Water area propulsive force output device and water area propeller
By introducing elastic and thrust elements into the clearance fit between the torque push pin and the rotating part, the problem of easy detachment of the torque push pin is solved, achieving stable positioning of the torque push pin and protection of the device, and reducing maintenance costs.
Patent Information
- Application Number
- CN202521346966.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-08
- Estimated Expiration
- 2035-06-27
AI Technical Summary
In the prior art, the clearance fit between the torque drive pin and the rotating part is prone to detachment due to improper operation, vibration or water flow impact, which increases maintenance costs.
The design incorporates a clearance-fitted torque-driven pin and a rotating component, along with an elastic element and a thrust element. In the disassembled state, the elastic element abuts against the torque-driven pin to position itself in the pin hole, while in the assembled state, it is compressed to allow rotation. The limiting protrusion cooperates with the thrust element to ensure accurate positioning.
This effectively prevents the torque drive pin from falling off, reduces maintenance costs, improves installation efficiency and service life, reduces impact on the torque output shaft, and protects the safety of the components.
Smart Images
Figure CN224211244U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterborne mobile equipment, and in particular to a waterborne propulsion output device and a waterborne propulsion device. Background Technology
[0002] In electric outboard motors, a torque push pin is typically used to drive the rotating component and the motor's output shaft. The rotating component is usually a propeller, providing propulsion for mobile watercraft. To facilitate replacement of the torque push pin and rotating component, the torque push pin is typically clearance-fitted to both the torque output shaft and the rotating component. The torque push pin is installed with clearance in the pin hole of the torque output shaft, and both are inserted into the rotating component. In actual use, especially during the installation and removal of the rotating component, due to the clearance fit between the torque push pin and the pin hole, the torque push pin is prone to falling off or being lost due to improper operation, vibration, or water flow impact, increasing maintenance costs. Utility Model Content
[0003] This utility model provides a water propulsion output device and a water propulsion device, which reduces maintenance costs.
[0004] On one hand, this utility model provides a water propulsion output device, including a rotating component, a torque output shaft, and a torque push pin. The torque output shaft is provided with a pin hole, and the torque push pin passes through the pin hole with a clearance fit between the two. The rotating component is provided with a pin fitting groove and an abutment surface located outside the opening end of the pin fitting groove. The pin fitting groove can cooperate with the torque push pin and allow the rotating component to receive the torque of the torque output shaft.
[0005] The water propulsion output device further includes an elastic element and a thrust member; the thrust member is fixed to the torque output shaft; the elastic element is disposed between the thrust member and the torque push pin, and one end of the elastic element is connected to the thrust member;
[0006] When the rotating component is detached from the torque output shaft, the other end of the elastic component abuts against the torque push pin to provide elastic force so that the torque push pin abuts against the hole wall of the pin hole, thereby positioning the torque push pin in the pin hole;
[0007] When the rotating component and the torque output shaft are assembled, the torque push pin is located in the pin mating groove, and the abutting surface abuts against the other end of the elastic component to compress the elastic component, thereby causing the other end of the elastic component to separate from the torque push pin.
[0008] The rotating component is provided with a limiting protrusion, which protrudes from the abutment surface;
[0009] When the rotating component and the torque output shaft are assembled, the limiting protrusion abuts against the thrust member, the elastic member is located between the torque output shaft and the limiting protrusion, and the limiting protrusion and the elastic member are in clearance fit.
[0010] The elastic element is a rectangular spring, which is sleeved on the outside of the torque output shaft.
[0011] The thrust member is an annular member surrounding the torque output shaft, and one end of the elastic member abuts against the thrust member.
[0012] The limiting protrusions are two or more, arranged in a ring around the torque output shaft.
[0013] Wherein, the outer diameter of the annular structure formed by two or more of the limiting protrusions is greater than the outer diameter of the thrust member.
[0014] Wherein, the outer diameter of the thrust member is equal to the axial length of the torque push pin.
[0015] The pin mating groove is straight, and there are two limiting protrusions, which are respectively disposed on both sides of the width direction of the pin mating groove. Each limiting protrusion is an arc shape disposed circumferentially along the torque output shaft.
[0016] The rotating component has an assembly groove on the side facing away from the pin mating groove, and a nut is provided in the assembly groove; the rotating component has a shaft hole at its axial center, and the shaft hole connects the pin mating groove and the assembly groove; the torque output shaft passes through the shaft hole and is threadedly connected to the nut.
[0017] On the other hand, this utility model provides a water propulsion device, including a torque output device and the aforementioned water propulsion force output device; the torque output device is connected to the torque output shaft to drive the rotating component to rotate.
[0018] The water propulsion output device and water propeller provided by this utility model, when the rotating part and the torque output shaft are in a disassembled state, the torque push pin is inserted into the pin hole, and the elastic part elastically abuts against the torque push pin, so that the torque push pin is pressed against the inner wall of the pin hole by the force of the elastic part, and thus positioned in the pin hole. The torque push pin will not fall out of the pin hole, effectively avoiding the torque push pin from falling out and being lost. Attached Figure Description
[0019] Figure 1 A schematic diagram of the structure of the water propulsion output device in the disassembled state, which is a preferred embodiment of this utility model;
[0020] Figure 2 yes Figure 1A schematic diagram of the mid-water propulsion output device from another angle in its disassembled state;
[0021] Figure 3 yes Figure 1 Axial cross-sectional view of the mid-water propulsion output device in disassembled state;
[0022] Figure 4 yes Figure 1 Axial sectional view of the mid-water propulsion output device in its assembled state;
[0023] Figure 5 This is a structural schematic diagram of the water propulsion device provided in a preferred embodiment of the present invention. Detailed Implementation
[0024] The following description will be given with reference to the accompanying drawings for a more complete description of the present invention. The drawings show exemplary embodiments of the present invention. However, the present invention may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.
[0025] Similar reference numerals indicate the same or similar components.
[0026] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to limit the invention. As used herein, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Furthermore, when used herein, “comprising” and / or “including” and / or “having,” integers, steps, operations, components, and / or components, but does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components, and / or groups thereof.
[0027] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, unless expressly defined herein, terms such as those defined in a general dictionary shall be interpreted as having the same meaning as they have in the relevant art and in the context of this invention, and shall not be interpreted as having an idealized or overly formal meaning.
[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0029] like Figure 1 and Figure 2As shown, the water propulsion output device 100 includes a rotating component 1, a torque output shaft 2, and a torque push pin 3. When the rotating component 1 rotates in the water, it interacts with the water, thereby acquiring propulsion force and providing it to the water propulsion device. The rotating component can be a propeller, a turbine of a jet propulsion device, or an impeller of a water pump. The torque output shaft 2 has a pin hole 20, through which the torque push pin 3 passes with a clearance fit.
[0030] The rotating component 1 is provided with a pin-fitting groove 11 and an abutment surface 12 located outside the open end of the pin-fitting groove 11. The pin-fitting groove 11 can engage with the torque push pin 3 and allow the rotating component 1 to receive the torque from the torque output shaft 2. The torque output shaft 2 can drive the torque push pin 3 to rotate, and the pin-fitting groove 11 engages with the torque push pin 3 to output torque to the rotating component 1, thereby causing the rotating component 1 to rotate.
[0031] like Figure 1 As shown, the water propulsion output device 100 also includes an elastic element 4 and a thrust element 5; the thrust element 5 is fixed to the torque output shaft 2; the elastic element 4 is disposed between the thrust element 5 and the torque push pin 3, and one end of the elastic element 4 is connected to the thrust element 5.
[0032] like Figure 1 and Figure 3 As shown, when the rotating part 1 is detached from the torque output shaft 2, the other end of the elastic part 4 abuts against the torque push pin 3 to provide elastic force so that the torque push pin 3 abuts against the hole wall of the pin hole 20, so that the torque push pin 3 is positioned in the pin hole 20.
[0033] When the rotating component 1 is detached from the torque output shaft 2, the torque push pin 3 is inserted into the pin hole 20. The elastic element 4 resists the torque push pin 3, causing the torque push pin 3 to be pressed tightly against the inner wall of the pin hole 20 by the force of the elastic element 4, thus positioning it in the pin hole 20. The torque push pin 3 will not fall out of the pin hole 20, effectively preventing it from falling out and being lost. At the same time, the elastic element 4 can be used to position the torque push pin 3 at a designated position in the pin hole 20, ensuring that the torque push pin 3 is centered on the torque output shaft 2, reducing installation difficulty and improving installation efficiency.
[0034] like Figure 4As shown, when the rotating component 1 and the torque output shaft 2 are assembled, the torque push pin 3 is located in the pin fitting groove 11, and the abutment surface 12 abuts against the other end of the elastic component 4 to compress the elastic component 4, thereby separating the other end of the elastic component 4 from the torque push pin 3. The torque push pin 3 and the pin hole 20 are in a clearance fit state. During the process of the torque push pin 3 driving the rotating component 1 to rotate, the gap between the torque push pin 3 and the rotating component 1 can absorb some of the vibration and play a buffering role, avoiding impact on the torque output shaft 2 and protecting the safety of the device that outputs torque to the torque output shaft 2.
[0035] When the rotating part 1 and the torque output shaft 2 are assembled, the contact surface 12 of the rotating part 1 abuts against the other end of the elastic part 4, causing the elastic part 4 to deform. The other end of the elastic part 4 separates from the torque push pin 3, so that the torque push pin 3 is not subjected to the force of the elastic part 4 during the transmission process, thereby improving the service life of the torque push pin 3.
[0036] like Figure 2 As shown, the rotating component 1 is provided with a limiting protrusion 13, which protrudes from the abutment surface 12. Figure 4 As shown, when the rotating component 1 and the torque output shaft 2 are assembled, the limiting protrusion 13 abuts against the thrust member 5, and the elastic member 4 is located between the torque output shaft 2 and the limiting protrusion 13, with a clearance fit between the limiting protrusion 13 and the elastic member 4. The cooperation between the limiting protrusion 13 and the thrust member 5 ensures that the torque push pin 3 and the rotating component 1 are properly assembled, preventing excessive deformation of the elastic member 4 from affecting its performance. The clearance between the limiting protrusion 13 and the elastic member 4 prevents the limiting protrusion 13 from interfering with the deformation of the elastic member 4.
[0037] The elastic element 4 is a rectangular spring, which is sleeved on the outside of the torque output shaft 2. During installation, the elastic element 4 is simply sleeved on the outside of the torque output shaft 2, which facilitates the assembly and connection between the elastic element 4 and the torque output shaft 2, and ensures that the limiting protrusion 13 and the elastic element 4 maintain a predetermined gap. Of course, in other embodiments, the elastic element 4 can also be a spring sheet or other components that can provide elastic force.
[0038] like Figure 1 As shown, the thrust member 5 is an annular member surrounding the torque output shaft 2, and one end of the elastic member 4 abuts against the thrust member 5. The thrust member 5 can be fitted over the torque output shaft 2, facilitating the assembly and connection between the thrust member 5 and the torque output shaft 2. Specifically, the thrust member 5 can be threaded to the torque output shaft 2, or a groove can be provided on the torque output shaft 2, and the thrust member 5 can be an annular retaining spring that engages in the groove. Since the thrust member 5 is annular, one end of the elastic member 4 can directly abut against the thrust member 5, facilitating the connection between the elastic member 4 and the thrust member 5 and allowing for the deformation of the elastic member 4.
[0039] like Figure 2 As shown, there are two or more limiting protrusions 13, arranged in a ring around the torque output shaft 2. Each limiting protrusion 13 can abut against the thrust member 5, which facilitates the abutment between the limiting protrusion 13 and the ring-shaped thrust member 5. The thrust member 5 can receive the force of the limiting protrusions 13 at all around, so that the thrust member 5 is balanced by force.
[0040] The outer diameter of the annular structure formed by two or more limit protrusions 13 is larger than the outer diameter of the thrust member 5, which can improve the structural strength of the limit protrusions 13. Furthermore, the outer peripheral surface of the thrust member 5 is located within the outer peripheral surface of the limit protrusions 13, which facilitates the contact between the limit protrusions 13 and the thrust member 5.
[0041] like Figure 3 As shown, the outer diameter of the thrust member 5 is equal to the axial length of the torque push pin 3. When the torque push pin 3 is inserted into the pin hole 20, the two ends of the torque push pin 3 are aligned with the outer periphery of the thrust member 5, so that the torque push pin 3 is in the center position of the torque output shaft 2, which facilitates the installation of the torque push pin 3.
[0042] like Figure 2 As shown, the pin mating groove 11 is in the shape of a straight line, and there are two limiting protrusions 13, which are respectively set on both sides of the width direction of the pin mating groove 11. Each limiting protrusion 13 is an arc shape set along the circumference of the torque output shaft 2 to further improve the structural strength of the limiting protrusion 13. The elastic element 4 can be located inside the ring formed by the two limiting protrusions 13 to prevent other external objects from contacting the elastic element 4 and to ensure that the deformation of the elastic element 4 is not disturbed by the outside world.
[0043] like Figure 3 As shown, the side of the rotating component 1 facing away from the pin mating groove 11 is provided with an assembly groove 14, and a nut 6 is provided in the assembly groove 14; a shaft hole 15 is provided at the axial center of the rotating component 1, and the shaft hole 15 connects the pin mating groove 11 and the assembly groove 14. Figure 4 As shown, the torque output shaft 2 passes through the shaft hole 15 and is threadedly connected to the nut 6.
[0044] The end of the torque output shaft 2 can pass through the shaft hole 15 and enter the assembly groove 14. By using the nut 6 to connect with the torque output shaft 2 by thread, the rotating part 1 can be assembled on the torque output shaft 2, and the nut 6 can provide a preload force to the rotating part 1, so that the elastic part 4 is in a deformed state, thereby separating the elastic part 4 from the torque push pin 3.
[0045] The water propulsion output device and water propeller provided by this utility model are assembled by first fitting the elastic element 4 onto the outside of the torque output shaft 2 and abutting the elastic element 4 against the thrust member 5. Then, the elastic element 4 is compressed, and the torque push pin 3 is inserted into the pin hole 20. The elastic element 4 is then released, so that the elastic element 4 abuts against the part of the torque push pin 3 located outside the pin hole 20, thereby positioning the torque push pin 3 at the pin hole 20 and preventing it from falling off. At this time, the position of the torque push pin 3 can be finely adjusted so that the torque push pin 3 is centered on the torque output shaft 2. Then, the torque output shaft 2 is inserted into the shaft hole 15, and the torque push pin 3 enters the pin fitting groove 11 until the limiting protrusion 13 abuts against the thrust member 5. The elastic element 4 is compressed by the force of the abutment surface 12, thereby separating it from the torque output shaft 2. At the same time, the end of the torque output shaft 2 enters the assembly groove 14. Finally, the nut 6 is installed on the end of the torque output shaft 2, completing the assembly of the water propulsion output device.
[0046] During disassembly, remove the nut 6 at the end of the torque output shaft 2 and take the torque output shaft 2 out of the shaft hole 15. Then the rotating part 1 can be removed. At this time, the force of the contact surface 12 on the elastic part 4 is canceled. The elastic part 4 extends and abuts against the torque push pin 3, so that the torque push pin 3 is positioned at the pin hole 20 and will not fall off from the pin hole 20, effectively preventing the torque push pin 3 from falling off and being lost.
[0047] By incorporating the elastic element 4 and the thrust element 5, this invention allows for convenient and quick assembly and disassembly of the rotating element 1, the torque output shaft 2, and the torque push pin 3.
[0048] like Figure 5 As shown, this utility model also provides a water propulsion device, which can be an outboard motor, podded propulsion device, or other water power equipment. The water propulsion device includes a torque output device 200 and the aforementioned water propulsion force output device 100. The torque output device 200 can be a motor, engine, or other device capable of outputting torque. It outputs propulsion force through the water propulsion force output device, thereby enabling commercial ships, fishing boats, passenger ships, yachts, and other equipment to move in water. The torque output device 200 is connected to the torque output shaft 2 of the water propulsion force output device 100 to drive the rotating component 1 to rotate.
[0049] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.
Claims
1. A water propulsion output device, comprising a rotating component, a torque output shaft, and a torque push pin, wherein the torque output shaft has a pin hole, and the torque push pin passes through the pin hole with a clearance fit; characterized in that, The rotating component is provided with a pin engagement groove and an abutment surface located outside the open end of the pin engagement groove. The pin engagement groove can engage with the torque push pin and allow the rotating component to receive the torque of the torque output shaft. The water propulsion output device further includes an elastic element and a thrust member; the thrust member is fixed to the torque output shaft; the elastic element is disposed between the thrust member and the torque push pin, and one end of the elastic element is connected to the thrust member; When the rotating component is detached from the torque output shaft, the other end of the elastic component abuts against the torque push pin to provide elastic force so that the torque push pin abuts against the hole wall of the pin hole, thereby positioning the torque push pin in the pin hole; When the rotating component and the torque output shaft are assembled, the torque push pin is located in the pin mating groove, and the abutting surface abuts against the other end of the elastic component to compress the elastic component, thereby causing the other end of the elastic component to separate from the torque push pin.
2. The water propulsion output device according to claim 1, characterized in that, The rotating component is provided with a limiting protrusion, which protrudes from the abutment surface; When the rotating component and the torque output shaft are assembled, the limiting protrusion abuts against the thrust member, the elastic member is located between the torque output shaft and the limiting protrusion, and the limiting protrusion and the elastic member are in clearance fit.
3. The water propulsion output device according to claim 2, characterized in that, The elastic element is a rectangular spring, which is sleeved on the outside of the torque output shaft.
4. The water propulsion output device according to claim 2, characterized in that, The thrust member is an annular member surrounding the torque output shaft, and one end of the elastic member abuts against the thrust member.
5. The water propulsion output device according to claim 4, characterized in that, There are two or more limiting protrusions, arranged in a ring around the torque output shaft.
6. The water propulsion output device according to claim 5, characterized in that, The outer diameter of the annular structure formed by two or more of the aforementioned limiting protrusions is greater than the outer diameter of the thrust member.
7. The water propulsion output device according to claim 4, characterized in that, The outer diameter of the thrust member is equal to the axial length of the torque push pin.
8. The water propulsion output device according to claim 2, characterized in that, The pin mating groove is straight, and there are two limiting protrusions, which are respectively arranged on both sides of the width direction of the pin mating groove. Each limiting protrusion is an arc shape arranged circumferentially along the torque output shaft.
9. The water propulsion output device according to any one of claims 1-8, characterized in that, The rotating component has an assembly groove on the side facing away from the pin mating groove, and a nut is provided in the assembly groove; a shaft hole is provided at the axial center of the rotating component, and the shaft hole connects the pin mating groove and the assembly groove; the torque output shaft passes through the shaft hole and is threadedly connected to the nut.
10. A water propulsion device, characterized in that, It includes a torque output device and a water propulsion output device as described in any one of claims 1-9; the torque output device is connected to the torque output shaft to drive the rotating component to rotate.