Endurance test device for hoisting mechanism of outboard motor

Abstract

A durability testing device for a hoisting mechanism of an outboard motor comprises a testing platform and a loading mechanism which is arranged on the testing platform and used for testing the durability of the hoisting mechanism, and the loading mechanism comprises a support, a lifting part installed on the support and a loading part connected between the lifting part and the support. The loading part is configured to apply a variable load to the hoisting mechanism, and the lifting part is configured to transmit the load to the hoisting mechanism; compared with the prior art, long-time stable and reliable load is provided for the hoisting mechanism, so that the hoisting mechanism continuously operates under the rated load, and meanwhile, the loading part can accurately adjust the load, so that the load of the hoisting mechanism is changed, the load change is fed back under the action of the pressure sensor, and the hoisting mechanism can continuously operate under the rated load. Therefore, the actual working conditions of the hoisting mechanism of the outboard motor can be simulated, the test effect of the hoisting mechanism under the rated load for a long time or high frequency is improved, and the accuracy of the test effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of marine technology, specifically to a durability testing device for outboard motor lifting mechanisms. Background Technology

[0002] An outboard motor is a propulsion device installed on the outside of the stern of a vessel, providing power to small boats. An outboard motor mainly includes an engine, transmission system, lifting mechanism, propeller, and control system. The lifting mechanism is the core component that controls the outboard motor's tilt angle and elevation in the water. It is mainly used to adjust the propeller's depth in the water, adapt to different aquatic environments, and optimize the vessel's performance during navigation.

[0003] The flexibility, positioning accuracy, safety, and service life of the hoisting mechanism's extension and retraction movements have always been important indicators for manufacturing qualified hoisting mechanisms. To ensure the production quality of hoisting mechanisms, safety inspections such as inching control tests, lifting force tests, and durability tests are generally conducted. These tests are all static tests of the hoisting mechanism cylinder. For example, the durability test examines the stability of the hoisting mechanism after multiple extensions and retractions over a long period of time.

[0004] To address the aforementioned issues, Chinese Patent Application No. 202222111476.5 discloses a dynamic testing device for a lifter. This device comprises a support member, a lifter, an outboard motor simulator, and a swaying simulation mechanism. The top of the support member is hinged to the top of the outboard motor simulator. A tension / compression sensor is installed in the middle of the outboard motor simulator, and a connecting seat is fixed to the sensing surface of the tension / compression sensor. Both ends of the lifter are hinged to the middle of the support member and the connecting seat, respectively. The swaying simulation mechanism is used to drive the support member to simulate the surging state of a boat on the water surface. Chinese Patent Application No. 202420807763.6 discloses a durability testing device for an outboard motor operating handle. The disclosed durability testing device includes: a support platform; a handle bracket connected to the support platform, the handle bracket being used to mount the test handle and such that the grip of the test handle protrudes from the handle bracket; a power support frame connected to the support platform; a drive assembly connected to the power support frame, and the drive assembly being detachably connected to the grip of the test handle, the drive assembly being used to drive the grip of the test handle to rotate; and a detection component connected to the power support frame and the drive assembly, used to detect the number of rotations of the test handle.

[0005] In the aforementioned prior art, the lifting mechanism is fixed by a support member, and the outboard motor simulator is set on the lifting mechanism to simulate the weight of the outboard motor. At the same time, a swaying simulation mechanism is used to simulate the surging state of the boat on the water surface in the actual use environment, thereby realizing the testing of the lifting mechanism. However, in the above scheme, the load borne by the lifting mechanism is fixed during the testing process, and the swaying of the swaying simulation mechanism makes the change in the load on the lifting mechanism small and the magnitude of the load cannot be accurately controlled, so it is impossible to truly test the durability of the lifting mechanism. Utility Model Content

[0006] The present invention aims to overcome the defects in the prior art and provide a durability testing device for outboard motor hoisting mechanisms that can adjust the load size and improve the testing accuracy and efficiency of the hoisting mechanism.

[0007] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a durability testing device for an outboard motor hoisting mechanism, comprising a testing platform and a loading mechanism disposed on the testing platform for testing the durability of the hoisting mechanism. The loading mechanism includes a bracket, a lifting part mounted on the bracket, and a loading part connected between the lifting part and the bracket. The loading part is configured to apply a variable load to the hoisting mechanism, and the lifting part is configured to transfer the load to the hoisting mechanism. A pressure sensor that provides feedback on the load magnitude is provided on the lifting part.

[0008] As a preferred embodiment of the present invention, the loading part includes a first electromagnet and a second electromagnet that are spaced apart and have magnetic poles that repel each other. The first electromagnet is disposed on the top of the bracket, and the second electromagnet is disposed on the lifting part and moves up and down synchronously with the lifting part.

[0009] In a preferred embodiment of this utility model, the lifting part is slidably connected to the bracket, the lifting mechanism is connected to the lifting part, and the lifting mechanism is located below the lifting part.

[0010] As a preferred embodiment of the present invention, the lifting part includes a lifting plate and connecting blocks disposed at opposite ends of the lifting plate, and the connecting blocks are provided with connecting shafts that are slidably connected to the bracket.

[0011] As a preferred embodiment of the present invention, the bracket includes a top plate and support plates disposed at both ends of the top plate. The support plates are disposed on the test platform, and the support plates are provided with a sliding groove disposed along the height direction of the support plates. The connecting shaft is slidably connected in the sliding groove.

[0012] In a preferred embodiment of this utility model, the first electromagnet is disposed on the lower surface of the top plate, and the second electromagnet is disposed on the lifting plate, with the second electromagnet located directly below the first electromagnet.

[0013] As a preferred embodiment of this utility model, the bottom of the lifting plate is provided with lifting columns, which are located at opposite ends of the lifting plate, and the test platform is provided with a base for guiding the lifting columns to move up and down.

[0014] As a preferred embodiment of this utility model, the base is provided with guide portions on both sides, and the guide portions are provided with guide holes arranged along the height direction of the base, and the lifting column is slidably connected in the guide holes.

[0015] As a preferred embodiment of this utility model, the bottom of the lifting plate is provided with a hinge seat for connecting the lifting mechanism, and the pressure sensor is disposed between the hinge seat and the lifting plate.

[0016] As a preferred embodiment of this utility model, the test platform is provided with a plurality of mounting slots arranged along the length of the test platform, and the loading mechanism and the lifting mechanism are both connected to the mounting slots. The test platform is also provided with a power supply for power supply.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The lifting unit is mounted on the bracket, and the loading unit is located between the lifting unit and the bracket. The load is applied through the loading unit and transferred to the lifting mechanism through the lifting unit, thereby providing a long-term stable and reliable load to the lifting mechanism, enabling the lifting mechanism to operate continuously under rated load. At the same time, the loading unit can precisely adjust the load size, thereby changing the load size of the lifting mechanism. Under the action of the pressure sensor, the load change is fed back, which can simulate the actual working conditions of the outboard motor lifting mechanism, improve the test effect of the lifting mechanism under rated load for a long time or high frequency, and ensure the accuracy of the test results.

[0019] 2. Furthermore, by using a first electromagnet and a second electromagnet spaced apart and with repulsive magnetic poles, a stable load is provided for the lifting mechanism. Simultaneously, the second electromagnet is mounted on the lifting section and moves up and down with it. As the second electromagnet moves, the distance between the first and second electromagnets increases, reducing the repulsive force and thus decreasing the load on the lifting mechanism. This allows for a controllable change in the load on the lifting mechanism. By increasing or decreasing the current to the first and second electromagnets, precise control of the load can be achieved, ensuring the effectiveness of the test on the lifting mechanism. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is the front view of this utility model;

[0022] Figure 3This is a cross-sectional view of the present invention.

[0023] Reference numerals: Test platform 1, mounting slot 101, lifting mechanism 2, loading mechanism 3, bracket 301, top plate 3011, support plate 3012, slide 3013, lifting part 302, lifting plate 3021, connecting block 3022, connecting shaft 3023, lifting column 3024, loading part 303, first electromagnet 3031, second electromagnet 3032, pressure sensor 304, base 305, guide part 3051, guide hole 3052, hinge seat 306, power supply 4. Detailed Implementation

[0024] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] like Figures 1-3 As shown, a durability testing device for an outboard motor lifting mechanism includes a test platform 1 and a loading mechanism 3 disposed on the test platform 1 for testing the durability of the lifting mechanism 2. The loading mechanism 3 includes a bracket 301, a lifting part 302 mounted on the bracket 301, and a loading part 303 connected between the lifting part 302 and the bracket 301. The loading part 303 is configured to apply a variable load to the lifting mechanism 2, and the lifting part 302 is configured to transfer the load to the lifting mechanism 2. A pressure sensor 304 that provides feedback on the load magnitude is provided on the lifting part 302.

[0026] Furthermore, the test platform 1 is placed horizontally, the lifting mechanism 2 is placed on the test platform 1, the bracket 301 is fixedly installed on the test platform 1, the lifting part 302 is installed on the bracket 301, and the lifting part 302 can move up and down on the bracket 301. The loading part 303 is positioned between the bracket 301 and the lifting part 302, applying load through the loading part 303 and transferring the load to the lifting mechanism 2 through the lifting part 302, thereby simulating the load borne by the lifting mechanism 2 in the actual working environment. The load provided by the loading part 303 provides a long-term stable and reliable load to the lifting mechanism 2, enabling the lifting mechanism 2 to operate continuously under rated load. At the same time, the loading part 303 can accurately adjust the load size, thereby changing the load size of the lifting mechanism 2. Under the action of the pressure sensor 304, the load change is fed back, thus simulating the actual working conditions of the outboard motor's lifting mechanism 2, improving the test effect of the lifting mechanism 2 under rated load for a long time or at high frequency, and ensuring the accuracy of the test results.

[0027] Furthermore, the loading unit 303 serves as a load providing device and can use a cylinder, electric push rod, hydraulic cylinder, etc. as the load output unit. However, since the load provided by the cylinder, electric push rod, and hydraulic cylinder is fixed, the load size cannot be adjusted. Therefore, it is preferable to use an electromagnet as the load output unit, and adjust the load size by changing the current.

[0028] Specifically, the loading part 303 includes a first electromagnet 3031 and a second electromagnet 3032 spaced apart and with repulsive magnetic poles. The first electromagnet 3031 is disposed on the top of the bracket 301, and the second electromagnet 3032 is disposed on the lifting part 302 and moves synchronously with the lifting part 302. Further, the current directions of the first electromagnet 3031 and the second electromagnet 3032 are opposite, and the same magnetic poles of the first electromagnet 3031 and the second electromagnet 3032 are placed opposite each other, i.e., N pole to N pole, or S pole to S pole. A certain distance is provided between the first electromagnet 3031 and the second electromagnet 3032. The lifting part 302 is slidably connected to the bracket 301, and the lifting mechanism 2 is connected to the lifting part 302 and is located below the lifting part 302. The lifting part 302 can move along the height of the bracket 301. Directional sliding; when the first electromagnet 3031 and the second electromagnet 3032 are energized, the two electromagnets repel each other, causing the second electromagnet 3032 to descend synchronously with the lifting part 302, thereby applying the load to the lifting mechanism 2; through the spaced and mutually repelling first and second electromagnets, a stable load is provided to the lifting mechanism. At the same time, the second electromagnet is set on the lifting part and rises and falls simultaneously with the lifting part. As the second electromagnet moves, the distance between the first and second electromagnets increases, thereby reducing the repulsive force and reducing the load borne by the lifting mechanism. This allows for a change in the load size of the lifting mechanism, and the change in load size is controllable. By increasing or decreasing the current of the first and second electromagnets, precise control of the load can be achieved, ensuring the testing effect of the lifting mechanism.

[0029] The lifting unit 302 includes a lifting plate 3021 and connecting blocks 3022 disposed at opposite ends of the lifting plate 3021. The connecting blocks 3022 are provided with connecting shafts 3023 that are slidably connected to the bracket 301. Furthermore, the lifting plate 3021 is horizontally disposed, the connecting blocks 3022 are located at opposite ends of the lifting plate 3021, the connecting shafts 3023 are disposed along the length direction of the lifting plate 3021, and the connecting shafts 3023 are slidably connected to the bracket 301. The connection between the lifting plate 3021 and the bracket 301 is realized through the connecting shafts 3023.

[0030] The bracket 301 includes a top plate 3011 and support plates 3012 disposed at both ends of the top plate 3011. The support plates 3012 are disposed on the test platform 1. The support plates 3012 are provided with a sliding groove 3013 disposed along the height direction of the support plates 3012. The connecting shaft 3023 is slidably connected in the sliding groove 3013. Further, the top plate 3011 is horizontally disposed, and two support plates 3012 are provided, and the two support plates 3012 are respectively disposed at opposite ends of the top plate 3011. The support plates 3012 are perpendicular to the top plate 3011. The two support plates 3012 are fixedly connected to the test platform 1 and are vertically connected to the test platform 1. The support plates 3012 are provided with a sliding groove 3013 disposed along the height direction of the support plates 3012. At the same time, the connecting shafts 3023 at both ends of the lifting plate 3021 are slidably connected in the corresponding sliding grooves 3013, thereby realizing the lifting function of the lifting plate 3021.

[0031] The first electromagnet 3031 is disposed on the lower surface of the top plate 3011, and the second electromagnet 3032 is disposed on the lifting plate 3021, with the second electromagnet 3032 located directly below the first electromagnet 3031. Furthermore, a mounting hole is provided in the middle of the top plate 3011, and bolts are used to fix the first electromagnet 3031 to the top plate 3011 through the mounting hole. The first electromagnet 3031 is mounted on the lower surface of the top plate 3011, and the second electromagnet 3032 is also mounted on the upper surface of the middle part of the lifting plate 3021. The first electromagnet 3031 and the second electromagnet 3032 are arranged opposite each other, with the first electromagnet 3031 directly facing the second electromagnet 3032, thereby ensuring that the repulsive force between the two electromagnets is at its maximum.

[0032] The bottom of the lifting plate 3021 is provided with lifting columns 3024, which are located at opposite ends of the lifting plate 3021. The test platform 1 is provided with a base 305 for guiding the lifting columns 3024 to move up and down. Furthermore, there are two lifting columns 3024, which are respectively located on the lower surface of opposite ends of the lifting plate 3021 and are vertically mounted on the lifting plate 3021. In addition, the base 305 is fixedly installed on the test platform 1, and the lifting columns 3024 are connected to the base 305. The base 305 guides the lifting columns 3024 to move up and down.

[0033] Specifically, guide portions 3051 are provided on both sides of the base 305. Guide holes 3052 are provided on the guide portions 3051 along the height direction of the base 305. Lifting columns 3024 are slidably connected in the guide holes 3052. Furthermore, the guide portions 3051 are located on both sides of the base 305. Guide holes 3052 are provided in the guide portions 3051 along the height direction of the guide portions 3051 and the top of the guide holes 3052 is open. The two lifting columns 3024 are slidably installed in the corresponding guide holes 3052. The lifting columns 3024 are guided by the guide holes 3052, thereby ensuring that the lifting plate 3021 always remains horizontal during the lifting process, avoiding the situation where one end of the lifting plate 3021 is high and the other end is low. This ensures that the load applied by the loading part 303 can be fully applied to the lifting mechanism 2, thereby ensuring the accuracy of the load detection of the lifting mechanism 2.

[0034] The bottom of the lifting plate 3021 is provided with a hinge seat 306 for connecting the lifting mechanism 2. The pressure sensor 304 is disposed between the hinge seat 306 and the lifting plate 3021. Furthermore, the hinge seat 306 is fixed in the middle of the lifting plate 3021, and the output shaft of the lifting mechanism 2 is hinged to the hinge seat 306. The pressure sensor 304 is disposed on the lower surface of the lifting plate 3021, that is, the pressure sensor 304 is located between the lifting plate 3021 and the hinge seat 306, thereby ensuring the accuracy of the load detection of the lifting mechanism 2 by the pressure sensor 304.

[0035] The test platform 1 is provided with several mounting slots 101 arranged along the length of the test platform 1. The loading mechanism 3 and the lifting mechanism 2 are both connected to the mounting slots 101. The test platform 1 is also provided with a power supply 4 for power supply. Furthermore, the support plate 3012 and the base 305 of the loading mechanism 3 are installed in the mounting slots 101 by bolts. At the same time, the lifting mechanism 2 is also fixed in the mounting slots 101, which ensures that the loading mechanism 3 and the lifting mechanism 2 remain stable during the test, thereby ensuring the accuracy of the test results.

[0036] In addition, power supply 4 is also set on test platform 1. Power supply 4 is electrically connected to first electromagnet 3031, second electromagnet 3032, pressure sensor 304 and lifting mechanism 4 respectively, and supplies power to first electromagnet 3031, second electromagnet 3032, pressure sensor 304 and lifting mechanism 4 through power supply 4.

[0037] When the power supply 4 is turned on, the first electromagnet 3031 and the second electromagnet 3032 are energized, providing a stable load for the hoisting mechanism 2. The hoisting mechanism 2 operates continuously under the rated load, and the pressure sensor 304 provides feedback on load changes. This can simulate the actual working conditions of the outboard motor hoisting mechanism and detect the performance of the hoisting mechanism 2 under long-term or high-frequency use under the rated load.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not 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.

[0039] Although this document frequently uses reference numerals from the accompanying drawings, such as test platform 1, mounting slot 101, lifting mechanism 2, loading mechanism 3, bracket 301, top plate 3011, support plate 3012, slide 3013, lifting part 302, lifting plate 3021, connecting block 3022, connecting shaft 3023, lifting column 3024, loading part 303, first electromagnet 3031, second electromagnet 3032, pressure sensor 304, base 305, guide part 3051, guide hole 3052, hinge seat 306, and power supply 4, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A durability testing device for an outboard motor lifting mechanism, characterized in that, The test platform (1) and a loading mechanism (3) set on the test platform (1) for testing the durability of the hoisting mechanism (2) are included. The loading mechanism (3) includes a bracket (301), a lifting part (302) mounted on the bracket (301), and a loading part (303) connected between the lifting part (302) and the bracket (301). The loading part (303) is configured to apply a variable load to the hoisting mechanism (2), and the lifting part (302) is configured to transfer the load to the hoisting mechanism (2). The lifting part (302) is provided with a pressure sensor (304) that provides feedback on the load magnitude.

2. The outboard motor hoisting mechanism durability testing device according to claim 1, characterized in that, The loading part (303) includes a first electromagnet (3031) and a second electromagnet (3032) that are spaced apart and have repulsive magnetic poles. The first electromagnet (3031) is disposed on the top of the bracket (301), and the second electromagnet (3032) is disposed on the lifting part (302) and moves up and down synchronously with the lifting part (302).

3. The outboard motor hoisting mechanism durability testing device according to claim 1, characterized in that, The lifting part (302) is slidably connected to the bracket (301), the lifting mechanism (2) is connected to the lifting part (302), and the lifting mechanism (2) is located below the lifting part (302).

4. The outboard motor hoisting mechanism durability testing device according to claim 2, characterized in that, The lifting part (302) includes a lifting plate (3021) and connecting blocks (3022) disposed at opposite ends of the lifting plate (3021). The connecting blocks (3022) are provided with connecting shafts (3023) that are slidably connected to the bracket (301).

5. The outboard motor hoisting mechanism durability testing device according to claim 4, characterized in that, The bracket (301) includes a top plate (3011) and support plates (3012) disposed at both ends of the top plate (3011). The support plates (3012) are disposed on the test platform (1). The support plates (3012) are provided with a sliding groove (3013) disposed along the height direction of the support plates (3012). The connecting shaft (3023) is slidably connected in the sliding groove (3013).

6. The outboard motor hoisting mechanism durability testing device according to claim 5, characterized in that, The first electromagnet (3031) is disposed on the lower surface of the top plate (3011), and the second electromagnet (3032) is disposed on the lifting plate (3021), and the second electromagnet (3032) is located directly below the first electromagnet (3031).

7. The outboard motor hoisting mechanism durability testing device according to claim 4, characterized in that, The bottom of the lifting plate (3021) is provided with a lifting column (3024), which is located at opposite ends of the lifting plate (3021). The test platform (1) is provided with a base (305) for guiding the lifting column (3024) to lift.

8. The outboard motor hoisting mechanism durability testing device according to claim 7, characterized in that, The base (305) has guide portions (3051) on both sides, and guide holes (3052) are provided on the guide portions (3051) along the height direction of the base (305). The lifting column (3024) is slidably connected in the guide holes (3052).

9. The outboard motor hoisting mechanism durability testing device according to claim 4, characterized in that, The bottom of the lifting plate (3021) is provided with a hinge seat (306) for connecting the lifting mechanism (2), and the pressure sensor (304) is located between the hinge seat (306) and the lifting plate (3021).

10. The outboard motor hoisting mechanism durability testing device according to claim 1, characterized in that, The test platform (1) is provided with several mounting slots (101) arranged along the length of the test platform (1). The loading mechanism (3) and the lifting mechanism (2) are both connected to the mounting slots (101). The test platform (1) is also provided with a power supply (4) for power supply.

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