Lifting rod and propelling equipment

Abstract

The utility model discloses a lifting rod and propelling equipment. The lifting rod is applied to propelling equipment and comprises a metal outer rod and a carbon fiber inner rod, and the carbon fiber inner rod is fixedly arranged in the metal outer rod. Through combination of the metal outer rod and the carbon fiber inner rod, the bending strength of the lifting rod can be effectively improved.

Description

Technical Field

[0001] The present application relates to the field of marine propulsion technology, and in particular to a lifting rod and a propulsion device. Background Art

[0002] Propulsion equipment, also known as electric thrusters, top current engines or electronic anchors, is a device installed on the hull to provide power and steering for the hull. It is generally powered by electricity, has low noise and is environmentally friendly, and is welcomed by more and more ship users. In some application scenarios, propulsion equipment can help ships travel on the water, and in other application scenarios, propulsion equipment can help ships moor on the water. Propulsion equipment includes a propeller, which is the power source required for the ship to travel or moor, and generally includes a propeller and a power device (such as an electric motor, etc.).

[0003] The propeller is located underwater when working. In order to lift the propeller off the water surface or adjust the height of the propeller, the propulsion equipment is generally provided with a lifting rod, and the propeller is connected to the lower end of the lifting rod, so that the lifting and lowering of the lifting rod can drive the propeller to rise and fall. Utility Model Content

[0004] One or more embodiments of the present specification provide a lifting rod applied to a propulsion device, wherein the lifting rod comprises a metal outer rod and a carbon fiber inner rod, wherein the carbon fiber inner rod is fixed inside the metal outer rod.

[0005] In some embodiments, the metal outer rod is a stainless steel outer rod or a titanium alloy outer rod.

[0006] In some embodiments, the inner surface of the metal outer rod and the outer surface of the carbon fiber inner rod are connected by a gelatin layer.

[0007] In some embodiments, the length of the carbon fiber inner rod is less than the length of the metal outer rod; one end of the carbon fiber inner rod is a first distance away from one end of the metal outer rod, and the other end of the carbon fiber inner rod is a second distance away from the other end of the metal outer rod.

[0008] One or more embodiments of the present specification provide a propulsion device, wherein the propulsion device includes the lifting rod described in any embodiment of the present specification.

[0009] In some embodiments, the propulsion device also includes a motion control mechanism, a top shell and a propeller; the lifting rod is inserted into the motion control mechanism, one end of the lifting rod is provided with the top shell, and the other end of the lifting rod is provided with the propeller; the motion control mechanism can drive the lifting rod to lift and / or rotate, and then drive the propeller to lift and / or rotate.

[0010] In some embodiments, the carbon fiber inner rod is a hollow tube, a controller is provided in the top shell, the controller is electrically connected to the propeller via a wire, and the wire passes through the carbon fiber inner rod; alternatively, the carbon fiber inner rod is a solid rod.

[0011] In some embodiments, the length of the carbon fiber inner rod is less than the length of the metal outer rod; one end of the carbon fiber inner rod is separated from one end of the metal outer rod by a first distance; when the lifting rod is lowered to the lowest position, the length of the lifting rod inside and above the motion control mechanism is greater than or equal to the first distance.

[0012] In some embodiments, a flange is welded to the other end of the lifting rod, and the thruster is arranged at the other end of the lifting rod through the flange; the length of the carbon fiber inner rod is less than the length of the metal outer rod; the other end of the carbon fiber inner rod is a second distance away from the other end of the metal outer rod, and the welding position of the flange and the lifting rod is between the other end of the carbon fiber inner rod and the other end of the metal outer rod.

[0013] In some embodiments, the aspect ratio of the lifting rod is 40-80; the diameter of the lifting rod is 30 mm-80 mm, the wall thickness of the metal outer rod is 2 mm-6 mm, and the wall thickness of the carbon fiber inner rod is 3 mm-20 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] This specification will be further explained by way of exemplary embodiments, which will be described in detail by way of the accompanying drawings. The same numbers in the drawings represent the same structures or steps.

[0015] Figure 1 It is a schematic diagram of the internal structure of the lifting rod shown in some embodiments of this specification.

[0016] Figure 2 It is a schematic diagram of the structure of the lifting rod according to some embodiments of the present specification.

[0017] Figure 3 It is a schematic diagram of the structure of the lifting device shown in some embodiments of this specification.

[0018] Figure 4 It is a schematic structural diagram of the lifting device in another state according to some embodiments of the present specification.

[0019] Figure 5 It is a schematic diagram of the partial structure of the lifting device shown in some embodiments of this specification.

[0020] Markings in the figure: 1000 propulsion device, 100 lifting rod, 110 metal outer rod, 120 carbon fiber inner rod, 200 motion control mechanism, 210 lifting device, 220 rotating device, 300 top shell, 400 thruster, 500 flange, 600 base. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the embodiments will be described in detail below with reference to the accompanying drawings. Obviously, the contents described below are some examples or embodiments of this specification. For ordinary technicians in this field, without paying creative work, the technical solutions or means disclosed in this specification can also be applied to other scenarios based on these technical contents.

[0022] It should be understood that the "system", "device", "portion" and / or "part" used in this specification are a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0023] Unless otherwise specified, technical terms used in this specification to describe components, elements, etc. do not refer to the singular, but may also include the plural. Generally speaking, terms such as "include", "comprise", etc. only indicate that the steps, elements, or components that have been clearly identified are included, and these steps, elements, and components do not constitute an exclusive list, such as the method or device described may also include other steps or components.

[0024] In the description of this specification, it should be understood that the description of orientation, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In the description of this specification, unless otherwise clearly defined, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above terms in this specification in combination with the specific content of the technical solution.

[0025] The propulsion device, also known as an electric thruster, top-flow machine or electronic anchor, is a device installed on the hull to provide power and steering for the hull. It is generally driven by electricity, has low noise and is green and environmentally friendly, and is welcomed by more and more ship users. In some application scenarios, the propulsion device can help the ship travel on the water, and in other application scenarios, the propulsion device can help the ship moor on the water. The propulsion device includes a propeller, which is the source of power required for the ship to travel or moor, generally including a propeller and a power device (such as an electric motor, etc.). The propeller is located underwater when working. In order to lift the propeller off the water surface or adjust the height of the propeller, the propulsion device is generally provided with a lifting rod, and the propeller is connected to the lower end of the lifting rod, so that the lifting and lowering of the lifting rod can drive the propeller to rise and fall.

[0026] Existing lifting rods are generally made of a single material. For example, existing lifting rods are generally made of stainless steel. Since the propulsion equipment is installed on the hull, and the hull is at a certain distance from the water surface, when the propeller descends into the water, the lower part of the lifting rod will extend a long distance (such as 1 meter to 3 meters); further, under the propulsion force of the propeller, the lifting rod (especially the fulcrum position of the lifting rod) will be subjected to a large bending moment, which may cause the lifting rod to bend. In order to solve this problem, some embodiments of the present specification provide a lifting rod, which can effectively improve the bending strength of the lifting rod by combining a metal outer rod and a carbon fiber inner rod.

[0027] Figure 1 It is a schematic diagram of the internal structure of the lifting rod shown in some embodiments of this specification. Figure 2 Schematic diagram of the structure of the lifting rod according to some embodiments of the present invention. Figure 1-2 As shown, the lifting rod 100 may include a metal outer rod 110 and a carbon fiber inner rod 120, and the carbon fiber inner rod 120 is fixed inside the metal outer rod 110. In some embodiments, the metal outer rod 110 and the carbon fiber inner rod 120 may both be hollow rods or round tubes.

[0028] In some embodiments, the metal outer rod 110 may be a stainless steel outer rod or a titanium alloy outer rod. Both stainless steel and titanium alloy have good corrosion resistance and can maintain good performance in humid environments and chemical media. By setting the metal outer rod as a stainless steel outer rod or a titanium alloy outer rod, the service life of the lifting rod can be effectively improved. Carbon fiber has the characteristics of high strength and fatigue resistance. By setting a carbon fiber inner rod in the metal outer rod, the overall bending strength of the lifting rod can be effectively improved to ensure that the lifting rod will not bend even when subjected to a large bending force. In addition, since the carbon fiber material will become brittle under long-term ultraviolet radiation, by setting the carbon fiber inner rod in the metal outer rod, the carbon fiber inner rod can be prevented from being exposed to ultraviolet radiation, thereby improving the service life of the carbon fiber rod. In some alternative embodiments, the metal outer rod can also be made of other metal materials (such as aluminum alloy, aluminum-magnesium alloy, etc.).

[0029] In some embodiments, the metal outer rod 110 may be a titanium alloy outer rod. Titanium alloy is lightweight, and by configuring the lifting rod as a combination of a titanium alloy outer rod and a carbon fiber inner rod, the weight of the lifting rod can be effectively reduced, thereby facilitating the installation, use, and transportation of the lifting rod and the propulsion device.

[0030] In some embodiments, the inner surface of the metal outer rod 110 and the outer surface of the carbon fiber inner rod 120 are connected by a glue layer. In some embodiments, the outer diameter of the carbon fiber inner rod can be slightly smaller than the inner diameter of the metal outer rod. In the process of manufacturing the lifting rod 100, a layer of glue can be first applied to the outer surface of the carbon fiber inner rod or the inner surface of the metal outer rod, and then the carbon fiber inner rod is inserted into the metal outer rod and the carbon fiber inner rod is adjusted to a specified position. After the glue is cured, a glue layer is formed, thereby achieving the fixed connection between the metal outer rod and the carbon fiber inner rod. In some embodiments, the glue can also serve as a lubricant to facilitate the smooth insertion of the carbon fiber inner rod into the metal outer rod.

[0031] In some embodiments, the length of the carbon fiber inner rod is less than the length of the metal outer rod. Since the two ends of the lifting rod are generally not subjected to large bending forces, the length of the carbon fiber inner rod can be set to be less than the length of the metal outer rod, thereby saving costs and reducing the weight of the lifting rod on the basis of ensuring the bending strength of the lifting rod. In some embodiments, one end of the carbon fiber inner rod (such as the upper end) is separated from one end of the metal outer rod (such as the upper end) by a first distance (as shown in A in the figure), and the other end of the carbon fiber inner rod (such as the lower end) is separated from the other end of the metal outer rod (such as the lower end) by a second distance (as shown in B in the figure). In some embodiments, the first distance is equal to the second distance. In some embodiments, the first distance may be greater than or less than the second distance.

[0032] One or more embodiments of the present specification further provide a propulsion device, which may include the lifting rod described in any embodiment of the present specification.

[0033] Figure 3 It is a schematic diagram of the structure of the lifting device shown in some embodiments of this specification. Figure 4 It is a schematic structural diagram of the lifting device in another state according to some embodiments of the present specification. Figure 5 is a partial structural schematic diagram of a lifting device according to some embodiments of this specification. Figure 3-5 As shown, the propulsion device 1000 may include a lifting rod 100, a motion control mechanism 200, a top shell 300 and a propeller 400; the lifting rod 100 is inserted into the motion control mechanism 200, one end of the lifting rod 100 (the upper end in the figure) is provided with a top shell 300, and the other end of the lifting rod 100 (the lower end in the figure) is provided with a propeller 400; the motion control mechanism 200 can drive the lifting rod 100 to rise and / or rotate, and then drive the propeller 400 to rise and / or rotate.

[0034] In some embodiments, the propulsion device 1000 may further include a base 600, and at least a portion of the motion control mechanism 200 may be supported on the base 600 and mounted on the hull through the base 600. In some embodiments, the motion control mechanism 200 may include a lifting device 210, which may drive the lifting rod to rise or fall, thereby driving the propeller to rise or fall. In some embodiments, the motion control mechanism 200 may further include a rotating device 220, which may be used to drive the lifting rod 100 to rotate, thereby adjusting the direction of the propeller 400. In some embodiments, as Figure 3-5 As shown, the lifting device 210 can be arranged above the rotating device 220, and the rotating device 220 can drive the lifting rod 100 and the lifting device 210 to rotate together.

[0035] In some embodiments, in combination Figure 1-4 As shown, the carbon fiber inner rod 120 may be a hollow tube, and a controller may be provided in the top shell 300. The controller is electrically connected to the propeller 400 through a wire, and the wire passes through the carbon fiber inner rod 120. By passing the wire through the carbon fiber inner rod 120, the wire can be effectively prevented from contacting the seawater, and the propeller 400 can be easily controlled. In some embodiments, the carbon fiber inner rod 120 may be a solid rod.

[0036] In some embodiments, the length of the carbon fiber inner rod 120 is less than the length of the metal outer rod 110; one end of the carbon fiber inner rod is a first distance (eg, Figure 1 When the lifting rod is lowered to the lowest position, the length of the lifting rod in and above the motion control mechanism (as shown in Figure 4 When the lifting rod is lowered to the lowest position (as shown in C in the figure), the lifting rod is greater than or equal to the first distance. Figure 4In the state shown in FIG. 1 , the fulcrum of the lifting rod subjected to the bending force generated by the propeller 400 is generally near the lower end of the motion control mechanism, so the lifting rod is not subjected to too much bending force in the motion control mechanism and above the motion control mechanism. By leaving a first distance in the upper part of the lifting rod without arranging carbon fiber, the cost can be saved and the weight of the lifting rod can be reduced while ensuring the overall strength of the lifting rod.

[0037] In some embodiments, Figure 5 As shown, the other end of the lifting rod 100 (the lower end as shown in the figure) is welded with a flange 500, and the thruster 400 is arranged at the other end of the lifting rod 100 through the flange 500; the length of the carbon fiber inner rod 120 is less than the length of the metal outer rod 110; the other end of the carbon fiber inner rod 120 is separated from the other end of the metal outer rod 110 by a second distance (as shown in the figure Figure 1 As shown in Figure 5B), the welding position of the flange and the lifting rod is between the other end of the carbon fiber inner rod and the other end of the metal outer rod. In some embodiments, the other end of the lifting rod can be partially extended into the flange, and then the flange can be welded to the outer surface of the lifting rod. In order to avoid the high temperature of welding from damaging the carbon fiber inner rod, carbon fiber may not be set inside the welding position, that is, the welding position of the flange and the lifting rod is between the other end of the carbon fiber inner rod and the other end of the metal outer rod. In addition, since the part of the lifting rod close to the other end is close to the propeller 400, the bending moment generated by the propeller on this part is small, so even if carbon fiber is not set inside this part, it does not affect the overall strength of the lifting rod.

[0038] In some embodiments, the aspect ratio of the lifting rod may be 40 to 80. For example, the aspect ratio of the lifting rod may be 40, 50, 60, 65, 70, 80, etc. In some embodiments, the diameter of the lifting rod (i.e., the outer diameter of the metal outer rod) is 30 mm to 80 mm. For example, the diameter of the lifting rod may be 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, etc. In some embodiments, the wall thickness of the metal outer rod may be 2 mm to 6 mm. For example, the wall thickness of the metal outer rod may be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, etc. In some embodiments, the wall thickness of the carbon fiber inner rod may be 3 mm to 20 mm. For example, the wall thickness of the carbon fiber inner rod may be 3 mm, 5 mm, 10 mm, 15 mm, 20 mm, etc.

[0039] In some embodiments, the wall thickness of the metal outer rod and the wall thickness of the carbon fiber inner rod can be set according to the strength that the lifting rod needs to achieve after measurement. In some embodiments, the inner diameter of the carbon fiber inner rod can be greater than a certain threshold (such as 20mm) to ensure that the wire can pass smoothly. In some embodiments, the first distance between one end (such as the upper end) of the carbon fiber inner rod and one end (such as the upper end) of the metal outer rod (as shown in A in the figure) can be 100mm~400mm. In some embodiments, the second distance between the other end (such as the lower end) of the carbon fiber inner rod and the other end (such as the lower end) of the metal outer rod (as shown in B in the figure) can be 20mm~300mm.

[0040] The beneficial effects that may be brought about by the embodiments of this specification include but are not limited to: (1) By combining the metal outer rod and the carbon fiber inner rod, the bending strength of the lifting rod can be effectively improved; (2) By leaving a first distance on the upper part of the lifting rod without setting carbon fiber, the cost can be saved and the weight of the lifting rod can be reduced while ensuring the overall strength of the lifting rod; (3) By setting the metal outer rod as a stainless steel outer rod or a titanium alloy outer rod, the service life of the lifting rod can be effectively improved; (4) By setting the carbon fiber inner rod in the metal outer rod, the carbon fiber inner rod can be prevented from being exposed to ultraviolet rays, thereby improving the service life of the carbon fiber rod. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects.

[0041] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are taught in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

Claims

1. A lifting rod, applied to a propulsion device, characterized in that: The lifting rod comprises a metal outer rod and a carbon fiber inner rod, wherein the carbon fiber inner rod is fixed inside the metal outer rod; the inner surface of the metal outer rod and the outer surface of the carbon fiber inner rod are connected through a gelatin layer.

2. The lifting rod according to claim 1, characterized in that: The metal outer rod is a stainless steel outer rod or a titanium alloy outer rod.

3. The lifting rod according to claim 1, characterized in that: The length of the carbon fiber inner rod is less than that of the metal outer rod; one end of the carbon fiber inner rod is at a first distance from one end of the metal outer rod, and the other end of the carbon fiber inner rod is at a second distance from the other end of the metal outer rod.

4. A propulsion device, characterized in that: The invention comprises a lifting rod as claimed in any one of claims 1 to 3.

5. The propulsion device according to claim 4, characterized in that Also included are the motion control mechanisms, top shell, and thrusters; The lifting rod is arranged on the motion control mechanism, one end of the lifting rod is provided with the top shell, and the other end of the lifting rod is provided with the propeller; The motion control mechanism can drive the lifting rod to rise and fall and / or rotate, thereby driving the propeller to rise and fall and / or rotate.

6. The propulsion device according to claim 5, characterized in that The carbon fiber inner rod is in the shape of a hollow tube, a controller is provided in the top shell, the controller is electrically connected to the propeller via a wire, and the wire passes through the carbon fiber inner rod; alternatively, the carbon fiber inner rod is a solid rod.

7. The propulsion device according to claim 5, characterized in that The length of the carbon fiber inner rod is less than the length of the metal outer rod; one end of the carbon fiber inner rod is a first distance away from one end of the metal outer rod; When the lifting rod is lowered to the lowest position, the length of the lifting rod in and above the motion control mechanism is greater than or equal to the first distance.

8. The propulsion device according to claim 5, characterized in that The other end of the lifting rod is welded with a flange, and the propeller is arranged at the other end of the lifting rod through the flange; The length of the carbon fiber inner rod is shorter than the length of the metal outer rod; The other end of the carbon fiber inner rod is a second distance away from the other end of the metal outer rod, and the welding position of the flange and the lifting rod is between the other end of the carbon fiber inner rod and the other end of the metal outer rod.

9. The propulsion device according to claim 5, characterized in that The aspect ratio of the lifting rod is 40-80; the diameter of the lifting rod is 30mm-80mm, the wall thickness of the metal outer rod is 2mm-6mm, and the wall thickness of the carbon fiber inner rod is 3mm-20mm.

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