the distance between the fastening member 90 and the central axis of the power output shaft 20 is greater than the distance between the anti-wind bracket 50 and the central axis of the power output shaft 20. This arrangement facilitates assembly of the fastener 90.

Fig. 4a is a schematic cross-sectional view of another angle of the underwater propeller according to the embodiment of the present disclosure, and fig. 4B is a partially enlarged view of a portion B of fig. 4 a.

It will be appreciated that the underwater vehicle may also generally include a controller for controlling the operating conditions of the underwater vehicle, and that the vehicle body 10 further includes a drive member 21 and an alarm (not shown) electrically connected to the controller, the output shaft of the drive member forming the power output shaft 20; the controller is used for controlling the alarm to give an alarm when the rotating speed of the power output shaft 20 is smaller than a preset threshold value.

It should be noted that the end cover 40 is provided with a through hole 41 for the power output shaft 20 to extend out, a third interval 73 is provided between the hole wall of the through hole 41 and the power output shaft 20, when the third interval 73 is blocked, the rotating speed of the power output shaft 20 is also smaller than a preset threshold value, and the controller also determines that the driving member is locked, so that the alarm is alarmed, and an operator can handle the situation in time. Here, the driving member 21 may be a motor.

In the propeller in the prior art, if the propeller 80 with a relatively light degree is wound, the controller of the propeller cannot report abnormity, the damping of the propeller 80 is increased, the motor is overloaded, the motor can be burnt out seriously, and the damage which cannot be compensated is caused. In order to improve the sensitivity of the controller alarm, the controller can determine the degree of the blockage by controlling the size of the third interval 73, so that the controller can alarm the motor blockage. Specifically, the radial dimension of the third gap 73 may be set as small as possible in principle, so long as the end cover 40 does not scrape and interfere with the rotation of the power output shaft 20 when the underwater propeller 100 is in normal operation. The radial dimension of the third interval 73 may be calculated from a dimension chain.

In addition, as mentioned above, in the second space 72 formed between the inner side wall of the hub cover 81 and the power output shaft 20, part of the structure of the anti-wind bracket 50 is inserted in the second space 72 in a suspended manner, that is, the inner side wall of the anti-wind bracket 50 has a space from the radial outer surface of the power output shaft 20, and the outer side wall of the anti-wind bracket 50 has a space from the inner side wall of the hub cover 81, and these two spaces are connected.

In addition, a propeller protection cover 60 may be provided outside the propeller 80 as a primary protection device to prevent a large winding object, for example, a fishing net, from being wound. For example, referring to fig. 1, a connection rod 61 may be provided on the ring-shaped propeller protection cover 60, and the connection rod 61 is further connected to the propeller body 10 to cover the propeller protection cover 60 outside the propeller 80. Illustratively, the propeller protection cover 60 may be formed as a hood-like member, and the propeller 80 as a whole may be located within a hood-like space formed by the hood-like member.

Here the connecting rod 61 and the propeller guard 60 cooperate to prevent the entanglement of foreign materials around the propeller 80.

In addition, the number of the connecting rods 61 may be multiple, and part of the connecting rods 61 may extend in the radial direction of the power output shaft 20, specifically, the connecting rods 61 may include a first connecting rod 61', the first connecting rod 61' extends in the radial direction of the power output shaft 20, and the first connecting rod 61' may be located on one side of the blades 83 facing the propeller body 10, and the blocking of the propeller protective cover is added, so that large impurities may be prevented from entering between the propeller 80 and the propeller body 10, and a primary protection is formed.

According to the underwater propeller 100 provided by the embodiment, the end cover 40 is arranged at the opening of the shaft seal cabin 30, the power output shaft 20 can penetrate out of the shaft seal cabin 30 from the end cover 40, and the end cover 40 protects the shaft seal to prevent sundries from entering the shaft seal; in addition, the end cover 40 is further provided with an anti-winding bracket 50, so that when sundries appear near the propeller 80 and the end cover 40 and want to enter the first space 71, the sundries are shielded by the anti-winding bracket 50 and cannot enter, and the sundries can be prevented from entering between the propeller 80 and the end cover 40 to a certain degree.

In the underwater vehicle 100 of the present embodiment, the propeller protection cover 60 is provided to perform the functions of preventing collision and intercepting large foreign objects, thereby forming primary protection.

Referring to fig. 2 and 4a, the smaller distance between the anti-wind bracket 50 and the hub cover 81, and the smaller distance between the anti-wind bracket 50 and the power output shaft 20, and the third distance 73 with a reasonable size between the through hole 41 and the power output shaft 20 may block foreign matters such as fine fishing lines, waterweeds, and impurities, thereby forming a secondary protection.

Further, the foreign matter enters the propeller 80 area through the external primary protection, and is firstly accumulated at the position of the first gap 71 which is the movable gap of the propeller 80, and the anti-winding bracket 50 is arranged at the radial inner part of the first gap 71, so that the foreign matter is not directly involved in the propeller 80 and the power output shaft 20 to be wound, and the function of preventing the locked rotor is indirectly achieved.

Finally, even if impurities cross the anti-winding bracket 50 and enter the area of the power output shaft 20, due to the existence of the third interval 73, the size of the third interval 73 can be set to be smaller, the impurities can block the third interval 73, and a driving part, namely a locked-rotor alarm of the motor is triggered to play a role in protecting the motor. Specifically, when the power output shaft 20 is blocked or wound by a winding object, the rotation damping of the power output shaft 20 is increased, so that the rotating speed is reduced, and the controller can acquire the change of the rotating speed through an induction sensor arranged in the motor to judge that the power output shaft 20 is blocked or wound, so that the motor stalling alarm is started. The induction sensor is a sensor integrated in the motor for detecting the rotational speed of the motor. In other examples, the controller may also obtain the change of the rotation speed of the motor by detecting the back electromotive force or the electrical angle frequency when the motor operates, so as to determine that the power output shaft 20 is blocked or wound, thereby activating the motor stalling alarm.

The embodiment also provides a water carrying device, which comprises the underwater propeller.

The underwater thruster in this embodiment has the same structure as the underwater thruster in the foregoing embodiment, and can bring about the same or similar technical effects, and details are not repeated herein, and reference may be specifically made to the description of the foregoing embodiment.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which will enable those skilled in the art to understand the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. An underwater thruster, comprising a thruster body and a propeller, the thruster body comprising: the power output shaft, have open-ended shaft seal cabin and end cap used for closing the said open-ended, there are shaft seals in the said shaft seal cabin, the said power output shaft is worn to set up in the said shaft seal, the output terminal of the said power output shaft runs through the said end cap and stretches out to the outside of the said shaft seal cabin; the propeller is connected to the power output shaft, and a first interval is formed between the propeller and the end cover along the axial direction of the power output shaft;

and one surface of the end cover, which faces the propeller, is provided with an anti-winding support, and the anti-winding support is arranged on the radial inner side of the first interval in a blocking manner.

2. An underwater propulsor as claimed in claim 1, wherein the anti-wind bracket is a ring disposed around the circumference of the power take-off shaft; and/or

The anti-winding support is a cover-shaped piece.

3. An underwater propeller as claimed in claim 1 or 2, wherein the propeller includes a hub cap and a mounting portion provided inside the hub cap, the mounting portion being connected to the power take-off shaft, the end of the hub cap facing the shaft capsule and the end cap forming the first space therebetween.

4. Underwater propeller as claimed in claim 3, characterized in that a second space is formed between a radially inner side wall of the hub cap and a radially outer surface of the power take-off shaft, into which second space the anti-wind-up bracket extends in the axial direction of the power take-off shaft.

5. The underwater propeller as claimed in claim 4, wherein the end cap is provided with a through hole for the power output shaft to extend out, a third space is provided between the hole wall of the through hole and the power output shaft, and part of the structure of the anti-winding support is suspended and inserted in the second space.

6. The underwater propeller as claimed in claim 5, further comprising a controller for controlling an operating state of the underwater propeller, the propeller body further comprising a driving member and an alarm electrically connected to the controller, an output shaft of the driving member forming the power output shaft; the controller is used for controlling the alarm to give an alarm when the rotating speed of the power output shaft is smaller than a preset threshold value.

7. An underwater propulsion device as claimed in claim 1 or 2, wherein the end of the anti-wind bracket connected to the end cap is provided with a reinforcing rib; and/or

The end part of the anti-winding support, which is connected with the end cover, is provided with a chamfer structure.

8. An underwater propeller as claimed in claim 1 or 2, wherein the end cap is secured to the shaft capsule by a fastener, and the securing position of the fastener is radially outside the anti-wind up bracket.

9. An underwater propeller as claimed in claim 1 or 2, further comprising a propeller protecting cover, wherein a connecting rod is provided on the propeller protecting cover, and the connecting rod is further connected to the propeller main body so as to cover the propeller protecting cover outside the propeller.

10. An underwater propeller as claimed in claim 9, wherein the connecting rod comprises a first connecting rod extending in a radial direction of the power output shaft, and the propeller comprises a hub cap and blades provided at an outer periphery of the hub cap, and the first connecting rod is located at a side of the blades facing the propeller body.

11. A water craft comprising an underwater vehicle as claimed in any one of claims 1 to 10.

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