Practical training device for aviation hydraulic system

Abstract

The utility model provides a practical training device for an aviation hydraulic system, which comprises a support frame, a panel arranged on the support frame, an oil tank and a hydraulic pump connected with the oil tank through a pipeline, an oil cylinder and a reversing valve are arranged on the panel; an upper cavity of the oil cylinder and the reversing valve are connected through a pipeline to form a first oil way, and a lower cavity of the oil cylinder and the reversing valve are connected through a pipeline to form a second oil way. The hydraulic pump and the reversing valve are connected through a pipeline to form an oil supply pipeline, and the oil tank and the reversing valve are connected through a pipeline to form an oil return pipeline. The oil tank, the hydraulic pump, the reversing valve and the oil cylinder are connected through a pipeline to form a closed loop; students can carry out hydraulic oil pressurization practical training operation, better learn and understand a hydraulic system and improve the teaching effect.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic devices, in particular to an aviation hydraulic system training device. Background Art

[0002] With the development of society and the continuous innovation of science and technology, hydraulic systems play a major role in various engineering machinery and mechanical processing equipment. However, due to the lack of visibility of the transmission medium in the entire hydraulic system during the actual operation of typical products in hydraulic systems and mechanical processing equipment, it is difficult to learn and understand. Therefore, in the teaching process, the training device can help students understand and practice well. For the teaching of aircraft maintenance, taking the hydraulic system of the landing gear as an example, in order to enable students to solve problems faster and better in subsequent maintenance work, students need to better understand the real hydraulic system of the landing gear during the training, and also need to be able to practice hands-on; but the existing training device is mainly composed of hard pipes or hoses, and does not form a closed loop. It can only be used for demonstration teaching, and cannot be used for hydraulic oil pressurization training, which leads to problems such as lack of hands-on practice and difficulty in learning and understanding for students, affecting the teaching effect. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide an aviation hydraulic system training device to solve the above problems.

[0004] The utility model adopts the following scheme:

[0005] The present application provides an aviation hydraulic system training device, comprising a support frame, a panel arranged on the support frame, and also comprising an oil tank and a hydraulic pump connected to the oil tank through a pipeline; an oil cylinder and a reversing valve are arranged on the panel; an upper chamber of the oil cylinder and the reversing valve are connected through a pipeline to form a first oil circuit, and a lower chamber of the oil cylinder and the reversing valve are connected through a pipeline to form a second oil circuit; the hydraulic pump and the reversing valve are connected through a pipeline to form an oil supply pipeline, and the oil tank and the reversing valve are connected through a pipeline to form an oil return pipeline; the oil tank, the hydraulic pump, the reversing valve and the oil cylinder are connected through pipelines to form a closed loop.

[0006] Furthermore, it also includes a first hydraulic gauge and a pressure regulating valve connected in series, and connected between the oil supply pipeline and the oil tank through a pipeline.

[0007] Furthermore, the pressure regulating valve is a tubular manual pressure regulating valve.

[0008] Furthermore, the hydraulic pump is a manual hydraulic pump; and the reversing valve is a manual reversing valve.

[0009] Furthermore, it also includes a second hydraulic gauge, which is arranged on the oil return pipeline.

[0010] Furthermore, a detachable parallel pipeline is provided on the oil supply pipeline.

[0011] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0012] 1. The oil tank, hydraulic pump, reversing valve and oil cylinder are connected through pipelines to form a closed loop, which allows students to conduct hydraulic oil pressurization training operations, better learn and understand the hydraulic system and improve teaching effects;

[0013] 2. By simulating the setting of the detachable parallel pipelines of the aircraft hydraulic oil circuit, the students can better understand the aircraft hydraulic oil circuit. At the same time, the students are provided with disassembly, assembly, leakage location and maintenance training to improve their hands-on ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a front structural diagram of an aviation hydraulic system training device according to an embodiment of the utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of an aviation hydraulic system training device according to an embodiment of the utility model;

[0017] Icons: support frame 1, panel 2, oil tank 3, hydraulic pump 4, oil cylinder 5, reversing valve 6, first oil circuit 7, second oil circuit 8, oil supply pipeline 9, oil return pipeline 10, first hydraulic gauge 11, pressure regulating valve 12, second hydraulic gauge 13, parallel pipeline 14. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] Example

[0020] Combination Figure 1 and Figure 2 As shown, this embodiment provides an aviation hydraulic system training device, including a support frame 1, a panel 2 arranged on the support frame 1, and also including an oil tank 3 and a hydraulic pump 4 connected to the oil tank 3 through a pipeline; an oil cylinder 5 and a reversing valve 6 are arranged on the panel 2; the upper chamber of the oil cylinder 5 and the reversing valve 6 are connected through a pipeline to form a first oil circuit 7, and the lower chamber of the oil cylinder 5 and the reversing valve 6 are connected through a pipeline to form a second oil circuit 8; the hydraulic pump 4 and the reversing valve 6 are connected through a pipeline to form an oil supply pipeline 9, and the oil tank 3 and the reversing valve 6 are connected through a pipeline to form an oil return pipeline 10; the oil tank 3, the hydraulic pump 4, the reversing valve 6 and the oil cylinder 5 are connected through a pipeline to form a closed loop.

[0021] When the hydraulic pump 4 is operating, oil is extracted from the oil tank 3 and pressurized through the oil supply pipeline 9, and enters the upper chamber of the oil cylinder 5 from the first oil circuit 7 through the reversing valve 6, while the oil in the lower chamber of the oil cylinder 5 flows back to the oil tank 3 from the return oil pipeline 10 through the second oil circuit 8 and the reversing valve 6, at which time the hydraulic rod of the oil cylinder 5 retracts; when the reversing valve 6 is switched, the hydraulic pump 4 extracts oil from the oil tank 3 and pressurized through the oil supply pipeline 9, and enters the lower chamber of the oil cylinder 5 from the second oil circuit 8 through the reversing valve 6, while the oil in the upper chamber of the oil cylinder 5 flows back to the oil tank 3 from the return oil pipeline 10 through the first oil circuit 7 and the reversing valve 6, at which time the hydraulic rod of the oil cylinder 5 extends.

[0022] Specifically, in this embodiment, the hydraulic pump 4 is a manual hydraulic pump; the reversing valve 6 is a manual reversing valve; it also includes a first hydraulic gauge 11 and a pressure regulating valve 12 connected in series, and connected between the oil supply pipeline 9 and the oil tank 3 through a pipeline; the pressure regulating valve 12 is a tubular manual pressure regulating valve. A second hydraulic gauge 13 is provided on the return oil pipeline 10 to facilitate observation of whether the pressure value of the return oil pipeline 10 is normal. The application of the manual hydraulic pump, the manual reversing valve and the tubular manual pressure regulating valve allows trainees to better perform hydraulic oil pressurization training operations, thereby allowing trainees to better understand the principles of the hydraulic system. The tubular manual pressure regulating valve realizes manual adjustment and unloading of the system pressure. When the system pressure reaches the pressure value set by the tubular manual pressure regulating valve, the tubular manual pressure regulating valve oil drain port opens, and the hydraulic oil flows back to the oil tank 3 through the oil drain port, thereby controlling the pressure of the system and protecting the hydraulic components in the system. The oil tank 3, the hydraulic pump 4, the reversing valve 6 and the oil cylinder 5 are connected by pipelines to form a closed loop, which allows students to perform hydraulic oil pressurization training operations, better learn and understand the hydraulic system and improve teaching effects. The oil supply pipeline 9 is a hard pipe, which is fixed on the panel 2 and is connected to the manual hydraulic pump, the tubular manual pressure regulating valve and the manual reversing valve respectively through a hose; the manual reversing valve, the oil cylinder 5, the oil tank 3 and the manual hydraulic pump are connected by a hose to better conform to the actual situation of the hydraulic oil pipeline, so that students can better understand and learn.

[0023] Preferably, the oil supply pipeline 9 is provided with a detachable parallel pipeline 14, which simulates the diversion and confluence of the aircraft hydraulic oil circuit, allowing trainees to better understand the aircraft hydraulic oil circuit, while providing trainees with disassembly, assembly, leakage location and maintenance training to improve trainees' hands-on ability.

[0024] In other embodiments, the panels 2 can be respectively arranged on two opposite sides of the support frame 1, and a complete set of the oil cylinder 5, the reversing valve 6, the hydraulic pump 4, etc. can be respectively arranged on the two panels 2. The oil tank 3 is connected by a pipeline to form a complete closed loop, thus forming two independent hydraulic training systems, so that more trainees can perform training operations simultaneously.

[0025] The above are only preferred implementations of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

Claims

1. An aviation hydraulic system training device, comprising a support frame, a panel arranged on the support frame, characterized in that: It also includes an oil tank and a hydraulic pump connected to the oil tank through a pipeline; an oil cylinder and a reversing valve are arranged on the panel; an upper chamber of the oil cylinder and the reversing valve are connected through a pipeline to form a first oil circuit, and a lower chamber of the oil cylinder and the reversing valve are connected through a pipeline to form a second oil circuit; the hydraulic pump and the reversing valve are connected through a pipeline to form an oil supply pipeline, and the oil tank and the reversing valve are connected through a pipeline to form an oil return pipeline; the oil tank, the hydraulic pump, the reversing valve and the oil cylinder are connected through pipelines to form a closed loop.

2. The aviation hydraulic system training device according to claim 1, characterized in that: It also includes a first hydraulic gauge and a pressure regulating valve connected in series, and is connected between the oil supply pipeline and the oil tank through a pipeline.

3. The aviation hydraulic system training device according to claim 2, characterized in that: The pressure regulating valve is a tubular manual pressure regulating valve.

4. The aviation hydraulic system training device according to claim 1, characterized in that: The hydraulic pump is a manual hydraulic pump; the reversing valve is a manual reversing valve.

5. The aviation hydraulic system training device according to claim 1, characterized in that: Also included is a second hydraulic pressure gauge, which is arranged on the oil return pipeline.

6. The aviation hydraulic system training device according to claim 1, characterized in that: The oil supply pipeline is provided with a detachable parallel pipeline.

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