An outboard motor testing system

Abstract

The application discloses an outboard motor testing system, which comprises a water tank, a supporting device for supporting the outboard motor above the water tank, two height adjusting mechanisms installed on the supporting frame, a turnover mechanism installed on the height adjusting mechanisms, a crossbeam installed between the two turnover mechanisms, a clamping device arranged in the water tank for clamping and fixing the testing end of the outboard motor, and a dynamometer arranged outside the water tank and connected with the propeller shaft of the outboard motor through a transmission shaft mechanism. The outboard motor testing system can improve the testing precision and efficiency.

Description

Technical Field

[0001] This invention relates to the field of outboard motor testing technology, and in particular to an outboard motor testing system. Background Technology

[0002] In recent years, with the rapid development of the domestic and foreign boat industry, the accuracy of test data such as power, torque and emissions of outboard motors has become increasingly stringent. The whole machine test is more intuitive through the connection of the propeller shaft and the dynamometer. The bench test can accurately read the consistent and accurate values ​​of power, torque and emissions through the test equipment. The premise is that there is a better outboard motor test bench system. Outboard motors complete various test verifications through the bench test system.

[0003] When the existing outboard motor test bench is in operation, due to structural reasons, the stability of the bench cannot be guaranteed, and alignment cannot be achieved through adjustment. It has the following defects: the test bench is unstable; it vibrates violently, is prone to shaft breakage, and easily damages the transmission components at the engine end and dynamometer end; the test data does not meet the ideal requirements, making calibration tests difficult and causing delays to development projects.

[0004] The present invention was developed to address the aforementioned problems. Summary of the Invention

[0005] In view of the above problems, the purpose of this invention is to provide an outboard motor testing system that can improve testing accuracy and efficiency.

[0006] To address the problems in the prior art, the technical solution provided by this invention is as follows:

[0007] An outboard motor testing system, comprising:

[0008] Water tank;

[0009] A support device for supporting an outboard motor above the water tank includes a support frame, two height adjustment mechanisms mounted on the support frame, a tilting mechanism mounted on the height adjustment mechanism, and a crossbeam mounted between the two tilting mechanisms, wherein the outboard motor is mounted on the crossbeam.

[0010] A clamping device, which is installed inside the water tank, is used to clamp and fix the test end of the outboard motor;

[0011] A dynamometer is installed outside the water tank, and the propeller shaft of the outboard motor is connected to the dynamometer via a drive shaft mechanism.

[0012] Furthermore, the height adjustment mechanism includes a support leg and an adjustment screw rotatably mounted on the support leg and arranged in a vertical direction. The flipping mechanism is connected to the adjustment screw in a transmission manner, and a locking assembly is provided on the side of the support leg to lock the flipping mechanism.

[0013] Furthermore, the flipping mechanism includes a support component threadedly connected to the adjusting screw, a first support shaft and a second support shaft rotatably mounted on the support component and with their axes parallel to each other, a first gear and an angle adjusting block mounted on the first support shaft, a second gear mounted on the second support shaft, a flipping component fixedly connected to the second support shaft, and a manual adjusting component for driving the angle adjusting block to rotate. The second gear meshes with the first gear, and the flipping component is fastened to the support component by an angle fixing member.

[0014] Furthermore, the support component includes a first support plate and a second support plate arranged opposite to each other, and a third support plate connecting the first support plate and the second support plate, wherein the third support plate is threadedly connected to the adjusting screw.

[0015] The locking assembly includes a locking plate arranged opposite to the second support plate and a locking member that locks the locking plate to the second support plate.

[0016] The flipping component includes a flipping plate disposed opposite to the first support plate and a connecting part connecting the flipping plate and the crossbeam, and an accommodating space for accommodating the first gear and the second gear is formed between the flipping plate and the first support plate.

[0017] The manual adjustment component includes a handle that is rotatably mounted on the first support plate, one end of which abuts against the angle adjustment block and the other end of which is provided with a hand crank.

[0018] Furthermore, the upper end of the first support plate is provided with an angle display component, and the upper end of the flip plate is provided with an angle indicator component.

[0019] Furthermore, the transmission shaft mechanism includes a transmission shaft, a drive key connected to one axial end of the transmission shaft, and a diaphragm flange and a first connecting flange connected to the other axial end of the transmission shaft. Elastic diaphragms are respectively provided between the drive key and the transmission shaft, and between the diaphragm flange and the transmission shaft.

[0020] Furthermore, the clamping device includes a first adjusting component movably mounted relative to the water tank in a first direction, a second adjusting component movably mounted relative to the first adjusting component along a second direction of the water tank, and a clamping mechanism fixed on the second adjusting component, wherein the first direction and the second direction are perpendicular to each other.

[0021] Furthermore, the clamping mechanism includes a clamping frame, at least one set of gripper assemblies mounted on the clamping frame, and a fine-tuning assembly connecting the gripper assemblies and the clamping frame. The gripper assembly includes two grippers arranged opposite to each other. The fine-tuning assembly includes an adjusting plate that is movable relative to the clamping frame in the vertical and horizontal directions, a connecting bolt connecting the grippers and the adjusting plate, and a pressure plate pressed against the outside of the adjusting plate.

[0022] Furthermore, the clamping frame is provided with two sets of gripper assemblies, and the clamping frame is provided with through slots for the two connecting bolts of the two sets of gripper assemblies to extend out. The adjusting plate is provided with two first adjusting slots arranged vertically and extending in the vertical direction, and the pressure plate is provided with two second adjusting slots arranged at intervals in the horizontal direction. The connecting bolts pass through the first adjusting slots and the second adjusting slots.

[0023] Furthermore, it also includes a flue gas and water discharge device, which includes a flue gas and water discharge housing, an expansion flange connecting the flue gas and water discharge housing to the outboard motor shaft, and a second connecting flange connecting the flue gas and water discharge housing to the water tank. The drive shaft mechanism passes through the flue gas and water discharge housing. The upper end of the flue gas and water discharge housing is provided with a flue gas pipe, and the lower end of the flue gas and water discharge housing is provided with a drain outlet.

[0024] Compared with the prior art, the advantages of the present invention are:

[0025] 1. The support device can securely attach the outboard motor, and can be adjusted up and down, left and right, forward and backward, and tilt angle, so as to achieve precise and rapid alignment between the outboard motor and the dynamometer, effectively solving the problems of test bench vibration, broken shaft, and damaged parts, and improving test accuracy and efficiency;

[0026] 2. The clamping device can be adjusted forward and backward and left and right inside the water tank, which makes it easier for the grippers to lock the outboard motor underwater, effectively solving problems such as vibration and shaft breakage under high speed and high torque conditions of the test bench, and improving equipment and personal safety;

[0027] 3. A flue gas exhaust device is installed. The transmission shaft mechanism is located inside the flue gas exhaust device and forms a seal with the water tank cooling water to prevent the water tank cooling water from flowing into the water-air separator. The flue gas exhaust device uses the principle that water is heavier than air to discharge air through the exhaust pipe and water through the drain outlet at the bottom, thereby achieving the sealing of the water tank, transmission mechanism, water, and exhaust gas.

[0028] 4. An elastic diaphragm is installed in the structure of the drive shaft mechanism to buffer the vibration transmitted from the engine, avoid problems such as shaft breakage and abnormal noise, and improve the service life of the rotating shaft. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is one of the structural schematic diagrams of an embodiment of an outboard motor testing system according to the present invention;

[0031] Figure 2 This is a second structural schematic diagram of an embodiment of the present invention;

[0032] Figure 3 This is the third structural schematic diagram of an embodiment of the present invention;

[0033] Figure 4 for Figure 3 Schematic diagram of the AA section;

[0034] Figure 5 for Figure 4 Enlarged view of a section at point I;

[0035] Figure 6 This is one of the structural schematic diagrams of the support device in an embodiment of the present invention;

[0036] Figure 7 This is a second schematic diagram of the support device in an embodiment of the present invention;

[0037] Figure 8 This is one of the structural schematic diagrams of the height adjustment mechanism and the flipping structure in an embodiment of the present invention;

[0038] Figure 9 This is a second schematic diagram of the height adjustment mechanism and the flipping structure in an embodiment of the present invention;

[0039] Figure 10 This is the third schematic diagram of the height adjustment mechanism and the flipping structure in the embodiments of the present invention;

[0040] Figure 11 for Figure 10 Schematic diagram of the BB cross section;

[0041] Figure 12 for Figure 10 Schematic diagram of the CC section;

[0042] Figure 13 This is a schematic diagram of the flipping structure in an embodiment of the present invention;

[0043] Figure 14 This is one of the structural schematic diagrams of the clamping device in an embodiment of the present invention;

[0044] Figure 15 This is a second schematic diagram of the clamping device in an embodiment of the present invention;

[0045] Figure 16 This is a schematic diagram of the clamping mechanism in an embodiment of the present invention;

[0046] Figure 17 This is a schematic diagram of the cooperation structure between the clamping mechanism and the outboard motor in an embodiment of the present invention;

[0047] Figure 18 This is a schematic diagram of the transmission shaft mechanism in an embodiment of the present invention;

[0048] Figure 19 for Figure 18 Schematic diagram of the DD section;

[0049] in:

[0050] 1. Support device; 1-1. Bracket; 1-2. Support leg; 1-3. Adjusting screw; 1-4. Support component; 1-4a. First support plate; 1-4b. Second support plate; 1-4c. Third support plate; 1-5. Flipping component; 1-5a. Flipping plate; 1-5b. Connecting part; 1-6. First support shaft; 1-7. Second support shaft; 1-8. Angle adjusting block; 1-9. First gear; 1-10. Second gear; 1-11. Angle fixing component; 1-12. Locking plate; 1-13. Support part; 1-14. Manual adjustment component; 1-15. Angle display component; 1-16. Angle indicator component; 1-17. Reinforcing component; 1-18. Crossbeam; 1-19. Connecting plate;

[0051] 2. Water tank;

[0052] 3. Clamping device; 3-1. First adjusting component; 3-1a. First adjusting hole; 3-2. Second adjusting component; 3-2a. Second adjusting hole; 3-3. Clamping frame; 3-3a. Through slot; 3-4. Gripper; 3-5. Connecting bolt; 3-6. Adjusting plate; 3-6a. First adjusting groove; 3-7. Pressure plate; 3-7a. Second adjusting groove;

[0053] 4. Dynamometer;

[0054] 5. Drive shaft mechanism; 5-1. Drive shaft; 5-2. Drive key; 5-3. Diaphragm flange; 5-4. First connecting flange; 5-5. Elastic diaphragm;

[0055] 6. Flue gas and wastewater discharge device; 6-1. Flue gas and wastewater discharge shell; 6-2. Expansion flange; 6-3. Second connecting flange; 6-4. Exhaust pipe; 6-5. Drain outlet;

[0056] 7. Base; 7-1. Slide groove;

[0057] 8. Outboard motor;

[0058] 9. Clamping assembly; 9-1. Clamping block; 9-2. Clamping bolt. Detailed Implementation

[0059] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0060] See Figures 1 to 3 The diagram below is a structural schematic of an embodiment of the present invention. An outboard motor testing system is provided, including a base 7, a water tank 2 detachably mounted on the base 7, a support device 1 detachably mounted on the base 7, and a dynamometer 4 mounted on the base 7. The outboard motor 8 is fixed above the water tank 2 by the support device 1, and the test end is fixed inside the water tank 2 by the clamping device 3. The performance parameters of the outboard motor are tested by the dynamometer 4.

[0061] The base 7 is provided with multiple inverted T-shaped grooves 7-1 extending along the length direction. The water tank 2 and the support device 1 are respectively fixed in the grooves 7-1 by bolts. During testing, the positions of the water tank 2 and the support device 1 can be adjusted as needed.

[0062] Support device 1 is used to support the outboard motor 8 above the water tank 2, such as Figure 6 and Figure 7 As shown, the support device 1 includes a support frame, two height adjustment mechanisms mounted on the support frame, a tilting mechanism mounted on the height adjustment mechanisms, and a crossbeam 1-18 mounted between the two tilting mechanisms. The outboard motor 8 is mounted on the crossbeam 1-18 via a connecting plate 1-19. The connection between the connecting plate 1-19 and the crossbeam 1-18 is position-adjustable, for example, by providing multiple strip-shaped mounting slots extending along the length direction on the crossbeam 1-18. The connecting plate 1-19 is fixed to the crossbeam by bolts and mounting slots. The height of the crossbeam 1-18 can be adjusted by the height adjustment mechanisms, and the fore-and-aft angle of the crossbeam 1-18 can be adjusted by the tilting mechanisms, thereby adjusting the height and angle of the outboard motor 8 to facilitate precise docking and transmission between the outboard motor 8 and the dynamometer 4, improving testing efficiency.

[0063] The support frame includes two opposing brackets 1-1. The height adjustment mechanism is connected to the brackets 1-1 on both sides via reinforcing members 1-17 to ensure the stability of the height adjustment mechanism. To improve the stability of the support frame, clamping assemblies 9 are provided on both sides of the brackets 1-1. Each clamping assembly 9 includes a clamping block 9-1 detachably fixed in a slide groove 7-1 and clamping bolts 9-2 provided on the clamping block 9-1. By adjusting the position of the clamping bolts 9-2 on both sides, the clamping bolts 9-2 abut against the brackets 1-1, thereby clamping and fixing the brackets 1-1.

[0064] like Figures 8 to 13 As shown, the height adjustment mechanism includes a support leg 1-2 and an adjustment screw 1-3 rotatably mounted on the support leg 1-2 and arranged in the vertical direction. The flipping mechanism is connected to the adjustment screw 1-3 in a transmission manner. The side of the support leg 1-2 is provided with a locking assembly to lock the flipping mechanism. By rotating the adjustment screw 1-3, the flipping mechanism is driven to move up and down in the vertical direction to adjust the height of the outboard motor 8.

[0065] The flipping mechanism includes a support component 1-4 threadedly connected to the adjusting screw 1-3, a first support shaft 1-6 and a second support shaft 1-7 rotatably mounted on the support component 1-4 with their axes parallel to each other, a first gear 1-9 and an angle adjusting block 1-8 mounted on the first support shaft 1-6, a second gear 1-10 mounted on the second support shaft 1-7, a flipping component 1-5 fixedly connected to the second support shaft 1-7, and a manual adjusting component 1-14 for driving the angle adjusting block 1-8 to rotate. The first gear 1-9 and the second gear 1-10 mesh with each other. The flipping component 1-5 is fastened to the support component 1-4 via an angle fixing member 1-11. The flipping component 1-5 is provided with an arc-shaped angle adjusting groove into which the angle fixing member 1-11 extends. The angle adjusting block 1-8 is driven to rotate by the manual adjusting component 1-14, which in turn drives the first gear 1-9 to rotate via the first support shaft 1-6. The second gear 1-10 follows the first gear 1-9 to rotate, thereby driving the flipping component 1-5 to rotate, thus realizing the adjustment of the front and rear angles of the crossbeam 1-18.

[0066] The supporting component 1-4 includes a first supporting plate 1-4a and a second supporting plate 1-4b arranged opposite to each other, and a third supporting plate 1-4c connecting the first supporting plate 1-4a and the second supporting plate 1-4b. The third supporting plate 1-4c is threadedly connected to the adjusting screw 1-3. The angle adjusting block 1-8 and the first gear 1-9 are arranged on both sides of the thickness direction of the first supporting plate 1-4a. In this example, the first supporting plate 1-4a and the second supporting plate 1-4b are arranged in the vertical direction, and the third supporting plate 1-4c extends in the horizontal direction.

[0067] The flipping component 1-5 includes a flipping plate 1-5a disposed opposite to the first support plate 1-4a and a connecting part 1-5b connecting the flipping plate 1-5a and the crossbeam 1-18. An accommodating space for accommodating the first gear 1-9 and the second gear 1-10 is formed between the flipping plate 1-5a and the first support plate 1-4a.

[0068] The locking assembly includes a locking plate 1-12 arranged opposite to the second support plate 1-4b and a locking member that locks the locking plate 1-12 to the second support plate 1-4b. The locking member can be a screw. The second support plate 1-4b is locked in a certain position by the locking member, thereby locking the outboard motor 8 at a certain height.

[0069] The manual adjustment component 1-14 includes a handle rotatably mounted on the first support plate 1-4a. One end of the handle abuts against the angle adjustment block 1-8, and the other end is provided with a hand crank. In this example, a support part 1-13 is provided on the first support plate 1-4a. The handle is threadedly connected to the support part 1-13. The hand crank drives the handle to rotate, adjusting the distance between the handle and the angle adjustment block 1-8, thereby driving the angle adjustment block 1-8 to rotate and thus achieving angle adjustment.

[0070] To facilitate clear indication of the angle adjustment value and improve the adjustment accuracy, an angle display component 1-15 is provided on the upper end of the first support plate 1-4a, and an angle indicator component 1-16 is provided on the flip plate 1-5a. Specifically, the angle display component 1-15 is provided with a scale of circumferential angle, and the angle indicator component 1-16 is provided with a pointer. When the flip component 1-5 rotates, the pointer indicates the corresponding angle scale, thereby realizing precise indication of the angle adjustment.

[0071] Clamping device 3, located inside water tank 2, is used to clamp and fix the test end of outboard motor 8, such as... Figure 14 and Figure 15 As shown, the clamping device 3 includes a first adjusting component 3-1 that is movably installed relative to the water tank 2 in a first direction, a second adjusting component 3-2 that is movably installed relative to the first adjusting component 3-1 along a second direction of the water tank 2, and a clamping mechanism fixed on the second adjusting component 3-2, wherein the first direction is the width direction of the water tank 2 and the second direction is the length direction of the water tank.

[0072] The first adjusting component 3-1 includes two mounting plates arranged in parallel. Each mounting plate has a first adjusting hole 3-1a extending along a first direction of the water tank. The mounting plate is fixed to a support inside the water tank 2 using bolts and the first adjusting hole 3-1a, thus adjusting the position of the clamping mechanism within the water tank 2 in the first direction. The second adjusting component 3-2 has a second adjusting hole 3-2a extending along a second direction of the water tank 2. The second adjusting component 3-2 is fixed to the mounting plate using bolts and the second adjusting hole 3-2a, thus adjusting the position of the clamping mechanism within the water tank 2 in the second direction.

[0073] like Figure 16 As shown, the clamping mechanism includes a clamping frame 3-3, two sets of gripper assemblies mounted on the clamping frame 3-3, and a fine-tuning assembly connecting the gripper assemblies and the clamping frame 3-3. The gripper assemblies include two opposing grippers 3-4, which are C-shaped and made of nylon. The fine-tuning assembly includes an adjusting plate 3-6 that is movable relative to the clamping frame 3-3 in both vertical and horizontal directions, connecting bolts 3-5 connecting the grippers 3-4 and the adjusting plate 3-6, and a pressure plate 3-7 pressed against the outside of the adjusting plate 3-6.

[0074] Specifically, the side wall of the clamping frame 3-3 has through slots 3-3a for the two connecting bolts 3-5 of the two sets of gripper assemblies to extend out. The adjusting plate 3-6 has two first adjusting slots 3-6a arranged vertically and extending vertically. The pressure plate 3-7 has two second adjusting slots 3-7a arranged horizontally and spaced apart. The connecting bolts 3-5 pass through the first adjusting slots 3-6a and the second adjusting slots 3-7a. After fine-tuning the position of the adjusting plate 3-6 in the vertical and horizontal directions, the two sets of gripper assemblies clamp the outboard motor 8. Then, the adjusting plate 3-6 is fastened to the clamping frame 3-3, and the connecting bolts 3-5 are tightened to press the pressure plate 3-7 firmly onto the adjusting plate 3-6. This completes the fine-tuning of the gripper assembly position, ensuring that the gripper assembly clamps the outboard motor 8 (e.g., ...). Figure 17 (As shown), to improve the stability of the outboard motor 8 test.

[0075] The dynamometer 4 is located outside the water tank 2 and rests on the base 7. The propeller shaft of the outboard motor 8 is connected to the dynamometer 4 via a transmission shaft mechanism 5. The dynamometer 4 is existing technology and will not be described in detail here.

[0076] To improve transmission stability and reduce vibration and shaft breakage during transmission, the structure of transmission shaft mechanism 5 was improved. Specifically, as follows: Figure 18 and Figure 19As shown, the drive shaft mechanism 5 includes a drive shaft 5-1, a drive key 5-2 connected to one axial end of the drive shaft 5-1, and a diaphragm flange 5-3 and a first connecting flange 5-4 connected to the other axial end of the drive shaft 5-1. The drive key 5-2 is fixedly connected to the propeller shaft of the outboard motor 8. The drive key 5-2 and the drive shaft 5-1 are connected by a flange, and an elastic diaphragm 5-5 is provided between the drive key flange and the drive shaft flange. An elastic diaphragm 5-5 is also provided between the diaphragm flange 5-3 and the drive shaft 5-1. The elastic diaphragm 5-5 can buffer the vibration brought by the engine, avoid shaft breakage and abnormal noise, and improve service life.

[0077] To achieve flue gas separation during outboard engine testing and avoid the hazards caused by trapped flue gas, a flue gas and water discharge device 6 is also installed, such as... Figure 5 As shown, the exhaust and water discharge device 6 includes an exhaust and water discharge housing 6-1, an expansion flange 6-2 connecting the exhaust and water discharge housing 6-1 to the outboard motor propeller shaft, and a second connecting flange 6-3 connecting the exhaust and water discharge housing 6-1 to the water tank 2. A drive shaft mechanism 5 passes through the exhaust and water discharge housing 6-1. An exhaust pipe 6-4 is located at the upper end of the exhaust and water discharge housing 6-1, and a drain outlet 6-5 is located at the lower end of the exhaust and water discharge housing 6-1. The exhaust gas generated by the outboard motor 8 is separated in the exhaust and water discharge device 6, facilitating the testing of exhaust gas and drainage, and reducing exhaust back pressure and water tank 2 leakage problems. The expansion flange 6-2 is connected to the outboard motor propeller shaft via a tensioning principle.

[0078] The working principle of this invention is as follows:

[0079] Adjust the position of the support frame on the base 7 and clamp it in place with the clamping assembly 9 to align the outboard motor 8 with the dynamometer 4. Install the outboard motor 8 on the crossbeam 1-18, ensuring that the propeller shaft of the outboard motor 8 aligns with the dynamometer 4. Rotate the adjusting screw 1-3 to move the height adjustment mechanism to a suitable height and lock it with the locking assembly. Adjust the front and rear angles of the crossbeam 1-18 with the manual adjusting component 1-14 to achieve precise transmission between the outboard motor 8 and the dynamometer 4. Adjust the position of the clamping mechanism in the first and second directions within the water tank 2 to secure the outboard motor 8 and ensure the stability of the test. Connect the propeller shaft of the outboard motor 8 to the dynamometer 4 via the transmission shaft mechanism 5 to begin the power test. During the test, exhaust gas and drainage can also be tested.

[0080] The above examples are merely illustrative of the technical concept and features of the present invention, intended to enable those skilled in the art to understand the content of the invention and implement it accordingly, and should not be construed as limiting the scope of protection of the present invention. All equivalent transformations or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An outboard motor testing system, characterized in that, include: Water tank; A support device for supporting an outboard motor above the water tank includes a support frame, two height adjustment mechanisms mounted on the support frame, a tilting mechanism mounted on the height adjustment mechanism, and a crossbeam mounted between the two tilting mechanisms, wherein the outboard motor is mounted on the crossbeam. A clamping device, which is installed inside the water tank, is used to clamp and fix the test end of the outboard motor; A dynamometer is installed outside the water tank, and the propeller shaft of the outboard motor is connected to the dynamometer via a drive shaft mechanism; The height adjustment mechanism includes a support leg and an adjustment screw rotatably mounted on the support leg and arranged in the vertical direction. The flipping mechanism is connected to the adjustment screw in a transmission manner. The side of the support leg is provided with a locking component to lock the flipping mechanism. The flipping mechanism includes a support component threadedly connected to the adjusting screw, a first support shaft and a second support shaft rotatably mounted on the support component and with their axes parallel to each other, a first gear and an angle adjusting block mounted on the first support shaft, a second gear mounted on the second support shaft, a flipping component fixedly connected to the second support shaft, and a manual adjusting component for driving the angle adjusting block to rotate. The second gear meshes with the first gear, and the flipping component is fastened to the support component by an angle fixing member. The support component includes a first support plate and a second support plate arranged opposite to each other, and a third support plate connecting the first support plate and the second support plate, wherein the third support plate is threadedly connected to the adjusting screw. The locking assembly includes a locking plate arranged opposite to the second support plate and a locking member that locks the locking plate to the second support plate. The flipping component includes a flipping plate disposed opposite to the first support plate and a connecting part connecting the flipping plate and the crossbeam, and an accommodating space for accommodating the first gear and the second gear is formed between the flipping plate and the first support plate. The manual adjustment component includes a handle that is rotatably mounted on the first support plate, one end of the handle abutting against the angle adjustment block and the other end having a hand crank. It also includes a flue gas and water discharge device, which includes a flue gas and water discharge housing, an expansion flange connecting the flue gas and water discharge housing to the outboard motor shaft, and a second connecting flange connecting the flue gas and water discharge housing to the water tank. The drive shaft mechanism passes through the flue gas and water discharge housing. The upper end of the flue gas and water discharge housing is provided with a flue gas pipe, and the lower end of the flue gas and water discharge housing is provided with a drain outlet.

2. The outboard motor testing system according to claim 1, characterized in that: The upper end of the first support plate is provided with an angle display component, and the upper end of the flip plate is provided with an angle indicator component.

3. The outboard motor testing system according to claim 1, characterized in that: The transmission shaft mechanism includes a transmission shaft, a drive key connected to one axial end of the transmission shaft, and a diaphragm flange and a first connecting flange connected to the other axial end of the transmission shaft. Elastic diaphragms are respectively provided between the drive key and the transmission shaft, and between the diaphragm flange and the transmission shaft.

4. The outboard motor testing system according to claim 1, characterized in that: The clamping device includes a first adjusting component movably mounted relative to the water tank in a first direction, a second adjusting component movably mounted relative to the first adjusting component along a second direction of the water tank, and a clamping mechanism fixed on the second adjusting component, wherein the first direction and the second direction are perpendicular to each other.

5. The outboard motor testing system according to claim 4, characterized in that: The clamping mechanism includes a clamping frame, at least one set of gripper assemblies mounted on the clamping frame, and a fine-tuning assembly connecting the gripper assemblies and the clamping frame. The gripper assembly includes two grippers arranged opposite to each other. The fine-tuning assembly includes an adjusting plate that is movable relative to the clamping frame in the vertical and horizontal directions, a connecting bolt connecting the grippers and the adjusting plate, and a pressure plate pressed against the outside of the adjusting plate.

6. The outboard motor testing system according to claim 5, characterized in that: The clamping frame is provided with two sets of gripper assemblies. The clamping frame is provided with through slots for the two connecting bolts of the two sets of gripper assemblies to extend out. The adjusting plate is provided with two first adjusting slots arranged vertically and extending in the vertical direction. The pressure plate is provided with two second adjusting slots that extend horizontally and are arranged at intervals. The connecting bolts pass through the first adjusting slots and the second adjusting slots.

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