Comprehensive test bed for testing ship hydraulic system

Abstract

The invention discloses a comprehensive test bed for testing a ship hydraulic system, and relates to the technical field of hydraulic systems, and the comprehensive test bed comprises an oil supply assembly, an oil pump loading module, a control assembly and an actuator loading assembly; the oil supply assembly comprises an oil tank assembly and a motor pump assembly communicated with the oil tank assembly; the motor pump assembly comprises a hydraulic pump and a motor for loading the hydraulic pump; the oil pump loading module is communicated with the motor pump assembly; the control assembly is communicated with the oil pump loading module; the actuator loading assembly comprises a motor working condition simulation module, an oil cylinder working condition simulation module and a load loading module, and the control assembly communicates with the motor working condition simulation module and the oil cylinder working condition simulation module. According to the multi-dimensional hydraulic oil testing device, modular design is adopted, different types of hydraulic elements can be selected according to simulated equipment working conditions, main hydraulic elements such as a hydraulic pump, a motor and an oil cylinder can be replaced according to actual working conditions, and therefore multi-dimensional testing of hydraulic oil is achieved on different types of hydraulic elements of a ship hydraulic system.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic systems, and more specifically, to a comprehensive test bench for testing ship hydraulic systems. Background Art

[0002] Because hydraulic transmission has the advantages of small size, light weight, fast response, flexible operation, and easy automation, and hydraulic oil has the functions of lubrication, sealing, cooling, rust prevention and shock absorption, hydraulic systems are widely used in ship's anchor windlass, steering gear, boat hoist, adjustable pitch propeller, fin stabilizer, watertight door, valve and other switch remote control systems.

[0003] Each hydraulic system can be composed of one or more hydraulic pumps, hydraulic motors, hydraulic cylinders and other components. Among them, hydraulic oil is an important medium in the hydraulic system to achieve energy transfer, cooling, lubrication and other functions. The type and model of hydraulic oil have an important impact on the operation of the entire hydraulic system. At the same time, each hydraulic system uses different types of hydraulic oil according to different functions and occasions of use, and different manufacturers. There are many types, which brings great inconvenience to the maintenance of the later equipment. Therefore, it is necessary to classify and sort out the types of hydraulic oil, and optimize the selection of hydraulic oil. In the selection process, it is necessary to try the actual installation effects of various hydraulic oils one by one on each type of equipment, and use tests to verify and evaluate them. If the hydraulic oil is directly installed and used on the equipment in production operation, the test risk is high; if the full-scale bench test on land is used for verification, the cost is high and the test conditions are relatively harsh.

[0004] In order to facilitate the selection of hydraulic oil, a hydraulic system test bench is usually built to simulate one of the pump, motor and cylinder hydraulic components to test the performance of the hydraulic oil. However, the traditional hydraulic system test bench only tests the pump, motor and cylinder hydraulic components, and its functions are relatively simple, and most of them can only test one of the three.

[0005] Therefore, how to implement multi-dimensional testing of hydraulic oil on different types of hydraulic components in a ship's hydraulic system has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0006] In view of this, the purpose of the present application is to provide a comprehensive test bench for testing ship hydraulic systems, so as to realize multi-dimensional testing of hydraulic oil on different types of hydraulic components of ship hydraulic systems.

[0007] To achieve the above objectives, this application provides the following technical solutions:

[0008] A comprehensive test bench for testing ship hydraulic systems, including:

[0009] An oil supply assembly, used for providing hydraulic oil to be tested, the oil supply assembly comprising an oil tank assembly and a motor pump assembly communicated with the oil tank assembly, the motor pump assembly comprising a hydraulic pump and a motor for driving the hydraulic pump;

[0010] An oil pump loading module, the oil pump loading module is in communication with the motor pump assembly, and the oil pump loading module is used to simulate a loading test of the hydraulic pump;

[0011] a control assembly, the control assembly being in communication with the oil pump loading module;

[0012] An actuator loading component, the actuator loading component includes a motor operating condition simulation module, a cylinder operating condition simulation module and a load loading module, the control component is connected to the motor operating condition simulation module and the cylinder operating condition simulation module respectively, and the load loading module is used to provide hydraulic energy to the motor operating condition simulation module and the cylinder operating condition simulation module.

[0013] Optionally, the above-mentioned comprehensive test bench also includes an oil cooling module, which is used to cool the hydraulic oil. The oil cooling module includes a cooler and a delivery pump, and the delivery pump is arranged on the connecting pipeline between the cooler and the oil tank assembly.

[0014] Optionally, in the above-mentioned integrated test bench, the oil cooling module is provided with an oil cooling circuit, the oil cooling circuit is connected to the cooler and the oil tank assembly respectively, and the oil cooling circuit is provided with a first overflow valve and an oil return filter.

[0015] Optionally, in the above-mentioned comprehensive test bench, the cooler is one of air cooling and water cooling; and / or,

[0016] The delivery pump is a vane pump.

[0017] Optionally, the above-mentioned comprehensive test bench also includes an oil collection circuit, which is connected to the oil tank assembly, and the oil collection circuit includes an oil collection hydraulic pump and an oil collection filter, so that the leaked hydraulic oil is injected into the oil collection filter through the oil collection hydraulic pump and then flows back to the oil tank assembly.

[0018] Optionally, in the above-mentioned integrated test bench, the load loading module includes a bridge circuit and a second overflow valve, the bridge circuit is connected to the motor operating condition simulation module and the cylinder operating condition simulation module respectively, and the bridge circuit is connected to the control component through an oil replenishment pipeline, the bridge circuit is connected to the oil tank assembly through a first return oil pipeline, and the second overflow valve is arranged on the first return oil pipeline.

[0019] Optionally, in the above-mentioned integrated test bench, the motor operating condition simulation module includes a motor, a load hydraulic pump and a shuttle valve, the shuttle valve is used for braking or emergency braking of the motor, the load hydraulic pump is connected to the bridge circuit, and the motor is connected to the control component.

[0020] Optionally, in the above-mentioned comprehensive test bench, the cylinder working condition simulation module includes a driving cylinder and a load cylinder, the load cylinder is connected to the bridge circuit, the driving cylinder is connected to the control component, a counterweight is arranged between the driving cylinder and the load cylinder, the counterweight is used to balance the force of the driving cylinder and the load cylinder, and a force sensor is arranged between the counterweight and the driving cylinder.

[0021] Optionally, in the above-mentioned comprehensive test bench, the control component includes a first solenoid reversing valve and a second solenoid reversing valve, the first solenoid reversing valve is connected to the motor through a first pipeline and a second pipeline respectively, the second solenoid reversing valve is connected to the driving cylinder through a third pipeline and a fourth pipeline respectively, and the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are respectively provided with a first pressure sensor.

[0022] Optionally, in the above-mentioned integrated test bench, the oil pump loading module includes a high-pressure filter, the high-pressure filter is connected to the oil tank assembly through a second oil return pipeline, and a third overflow valve is arranged on the second oil return pipeline, and the high-pressure filter is provided with a pressure difference transmitter.

[0023] Optionally, in the above-mentioned comprehensive test bench, a flow meter, a second pressure sensor, a pressure gauge and a temperature sensor are provided on the second oil return pipeline.

[0024] Optionally, in the above-mentioned integrated test bench, the hydraulic pump includes a variable displacement pump and a fixed displacement pump, and the motor includes a first motor for driving the variable displacement pump and a second motor for driving the fixed displacement pump.

[0025] Optionally, in the above-mentioned integrated test bench, the oil tank assembly includes an oil storage tank and a partition, and the partition can be movably arranged in the oil storage tank to enable the oil storage tank to switch between different volumes.

[0026] Optionally, the above-mentioned comprehensive test bench also includes an expansion interface for connecting an expansion oil control module.

[0027] The comprehensive test bench for testing the ship hydraulic system provided by the present application is connected to the oil tank assembly through the motor pump assembly of the oil supply assembly, so as to provide the hydraulic oil to be tested for the comprehensive test bench. At the same time, the motor pump assembly is connected through the oil pump loading module to realize the simulated loading test of the hydraulic pump of the motor pump assembly. In addition, the load loading module of the actuator loading assembly can provide hydraulic energy to the motor working condition simulation module and the cylinder working condition simulation module respectively, and the motor working condition simulation module and the cylinder working condition simulation module can be controlled respectively through the control assembly to realize the simulated loading test of the motor and the cylinder. From the above examples, it can be seen that the comprehensive test bench for testing the ship hydraulic system provided by the present application adopts a modular design, and different types of hydraulic components can be selected according to the simulated equipment working conditions, and different functional test modules can be replaced, which is more convenient to replace. In addition, the main hydraulic components such as hydraulic pumps, motors and cylinders can be replaced according to the actual working conditions, so as to realize the multi-dimensional test of hydraulic oil on different types of hydraulic components of the ship hydraulic system.

[0028] The technical features mentioned above, the technical features to be mentioned below, and the technical features shown separately in the drawings can be combined with each other arbitrarily, as long as the combined technical features are not contradictory. All feasible feature combinations are technical contents clearly recorded in this article. Any of the multiple sub-features contained in the same sentence can be applied independently, and does not have to be applied together with other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the hydraulic principle of the comprehensive test bench provided in the embodiment of the present application.

[0031] Among them, 10 is an oil supply component, 20 is an oil pump loading module, 30 is a control component, 40 is an actuator loading component, 50 is an oil cooling module, 60 is an oil collection circuit, and 70 is an expansion interface;

[0032] 11 is a fuel tank assembly, 111 is a fuel storage tank, 112 is a visual liquid level gauge, 113 is a ball valve, 114 is a pressure liquid level sensor, 115 is an air filter, 116 is a fuel tank temperature sensor, 12 is a motor pump assembly, 121 is a hydraulic pump, 1211 is a variable displacement pump, 1212 is a fixed displacement pump, 122 is a motor, 1221 is a first motor, and 1222 is a second motor;

[0033] 21 is a high pressure filter, 22 is a second oil return pipeline, 221 is a flow meter, 222 is a second pressure sensor, 223 is a pressure gauge, 224 is a temperature sensor, and 23 is a third overflow valve;

[0034] 31 is a first electromagnetic reversing valve, 311 is a first pipeline, 312 is a second pipeline, 32 is a second electromagnetic reversing valve, 321 is a third pipeline, 322 is a fourth pipeline, and 33 is a first pressure sensor;

[0035] 41 is a motor working condition simulation module, 411 is a motor, 412 is a load hydraulic pump, 413 is a shuttle valve, 42 is a cylinder working condition simulation module, 421 is a driving cylinder, 422 is a load cylinder, 423 is a counterweight, 424 is a force sensor, 43 is a load loading module, 431 is a bridge circuit, 4311 is an oil replenishment pipeline, 4312 is a first oil return pipeline, and 432 is a second overflow valve;

[0036] 51 is a cooler, 52 is a delivery pump, 53 is an oil cooling circuit, 531 is a first overflow valve, and 532 is an oil return filter;

[0037] 61 is an oil collecting hydraulic pump, and 62 is an oil collecting filter. DETAILED DESCRIPTION

[0038] The core of this application is to provide a comprehensive test bench for testing ship hydraulic systems to achieve multi-dimensional testing of hydraulic oil on different types of hydraulic components in ship hydraulic systems.

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] For this reason, Figure 1 As shown, the embodiment of the present application discloses a comprehensive test bench for testing a ship hydraulic system, including an oil supply component 10, an oil pump loading module 20, a control component 30, and an actuator loading component 40. By adopting a modular design, different types of hydraulic components can be selected according to the simulated equipment working conditions, and different functional test modules can be replaced, making replacement more convenient. In addition, the main hydraulic components such as the hydraulic pump 121, motor, and cylinder can be replaced according to the actual working conditions, thereby realizing multi-dimensional testing of hydraulic oil on different types of hydraulic components in the ship hydraulic system.

[0041] The following will be combined Figure 1The comprehensive test bench for testing a ship hydraulic system disclosed in an embodiment of the present application is specifically explained and illustrated.

[0042] like Figure 1 As shown, the oil supply assembly 10 can provide hydraulic oil to be tested for other modules, and the oil supply assembly 10 can include an oil tank assembly 11 and a motor pump assembly 12 connected to the oil tank assembly 11 .

[0043] The oil tank assembly 11 may adopt an integrated oil tank with adjustable volume, so as to contain the hydraulic oil to be tested required for the test, and distribute it to each module for use through the motor pump assembly 12. At the same time, it can be adjusted between two specifications of 600L and 1500L according to actual needs.

[0044] Exemplarily, the oil tank assembly 11 may include an oil storage tank 111 and a partition, and the partition is located in the oil storage tank 111 and can move along the length direction of the oil storage tank 111, so that the oil storage tank 111 can be switched between two different volumes, and the partition can be fixed by bolts and other fasteners to ensure the stability of the oil storage tank 111 after adjusting the volume. In addition, an air filter 115 is provided on the oil storage tank 111, which can filter and clean the solid particle pollutants in the hydraulic oil to be tested. In addition, in order to monitor the liquid level state of the hydraulic oil in the oil storage tank 111, a visual level gauge 112 and a pressure level sensor 114 can be provided on the oil storage tank 111, and the liquid level state of the hydraulic oil in the oil storage tank 111 can be visually observed through the visual level gauge 112, and the liquid level state of the hydraulic oil in the oil storage tank 111 can be fed back to the software system through the pressure level sensor 114, so that the operator can remotely monitor the liquid level state of the hydraulic oil in the oil storage tank 111. At the same time, the oil tank 111 is also provided with an oil tank temperature sensor 116, so that the temperature of the hydraulic oil in the oil tank 111 can be remotely monitored through the software system. Of course, a thermometer can also be provided on the oil tank 111 to more intuitively observe the temperature of the hydraulic oil in the oil tank 111.

[0045] like Figure 1 As shown, the motor pump assembly 12 can provide high-pressure hydraulic oil for the comprehensive test bench, making it a power source for loading other modules. The motor pump assembly 12 may include a hydraulic pump 121 and a motor 122 that loads the hydraulic pump 121, and the motor 122 is connected to the hydraulic pump 121 through a coupling, so that the motor 122 can drive the hydraulic pump 121 to work, thereby providing high-pressure hydraulic oil for other modules. Of course, it is also possible to carry out testing of hydraulic pumps of different types and specifications by replacing transitional connection components such as the hydraulic pump 121, couplings, and flanges.

[0046] For example, Figure 1As shown, there can be two hydraulic pumps 121, which are a variable pump 1211 and a fixed pump 1212, and the motor 122 can include a first motor 1221 driving the variable pump 1211 and a second motor 1222 driving the fixed pump 1212. Among them, the first motor 1221 can be a high-power motor, which can simulate the large flow or medium-high pressure working conditions of hydraulic systems such as steering gear, anchor windlass and adjustable pitch propeller, while the second motor 1222 can be a low-power motor, which can simulate the small flow or low pressure working conditions of hydraulic systems such as watertight doors, side doors and revolving boarding ladders. The variable pump 1211 is driven by the first motor 1221, sucks oil from the oil storage tank 111 through the ball valve 113, and supplies oil to the oil pump loading module 20 and the control component 30 through the high-pressure hose and the one-way valve. At the same time, a flow meter can be set on the variable pump 1211, and the overflow flow can be observed by the flow meter when the variable pump 1211 adjusts the displacement. Similarly, the working principle of the metering pump 1212 is basically the same as that of the variable pump 1211, and will not be described in detail herein. Of course, the variable pump 1211 and the metering pump 1212 can also be quickly replaced according to actual needs, and can be installed by adapting different couplings and motors 122.

[0047] like Figure 1 As shown, the oil pump loading module 20 may be in communication with the motor pump assembly 12 to simulate a loading test of the hydraulic pump 121 in the motor pump assembly 12 .

[0048] For example, Figure 1 As shown, the oil pump loading module 20 may include a high-pressure filter 21 provided with a pressure differential transmitter, and the high-pressure filter 21 may be connected to the oil tank assembly 11 through a second oil return line 22, and a third relief valve 23 is provided on the second oil return line 22. When the high-pressure hydraulic oil provided by the hydraulic pump 121 of the motor pump assembly 12 enters from the P port of the high-pressure filter 21, it is filtered by the high-pressure filter 21 with a pressure differential transmitter and enters the third relief valve 23. By adjusting the third relief valve 23, a loading test of the hydraulic pump 121 in the motor pump assembly 12 can be simulated, and finally returns to the oil storage tank 111 through the ball valve. In addition, a flow meter 221, a second pressure sensor 222, a pressure gauge 223 and a temperature sensor 224 may be provided on the second oil return line 22, so as to facilitate parameter setting or adjustment through the backstage central control room. In the above example, the hydraulic pump 121 can be loaded separately. Of course, an expansion interface 70 can also be provided between the oil pump loading module 20 and the motor pump assembly 12, so that other expansion oil control modules can be connected through the expansion interface 70, for example, a new loading module can be expanded to test special oil pumps, such as closed oil pumps.

[0049] like Figure 1As shown, the control component 30 can be connected to the oil pump loading module 20. At the same time, the actuator loading component 40 may include a motor condition simulation module 41, a cylinder condition simulation module 42 and a load loading module 43, and the control component 30 can be connected to the motor condition simulation module 41 and the cylinder condition simulation module 42 respectively, so that the motor condition of a typical device can be simulated by the motor condition simulation module 41, and the hydraulic cylinder condition of a typical device can be simulated by the cylinder condition simulation module 42. In addition, the load loading module 43 can provide hydraulic energy to the motor condition simulation module 41 and the cylinder condition simulation module 42. It should be noted that the typical equipment can be the ship's anchor machine, steering gear, boat hoist, pitch propeller, anti-roll fin, watertight door and valve, etc.

[0050] For example, Figure 1 As shown, the load loading module 43 may include a bridge circuit 431 and a second relief valve 432, and the bridge circuit 431 may be connected to the motor working condition simulation module 41 and the cylinder working condition simulation module 42 respectively, and the bridge circuit 431 is connected to the control component 30 through the oil replenishment pipeline 4311, and is connected to the oil tank component 11 through the first oil return pipeline 4312, and the second relief valve 432 is arranged on the first oil return pipeline 4312, so that the flow and pressure of the hydraulic oil can be changed by adjusting the second relief valve 432. Through the adjustment and control of the second relief valve 432 and the bridge circuit 431, within the rated range, the load loading module 43 can realize stepless adjustment according to the set load signal, and can maintain the load loading state when simulating automatic intermittent start and stop operations.

[0051] For example, Figure 1 As shown, the motor working condition simulation module 41 may include a motor 411, a load hydraulic pump 412 and a shuttle valve 413. The motor 411 is connected to the control assembly 30, so that the motor 411 can rotate under the action of high-pressure oil, and the shuttle valve 413 can be used for braking or emergency braking, and the load hydraulic pump 412 is connected to the bridge circuit 431, and the load hydraulic pump 412 can be used to simulate the load working condition of the motor 411, and the torque can be adjusted and set by the bridge circuit 431 and the second overflow valve 432. Of course, the motor 411 and the load hydraulic pump 412 can also be replaced according to the corresponding type and model as needed.

[0052] For example, Figure 1As shown, the cylinder working condition simulation module 42 may include a driving cylinder 421 and a load cylinder 422. The driving cylinder 421 is connected to the control assembly 30, so that the driving cylinder 421 can be driven by high-pressure hydraulic oil, and the load cylinder 422 can be connected to the bridge circuit 431 to simulate the load working condition of the driving cylinder 421. At the same time, a counterweight 423 is provided between the driving cylinder 421 and the load cylinder 422 to balance the forces of the driving cylinder 421 and the load cylinder 422, and a force sensor 424 is provided between the counterweight 423 and the driving cylinder 421, so that the force value of the backstage central control room can be fed back in real time, and the bridge circuit 431 and the second overflow valve 432 are adjusted and set. Of course, the driving cylinder 421 and the load cylinder 422 can also be replaced by selecting the corresponding type and corresponding model as needed.

[0053] For example, Figure 1 As shown, the control component 30 may include a first electromagnetic reversing valve 31 and a second electromagnetic reversing valve 32. The first electromagnetic reversing valve 31 may be connected to the motor 411 through the first pipeline 311 and the second pipeline 312, respectively, and the second electromagnetic reversing valve 32 may be connected to the driving cylinder 421 through the third pipeline 321 and the fourth pipeline 322, respectively, and the first pipeline 311, the second pipeline 312, the third pipeline 321 and the fourth pipeline 322 are respectively provided with a first pressure sensor 33. Optionally, the first electromagnetic reversing valve 31 and the second electromagnetic reversing valve 32 may be controlled by a valve-controlled cylinder or a valve-controlled motor. In this embodiment, the first electromagnetic reversing valve 31 and the second electromagnetic reversing valve 32 are controlled by a valve-controlled motor. By energizing or de-energizing the first electromagnetic reversing valve 31, the first pipeline 311 or the second pipeline 312 obtains high pressure, thereby controlling the motor 411 in the motor working condition simulation module 41 to achieve forward and reverse rotation and stop. Similarly, the second electromagnetic reversing valve 32 can be energized or de-energized to enable the third pipeline 321 or the fourth pipeline 322 to obtain high pressure, thereby controlling the driving cylinder 421 in the cylinder working condition simulation module 42 to achieve reciprocating motion and stop.

[0054] like Figure 1As shown, the comprehensive test bench may also include an independently arranged oil cooling module 50, so that the hydraulic oil in the oil storage tank 111 can be circulated and cooled without starting the motor 122 of the motor pump assembly 12. The oil cooling module 50 may include a cooler 51 and a delivery pump 52, and the delivery pump 52 is arranged on the connecting pipeline between the cooler 51 and the oil tank assembly 11, and the delivery pump 52 is connected to the motor through a coupling, so that it can work under the drive of the motor to pump the hydraulic oil in the oil storage tank 111 into the cooler 51 for cooling. At the same time, the oil cooling module 50 is provided with an oil cooling circuit 53, and the oil cooling circuit 53 is respectively connected to the cooler 51 and the oil tank assembly 11, so that the cooled hydraulic oil can flow back to the oil storage tank 111 through the oil cooling circuit 53. In addition, a first relief valve 531 and a return oil filter 532 are provided on the oil cooling circuit 53 to ensure that the hydraulic oil in the oil cooling circuit 53 is within a safe pressure range, and can be filtered through the return oil filter 532 to ensure the cleanliness of the return oil. In order to prevent overpressure and overload caused by blockage of the cooler 51, the set pressure of the first relief valve 531 can be 0.5MPa.

[0055] Exemplarily, the cooler 51 can be air-cooled or water-cooled, that is, the cooler 51 can be air-cooled or water-cooled. Preferably, the cooler 51 is water-cooled, and the cooler 51 has a liquid inlet and a liquid outlet, so that the cooling medium can enter the cooler 51 to circulate and cool the hydraulic oil. In addition, the delivery pump 52 can be a vane pump, so as to provide low-pressure and high-flow hydraulic oil.

[0056] like Figure 1 As shown, the integrated test bench may also include an oil collecting circuit 60, and the oil collecting circuit 60 includes an oil collecting hydraulic pump 61 and an oil collecting filter 62, so that the hydraulic oil leaked from the integrated test bench during the removal or replacement of components can be injected into the oil collecting filter 62 through the oil collecting hydraulic pump 61 and then returned to the oil tank assembly 11.

[0057] For example, the comprehensive test bench can be provided with a 380V power supply from the outside and can communicate and transmit data with the outside. The electrical control box collects information from each hydraulic component, receives control information from the human-machine interface, and controls the start and stop of the motor 122 in the motor pump component 12 and the power gain and loss of the solenoid valve in the control component 30 through its own program processing, thereby controlling the action of the actuator loading component 40.

[0058] It should be noted that in the above embodiments, each module is connected by pipelines, joints and connectors, so that the hydraulic oil forms a circulation loop. At the same time, a standardized interface is used to facilitate the replacement of the module. Among them, the standardized interface may include but is not limited to the coupling accessories of Rexroth A10V series 28, 45, 71, 100 displacement, A4V series 40, 71, 125 displacement, A2F series 125 displacement hydraulic pumps, and the pipeline connection or transition piece between the hydraulic pump and the valve group.

[0059] The comprehensive test bench for ship hydraulic system testing provided by the present application adopts a modular design, and different types of hydraulic components can be selected according to the simulated equipment working conditions, and different functional test modules can be replaced, making replacement more convenient. In addition, the main hydraulic components such as the hydraulic pump 121, motor and oil cylinder, and wearing parts such as oil seals and gaskets can be conveniently replaced according to the actual working conditions, thereby realizing multi-dimensional testing of hydraulic oil on different types of hydraulic components in the ship hydraulic system.

[0060] The comprehensive test bench for testing ship hydraulic systems provided by the present application can monitor the main test data of the comprehensive test bench such as hydraulic oil temperature, pressure, flow, liquid level, viscosity, particle contamination, cylinder movement speed, valve-controlled motor torque, etc. in real time or online, and can meet the test of all grades of hydraulic oil with a viscosity range of 10 to 110 at 40°C, such as No. 15, No. 32, No. 46, No. 68, No. 100, etc. In addition, it can meet the test requirements under working conditions such as medium and high pressure and large flow, and can realize stepless adjustment according to the set load signal. In addition, through the cooperation of the software system and the hardware system, the hydraulic oil temperature can be accurately controlled, and it can automatically power off and shut down under abnormal working conditions. The interface has a high degree of universality, good scalability and data interactivity, and can facilitate data collection and export. At the same time, the comprehensive test bench has good environmental adaptability, is not affected by seasons and weather, and has the functions of self-cleaning, cooling and heating of hydraulic oil. In addition, according to subsequent actual needs, an expansion interface 70 is reserved for the expansion of the external oil control function module.

[0061] The terms "first" and "second" and the like in the specification and claims of this application and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0062] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A comprehensive test bench for testing ship hydraulic systems, characterized in that: include: An oil supply assembly (10) for providing hydraulic oil to be tested, the oil supply assembly (10) comprising an oil tank assembly (11) and a motor pump assembly (12) in communication with the oil tank assembly (11), the motor pump assembly (12) comprising a hydraulic pump (121) and a motor (122) for driving the hydraulic pump (121); an oil pump loading module (20), the oil pump loading module (20) being in communication with the motor pump assembly (12), the oil pump loading module (20) being used to simulate a loading test of the hydraulic pump (121); A control component (30), the control component (30) being in communication with the oil pump loading module (20); An actuator loading component (40), the actuator loading component (40) comprising a motor operating condition simulation module (41), a cylinder operating condition simulation module (42) and a load loading module (43), the control component (30) being respectively connected to the motor operating condition simulation module (41) and the cylinder operating condition simulation module (42), and the load loading module (43) being used to provide hydraulic energy to the motor operating condition simulation module (41) and the cylinder operating condition simulation module (42).

2. The comprehensive test bench according to claim 1, characterized in that: It also includes an oil cooling module (50), which is used to cool the hydraulic oil. The oil cooling module (50) includes a cooler (51) and a delivery pump (52), and the delivery pump (52) is arranged on a connecting pipeline between the cooler (51) and the oil tank assembly (11).

3. The comprehensive test bench according to claim 2, characterized in that: The oil cooling module (50) is provided with an oil cooling circuit (53), the oil cooling circuit (53) being in communication with the cooler (51) and the oil tank assembly (11) respectively, and the oil cooling circuit (53) is provided with a first overflow valve (531) and an oil return filter (532).

4. The comprehensive test bench according to claim 2, characterized in that: The cooler (51) is one of air cooling and water cooling; and / or, The delivery pump (52) is a vane pump.

5. The comprehensive test bench according to claim 1, characterized in that: It also includes an oil collecting circuit (60), the oil collecting circuit (60) being in communication with the oil tank assembly (11), and the oil collecting circuit (60) including an oil collecting hydraulic pump (61) and an oil collecting filter (62), so that leaked hydraulic oil is injected into the oil collecting filter (62) through the oil collecting hydraulic pump (61) and then flows back to the oil tank assembly (11).

6. The comprehensive test bench according to claim 1, characterized in that: The load loading module (43) comprises a bridge circuit (431) and a second overflow valve (432); the bridge circuit (431) is respectively connected to the motor operating condition simulation module (41) and the cylinder operating condition simulation module (42); the bridge circuit (431) is connected to the control component (30) via an oil replenishment pipeline (4311); the bridge circuit (431) is connected to the oil tank component (11) via a first oil return pipeline (4312); and the second overflow valve (432) is arranged on the first oil return pipeline (4312).

7. The integrated test bench according to claim 6, characterized in that: The motor operating condition simulation module (41) comprises a motor (411), a load hydraulic pump (412) and a shuttle valve (413), wherein the shuttle valve (413) is used for braking or emergency braking of the motor (411), the load hydraulic pump (412) is connected to the bridge circuit (431), and the motor (411) is connected to the control component (30).

8. The integrated test bench according to claim 7, characterized in that: The cylinder working condition simulation module (42) comprises a driving cylinder (421) and a load cylinder (422), wherein the load cylinder (422) is connected to the bridge circuit (431), and the driving cylinder (421) is connected to the control component (30). A counterweight (423) is provided between the driving cylinder (421) and the load cylinder (422), wherein the counterweight (423) is used to balance the forces acting on the driving cylinder (421) and the load cylinder (422), and a force sensor (424) is provided between the counterweight (423) and the driving cylinder (421).

9. The integrated test bench according to claim 8, characterized in that: The control component (30) comprises a first electromagnetic reversing valve (31) and a second electromagnetic reversing valve (32); the first electromagnetic reversing valve (31) is connected to the motor (411) via a first pipeline (311) and a second pipeline (312), respectively; the second electromagnetic reversing valve (32) is connected to the driving cylinder (421) via a third pipeline (321) and a fourth pipeline (322), respectively; and a first pressure sensor (33) is provided on each of the first pipeline (311), the second pipeline (312), the third pipeline (321) and the fourth pipeline (322).

10. The integrated test bench according to claim 1, characterized in that: The oil pump loading module (20) comprises a high-pressure filter (21), the high-pressure filter (21) being in communication with the oil tank assembly (11) via a second oil return pipeline (22), a third overflow valve (23) being provided on the second oil return pipeline (22), and the high-pressure filter (21) being provided with a pressure difference transmitter.

11. The integrated test bench according to claim 10, characterized in that: The second oil return pipeline (22) is provided with a flow meter (221), a second pressure sensor (222), a pressure gauge (223) and a temperature sensor (224).

12. The integrated test bench according to claim 1, characterized in that: The hydraulic pump (121) comprises a variable displacement pump (1211) and a fixed displacement pump (1212), and the motor (122) comprises a first motor (1221) for driving the variable displacement pump (1211) and a second motor (1222) for driving the fixed displacement pump (1212).

13. The integrated test bench according to claim 1, characterized in that: The oil tank assembly (11) comprises an oil storage tank (111) and a partition, wherein the partition is movably arranged in the oil storage tank (111) so that the oil storage tank (111) can be switched between different volumes.

14. The integrated test bench according to claim 1, characterized in that: It also includes an expansion interface (70) for connecting an expansion oil control module.

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