Wheel flange type thruster thrust testing device

Abstract

The utility model discloses a thrust testing device for a rim-type thruster. The thrust testing device comprises a testing frame, a testing table, a swing arm and a tension detector, the test frame is erected on the water pool; the test bench is arranged on the test frame; the middle of the swing arm is hinged to the test board; a fixed connecting rod is hinged to the upper end of the swing arm, and the lower end of the swing arm penetrates through the testing frame and is provided with a rim type propeller mounting area which is used for mounting a rim type propeller; the detection end of one side of the tension detector is connected with an adjustable connecting rod, the adjustable connecting rod is detachably connected to the test board, and the detection end of the other side of the tension detector is detachably connected with the fixed connecting rod. The thrust testing device for the wheel rim type thruster is simple in structure and high in stability, the tension detector can be replaced after the adjustable connecting rod is detached, thrusters with different powers can be mounted in the wheel rim type thruster mounting area for thrust testing, the thrust testing device is adaptive to different thrusters, and the performance of the thrusters with different powers can be researched.

Description

Technical Field

[0001] The utility model relates to the field of propeller detection equipment, in particular to a rim-type propeller thrust test device. Background Art

[0002] To verify the performance and stability of tethered underwater robots (UAVs), performance testing and analysis are required to verify that they meet the intended design requirements. Rim-type thrusters, commonly used in UAVs for underwater exploration and scientific research, serve as the power source for tethered underwater robots and determine their mobility. Therefore, research on the performance testing and analysis of tethered underwater robot thrusters is crucial to improving their reliability and operational performance. However, there is currently no comprehensive performance testing platform that can accurately and universally test thrusters of varying power. Utility Model Content

[0003] The purpose of the utility model is to provide a rim-type propeller thrust test device to solve the above problems.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] The utility model provides a rim-type thruster thrust test device, comprising a test frame, a test bench, a swing arm and a tension detector;

[0006] The test frame is mounted on the pool, and the test bench is set on the test frame; the middle part of the swing arm is hinged to the test bench; the upper end of the swing arm is hinged with a fixed connecting rod, the lower end of the swing arm passes through the test frame, and the lower end of the swing arm is provided with a rim-type propeller mounting area, and the rim-type propeller mounting area is used to install the rim-type propeller;

[0007] One detection end of the tension tester is connected to an adjustable connecting rod, and the adjustable connecting rod is detachably connected to the test bench. The other detection end of the tension tester is detachably connected to the fixed connecting rod.

[0008] In the rim-type thruster thrust test device, the test bench includes a mounting plate, an articulated seat, and a detector connection seat; the mounting plate is mounted on the test frame, and the mounting plate is provided with an avoidance hole; the upper end of the swing arm passes through the avoidance hole and is connected to the other side of the fixed connecting rod and the tension detector;

[0009] The hinge seat is provided on the bottom surface of the mounting plate, and is located at the periphery of the avoidance hole; the middle portion of the swing arm is hinged to the hinge seat;

[0010] The detector connection seat is arranged on the top surface of the mounting plate, and the detector connection seat is located on one side of the avoidance hole in the Y-axis direction. The adjustable connecting rod is detachably connected to the detector connection seat.

[0011] In the rim-type thruster thrust test device, the hinge seat includes an integrally formed first hinge plate, a limit plate, a second hinge plate, and a first hinge shaft; the first hinge plate is arranged on one side of the avoidance hole in the X-axis direction, and the second hinge plate is arranged on the other side of the avoidance hole in the X-axis direction; one end of the limit plate is connected to an end of the first hinge plate close to the detector connection seat, and the other end of the limit plate is connected to an end of the first hinge plate close to the detector connection seat;

[0012] The first hinge plate is provided with a first through hole, the first hinge plate is provided with a second through hole, one end of the first hinge shaft is fixed to the first through hole, the other end of the first hinge shaft is fixed to the second through hole, and the swing arm is hinged to the hinge seat through the first hinge shaft.

[0013] In the rim-type thruster thrust testing device, the articulated seat further comprises a supporting I-shaped plate, one end of the supporting I-shaped plate is connected to the limiting plate, and the other end of the supporting I-shaped plate is connected to the mounting plate.

[0014] In the rim-type thruster thrust test device, the detector connecting seat includes a connecting plate and multiple reinforced angle plates; the connecting plate is arranged on the top surface of the mounting plate, and the connecting plate is provided with a mounting hole, and the adjustable connecting rod is detachably connected to the mounting hole; the reinforced angle plates are spaced apart on one side of the connecting plate close to the avoidance hole, and the bottom of the reinforced angle plate is fixedly connected to the top surface of the mounting plate.

[0015] In the rim-type thruster thrust test device, the test frame includes a crossbeam frame and a bracket; brackets are provided at the proximal ends of both ends of the crossbeam frame; the bracket includes a connecting frame and a bracket connecting plate, one end of the connecting frame is connected to the crossbeam frame, and the other end of the connecting frame is connected to the bracket connecting plate, and the bottom of the bracket connecting plate is provided with a mounting groove, and the mounting groove is used to be embedded in the side wall of the pool;

[0016] The test bench is arranged on a crossbeam frame, and the lower end of the swing arm passes through the crossbeam frame.

[0017] In the rim-type thruster thrust test device, the swing arm includes a hinged rod, a fixed rod and a mounting flange;

[0018] The upper end of the articulated rod is provided with a second articulated shaft, and the fixed connecting rod is hinged to the second articulated shaft; the lower end of the articulated rod is connected to the fixed rod, and an articulated shaft installation station is provided at the proximal end of the lower end of the articulated rod, and the first articulated shaft is installed at the articulated shaft installation station; the lower end of the fixed rod is connected to the mounting flange, and the rim-type propeller mounting area is located at the mounting flange.

[0019] In the rim-type thruster thrust testing device, the swing arm also includes a reinforced I-shaped bar; reinforced I-shaped bars are provided on both sides of the fixed rod in the Y-axis direction; one end of the reinforced I-shaped bar is connected to the proximal end of the upper end of the fixed rod, and the other end of the reinforced I-shaped bar is connected to the mounting flange.

[0020] In the rim-type thruster thrust testing device, the mounting flange is provided with a wiring through-hole and multiple screw holes; the mounting flange is provided with wiring through-holes on both sides of the fixed rod in the X-axis direction, and the circuit of the rim-type thruster is connected to the outside through the wiring through-holes. The screw holes are arranged at intervals on the mounting flange for installing the rim-type thruster.

[0021] A technical solution in the present invention can have the following beneficial effects:

[0022] The rim-type thruster thrust test device has a simple structure and strong stability. The tension tester can remove the adjustable connecting rod and then replace it. Propellers of different powers can be installed in the rim-type thruster installation area for thrust testing. It is suitable for different propellers and can be used to study the performance of propellers of different powers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of one embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the connection between the test bench and the swing arm in one embodiment of the present utility model;

[0025] Figure 3 This is a diagram showing the state of use of one embodiment of the present utility model;

[0026] Figure 4 This is a diagram showing the connection relationship of the supporting I-shaped plate in one embodiment of the present utility model;

[0027] In the accompanying drawings: a test frame 1, a test bench 2, a swing arm 3, a tension tester 4; a fixed connecting rod 5, an adjustable connecting rod 6; a rim-type propeller 7;

[0028] Beam frame 11, bracket 12; mounting plate 21, hinge seat 22, detector connection seat 23; hinge rod 31, fixing rod 32, mounting flange 33; reinforcement profile 34;

[0029] Mounting groove 120; connecting frame 121, bracket connecting plate 122; avoidance hole 210; first hinge plate 221, limit plate 222, second hinge plate 223, first hinge axis 224; supporting I-type plate 225; connecting plate 231, reinforcing angle plate 232; second hinge axis 311; wiring through hole 331, screw hole 332. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limitations on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features without distinction of order or importance.

[0032] In the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] Please refer to Figures 1 to 4 , the utility model provides a rim-type thruster thrust test device, comprising a test frame 1, a test table 2, a swing arm 3 and a tension detector 4;

[0035] The test frame 1 is mounted on the pool, and the test bench 2 is set on the test frame 1; the middle part of the swing arm 3 is hinged to the test bench 2; the upper end of the swing arm 3 is hinged to a fixed connecting rod 5, and the lower end of the swing arm 3 passes through the test frame 1, and the lower end of the swing arm 3 is provided with a rim-type propeller mounting area, and the rim-type propeller mounting area is used to install the rim-type propeller 7;

[0036] One detection end of the tension tester 4 is connected to an adjustable connecting rod 6 , and the adjustable connecting rod 6 is detachably connected to the test bench 2 . The other detection end of the tension tester 4 is detachably connected to the fixed connecting rod 5 .

[0037] The rim-type thruster thrust test device is installed in a pool of water using a test frame 1. In a static state, the water level in the pool reaches the middle of the swing arm 3, the central axis of the swing arm 3 is perpendicular to the water level, the extended line of the fixed connecting rod 5 forms a 90° angle with the central axis of the swing arm 3, and the rim-type thruster 7 is completely submerged in the pool. The installation orientation of the rim-type thruster 7 needs to be adjusted according to the position of the tension tester 4; the water inlet end of the rim-type thruster 7 faces the side closest to the tension tester 4. When the rim-type thruster 7 is activated, the rotating rim causes water to enter the water inlet end of the rim-type thruster 7 and exit the water outlet end of the rim-type thruster 7, thereby generating a propulsive force, which drives the lower end of the swing arm 3 to deflect away from the tension tester 4. The upper end of the swing arm 3 drives the fixed connecting rod 5, causing the tension at both ends of the tension tester 4 to change, thereby detecting the thrust generated by the rim-type thruster.

[0038] The rim-type propeller thrust test device has a simple structure and strong stability. The tension detector 4 can be replaced after the adjustable connecting rod 6 is disassembled. Propellers of different powers can be installed in the rim-type propeller installation area for thrust testing. It is suitable for different propellers and can study the performance of propellers of different powers.

[0039] Specifically, the test bench 2 includes a mounting plate 21, a hinged seat 22, and a detector connection seat 23; the mounting plate 21 is mounted on the test frame 1, and the mounting plate 21 is provided with an avoidance hole 210; the upper end of the swing arm 3 passes through the avoidance hole 210 and is connected to the other side of the fixed connecting rod 5 and the tension detector 4;

[0040] The hinge seat 22 is provided on the bottom surface of the mounting plate 21 and is located at the periphery of the avoidance hole 210 ; the middle portion of the swing arm 3 is hinged to the hinge seat 22 ;

[0041] The detector connection seat 23 is provided on the top surface of the mounting plate 21 . The detector connection seat 23 is located on one side of the avoidance hole 210 in the Y-axis direction. The adjustable connecting rod 6 is detachably connected to the detector connection seat 23 .

[0042] In a specific embodiment of the present invention, when no test is performed, the extension line of the fixed connecting rod 5 and the central axis of the swing arm 3 are perpendicular to each other.

[0043] Mounting plate 21 secures hinged base 22 and detector connection base 23 to test frame 1. Detector connection base 23 connects to adjustable connecting rod 6, which in turn secures tensile tester 4 via fixed connecting rod 5. Hinge base 22 secures swing arm 3. Clearance hole 210 provides clearance to prevent interference between the upper end of swing arm 3 and mounting plate 21, which could lead to measurement errors.

[0044] Specifically, the hinge seat 22 includes an integrally formed first hinge plate 221, a limiting plate 222, a second hinge plate 223, and a first hinge shaft 224; the first hinge plate 221 is arranged on one side of the avoidance hole 210 in the X-axis direction, and the second hinge plate 223 is arranged on the other side of the avoidance hole 210 in the X-axis direction; one end of the limiting plate 222 is connected to the end of the first hinge plate 221 close to the detector connection seat 23, and the other end of the limiting plate 222 is connected to the end of the first hinge plate 221 close to the detector connection seat 23;

[0045] The first hinge plate 221 is provided with a first through hole, the first hinge plate 221 is provided with a second through hole, one end of the first hinge shaft 224 is fixed to the first through hole, the other end of the first hinge shaft 224 is fixed to the second through hole, and the swing arm 3 is hinged to the hinge seat 22 through the first hinge shaft 224.

[0046] With the above structure, the first hinge plate 221 and the second hinge plate 223 cooperate to fix the first hinge shaft 224, so that the swing arm 3 is hinged to the hinge base 22 via the first hinge shaft 224. The limit plate 222 acts as a limiter to prevent the lower end of the swing arm 3 from deflecting toward the tension tester 4, thereby preventing the upper end of the swing arm 3 from pulling the tension tester 4 in the opposite direction and causing damage to the tension tester 4.

[0047] Specifically, the hinge seat 22 further includes a supporting I-shaped plate 225 , one end of the supporting I-shaped plate 225 is connected to the limiting plate 222 , and the other end of the supporting I-shaped plate 225 is connected to the mounting plate 21 .

[0048] The supporting I-shaped plate 225 serves to enhance the strength and stability of the hinge seat 22 , improve the bearing capacity of the limiting plate 222 , and reduce deformation or damage of the limiting plate 222 .

[0049] Specifically, the detector connecting seat 23 includes a connecting plate 231 and a plurality of reinforced angle plates 232; the connecting plate 231 is arranged on the top surface of the mounting plate 21, and the connecting plate 231 is provided with a mounting hole, and the adjustable connecting rod 6 is detachably connected to the mounting hole; the reinforced angle plates 232 are spaced apart on one side of the connecting plate 231 close to the avoidance hole 210, and the bottom of the reinforced angle plate 232 is fixedly connected to the top surface of the mounting plate 21.

[0050] The connecting plate 231 serves to connect the adjustable connecting rod 6 , while the reinforcing angle plate 232 serves to increase the strength and stability of the connecting plate 231 , thereby improving the bearing capacity of the connecting plate 231 and reducing deformation or damage of the connecting plate 231 .

[0051] Specifically, the test frame 1 includes a crossbeam frame 11 and a bracket 12; a bracket 12 is provided at the proximal ends of both ends of the crossbeam frame 11; the bracket 12 includes a connecting frame 121 and a bracket connecting plate 122, one end of the connecting frame 121 is connected to the crossbeam frame 11, and the other end of the connecting frame 121 is connected to the bracket connecting plate 122, and the bottom of the bracket connecting plate 122 is provided with a mounting groove 120, and the mounting groove 120 is used to be embedded in the side wall of the pool;

[0052] The test bench 2 is disposed on a crossbeam 11 , and the lower end of the swing arm 3 passes through the crossbeam 11 .

[0053] Crossbeam 11 is used to mount test bench 2 and connects to brackets 12 on either side. Brackets 12 are used to mount the thrust test device within the pool. Mounting grooves 120 at the bottom of bracket connecting plate 122 are designed to be embedded in the pool's sidewalls, providing a more stable mounting structure for bracket 12. This prevents displacement of the rim-mounted thruster 7 during testing, which could affect measurement accuracy. In practical applications, bracket connecting plate 122 can also be welded to the pool's sidewalls using expansion bolts.

[0054] Specifically, the swing arm 3 includes a hinge rod 31, a fixing rod 32 and a mounting flange 33;

[0055] The upper end of the articulated rod 31 is provided with a second articulated shaft 311, and the fixed connecting rod 5 is hinged to the second articulated shaft 311; the lower end of the articulated rod 31 is connected to the fixed rod 32, and an articulated shaft installation station is provided at the proximal end of the lower end of the articulated rod 31, and the first articulated shaft 224 is installed at the articulated shaft installation station; the lower end of the fixed rod 32 is connected to the mounting flange 33, and the rim-type propeller mounting area is located at the mounting flange 33.

[0056] The hinge rod 31 is used to install and fix the connecting rod 5 and is used to be hinged with the first hinge shaft 224. The fixing rod 32 serves to connect the hinge rod 31 and the mounting flange 33, and the mounting flange 33 is used to install the rim-type propeller.

[0057] Furthermore, the swing arm 3 also includes a reinforced I-shaped bar 34; reinforced I-shaped bars 34 are provided on both sides of the fixed rod 32 in the Y-axis direction; one end of the reinforced I-shaped bar 34 is connected to the proximal end of the upper end of the fixed rod 32, and the other end of the reinforced I-shaped bar 34 is connected to the mounting flange 33.

[0058] With the above structure, the reinforced I-shaped strip 34 can greatly reduce the deformation of the rotating shaft of the rim-type propeller 7 during testing, thereby improving the test accuracy.

[0059] Furthermore, the mounting flange 33 is provided with a wiring through hole 331 and a plurality of screw holes 332; the mounting flange 33 is provided with wiring through holes 331 on both sides of the fixing rod 32 in the X-axis direction, and the circuit of the rim-type propeller 7 is connected to the outside through the wiring through hole 331, and the screw holes 332 are arranged at intervals on the mounting flange 33 for installing the rim-type propeller 7.

[0060] Wiring holes 331 provide space for wiring of rim-type thruster 7, making it easier for testers to electrically connect rim-type thruster 7 to the control device. This prevents the wiring of rim-type thruster 7 from affecting water flow during testing and causing measurement errors. Screw holes 332 are provided on the periphery of the rim-type thruster mounting area. Bolts and screw holes 332 are used to mount rim-type thruster 7 to mounting flange 33.

[0061] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific embodiments of the present invention without inventive effort, and such equivalent variations or substitutions are encompassed within the scope of the claims of this application.

Claims

1. A rim-type propeller thrust test device, characterized in that: Including test frame, test bench, swing arm and tensile tester; The test frame is mounted on the pool, and the test bench is set on the test frame; the middle part of the swing arm is hinged to the test bench; the upper end of the swing arm is hinged with a fixed connecting rod, the lower end of the swing arm passes through the test frame, and the lower end of the swing arm is provided with a rim-type propeller mounting area, and the rim-type propeller mounting area is used to install the rim-type propeller; One detection end of the tension tester is connected to an adjustable connecting rod, and the adjustable connecting rod is detachably connected to the test bench. The other detection end of the tension tester is detachably connected to the fixed connecting rod.

2. A rim-type propeller thrust test device according to claim 1, characterized in that: The test bench includes a mounting plate, an articulated seat, and a detector connection seat; the mounting plate is mounted on the test frame, and the mounting plate is provided with an avoidance hole; the upper end of the swing arm passes through the avoidance hole and is connected to the fixed connecting rod and the other side of the tension detector; The hinge seat is provided on the bottom surface of the mounting plate, and is located at the periphery of the avoidance hole; the middle portion of the swing arm is hinged to the hinge seat; The detector connection seat is arranged on the top surface of the mounting plate, and the detector connection seat is located on one side of the avoidance hole in the Y-axis direction. The adjustable connecting rod is detachably connected to the detector connection seat.

3. A rim-type propeller thrust test device according to claim 2, characterized in that: The hinge seat includes an integrally formed first hinge plate, a limiting plate, a second hinge plate, and a first hinge shaft; the first hinge plate is arranged on one side of the avoidance hole in the X-axis direction, and the second hinge plate is arranged on the other side of the avoidance hole in the X-axis direction; one end of the limiting plate is connected to an end of the first hinge plate close to the detector connection seat, and the other end of the limiting plate is connected to an end of the first hinge plate close to the detector connection seat; The first hinge plate is provided with a first through hole, the first hinge plate is provided with a second through hole, one end of the first hinge shaft is fixed to the first through hole, the other end of the first hinge shaft is fixed to the second through hole, and the swing arm is hinged to the hinge seat through the first hinge shaft.

4. A rim-type propeller thrust test device according to claim 3, characterized in that: The hinge seat also includes a supporting I-shaped plate, one end of the supporting I-shaped plate is connected to the limiting plate, and the other end of the supporting I-shaped plate is connected to the mounting plate.

5. The rim-type propeller thrust test device according to claim 1, characterized in that: The detector connecting seat includes a connecting plate and multiple reinforced angle plates; the connecting plate is arranged on the top surface of the mounting plate, and the connecting plate is provided with a mounting hole, and the adjustable connecting rod is detachably connected to the mounting hole; the reinforced angle plates are spaced apart on one side of the connecting plate close to the avoidance hole, and the bottom of the reinforced angle plate is fixedly connected to the top surface of the mounting plate.

6. A rim-type propeller thrust test device according to claim 5, characterized in that: The test frame includes a crossbeam frame and a bracket; brackets are provided at the proximal ends of both ends of the crossbeam frame; the bracket includes a connecting frame and a bracket connecting plate, one end of the connecting frame is connected to the crossbeam frame, and the other end of the connecting frame is connected to the bracket connecting plate, and the bottom of the bracket connecting plate is provided with a mounting groove, and the mounting groove is used to be embedded in the side wall of the pool; The test bench is arranged on a crossbeam frame, and the lower end of the swing arm passes through the crossbeam frame.

7. The rim-type propeller thrust test device according to claim 3, characterized in that: The swing arm includes a hinged rod, a fixed rod and a mounting flange; The upper end of the articulated rod is provided with a second articulated shaft, and the fixed connecting rod is hinged to the second articulated shaft; the lower end of the articulated rod is connected to the fixed rod, and an articulated shaft installation station is provided at the proximal end of the lower end of the articulated rod, and the first articulated shaft is installed at the articulated shaft installation station; the lower end of the fixed rod is connected to the mounting flange, and the rim-type propeller mounting area is located at the mounting flange.

8. The rim-type propeller thrust test device according to claim 7, characterized in that: The swing arm also includes a reinforced I-shaped bar; reinforced I-shaped bars are provided on both sides of the fixed rod in the Y-axis direction; one end of the reinforced I-shaped bar is connected to the proximal end of the upper end of the fixed rod, and the other end of the reinforced I-shaped bar is connected to the mounting flange.

9. The rim-type propeller thrust test device according to claim 7, characterized in that: The mounting flange is provided with a wiring through hole and multiple screw holes; the mounting flange is provided with wiring through holes on both sides of the fixed rod in the X-axis direction, and the circuit of the rim-type propeller is connected to the outside through the wiring through holes. The screw holes are arranged at intervals on the mounting flange for installing the rim-type propeller.

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