Hydraulic system of twin-dragging six-degree-of-freedom platform

Abstract

The utility model discloses a hydraulic system of a twin-dragging six-degree-of-freedom platform, which belongs to the technical field of hydraulic systems and comprises a base. An oil tank, a hydraulic oil pump assembly, a pressure adjusting device, an electric adjusting valve, a circulating pump, a filtering device, a temperature adjusting assembly and an oil conveying pipeline are arranged on the base. The hydraulic oil pump assembly supplies hydraulic oil to the six-degree-of-freedom platform through the oil tank, the hydraulic oil pump assembly, the pressure adjusting device, the filtering device and the electric adjusting valve through the oil conveying pipeline, and the circulating pump enables the hydraulic oil in the six-degree-of-freedom platform to sequentially pass through the circulating pump and the temperature adjusting assembly to return into the oil tank through the oil conveying pipeline. The hydraulic system of the twin-trawling six-degree-of-freedom platform can effectively solve the problems that in the prior art, an oil supply device of the twin-trawling six-degree-of-freedom platform is large in occupied area, long in oil conveying pipeline, inconvenient to maintain and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic systems, and specifically relates to a hydraulic system for towing a six-degree-of-freedom platform. Background Art

[0002] The six-degree-of-freedom platform is a machine that uses hydraulic control to output various movements to maintain dynamic balance. It tests the simulated dynamic balance of the fan during production and rotation. The six-degree-of-freedom motion platform is composed of six action cylinders, six universal hinges on the upper and lower platforms, and two upper and lower platforms. The lower platform is fixed on the foundation. With the help of the telescopic movement of the six actuators, the upper platform can complete the movement of six degrees of freedom (X, Y, Z, α, β, γ) in space, so as to simulate various spatial motion postures. It can be widely used in various training simulators such as flight simulators, ship simulators, helicopter take-off and landing simulation platforms, automatic platform vehicle driving simulators, train driving simulators, earthquake simulators, dynamic movies, entertainment equipment and other fields, and can even be used in the docking of spacecraft and the refueling docking of aerial refueling tankers.

[0003] In the prior art, the arrangement of the filter device, the main pump device and the pipelines in the hydraulic oil supply device of the towed six-degree-of-freedom platform is very scattered, which occupies a large area and has long pipelines, which is very inconvenient when maintenance is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic system for a towing six-degree-of-freedom platform in view of the above shortcomings, so as to solve the problems of the oil supply device of the towing six-degree-of-freedom platform in the prior art occupying a large area, having a long oil pipeline, and being inconvenient to maintain. To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A hydraulic system for towing a six-degree-of-freedom platform comprises a base; the base is provided with an oil tank, a hydraulic oil pump assembly, a pressure regulating device, an electric regulating valve, a circulating pump, a filtering device, a temperature regulating assembly and an oil pipeline; the hydraulic oil pump assembly supplies hydraulic oil to the six-degree-of-freedom platform through the oil pipeline via the oil tank, the hydraulic oil pump assembly, the pressure regulating device, the filtering device and the electric regulating valve, and the circulating pump returns the hydraulic oil in the six-degree-of-freedom platform to the oil tank through the oil pipeline in sequence through the circulating pump and the temperature regulating assembly.

[0006] Furthermore, it also includes an energy storage component; a first pipeline is connected to the oil pipeline between the pressure regulating device and the electric regulating valve; the first pipeline is connected to the energy storage component; and a solenoid valve is provided on the first pipeline.

[0007] Furthermore, the hydraulic oil pump assembly includes a first main pump, a second main pump, a third main pump, a fourth main pump and a fifth main pump; the input ends of the first main pump, the second main pump, the third main pump, the fourth main pump and the fifth main pump are respectively connected to the oil tank, and the output ends are connected to the oil pipeline after being collected.

[0008] Furthermore, it also includes an auxiliary oil pump; the input end of the auxiliary oil pump is connected to the oil tank through an oil pipeline, and the output end is gathered to the output ends of the first main pump, the second main pump, the third main pump, the fourth main pump and the fifth main pump.

[0009] Furthermore, the temperature regulating component includes an oil cooler; the oil cooler is arranged on an oil pipeline connecting the six-degree-of-freedom platform and the circulation pump.

[0010] Furthermore, the energy storage assembly includes a first accumulator, a second accumulator, a third accumulator, a fourth accumulator and a fifth accumulator; the first accumulator, the second accumulator, the third accumulator, the fourth accumulator and the fifth accumulator are arranged in parallel.

[0011] Furthermore, a heater assembly is provided on the oil tank; the heater assembly includes a heater and a temperature controller; the temperature controller is electrically connected to the heater.

[0012] Furthermore, the oil tank is provided with a limit temperature controller; the limit temperature controller is electrically connected to the heater.

[0013] Furthermore, a float liquid level switch is provided on the oil tank.

[0014] Furthermore, the oil tank is provided with a vacuum pressure gauge to detect the pressure balance in the oil tank.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model is a hydraulic system for towing a six-degree-of-freedom platform. By integrating the oil tank, main pump, filter device, circulating pump and accumulator into the base, and connecting various devices through oil pipelines, the overall floor space is reduced, and the distance of the oil pipeline is shortened, thereby reducing maintenance costs;

[0017] 2. The utility model provides a hydraulic system for towing a six-degree-of-freedom platform. By further arranging a circulation pump, a filtering device, and a temperature regulating device, the circulation use of hydraulic oil is realized, and at the same time the safety of the hydraulic system is ensured, and the hydraulic oil supplied to the six-degree-of-freedom platform is ensured to be of suitable pressure, suitable temperature, and free of impurities. At the same time, a plurality of energy storage devices are added to convert the energy in the system into compression energy and store it at an appropriate time. When the system needs it, the compression energy is converted into hydraulic energy to replenish the system. When the instantaneous pressure of the system increases, the energy storage device can absorb this part of the energy to ensure the normal pressure of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front-view stereoscopic structural schematic diagram of the utility model;

[0019] Figure 2 This is a rear-view stereoscopic structural schematic diagram of the utility model;

[0020] In the accompanying drawings: 1-first accumulator, 2-second accumulator, 3-third accumulator, 4-fourth accumulator, 5-fifth accumulator, 6-auxiliary oil pump, 7-first main pump, 8-second main pump, 9-third main pump, 10-fourth main pump, 11-fifth main pump, 12-filtering device, 14-oil tank, 15-circulating pump, 16-oil cooler, 17-electric regulating valve, 18-heater assembly, 19-circulating filter. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the present invention is not limited to the following embodiments.

[0022] Embodiment 1:

[0023] See attached Figures 1-2A hydraulic system for towing a six-degree-of-freedom platform comprises a base; the base is provided with an oil tank 14, a hydraulic oil pump assembly, a pressure regulating device, an electric regulating valve 17, a circulating pump 15, a filter device 12, a temperature regulating assembly and an oil pipeline; the hydraulic oil pump assembly supplies hydraulic oil to the six-degree-of-freedom platform through the oil tank 14, the hydraulic oil pump assembly, the pressure regulating device, the filter device 12 and the electric regulating valve 17 through the oil pipeline, and the circulating pump 15 returns the hydraulic oil in the six-degree-of-freedom platform to the oil tank 14 through the oil pipeline in sequence through the circulating pump 15 and the temperature regulating assembly. As can be seen from the above structure, the utility model integrates various components on the base. Specifically, an oil tank 14 is arranged on the base for storing a sufficient amount of hydraulic oil. An outlet is arranged on the side wall of the oil tank 14 to communicate with the oil pipeline, which is connected to the hydraulic pump assembly through the oil pipeline. The hydraulic pump assembly sucks the hydraulic oil in the oil tank 14 through the electric motor to form a pressure oil discharge. The hydraulic oil with a certain pressure is continuously transported to the pressure regulating device through the oil pipeline to further adjust the pressure of the hydraulic oil to a suitable range. The hydraulic pump assembly provides power for the hydraulic oil. The properly adjusted hydraulic oil continues to enter the filter device 12 through the oil pipeline for filtration to obtain hydraulic oil with less impurities, thereby ensuring the cleanliness of the hydraulic oil and preventing impurities in the oil. Metal impurities affect the cylinder seal of the six-degree-of-freedom hydraulic system. The hydraulic oil after filtration continues to be transported through the oil pipeline. After the flow is adjusted by the electric regulating valve 17, the hydraulic oil at this time has a certain pressure and is clean enough. It is quantitatively delivered to the six-degree-of-freedom platform. The hydraulic oil used by the six-degree-of-freedom platform has a high temperature. The circulating pump 15 inhales the hydraulic oil used in the six-degree-of-freedom platform, and further sets a circulating filter 19 for filtering. After filtering, it enters the circulating pump 15 through the oil pipeline. The motor of the circulating pump 15 provides power for the hydraulic oil, and continues to enter the temperature adjustment component through the oil pipeline. After further reducing the temperature, it is transported back to the oil tank 14 to complete the recycling of the hydraulic oil. The utility model integrates the oil tank 14, the hydraulic pump component, the pressure regulating device, the electric regulating valve 17, the circulating pump 15, the filter device 12, the temperature adjustment component and the oil pipeline on the base, further reducing the footprint of the entire system. At the same time, after the various devices are integrated together, the spacing becomes shorter, the oil pipeline is also shortened accordingly, reducing costs, and maintenance is also more convenient. By integrating on the base, transportation is also more convenient.

[0024] Embodiment 2:

[0025] See attached Figures 1-2. On the basis of the first embodiment, it also includes an energy storage component; a first pipeline is connected to the oil pipeline between the pressure regulating device and the electric regulating valve 17; the first pipeline is connected to the energy storage component; and a solenoid valve is provided on the first pipeline. It can be seen from the above structure that the energy storage component converts the energy in the system into compression energy and stores it when appropriate, and when the system needs it, it converts the compression energy into hydraulic energy to replenish the system. When the system pressure increases instantaneously, the energy storage device can absorb this part of the energy to ensure that the pressure of the entire system is normal. The specific energy storage component is connected to the oil pipeline between the pressure regulating device and the electric regulating valve 17 through the first pipeline, and a solenoid valve is provided on the first pipeline. The hydraulic oil with hydraulic energy is transported to the energy storage component through the first pipeline by opening the solenoid valve. When the energy storage component has hydraulic oil with hydraulic energy again, it is connected to the electric regulating valve 17 through the oil pipeline, and the electric regulating valve 17 adjusts the flow rate and then transports it to the six-degree-of-freedom platform for use.

[0026] The hydraulic oil pump assembly includes a first main pump 7, a second main pump 8, a third main pump 9, a fourth main pump 10 and a fifth main pump 11; the input ends of the first main pump 7, the second main pump 8, the third main pump 9, the fourth main pump 10 and the fifth main pump 11 are respectively connected to the oil tank 14, and the output ends are connected to the oil pipeline after being collected. It can be seen from the above structure that the application scenarios of the six-degree-of-freedom platform often involve large equipment, which requires sufficient energy to drive the six-degree-of-freedom platform. The first main pump 7, the second main pump 8, the third main pump 9, the fourth main pump 10 and the fifth main pump 11 are set to improve the hydraulic energy of the system. The five main pumps are collected and transported to ensure that there is sufficient hydraulic energy supply at all times to ensure the stable operation of the six-degree-of-freedom platform.

[0027] Embodiment three:

[0028] See attached Figures 1-2 . Based on the second embodiment, an auxiliary oil pump 6 is further included; the input end of the auxiliary oil pump 6 is connected to the oil tank 14 through the oil pipeline, and the output end is collected to the output ends of the first main pump 7, the second main pump 8, the third main pump 9, the fourth main pump 10 and the fifth main pump 11. It can be seen from the above structure that the auxiliary oil pump 6 further provides hydraulic energy for the entire system. The output ends of the auxiliary oil pump 6 and the five main pumps are collected in the same oil pipeline. When a specific main pump fails, it replaces its work to supply energy to the system and ensure the stable operation of the system.

[0029] The temperature adjustment component includes an oil cooler 16; the oil cooler 16 is arranged on the oil pipeline connecting the six-degree-of-freedom platform and the circulation pump 15. As can be seen from the above structure, the plate-type oil cooler 16 is specifically selected to further reduce the volume of the overall device, and the plate-type oil cooler 16 is used to cool the hydraulic oil after being used by the six-degree-of-freedom platform, so as to prevent the high-temperature hydraulic oil from entering the system and affecting other components, thereby ensuring the safety of various instruments.

[0030] The energy storage assembly includes a first accumulator 1, a second accumulator 2, a third accumulator 3, a fourth accumulator 4 and a fifth accumulator 5; the first accumulator 1, the second accumulator 2, the third accumulator 3, the fourth accumulator 4 and the fifth accumulator 5 are arranged in parallel. From the above structure, it can be seen that the energy storage assembly correspondingly includes the first accumulator 1, the second accumulator 2, the third accumulator 3, the fourth accumulator 4 and the fifth accumulator 5. The application scenario of the six-degree-of-freedom platform involves large-scale equipment. In the setting of the accumulator, the number of main pumps is also matched to ensure that the six-degree-of-freedom platform can operate normally when the accumulator is powered to ensure safety.

[0031] The oil tank 14 is provided with a heater assembly 18; the heater assembly 18 includes a heater and a temperature controller; the temperature controller is electrically connected to the heater. As can be seen from the above structure, the oil tank 14 is provided with a heater assembly 18, which includes a heater and a temperature controller. The heater contacts the hydraulic oil in the oil tank 14 to heat the hydraulic oil. The hydraulic oil with a certain temperature has better fluidity when flowing in the system, which can play a certain energy-saving role. The temperature controller controls the heater to heat the hydraulic oil in the oil tank 14 to a suitable temperature. Preferably, multiple heaters can be provided, which are evenly arranged in the oil tank 14.

[0032] The oil tank 14 is provided with a limit temperature controller; the limit temperature controller is electrically connected to the heater. As can be seen from the above structure, in order to further ensure the safety of the oil tank 14, a limit temperature controller is provided on the oil tank 14. The limit temperature controller is composed of a plurality of limit temperature components, monitors the temperature in the oil tank 14 in real time, controls the heater to stop working by being electrically connected to the heater, and is electrically connected to the oil cooler 16 to control the oil cooler 16 to increase the working efficiency, so as to avoid the high temperature hydraulic oil after the six-degree-of-freedom platform is used and enters the oil tank 14 without being completely cooled down. The limit temperature controller also further ensures the safety of the overall system.

[0033] Embodiment 4:

[0034] See attached Figures 1-2 On the basis of the third embodiment, a float liquid level switch is provided on the oil tank 14. As can be seen from the above structure, the liquid level in the oil tank 14 can be determined by the float liquid level switch, and when the hydraulic oil in the oil tank 14 is insufficient, it can be discovered in time, helping the operator to quickly determine the problem of system failure.

[0035] The oil tank 14 is provided with a vacuum pressure gauge to detect the pressure balance in the oil tank 14. As can be seen from the above structure, the hydraulic oil has a certain hydraulic energy in the entire system. In order to further ensure the safety of the oil tank 14 and the entire system, it is necessary to detect the pressure in the oil tank 14 to ensure the pressure balance in the oil tank 14 and prevent safety accidents. The pressure in the oil tank 14 is further adjusted through the parameters of the vacuum pressure gauge.

[0036] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hydraulic system for towing a six-degree-of-freedom platform, characterized by: The invention comprises a base; the base is provided with an oil tank (14), a hydraulic oil pump assembly, a pressure regulating device, an electric regulating valve (17), a circulating pump (15), a filtering device (12), a temperature regulating assembly and an oil pipeline; the hydraulic oil pump assembly supplies hydraulic oil to a six-degree-of-freedom platform through the oil tank (14), the hydraulic oil pump assembly, the pressure regulating device, the filtering device (12) and the electric regulating valve (17) through the oil pipeline, and the circulating pump (15) returns the hydraulic oil in the six-degree-of-freedom platform to the oil tank (14) through the oil pipeline in sequence through the circulating pump (15) and the temperature regulating assembly.

2. The hydraulic system for towing a six-degree-of-freedom platform according to claim 1, characterized in that: It also includes an energy storage component; a first pipeline is connected to the oil pipeline between the pressure regulating device and the electric regulating valve (17); the first pipeline is connected to the energy storage component; and a solenoid valve is provided on the first pipeline.

3. The hydraulic system for towing a six-degree-of-freedom platform according to claim 1, characterized in that: The hydraulic oil pump assembly comprises a first main pump (7), a second main pump (8), a third main pump (9), a fourth main pump (10) and a fifth main pump (11); the input ends of the first main pump (7), the second main pump (8), the third main pump (9), the fourth main pump (10) and the fifth main pump (11) are respectively connected to the oil tank (14), and the output ends are connected to the oil pipeline after being collected.

4. The hydraulic system for towing a six-degree-of-freedom platform according to claim 1, characterized in that: It also includes an auxiliary oil pump (6); the input end of the auxiliary oil pump (6) is connected to the oil tank (14) through an oil pipeline, and the output end is connected to the output ends of the first main pump (7), the second main pump (8), the third main pump (9), the fourth main pump (10) and the fifth main pump (11).

5. The hydraulic system for towing a six-degree-of-freedom platform according to claim 1, characterized in that: The temperature adjustment component comprises an oil cooler (16); the oil cooler (16) is arranged on an oil pipeline connecting the six-degree-of-freedom platform and the circulation pump (15).

6. The hydraulic system for towing a six-degree-of-freedom platform according to claim 2, characterized in that: The energy storage assembly comprises a first energy accumulator (1), a second energy accumulator (2), a third energy accumulator (3), a fourth energy accumulator (4) and a fifth energy accumulator (5); the first energy accumulator (1), the second energy accumulator (2), the third energy accumulator (3), the fourth energy accumulator (4) and the fifth energy accumulator (5) are arranged in parallel.

7. The hydraulic system for towing a six-degree-of-freedom platform according to claim 1, characterized in that: The oil tank (14) is provided with a heater assembly (18); the heater assembly (18) comprises a heater and a temperature controller; the temperature controller is electrically connected to the heater.

8. The hydraulic system for towing a six-degree-of-freedom platform according to claim 5, characterized in that: The oil tank (14) is provided with a limit temperature controller; the limit temperature controller is electrically connected to the heating device.

9. The hydraulic system for towing a six-degree-of-freedom platform according to claim 5, characterized in that: The oil tank (14) is provided with a float liquid level switch.

10. The hydraulic system for towing a six-degree-of-freedom platform according to claim 5, characterized in that: The oil tank (14) is provided with a vacuum pressure gauge for detecting the pressure balance in the oil tank (14).

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