Test platform for steering module

Abstract

A steering module test platform disclosed by the present invention comprises support rods and a circular trunk, the plurality of support rods are uniformly distributed at the outer edge of the trunk, and a brake device comprises a brake pad connected with a hydraulic cylinder and a brake cylinder connected with the rotor end of a pivotal bearing of a steering module. One end of the brake cylinder is connected with the rotor end of the slewing bearing of the steering module, the other end of the brake cylinder extends downwards, a small gap is formed between the other end and the brake pad, and force generated by interaction of the brake pad and the brake cylinder is transmitted to the steering module; according to the test platform, corresponding impact force and resistance can be input, and the running state of each hydraulic cylinder is adjusted, so that the impact force borne by the steering module in each direction and different resistances occurring in the running process are simulated, and the running reliability and stability of the steering module can be clearly judged after the steering module is subjected to external impact or resistance.

Description

Technical Field

[0001] This invention belongs to the field of podded propulsion technology, specifically relating to a test platform for a steering module. Background Technology

[0002] As a common marine propulsion device, the podded propulsion system, along with its matching rudder module, can change the direction of the water flow by driving the rudder blades to deflect, thereby controlling the ship's course. This allows the propulsion system to achieve 360° full rotation, enabling parallel movement of the hull. The rudder module features fast response, high control precision, and mature technology.

[0003] During factory testing, steering modules typically only undergo simple functional adjustments. For conditions such as the high resistance of large civilian transport ship propellers or the strong impact on podded propellers in icebreakers, the steering module cannot determine whether it meets the impact resistance requirements. Furthermore, when the propeller is stuck by an iceberg, it remains questionable whether the steering module can meet the full rotation requirement to free the ship. Additionally, the driving capability of the steering motor in the above situations cannot be determined to ensure stable operation.

[0004] As can be seen from the above, it is unknown whether the steering module can operate safely and stably when subjected to large impacts and large torques, so relevant verification methods are needed. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention proposes a steering module test platform that can apply impact and pressure to the steering module to simulate its actual operating conditions.

[0006] To address the aforementioned problems in the prior art, this invention proposes a steering module test platform that can apply instantaneous impact force and constant pressure to the steering module to simulate its actual operating conditions.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: a steering module test platform, including support rods and a circular well supported by the support rods. Multiple support rods are evenly distributed on the outer edge of the well. One end of a hydraulic cylinder is connected to the support rod via a diagonal brace, and the other end of the hydraulic cylinder is connected to a braking device. The braking device includes brake pads connected to the hydraulic cylinder and a brake cylinder for connecting to the rotor end of the slewing bearing of the steering module. One end of the brake cylinder is connected to the rotor end of the slewing bearing of the steering module, and the other end of the brake cylinder extends downward with a small gap between it and the brake pad. The force of the interaction between the brake pad and the brake cylinder is transmitted to the steering module. When simulating an impact on the steering module, the impact force of the hydraulic cylinders in each direction is adjusted according to the magnitude and direction of the impact force required for the test. After inputting a fixed direction or multiple directions of impact on the steering module, the hydraulic cylinders can automatically adjust the instantaneous impact force of each device. When simulating resistance on the steering module, adjusting the pressure of the hydraulic cylinders can change the friction force experienced by the steering module.

[0008] The aforementioned steering module test platform has eight brake pads, evenly distributed around the circumference of the well. Each brake pad is connected to a hydraulic cylinder, so that each hydraulic cylinder has its own independent brake pad.

[0009] The hydraulic cylinders have one set of pressurized cylinders and the other set of unpressurized cylinders, which simulates the working environment of the steering module being subjected to thrust. When both sets of hydraulic cylinders are pressurized, the friction between the brake cylinder and the brake pads is increased, which is used to simulate the load of the steering module motor during operation and to determine the operating capability of the steering motor.

[0010] The aforementioned test platform for a steering module has a brake cylinder with one end connected to the slewing bearing rotor of the steering module and the other end extending downward to contact the brake pads.

[0011] The aforementioned rudder module test platform has reinforcing ribs on both sides of its support rod.

[0012] The beneficial effects of this invention are:

[0013] The test platform established by this invention has six support rods below the well. There are reinforcing ribs on both sides of the support rods to strengthen the structure of the support rods and ensure the safety and feasibility of the test platform. After the hydraulic cylinder and the diagonal brace are fixed, they are connected to the support rods and the well platform. When the hydraulic cylinder applies pressure to the brake pads, the support rods and the well will be subjected to the same reaction force. At this time, the diagonal brace structure can use the well to reduce the pressure on the support rods.

[0014] When only one end of the hydraulic cylinder is pressurized and the other end is not, it simulates the working condition of the pod propulsion unit under thrust. When both ends of the hydraulic cylinder are pressurized, the friction between the steering module and the brake pads can be increased to simulate the load on the steering motor during operation and to determine the operating capability of the steering motor.

[0015] This invention simulates the complex operating conditions that the steering module may encounter during the operation of the podded thruster, and can determine the impact resistance of the steering module body in terms of mechanical structure and its stable operation under complex conditions. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is the P-direction view of the main view of this invention.

[0018] The labels on the attached drawings are as follows: 1—rudder module, 2—cofferdam, 3—support rod, 4—reinforcing rib, 5—diagonal brace, 6—hydraulic cylinder, 7—brake device, 71—brake pad, 72—brake cylinder. Detailed Implementation

[0019] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, although the various components in the drawings are drawn to a specific scale, these proportional relationships are merely exemplary, and those skilled in the art can adjust them as needed to adapt to specific application scenarios.

[0020] It should be noted that in the description of this invention, the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the direction or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0021] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] According to one example of the present invention, such as Figure 1 , Figure 2As shown, the present invention discloses a steering module test platform, which consists of a well 2, a support rod 3, a reinforcing rib 4, a diagonal brace 5, a hydraulic cylinder 6, and a braking device 7. The entire steering module 1 to be tested is installed on the well 2, which is supported by the support rod 3. There are reinforcing ribs 4 on both sides of the support rod 3 to reinforce the well 2. The support rod 3 and the reinforcing ribs 4 jointly support the well 2. Then, the steering module 1 is fixed on the well 2. The braking device 7 is connected to the well 2 and the support rod 3 by the diagonal brace 5 and the hydraulic cylinder 6. The diagonal brace structure can distribute and transmit the pressure applied by the hydraulic cylinder 6 to the support rod 3 and the well 2, thus dispersing the pressure on the support rod 3.

[0023] The braking device 7 consists of brake pads 71 ​​and brake cylinder 72. One end of the brake cylinder 72 is connected to the rotary bearing rotor of the steering module 1, and the other end extends downward to contact the brake pads 71. This is equivalent to transferring the force on the steering module 1 to the brake cylinder 72, and applying pressure to the steering module 1 using the brake cylinder 72. Each hydraulic cylinder 6 is connected to an individual brake pad 71 to transmit pressure, and the force subsequently applied to the steering module 1 is transmitted by the brake cylinder 72.

[0024] There are eight sets of brake pads 71. Each brake pad 71 is connected to a hydraulic cylinder 6 and a diagonal brace 5. Each hydraulic cylinder 6 is independently adjustable. Each brake pad 71 is connected to one hydraulic cylinder 6, so each hydraulic cylinder 6 has an independently matched brake pad 71. Through an independent control system, each brake pad 71 is connected to the hydraulic cylinder 6 and the diagonal brace 5 to achieve independent adjustment of the hydraulic cylinder 6.

[0025] The hydraulic cylinder 6 has one set of pressurized cylinders and the other set of cylinders not pressurized, which simulates the working environment of the steering module 1 being subjected to thrust. When both sets of hydraulic cylinders 6 are pressurized, the friction between the brake cylinder 72 and the brake pad 71 is increased, which is used to simulate the load of the steering module 1 motor during operation and to determine the operating capability of the steering motor.

[0026] In the experiment, when the steering module 1 is subjected to an impact, the magnitude and direction of the impact force are adjusted according to the experimental requirements. This simulates the impact on the steering module. The experimental platform has a pre-written algorithm that allows the hydraulic cylinders 6 to automatically adjust the instantaneous impact force of each device after the steering module 1 is input to be subjected to an impact in a fixed direction or multiple directions. When the steering module 1 is subjected to resistance, according to the basic formula of friction F=μ*N, adjusting the pressure of the hydraulic cylinders 6 can change the friction force on the steering module 1. The experimental platform has a pre-written algorithm that allows the hydraulic cylinders 6 to automatically adjust the pressure of each device after the required resistance of the steering module is input.

[0027] The adjustment interface of the hydraulic cylinder 6 is only for the required impact force magnitude and direction, and the resistance experienced by the steering module 1. The logic for adjusting the pressure of the hydraulic cylinder 6 is that when the steering module 1 is impacted, the impact force of the hydraulic cylinder 1 in each direction is adjusted according to the required impact force magnitude and direction for the test, thereby simulating the impact experienced by the steering module 1. When the steering module 1 is simulated to be under resistance, according to the basic formula of friction F=μ*N, adjusting the pressure of the hydraulic cylinder 6 can change the friction force experienced by the steering module 1.

[0028] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some of the application examples. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A test platform for a steering module, characterized in that: The system includes a support rod (3) and a circular well (2) supported by the support rod (3). There are multiple support rods (3) evenly distributed on the outer edge of the well (2). The support rod (3) is connected to a hydraulic cylinder (6) through a diagonal brace (5). The other side of the hydraulic cylinder (6) is connected to a brake device (7). The brake device (7) includes a brake pad (71) connected to the hydraulic cylinder (6) and a brake cylinder (72) for connecting to the steering module (1). In the experiment, the impact force of the hydraulic cylinder (6) in each direction is adjusted to simulate the impact on the steering module (1). The friction force on the steering module (1) is changed by adjusting the pressure of the hydraulic cylinder (6) to simulate the resistance of the steering module (1).

2. The steering module test platform according to claim 1, characterized in that, There are 8 brake pads (71) evenly distributed on the inner circumference of the well (2), and each brake pad (71) is connected to a hydraulic cylinder (6).

3. The rudder module test platform according to claim 2, characterized in that, When the simulated steering module (1) is subjected to thrust, only one set of hydraulic cylinders (6) applies pressure; when the simulated steering module (1) is under load during operation, two sets of hydraulic cylinders (6) apply pressure.

4. A test platform for a steering module according to claim 1, 2, or 3, characterized in that, The brake cylinder (72) is connected at one end to the rotary bearing rotor of the rudder module (1), and at the other end extends downward to contact the brake pad (71).

5. A test platform for a steering module according to claim 4, characterized in that, The support rod (3) is provided with reinforcing ribs (4) on both sides.

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