Ship propulsion blade power testing device

Abstract

The utility model discloses a ship propulsion blade power testing device, comprising a water tank and a tank body, the tank body is provided with an installation assembly, the installation assembly comprises a motor 1 and a blade fixing plate, the inner side of the water tank is provided with a circulation assembly, the circulation assembly comprises an inner channel and an outer channel, the inner side of the tank body is provided with a lifting assembly, and the lifting assembly is connected with the motor 1. The lifting assembly comprises a partition plate and a piston, the partition plate is provided with a pushing assembly, the pushing assembly comprises a second motor and a lead screw, the ship propulsion blade power testing device can effectively simulate the sailing effect of a ship in water, meanwhile, reverse impact of a water tank on water flow is effectively avoided, and the testing efficiency is improved. And the tension meter is not impacted by the water flow, so that interference caused by the impact force of the water flow is effectively avoided, the stability of a ship propulsion blade power test result is guaranteed, and the ship propulsion blade power test device is suitable for ship propulsion blade power test.

Description

Technical Field

[0001] The utility model relates to the technical field of ship propulsion blade power testing equipment, in particular to a ship propulsion blade power testing device. Background Art

[0002] In order to ensure the design and processing quality of ship propulsion blades, it is often necessary to test the power of ship propulsion blades. The utility model patent with patent application number CN202321213756.5 discloses a ship propulsion blade power test device. When it is necessary to test the power of different types of impellers, the bolt is twisted outward to make it engage in the inner groove and move forward to disengage from the side wall of the block. The spring releases the potential energy to pull the side plate outward to drive the block to disengage from the slot, and the plug block is pulled forward to disengage from the slot. The original impeller is disassembled and replaced with the impeller to be tested, and the plug block with the impeller to be tested is inserted into the slot. The bolt is twisted backward to push the inclined surface of the block to produce vertical separation so that it is inserted into the aligned slot to complete the fixation, and the first motor is controlled to drive the screw to rotate and engage to drive the sleeve plate in the rear slot. It moves vertically downward, driving the impeller into the water in the pool body, controlling the second motor to drive the impeller to rotate, and the thrust generated by the rotation of the impeller in the water drives the slider to slide to the right in the slide groove, generating a rightward pulling force on the dynamometer. The generated pulling force is the power generated by the impeller, which brings convenience to the testing process. According to the technical scheme disclosed by the impeller, when the existing ship propulsion blade power testing equipment is used, on the one hand, when conducting a power test of the ship propulsion blade, the water flow pushed by the ship propulsion blade will be affected by the recoil force of the pool body, which is not conducive to ensuring the reliability of the power test of the ship propulsion blade. On the other hand, the dynamometer is installed underwater and is easily impacted by the water flow during the test, which is not conducive to ensuring the stability of the power test of the ship propulsion blade.

[0003] Therefore, how to design a ship propulsion blade dynamic test device has become our current problem to be solved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a ship propulsion blade power testing device to solve the problems raised in the above-mentioned background technology. The present invention has a reasonable design and is relatively convenient to use, and is suitable for use in ship propulsion blade power testing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ship propulsion blade power testing device, comprising a water tank and a tank body, a mounting assembly is installed on the tank body, the mounting assembly comprises a motor 1 and a blade fixing plate, a circulation assembly is installed on the inner side of the water tank, the circulation assembly comprises an inner channel and an outer channel, a lifting assembly is installed on the inner side of the tank body, the lifting assembly comprises a partition and a piston, a pushing assembly is installed on the partition, the pushing assembly comprises a motor 2 and a screw rod, a limiting assembly is installed on the water tank, and the limiting assembly comprises a support plate and a sliding rod.

[0006] Furthermore, the inner channel and the outer channel are integrally formed on the inner side of the water tank, the outer channel is distributed on both sides of the inner channel, and the two ends of the outer channel are connected to the two ends of the inner channel.

[0007] Furthermore, the tank body is placed on the inner side of the inner channel, the motor 1 is installed on the inner side of the tank body by bolts, one end of the blade fixing plate is installed on the outer side of the tank body, and the other end of the blade fixing plate passes through the tank body through a sealing ring and is keyed to the output shaft of the motor 1.

[0008] Furthermore, the partition is welded to the inner side of the tank body, the outer side of the piston is clamped on the inner wall of the tank body, and the motor 2 is installed on one side of the partition by bolts.

[0009] Furthermore, one end of the screw rod is keyed to the output shaft of motor 2, and the other end of the screw rod passes through the partition through a sealing ring and extends to the other side of the piston. The piston is threadedly sleeved on the outer side of the screw rod.

[0010] Furthermore, a through opening is provided on the tank body, and the inner side of the tank body is connected with the inner side of the inner channel through the through opening.

[0011] Furthermore, guide rods are welded at both ends of the slide rod, a guide groove is opened on the inner side of the water tank, the guide rod is clamped on the inner side of the guide groove, the support plate is installed on the top of the tank body by bolts, and the support plate is sleeved on the outer side of the slide rod through the slide groove.

[0012] Furthermore, a dynamometer is installed on the top of the water tank by bolts, and the support plate is connected to the dynamometer by a rope.

[0013] Beneficial effects: 1. When the ship propulsion blade dynamic test device is working, turn on motor 2, which pushes the piston to the left through the screw rod, and discharges the moisture in the tank body outward through the through port, so that the tank body drives the support plate to float upward, and the slide rod drives the guide rod to move upward, so as to move the blade fixing plate out of the water surface, which is convenient for installing and fixing the ship propulsion blade. After the installation is completed, turn on motor 2 in the opposite direction, and motor 2 pushes the piston to the right through the screw rod, and moisture enters the inner side of the tank body through the through port, sinking the ship propulsion blade underwater, and motor 1 drives the ship propulsion blade to rotate through the blade fixing plate, and the support plate on the tank body is limited by the slide rod to prevent the tank body from hitting the inner wall of the water tank, and the moisture in the inner channel is pushed by the ship propulsion blade and flows back to the inner side of the inner channel through the outer channel, thereby effectively simulating the effect of a ship sailing in the water, and at the same time effectively avoiding the reverse impact of the water flow by the water tank, thereby effectively improving the accuracy and reliability of the dynamic test of the ship propulsion blade.

[0014] 2. When the ship propulsion blade power test device is in use, the ship propulsion blade pushes the tank to move left on the inner side of the inner channel when it rotates. The tank pulls the rope through the support plate, and the rope pulls the dynamometer. The dynamometer is used to calculate the power of the ship propulsion blade. The dynamometer will not be impacted by the water flow, thereby effectively avoiding the interference caused by the impact force of the water flow, thereby ensuring the stability of the ship propulsion blade power test results.

[0015] 3. The ship propulsion blade power test device is reasonably designed, efficient and convenient to use, and is suitable for ship propulsion blade power testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the ship propulsion blade power test device of the utility model;

[0017] Figure 2 It is a cross-sectional view of the barrel of the ship propulsion blade power testing device of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the slide rod of the ship propulsion blade power test device of the utility model;

[0019] In the figure: 1. water tank; 2. tank body; 3. inner channel; 4. outer channel; 5. motor 1; 6. blade fixing plate; 7. partition; 8. piston; 9. motor 2; 10. screw rod; 11. through port; 12. support plate; 13. slide rod; 14. guide rod; 15. dynamometer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a ship propulsion blade power test device, including a water tank 1 and a tank body 2, a mounting assembly is installed on the tank body 2, the mounting assembly includes a motor 1 5 and a blade fixing plate 6, a circulation assembly is installed on the inner side of the water tank 1, the circulation assembly includes an inner channel 3 and an outer channel 4, a lifting assembly is installed on the inner side of the tank body 2, the lifting assembly includes a partition 7 and a piston 8, a pushing assembly is installed on the partition 7, the pushing assembly includes a motor 2 9 and a screw rod 10, a limiting assembly is installed on the water tank 1, the limiting assembly includes a support plate 12 and a sliding rod 13, the inner channel 3 and the outer channel 4 are both integrally formed on the inner side of the water tank 1, the outer channel 4 is distributed on both sides of the inner channel 3, and the two ends of the outer channel 4 are connected to the two ends of the inner channel 3. Guide rods 14 are welded to both ends of the slide rod 13, a guide groove is provided on the inner side of the water tank 1, and the guide rod 14 is stuck on the inner side of the guide groove. The support plate 12 is installed on the top of the tank body 2 by bolts, and the support plate 12 is sleeved on the outer side of the slide rod 13 through the slide groove. A dynamometer 15 is installed on the top of the water tank 1 by bolts, and the support plate 12 is connected to the dynamometer 15 by a rope. When in use, the ship's propulsion blades push the tank body 2 to move left on the inner side of the inner channel 3 when rotating, and the tank body 2 pulls the rope through the support plate 12, and the rope pulls the dynamometer 15. The dynamometer 15 is used to calculate the power of the ship's propulsion blades. The dynamometer 15 will not be impacted by the water flow, thereby effectively avoiding the interference caused by the impact force of the water flow, thereby ensuring the stability of the ship's propulsion blade power test results.

[0022] In this embodiment, the tank body 2 is placed on the inner side of the inner road 3, the motor 1 5 is installed on the inner side of the tank body 2 by bolts, one end of the blade fixing plate 6 is installed on the outer side of the tank body 2, the other end of the blade fixing plate 6 passes through the tank body 2 through a sealing ring and is keyed to the output shaft of the motor 1 5, the partition 7 is welded to the inner side of the tank body 2, the outer side of the piston 8 is stuck on the inner wall of the tank body 2, the motor 2 9 is installed on one side of the partition 7 by bolts, one end of the screw rod 10 is keyed to the output shaft of the motor 2 9, the other end of the screw rod 10 passes through the partition 7 through a sealing ring and extends to the other side of the piston 8, the piston 8 is arranged on the outer side of the screw rod 10 by a threaded sleeve, a through port 11 is opened on the tank body 2, the inner side of the tank body 2 is connected with the inner side of the inner road 3 through the through port 11, when working, the motor 2 9 is turned on, and the motor 2 9 pushes the piston 8 to the left through the screw rod 10 , the water in the tank body 2 is discharged outward through the through port 11, so that the tank body 2 drives the support plate 12 to float upward, and the slide rod 13 drives the guide rod 14 to move upward, so as to move the blade fixing plate 6 out of the water surface, which is convenient for installing and fixing the ship propulsion blade. After the installation is completed, the motor 2 9 is turned on in the reverse direction, and the motor 2 9 pushes the piston 8 to the right through the screw rod 10, and the water enters the inner side of the tank body 2 through the through port 11, sinking the ship propulsion blade underwater, and the motor 1 5 drives the ship propulsion blade to rotate through the blade fixing plate 6. The support plate 12 on the tank body 2 is limited by the slide rod 13 to prevent the tank body 2 from hitting the inner wall of the water tank 1. The water in the inner channel 3 is pushed by the ship propulsion blade and flows back to the inner side of the inner channel 3 through the outer channel 4, thereby effectively simulating the effect of the ship sailing in the water, and at the same time effectively avoiding the reverse impact of the water flow by the water tank 1, thereby effectively improving the accuracy and reliability of the dynamic test of the ship propulsion blade.

[0023] The ship propulsion blade power test device provides power to all electrical equipment through an external power supply. When working, turn on motor 2 9, motor 2 9 pushes piston 8 to the left through screw rod 10, and discharges the water in tank body 2 outward through opening 11, so that tank body 2 drives support plate 12 to float upward, and slide rod 13 drives guide rod 14 to move upward, so as to move blade fixing plate 6 out of water, so as to facilitate installation and fixation of ship propulsion blade. After installation, turn on motor 2 9 in the reverse direction, motor 2 9 pushes piston 8 to the right through screw rod 10, and water enters the inner side of tank body 2 through opening 11, sinking ship propulsion blade underwater, motor 1 5 drives ship propulsion blade to rotate through blade fixing plate 6, and support plate 12 on tank body 2 is moved by slide rod 13 limit, prevent the tank body 2 from hitting the inner wall of the water tank 1, the water in the inner channel 3 is pushed by the ship's propulsion blades, and flows back to the inner side of the inner channel 3 through the outer channel 4, thereby effectively simulating the effect of a ship sailing in the water, and effectively avoiding the reverse impact of the water flow by the water tank 1, thereby effectively improving the accuracy and reliability of the dynamic test of the ship's propulsion blades. When the ship's propulsion blades rotate, they push the tank body 2 to move left on the inner side of the inner channel 3, and the tank body 2 pulls the rope through the support plate 12, and the rope pulls the dynamometer 15, and the dynamometer 15 is used to calculate the power of the ship's propulsion blades. The dynamometer 15 will not be impacted by the water flow, thereby effectively avoiding the interference caused by the impact force of the water flow, and ensuring the stability of the dynamic test results of the ship's propulsion blades.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A ship propulsion blade power test device, comprising a water tank (1) and a tank body (2), wherein a mounting assembly is mounted on the tank body (2), wherein the mounting assembly comprises a motor 1 (5) and a blade fixing plate (6), and wherein: A circulation component is installed on the inner side of the water tank (1), and the circulation component includes an inner channel (3) and an outer channel (4). A lifting component is installed on the inner side of the tank body (2), and the lifting component includes a partition (7) and a piston (8). A pushing component is installed on the partition (7), and the pushing component includes a second motor (9) and a screw rod (10). A limiting component is installed on the water tank (1), and the limiting component includes a support plate (12) and a sliding rod (13).

2. The ship propulsion blade power test device according to claim 1, characterized in that: The inner channel (3) and the outer channel (4) are integrally formed on the inner side of the water tank (1); the outer channel (4) is distributed on both sides of the inner channel (3); and the two ends of the outer channel (4) are connected to the two ends of the inner channel (3).

3. The ship propulsion blade power test device according to claim 2, characterized in that: The tank body (2) is placed on the inner side of the inner channel (3); the motor one (5) is mounted on the inner side of the tank body (2) by means of bolts; one end of the blade fixing plate (6) is mounted on the outer side of the tank body (2); the other end of the blade fixing plate (6) passes through the tank body (2) via a sealing ring and is keyed to the output shaft of the motor one (5).

4. The ship propulsion blade power test device according to claim 3, characterized in that: The partition (7) is welded to the inner side of the tank body (2), the outer side of the piston (8) is clamped on the inner wall of the tank body (2), and the motor 2 (9) is installed on one side of the partition (7) by bolts.

5. The ship propulsion blade power test device according to claim 4, characterized in that: One end of the screw rod (10) is key-connected to the output shaft of the second motor (9), and the other end of the screw rod (10) passes through the partition (7) through a sealing ring and then extends to the other side of the piston (8). The piston (8) is arranged on the outer side of the screw rod (10) through a threaded sleeve.

6. The ship propulsion blade power test device according to claim 5, characterized in that: The tank body (2) is provided with a through opening (11), and the inner side of the tank body (2) is connected with the inner side of the inner channel (3) through the through opening (11).

7. The ship propulsion blade power test device according to claim 6, characterized in that: Guide rods (14) are welded to both ends of the slide rod (13); a guide groove is provided on the inner side of the water tank (1); the guide rod (14) is clamped on the inner side of the guide groove; the support plate (12) is mounted on the top of the tank body (2) by bolts; and the support plate (12) is sleeved on the outer side of the slide rod (13) by the slide groove.

8. The ship propulsion blade power test device according to claim 7, characterized in that: A dynamometer (15) is installed on the top of the water tank (1) by means of bolts, and the support plate (12) is connected to the dynamometer (15) by means of ropes.

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