Overwater test bench for outboard engine

Abstract

The utility model discloses an outboard engine water test bench, comprising a buoyancy platform mechanism comprising a plurality of fixedly arranged columns and a floating platform slidably arranged on the columns, the floating platform floating on the water surface and moving up and down along the columns according to the height of the water surface, the floating platform is provided with a testing through groove for the outboard engine to penetrate through so as to be immersed in water. The lifting device is arranged on the periphery of the test through groove and comprises two lifting mechanisms which are oppositely arranged; the angle adjusting device is installed between the two lifting mechanisms, the angle adjusting device is in transmission connection with the two lifting mechanisms and is driven by the two lifting mechanisms to ascend and descend, and the outboard engine is installed on the angle adjusting device. The outboard engine overwater test bench provided by the utility model can simulate the actual test working condition of an outboard engine and improve the test precision and efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of outboard motor testing, in particular to an outboard motor water testing bench. Background Art

[0002] The reliability test and performance verification test of the outboard motor in the development stage require the testing of various parameters of the outboard motor in a real environment. The existing real environment testing conditions can only be achieved through shipboard sailing tests, which are labor-intensive, time-consuming, and difficult to test. Since the sailing tests have speed restrictions in lakes, rivers, and waters, and the personnel have high operational requirements, it is difficult to achieve real and effective test data.

[0003] Chinese patent CN116973113A discloses an outboard motor test system that uses a test water tank for testing. This system cannot simulate the actual working conditions of water levels in rivers, lakes, and the sea, cannot collect real and valuable test data, and cannot simulate actual test conditions. Utility Model Content

[0004] Based on the above problems, the purpose of the present invention is to provide an outboard motor water test bench that can simulate real test conditions.

[0005] In order to solve the problems in the prior art, the technical solution provided by the present invention is:

[0006] An outboard motor water test bench, comprising:

[0007] The buoyancy platform mechanism includes a plurality of fixed columns and a floating platform slidably mounted on the columns. The floating platform floats on the water surface and moves up and down along the columns according to the water level. The floating platform is provided with a test slot for the outboard motor to pass through and be submerged in water.

[0008] A lifting device, which is arranged on the periphery of the test slot and includes two lifting mechanisms arranged opposite to each other;

[0009] An angle adjustment device is installed between the two lifting mechanisms. The angle adjustment device is in transmission connection with the two lifting mechanisms and is lifted and lowered under the drive of the two lifting mechanisms. The outboard motor is installed on the angle adjustment device.

[0010] Furthermore, the lifting mechanism includes a lifting bracket, a guide rail assembly installed on the lifting bracket and extending in a vertical direction, and a lifting drive assembly installed on the lifting bracket, and the angle adjustment device is slidably connected to the lifting bracket via the guide rail assembly.

[0011] Furthermore, the lifting drive assembly is a bevel gear elevator, one end of the screw rod of the bevel gear elevator is fixed with a connecting flange, and the angle adjustment device is fixedly connected to the connecting flange.

[0012] Furthermore, the lifting bracket includes two symmetrically arranged L-shaped support plates, multiple L-shaped frames fixed on the L-shaped support plates, reinforcing ribs fixed on the L-shaped frames, and a connecting plate fixed on the upper ends of the two L-shaped support plates, and the lifting drive assembly is installed on the connecting plate.

[0013] Furthermore, the angle adjustment device includes a rotating shaft, a rotating arm assembly fixed on the rotating shaft, and an angle adjustment mechanism arranged at both axial ends of the rotating shaft, and the outboard motor is installed on the rotating arm assembly.

[0014] Furthermore, the angle adjustment mechanism includes a gear box slidably connected to the lifting bracket, a drive shaft rotatably arranged in the gear box, a drive gear fixed on the drive shaft, a driven gear meshing with the drive gear, and an angle plate assembly that limits the rotation angle of the drive shaft. The two ends of the rotating shaft are rotatably arranged on two gear boxes, and the driven gear is fixed on the rotating shaft.

[0015] Furthermore, at least one of the drive shafts is connected to a drive handwheel.

[0016] Furthermore, the angle plate assembly includes an angle plate and an angle limit pin fixed to the side of the gear box close to the rotating arm assembly. A plurality of sockets are provided on the angle plate along the rotation direction of the rotating shaft. The angle limit pin is removably arranged in the socket to limit the angle of the rotating shaft.

[0017] Furthermore, a safety guardrail is provided on the circumference of the floating platform.

[0018] Furthermore, the floating platform is provided with a through-hole for the column to pass through, and a sliding guide mechanism is provided in the through-hole. The sliding guide mechanism includes a plurality of roller assemblies arranged along the circumference of the through-hole.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The buoyancy platform mechanism can automatically adjust the height of the floating platform according to the outboard engine speed, water surface and surge height. It not only protects the safety of the engine during the rise and fall of the water level, but also simulates real test conditions, so that the outboard engine can be tested in rivers, lakes, oceans, medium, high and low speeds according to different test conditions;

[0021] 2. It can simulate the working conditions on water and automatically raise and lower the floating platform to simulate the more complex test conditions on water. It can automatically raise and lower the test platform according to the water level to achieve high speed and high torque conditions. It has high working efficiency, stable operation, convenient operation and high safety.

[0022] 3. The lifting device and angle adjustment device can adjust the outboard motor's draft depth and angle to simulate the outboard motor's water test conditions and facilitate position adjustment during engine maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a structural schematic diagram of an embodiment of an outboard motor water test bench according to the present utility model;

[0025] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0026] Figure 3 This is a schematic diagram of the disassembled structure of an embodiment of the utility model;

[0027] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0028] Figure 5 This is a structural diagram of the lifting mechanism in an embodiment of the present utility model;

[0029] Figure 6 This is a structural diagram of the angle adjustment device in an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the installation structure of the outboard motor in an embodiment of the present utility model;

[0031] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0032] in:

[0033] 1. Buoyancy platform mechanism; 1-1. Column; 1-1a. Limiting component; 1-2. Floating platform; 1-2a. Test slot; 1-2b. Fixing bracket; 1-2c. Perforation; 1-3. Roller assembly; 1-3a. Roller bracket; 1-3b. Roller; 1-4. Safety guardrail;

[0034] 2. Lifting mechanism; 2-1. Lifting bracket; 2-1a. L-shaped support plate; 2-1b. L-shaped frame; 2-1c. Reinforcement ribs; 2-1d. Connecting plate; 2-2. Lifting drive assembly; 2-2a. Screw rod; 2-2b. Connecting flange; 2-2c. Drive motor; 2-3. Guide rail assembly; 2-4. Connecting rod;

[0035] 3. Angle adjustment device; 3-1. Rotating shaft; 3-2. Rotating arm assembly; 3-2a. First rotating arm; 3-2b. Second rotating arm; 3-3. Angle adjustment mechanism; 3-3a. Gearbox; 3-3b. Drive shaft; 3-3c. Drive gear; 3-3d. Driven gear; 3-3e. Angle plate; 3-3e1. Socket; 3-3f. Angle limit pin; 3-3g. Drive handwheel;

[0036] 4. Outboard motor. DETAILED DESCRIPTION

[0037] The above scheme is further described below with reference to specific examples. It should be understood that these examples are intended to illustrate the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer. The implementation conditions not specified are generally those used in routine experiments.

[0038] See also Figure 1 and Figure 3 , is a structural schematic diagram of an embodiment of the present utility model, which provides an outboard motor water test bench, including a buoyancy platform mechanism 1, a lifting device installed on the buoyancy platform mechanism 1, and an angle adjustment device 3 installed on the lifting device. The outboard motor 4 is installed on the angle adjustment device 3. The draft angle of the outboard motor 4 is adjusted by the angle adjustment device 3. The height of the angle adjustment device 3 is adjusted by the lifting device to adjust the draft depth of the outboard motor 4. The buoyancy platform mechanism 1 can automatically adjust its height according to the speed of the outboard motor 4, the water surface, and the height of the surge.

[0039] The buoyancy platform mechanism 1 includes a plurality of columns 1-1 fixedly set in the water and a floating platform 1-2 slidably set on the plurality of columns 1-1. The floating platform 1-2 is made of polyethylene material. It can float on the water surface and move up and down along the plurality of columns 1-1 according to the water surface height. A test groove 1-2a is provided on the floating platform 1-2 for the outboard motor 4 to pass through and be immersed in the water.

[0040] In this example, the floating platform 1-2 is a rectangular plate structure. Accordingly, four columns 1-1 are fixed in the water. The four columns are respectively arranged at the top corners of the floating platform 1-2. A limiting component 1-1a is provided on the top of the column 1-1 to limit the floating platform 1-2 on the column 1-1 to prevent the floating platform 1-2 from separating from the column 1-1 when the water depth is large.

[0041] In order to facilitate the installation of the lifting device, a fixing bracket 1-2b is fixed on the floating platform 1-2. The fixing bracket 1-2b is a frame structure composed of profiles and is fixed to the floating platform 1-2 by screws.

[0042] In order to facilitate installation and maintenance of the test bench, safety guardrails 1-4 are provided on the circumference of the floating platform 1-2 to improve safety.

[0043] In order to facilitate the sliding fit between the floating platform 1-2 and the column 1-1, as shown in FIG. Figure 4 As shown, a through hole 1-2c is provided on the floating platform 1-2 for the column 1-1 to pass through, and a sliding guide mechanism is provided in the through hole 1-2c. The sliding guide mechanism includes a plurality of roller assemblies 1-3 arranged along the circumference of the through hole 1-2c. The roller assembly 1-3 includes a roller bracket 1-3a fixed to the inner wall of the through hole 1-2c and a roller 1-3b rotatably arranged on the roller bracket 1-3a. The roller 1-3b is in rolling cooperation with the column 1-1.

[0044] like Figure 2 As shown, the lifting device is disposed on the periphery of the test slot 1-2a and includes two lifting mechanisms 2 disposed opposite each other. Specifically, the lifting mechanism 2 includes a lifting bracket 2-1, a guide rail assembly 2-3 mounted on the lifting bracket 2-1 and extending vertically, and a lifting drive assembly 2-2 mounted on the lifting bracket 2-1. The angle adjustment device 3 is slidably connected to the lifting bracket 2-1 via the guide rail assembly 2-3.

[0045] In this example, the lifting drive component 2-2 is a bevel gear elevator. The bevel gear elevator is a prior art and will not be described in detail in this utility model. A connecting flange 2-2b is fixed to one end of the screw rod 2-2a of the bevel gear elevator. The angle adjustment device 3 is fixedly connected to the connecting flange 2-2b. The screw rod 2-2a is driven to rise and fall by the driving motor 2-2c, thereby driving the angle adjustment device 3 to rise and fall, and then driving the outboard motor 4 to rise and fall.

[0046] like Figure 5 As shown, the lifting bracket 2-1 includes two symmetrically arranged L-shaped support plates 2-1a, multiple L-shaped skeletons 2-1b fixed on the L-shaped support plates 2-1a, reinforcing ribs 2-1c fixed on the L-shaped skeletons 2-1b, and connecting plates 2-1d fixed on the upper ends of the two L-shaped support plates 2-1a, and the lifting drive assembly 2-2 is installed on the connecting plate 2-1d.

[0047] In order to improve the strength of the structure, a connecting rod assembly is connected between the two lifting brackets 2-1. The connecting rod assembly may include two connecting rods 2-4 arranged in parallel up and down.

[0048] The guide rail assembly 2-3 is installed on the L-shaped support plate 2-1a, including two slide rails installed on each L-shaped support plate 2-1a. At the same time, a slider that cooperates with the guide rail is provided on the angle adjustment device 3. The sliding cooperation between the angle adjustment device 3 and the lifting bracket 2-1 is realized through the cooperation between the slider and the slide rail.

[0049] like Figure 6 As shown, the angle adjustment device 3 includes a rotating shaft 3-1, a pivot arm assembly 3-2 fixed to the rotating shaft 3-1, and angle adjustment mechanisms 3-3 disposed at both ends of the rotating shaft 3-1. The outboard motor 4 is mounted on the pivot arm assembly 3-2. The pivot arm assembly 3-2 includes a first pivot arm 3-2a extending axially along the rotating shaft 3-1 and a second pivot arm 3-2b fixed to the middle of the first pivot arm 3-2a. The outboard motor 4 is fixedly connected to the second pivot arm 3-2b. A connecting seat can be provided on one side of the first pivot arm 3-2a. The rotating shaft 3-1 is inserted into the connecting seat and has an interference fit with the connecting seat to achieve a fixed connection between the rotating shaft 3-1 and the first pivot arm 3-2a. The second pivot arm 3-2b can be screwed to the first pivot arm 3-2a.

[0050] like Figure 7 and Figure 8 As shown, the angle adjustment mechanism 3-3 includes a gearbox 3-3a slidably connected to the lifting bracket 2-1, a drive shaft 3-3b rotatably mounted within the gearbox 3-3a, a drive gear 3-3c fixed to the drive shaft 3-3b, a driven gear 3-3d meshing with the drive gear 3-3c, and an angle plate assembly that limits the rotation angle of the drive shaft 3-3b. The two ends of the rotating shaft 3-1 are rotatably mounted on the two gearboxes 3-3a of the two angle adjustment mechanisms 3-3, while the driven gear 3-3d is fixed to the rotating shaft 3-1. The drive gear 3-3c is a small gear, and the driven gear 3-3d is a large gear. Specifically, the drive shaft 3-3b and the rotating shaft 3-1 are each supported on the gearbox 3-1a via bearings. When the drive shaft 3-3b rotates, the drive gear 3-3c drives the driven gear 3-3d to rotate, thereby driving the rotating shaft 3-1 to adjust the draft angle of the outboard motor 4.

[0051] In order to facilitate the rotation of the driving shaft 3-3b, at least one driving shaft 3-3b is connected to a driving handwheel 3-3g, and the driving shaft 3-3b is extended to the outside of the gear box 3-3a and connected to the driving handwheel 3-3g.

[0052] The angle plate assembly includes an angle plate 3-3e fixed to the side of the gearbox 3-3a near the pivot arm assembly 3-2 and an angle stop pin 3-3f. The angle plate 3-3e is provided with multiple sockets 3-3e1 along the rotation direction of the rotating shaft 3-1. The angle stop pins 3-3f are removably mounted within the sockets 3-3e1 and engage the pivot arm assembly 3-2 to limit the angle of the rotating shaft 3-1. To adjust the draft angle of the outboard motor 4, the two angle stop pins 3-3f are removed. Once the angle adjustment is complete, the angle stop pins 3-3f are used to limit the angle.

[0053] The working principle of this utility model is:

[0054] Several columns 1-1 are fixed in the water, and then the floating platform 1-2 is installed on the several columns 1-1. The draft depth and draft angle of the outboard motor 4 can be adjusted through the lifting device and angle adjustment device 3 on the floating platform 1-2 to meet the requirements of different test conditions. The floating platform 1-2 can automatically adjust its height according to the speed of the outboard motor 4, the water surface and the surge height to simulate real test conditions.

[0055] In summary, the test bench can simulate real test conditions and improve test accuracy and efficiency.

[0056] The above examples are intended only to illustrate the technical concepts and features of this utility model. Their purpose is to enable those familiar with the art to understand the content of this utility model and implement it accordingly. They are not intended to limit the scope of protection of this utility model. Any equivalent changes or modifications based on the spirit of this utility model shall be included in the scope of protection of this utility model.

Claims

1. An outboard motor water test bench, characterized in that: include: The buoyancy platform mechanism includes a plurality of fixed columns and a floating platform slidably mounted on the columns. The floating platform floats on the water surface and moves up and down along the columns according to the water level. The floating platform is provided with a test slot for the outboard motor to pass through and be submerged in water. A lifting device, which is arranged on the periphery of the test slot and includes two lifting mechanisms arranged opposite to each other; An angle adjustment device is installed between the two lifting mechanisms. The angle adjustment device is in transmission connection with the two lifting mechanisms and is lifted and lowered under the drive of the two lifting mechanisms. The outboard motor is installed on the angle adjustment device.

2. The outboard motor water test bench according to claim 1, characterized in that: The lifting mechanism includes a lifting bracket, a guide rail assembly installed on the lifting bracket and extending in a vertical direction, and a lifting drive assembly installed on the lifting bracket. The angle adjustment device is slidably connected to the lifting bracket via the guide rail assembly.

3. The outboard motor water test bench according to claim 2, characterized in that: The lifting drive assembly is a bevel gear elevator, one end of the screw rod of the bevel gear elevator is fixed with a connecting flange, and the angle adjustment device is fixedly connected to the connecting flange.

4. The outboard motor water test bench according to claim 2, characterized in that: The lifting bracket includes two symmetrically arranged L-shaped support plates, multiple L-shaped frames fixed on the L-shaped support plates, reinforcing ribs fixed on the L-shaped frames, and a connecting plate fixed on the upper ends of the two L-shaped support plates, and the lifting drive assembly is installed on the connecting plate.

5. The outboard motor water test bench according to claim 2, characterized in that: The angle adjustment device includes a rotating shaft, a rotating arm assembly fixed on the rotating shaft, and angle adjustment mechanisms arranged at both axial ends of the rotating shaft. The outboard motor is installed on the rotating arm assembly.

6. The outboard motor water test bench according to claim 5, characterized in that: The angle adjustment mechanism includes a gear box slidably connected to the lifting bracket, a drive shaft rotatably arranged in the gear box, a drive gear fixed on the drive shaft, a driven gear meshing with the drive gear, and an angle plate assembly that limits the rotation angle of the drive shaft. The two ends of the rotating shaft are rotatably arranged on two gear boxes, and the driven gear is fixed on the rotating shaft.

7. The outboard motor water test bench according to claim 6, characterized in that: At least one of the drive shafts is connected to a drive handwheel.

8. The outboard motor water test bench according to claim 6, characterized in that: The angle plate assembly includes an angle plate and an angle limit pin fixed to the side of the gear box close to the rotating arm assembly. A plurality of sockets are provided on the angle plate along the rotation direction of the rotating shaft. The angle limit pin is detachably arranged in the socket and abuts against the rotating arm assembly to limit the angle of the rotating shaft.

9. The outboard motor water test bench according to claim 1, characterized in that: A safety guardrail is provided on the circumference of the floating platform.

10. The outboard motor water test bench according to claim 1, characterized in that: The floating platform is provided with a through-hole for the column to pass through, and a sliding guide mechanism is provided in the through-hole. The sliding guide mechanism includes a plurality of roller assemblies arranged along the circumference of the through-hole.

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