Anti-overshoot device for running-in test of self-pressurization oil tank

Abstract

The utility model discloses a self-pressurization oil tank running-in test anti-overshoot device in the field of self-pressurization oil tanks, which comprises a bottom plate, vertical rods are fixedly connected to the edge positions of four corners of the top of the bottom plate, a top plate is fixedly connected to the top ends of the vertical rods, and an oil storage tank is fixedly connected to the middle of the top of the top plate. According to the anti-overshoot device for the running-in test of the self-pressurization oil tank, by means of the arrangement of the oil storage tank, the piston plate and the reciprocating mechanism, 60% of oil of the test oil tank is injected into the oil storage tank, the oil makes contact with the bottom of the piston plate, and the oil tank is prevented from overshoot. Then 20% of oil is injected into the test oil tank, the reciprocating mechanism is utilized to enable the piston plate to move in a reciprocating mode, the oil in the oil storage tank is injected into the test oil tank in a reciprocating mode, the oil amount in the test oil tank fluctuates between 20% and 80%, the oil amount is quantified, oil amount overshoot is avoided, and the speed measurement accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-pressurizing oil tanks, in particular to an anti-overshoot device for a running-in test of a self-pressurizing oil tank. Background Art

[0002] In the aviation field, self-pressurizing fuel tanks are generally used. When this type of fuel tank leaves the factory, a running-in test is a mandatory test item. The running-in test requires the fuel tank to reciprocate between two specified oil levels. During the test, the fuel level in the tank is generally changed by changing the fuel supply flow rate.

[0003] At present, when conducting tests, the oil level in the fuel tank often moves higher or lower than the set value. For example, when the oil level in the fuel tank is set to move between 20% and 80%, the actual oil level change will exceed the two oil levels of 10% and 90%. The test found that the overshoot is related to the test flow rate. The larger the flow rate, the greater the overshoot. It is impossible to solve the problem of oil overshoot in the fuel tank test. For this reason, we have proposed a self-pressurized fuel tank running-in test anti-overshoot device. Utility Model Content

[0004] The purpose of the present invention is to provide a self-pressurized oil tank running-in test anti-overshoot device to solve the problem raised in the above background technology that the oil level in the oil tank is often higher or lower than the set value during the test, and the problem of oil overshoot in the oil tank test cannot be solved.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an anti-overshoot device for a self-pressurized oil tank running-in test, comprising a bottom plate, vertical rods fixedly connected at the four corners of the top of the bottom plate, the top ends of the vertical rods fixedly connected to a top plate, an oil storage tank fixedly connected to the top middle portion of the top plate, a connecting pipe fixedly connected to the bottom left portion of the oil storage tank, an oil filling pipe fixedly connected to the bottom right portion of the oil storage tank, a piston plate slidably connected to the interior of the oil storage tank, and a reciprocating mechanism provided inside the oil storage tank;

[0006] The front and rear sides of the top of the piston plate are fixedly connected with fixed plates, the left and right parts between the opposite sides of the front and rear fixed plates are fixedly connected with sliding rods, and the outer side walls of the sliding rods are provided with a stroke buffer mechanism.

[0007] As a further description of the above technical solution:

[0008] The reciprocating mechanism includes a motor base, a servo motor, a turntable, a connecting shaft, a connecting rod and a connecting base. The top rear portion of the oil storage tank is fixedly connected to the motor base, the top of the motor base is fixedly connected to the servo motor, the output shaft end of the servo motor is fixedly connected to the turntable, the front side of the turntable is fixedly connected to the connecting shaft, the outer side wall of the connecting shaft is rotatably connected to the connecting rod, the other end of the connecting rod is rotatably connected to the connecting base, and the bottom of the connecting base is fixedly connected to a mounting plate.

[0009] As a further description of the above technical solution:

[0010] Valves are connected to the ports of the connecting pipe and the oil filling pipe, and the input end of the servo motor is electrically connected to the output end of the external power supply.

[0011] As a further description of the above technical solution:

[0012] An observation port is provided through the middle portion of the right side of the oil storage tank, and tempered glass is fixedly connected to the inside of the observation port. A baffle is fixedly connected to the front end of the connecting shaft, and a through groove is provided through the middle portion of the top of the oil storage tank.

[0013] As a further description of the above technical solution:

[0014] The stroke buffer mechanism includes a connecting plate, a tension spring, a first mounting seat, a deflection plate, a second mounting seat and a mounting plate. The outer side wall of the slide rod is symmetrically slidably connected to the connecting plate, the outer side of the slide rod is sleeved with a tension spring, the opposite sides of the connecting plates at the front and rear are fixedly connected to the first mounting seat, the interior of the first mounting seat is rotatably connected to the deflection plate, the other end of the deflection plate is rotatably connected to the second mounting seat, and the opposite sides of the second mounting seat at the front and rear are fixedly connected to the mounting plate.

[0015] As a further description of the above technical solution:

[0016] Two ends of the tension spring are fixedly connected to opposite sides of the connecting plates of the front and rear portions respectively.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The self-pressurized oil tank running-in test anti-overshoot device utilizes the arrangement of an oil storage tank, a piston plate, and a reciprocating mechanism. 60% of the oil in the test oil tank is injected into the oil storage tank so that the oil contacts the bottom of the piston plate. Then, 20% of the oil is injected into the test oil tank. The reciprocating mechanism is used to make the piston plate move back and forth, and the oil in the oil storage tank is injected back and forth into the test oil tank. The oil amount in the test oil tank fluctuates between 20% and 80%, thereby quantifying the oil amount, avoiding oil overshoot, and improving the accuracy of speed measurement.

[0019] 2. The self-pressurized oil tank running-in test anti-overshoot device, through the arrangement of the fixed plate, the sliding rod and the stroke buffer mechanism, causes the connecting seat to drive the mounting plate and the piston plate to descend when pressed down. When the piston plate contacts the bottom of the oil storage tank, the rotation of the turntable continues to cause the connecting rod to drive the connecting seat to descend, causing the mounting plate to drive the second mounting seat to descend, causing the deflection plate to deflect, thereby causing the connecting plates to move away from each other, driving the tension spring to stretch, so that the connecting rod can deflect to the lowest point, and always keep the piston plate able to press the oil in the oil storage tank into the test oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a self-pressurized fuel tank running-in test anti-overshoot device proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the oil filling pipe installation structure of a self-pressurized oil tank running-in test anti-overshoot device proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of a fuel tank of a self-pressurized fuel tank running-in test anti-overshoot device proposed by the utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of a tension spring for an anti-overshoot device for a self-pressurized fuel tank running-in test proposed by the present invention.

[0024] In the figure: 100, bottom plate; 200, vertical rod; 300, top plate; 400, oil storage tank; 410, connecting pipe; 420, oil filling pipe; 430, piston plate; 440, motor seat; 450, servo motor; 460, turntable; 470, connecting shaft; 480, connecting rod; 490, connecting seat; 500, fixed plate; 510, sliding rod; 520, connecting plate; 530, tension spring; 540, first mounting seat; 550, deflection plate; 560, second mounting seat; 570, mounting plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] The utility model provides a self-pressurized oil tank running-in test anti-overshoot device, which makes the oil volume inside the test tank fluctuate between 20% and 80%, so that the oil volume is quantitative, avoids oil overshoot, and improves the accuracy of speed measurement. Figure 1-4 , including a bottom plate 100, vertical rods 200 are fixedly connected at the four corners of the top of the bottom plate 100, the top of the vertical rods 200 is fixedly connected to a top plate 300, and the top middle of the top plate 300 is fixedly connected to an oil storage tank 400;

[0029] Please refer again Figure 2 The left bottom portion of the oil storage tank 400 is fixedly connected to a connecting pipe 410, the right bottom portion of the oil storage tank 400 is fixedly connected to an oil filling pipe 420, the interior of the oil storage tank 400 is slidably connected to a piston plate 430, and a reciprocating mechanism is provided inside the oil storage tank 400;

[0030] Please refer again Figure 2 The front and rear sides of the top of the piston plate 430 are fixedly connected with a fixed plate 500, and the left and right parts between the opposite sides of the front and rear fixed plates 500 are fixedly connected with a slide rod 510, and the outer wall of the slide rod 510 is provided with a stroke buffer mechanism.

[0031] Please refer again Figure 3, the reciprocating mechanism includes a motor base 440, a servo motor 450, a turntable 460, a connecting shaft 470, a connecting rod 480 and a connecting base 490;

[0032] Please refer again Figure 3 The top rear portion of the oil storage tank 400 is fixedly connected to a motor base 440 , the top of the motor base 440 is fixedly connected to a servo motor 450 , and the end of the output shaft of the servo motor 450 is fixedly connected to a turntable 460 ;

[0033] Please refer again Figure 3 The front side of the turntable 460 is fixedly connected to the connecting shaft 470, the outer side wall of the connecting shaft 470 is rotatably connected to the connecting rod 480, the other end of the connecting rod 480 is rotatably connected to the connecting seat 490, and the bottom of the connecting seat 490 is fixedly connected to the mounting plate 570.

[0034] To sum up, by utilizing the setting of the oil storage tank 400, the piston plate 430 and the reciprocating mechanism, 60% of the oil in the test oil tank is injected into the oil storage tank 400 so that the oil contacts the bottom of the piston plate 430, and then 20% of the oil is injected into the test oil tank. By utilizing the reciprocating mechanism, the piston plate 430 moves back and forth, and the oil in the oil storage tank 400 is reciprocally injected into the test oil tank, so that the oil amount inside the test oil tank fluctuates between 20%-80%, so that the oil amount is quantified, oil overshoot is avoided, and the accuracy of speed measurement is improved.

[0035] Please refer again Figure 3 The ports of the connecting pipe 410 and the oil filling pipe 420 are both connected to valves, and the input end of the servo motor 450 is electrically connected to the output end of the external power supply.

[0036] Please refer again Figure 3 An observation port is provided through the middle of the right side of the oil storage tank 400, and tempered glass is fixedly connected to the inside of the observation port. A baffle is fixedly connected to the front end of the connecting shaft 470, and a through groove is provided through the middle of the top of the oil storage tank 400.

[0037] Please refer again Figure 4 The stroke buffer mechanism includes a connecting plate 520, a tension spring 530, a first mounting seat 540, a deflection plate 550, a second mounting seat 560 and a mounting plate 570. The outer wall of the slide rod 510 is symmetrically slidably connected to the connecting plate 520, and the outer side of the slide rod 510 is sleeved with a tension spring 530. The opposite sides of the front and rear connecting plates 520 are fixedly connected to the first mounting seat 540. The inside of the first mounting seat 540 is rotatably connected to the deflection plate 550, and the other end of the deflection plate 550 is rotatably connected to the second mounting seat 560. The opposite sides of the front and rear second mounting seats 560 are fixedly connected to the mounting plate 570.

[0038] Please refer again Figure 4The two ends of the tension spring 530 are fixedly connected to the opposite sides of the front and rear connecting plates 520 respectively.

[0039] To sum up, through the arrangement of the fixed plate 500, the sliding rod 510 and the stroke buffer mechanism, when pressing down, the connecting seat 490 drives the mounting plate 570 and the piston plate 430 to descend. When the piston plate 430 contacts the bottom of the oil storage tank 400, the rotation of the turntable 460 continues to drive the connecting rod 480 to descend, so that the mounting plate 570 drives the second mounting seat 560 to descend, causing the deflection plate 550 to deflect, thereby causing the connecting plates 520 to move away from each other, driving the tension spring 530 to stretch, so that the connecting rod 480 can deflect to the lowest point, and always keep the piston plate 430 to press the oil in the oil storage tank 400 into the test oil tank.

[0040] During specific use, personnel in this technical field inject 20%D of oil into the test tank during testing, and then connect the test tank to the connecting pipe 410. Before injecting oil into the oil storage tank 400, adjust the piston plate 430 to the lowest point, and then inject 60% of the oil in the test tank into the oil storage tank 400 so that the oil level fits the bottom of the piston plate 430. Lift the piston plate 430 to deflect the connecting rod 480 and the turntable 460. During testing, open the valve of the connecting pipe 410, close the valve of the oil injection pipe 420, start the servo motor 450, and rotate the turntable 460 through the rotation of the servo motor 450, driving the connecting rod 480 to rotate. Deflection, when pressed down, causes the connecting seat 490 to drive the mounting plate 570 and the piston plate 430 to descend. When the piston plate 430 contacts the bottom of the oil storage tank 400, the rotation of the turntable 460 continues to cause the connecting rod 480 to drive the connecting seat 490 to descend, causing the mounting plate 570 to drive the second mounting seat 560 to descend, causing the deflection plate 550 to deflect, thereby causing the connecting plates 520 to move away from each other, driving the tension spring 530 to stretch, so that the connecting rod 480 can deflect to the lowest point, pressing 60% of the oil into the test oil tank, making the oil volume inside the test oil tank 80%, and when the piston plate 430 rises, the oil is drawn out again, thereby testing the oil tank.

[0041] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A self-pressurized oil tank running-in test anti-overshoot device, comprising a bottom plate (100), vertical rods (200) fixedly connected at the four corners of the top of the bottom plate (100), a top plate (300) fixedly connected at the top of the vertical rods (200), and an oil storage tank (400) fixedly connected at the middle of the top of the top plate (300), characterized in that: The left bottom portion of the oil storage tank (400) is fixedly connected to a connecting pipe (410), the right bottom portion of the oil storage tank (400) is fixedly connected to an oil filling pipe (420), the interior of the oil storage tank (400) is slidably connected to a piston plate (430), and a reciprocating mechanism is provided inside the oil storage tank (400); The front and rear sides of the top of the piston plate (430) are fixedly connected to a fixed plate (500), and the left and right parts between the opposite sides of the front and rear fixed plates (500) are fixedly connected to a sliding rod (510), and the outer side wall of the sliding rod (510) is provided with a stroke buffer mechanism.

2. The anti-overshoot device for a self-pressurized fuel tank run-in test according to claim 1, characterized in that: The reciprocating mechanism comprises a motor base (440), a servo motor (450), a turntable (460), a connecting shaft (470), a connecting rod (480) and a connecting base (490); the top rear portion of the oil storage tank (400) is fixedly connected to the motor base (440); the top of the motor base (440) is fixedly connected to the servo motor (450); the end of the output shaft of the servo motor (450) is fixedly connected to the turntable (460); the front side of the turntable (460) is fixedly connected to the connecting shaft (470); the outer side wall of the connecting shaft (470) is rotatably connected to the connecting rod (480); the other end of the connecting rod (480) is rotatably connected to the connecting base (490); and the bottom of the connecting base (490) is fixedly connected to the mounting plate (570).

3. The anti-overshoot device for a self-pressurized fuel tank run-in test according to claim 2, characterized in that: Valves are connected to the ports of the connecting pipe (410) and the oil filling pipe (420), and the input end of the servo motor (450) is electrically connected to the output end of an external power supply.

4. The anti-overshoot device for a self-pressurized fuel tank run-in test according to claim 2, characterized in that: An observation port is provided through the middle portion of the right side of the oil storage tank (400), and a tempered glass is fixedly connected to the inside of the observation port. A baffle is fixedly connected to the front end of the connecting shaft (470), and a through slot is provided through the middle portion of the top of the oil storage tank (400).

5. The anti-overshoot device for a self-pressurized fuel tank run-in test according to claim 1, characterized in that: The stroke buffer mechanism includes a connecting plate (520), a tension spring (530), a first mounting seat (540), a deflection plate (550), a second mounting seat (560) and a mounting plate (570); the outer side wall of the slide rod (510) is symmetrically slidably connected to the connecting plate (520); the outer side of the slide rod (510) is sleeved with a tension spring (530); the opposite sides of the connecting plate (520) at the front and rear are fixedly connected to the first mounting seat (540); the interior of the first mounting seat (540) is rotatably connected to the deflection plate (550); the other end of the deflection plate (550) is rotatably connected to the second mounting seat (560); the opposite sides of the second mounting seat (560) at the front and rear are fixedly connected to the mounting plate (570).

6. The anti-overshoot device for a self-pressurized fuel tank run-in test according to claim 5, characterized in that: Both ends of the tension spring (530) are fixedly connected to opposite sides of the connecting plates (520) at the front and rear portions, respectively.

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