Aviation gear pump performance test device

Abstract

The utility model discloses an aviation gear pump performance test device, and relates to the aviation gear pump technology field, the aviation gear pump performance test device comprises a test bench, an oil tank is arranged in the test bench, the upper surface of the test bench is fixedly connected with a feedback box, and an oil injection pipeline is connected between the feedback box and the oil tank in a penetrating manner; an environment adjusting box capable of simulating and adjusting the detection environment is arranged on the upper surface of the test bed, and a fixing plate is fixedly connected to the upper surface of the feedback box. According to the aviation gear pump performance test device, the environment adjusting boxes are arranged on the upper surface of the test bench, after a worker assembles a gear pump, a telescopic rod is started, the telescopic rod can push the environment adjusting boxes to move at the moment, and the gear pump can be closed by the two sets of environment adjusting boxes at the moment; a temperature regulator and a humidity regulator arranged in the environment adjusting box are adjusted to operate, so that different environments where the gear pump is located are simulated, and the influence of the environments on the performance of the gear pump is detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aviation gear pump, concretely to aviation gear pump performance test device. BACKGROUND

[0002] The air force has become an important striking force of modern war, and its air superiority plays a decisive role in striking the enemy. The performance of the engine and control system of high-performance fighter aircraft has always been the core research problem. The fuel pump is the main component of the fuel control system, and is crucial to improving the performance of the aero-engine and the survivability of the fighter aircraft. In the face of the special needs of high-performance fighter aircraft, how to ensure the hydraulic performance and operational reliability of the fuel pump under low load conditions or idling conditions has become an important issue in the field of fuel pumps. At the same time, how to test and verify the characteristics and reliability of the fuel pump body under extreme conditions is also a problem to be solved

[0003] Prior art (patent number: CN106194739B, publication date: 2018-06-15 Chinese patent) A kind of gear pump detection equipment, including operation platform, thermostat, high oil tank, normal temperature fuel system, low temperature fuel system and oil system, thermostat and high oil tank are supported by rack, test gear pump is provided in thermostat and is fixed by flange, the rack is installed with variable frequency motor, the rotating speed of variable frequency motor is controlled by frequency converter, variable frequency motor drives test gear pump by gearbox, the high oil tank is connected with the oil port of test gear pump in thermostat by electromagnetic valve.This application has simple structure, reasonable design, can carry out low temperature running-in test, normal temperature running-in test and power calibration test, safety valve calibration test and regulator calibration test to gear pump by simulating gear pump working state, ensure that gear pump performance is qualified, and work reliably.

[0004] Although the prior art can carry out low temperature running-in test to gear pump, in the process of detection, the flow of pump will also change after the serious wear of gear pump inside, and the existing device cannot directly feedback detect the wear condition of gear pump inside.

[0005] Therefore, we propose an aviation gear pump performance test device to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an aviation gear pump performance test device to solve the problem of feedback detection of the wear condition of gear pump inside in the process of detection in the above background technology.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: An aviation gear pump performance test device, including the test table, the inside of test table is provided with oil tank, and the upper surface of test table is fixedly connected with feedback box, and the oil injection pipeline is connected between feedback box and oil tank, the upper surface of test table is provided with environmental regulation box that can simulate and adjust the detection environment, the upper surface of feedback box is fixedly connected with fixed plate, and the outside of fixed plate and the inside of feedback box are provided with performance feedback structure, and the cooperation of feedback disc and observation strip arranged in performance feedback structure can feed back the gear pump flow change.

[0008] Further, the upper surface of the test table is provided with a chute, and the upper surface of the test table is further fixedly connected with a fixing seat, and the fixing seat is fixedly connected with an extension rod, and the output end of the extension rod is fixedly connected with the environmental regulation box.

[0009] Further, the lower surface side of the environmental regulation box is fixedly connected with a sliding block, the sliding block is nested in the inside of the chute, the side of the environmental regulation box is provided with a docking port for assisting the fixation of the oil injection pipeline, and the inside of the oil injection pipeline is assembled with the gear pump.

[0010] Further, the environmental regulation box is symmetrically arranged about the center point of the test table, and the sliding block forms a sliding structure with the chute through the environmental regulation box.

[0011] Further, the performance feedback structure comprises a floating plate, the inside of the feedback box is provided with a limiting groove, the side of the floating plate is nested in the inside of the limiting groove, the upper surface of the floating plate is fixedly connected with a toothed plate, and the toothed plate is nested in the upper surface of the feedback box.

[0012] Further, the upper end center of the fixed plate is nested with a rotating shaft, the rear side of the rotating shaft is fixedly connected with a gear body, and the front side of the rotating shaft is fixedly connected with an observation pointer, the front side of the fixed plate is fixedly connected with a feedback disc, and the outside of the feedback disc is fixedly connected with an observation strip.

[0013] Further, the gear body and the toothed plate are engaged with each other, and the observation strip is arranged in an annular array around the center point of the feedback disc.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The oil injection pipeline is assembled with the gear pump, at this time, the oil injection pipeline can deliver the oil in the oil tank to the inside of the gear pump, and then the oil injection pipeline on the side of the feedback box is arranged to return to the inside of the oil tank, the performance feedback structure arranged in the feedback box can feed back the gear pump flow change, thereby feeding back the wear condition in the gear pump.

[0016] 2. After the oil is delivered into the feedback box, the float plate inside the feedback box will gradually move upward due to the buoyancy of the oil. At this time, the float plate does not block the oil drain port on the right side, and the oil can flow out through the oil injection pipe. At this time, the oil inflow and outflow are the same, and the float plate is in a stable state. When wear occurs inside the gear pump, the oil inflow decreases while the oil outflow remains unchanged. At this time, the float plate begins to move downward. The downward-moving float plate will cause the observation pointer to rotate. The operator can observe whether wear has occurred inside the gear pump by observing the direction of the pointer's rotation.

[0017] 3. When the float plate moves upward, it will drive the gear body that meshes with it to rotate through the toothed plate. The rotation of the gear body will drive the observation pointer to rotate through the rotating shaft set at its center. When the position of the float plate changes, the observation pointer will deflect synchronously. At this time, the staff can observe the observation bar range pointed to by the observation pointer to get feedback on the wear of the gear pump.

[0018] 4. An environmental control box is installed on the upper surface of the test bench. After the staff assembles the gear pump, they start the telescopic rod. At this time, the telescopic rod can push the environmental control box to move. The two sets of environmental control boxes can then seal the gear pump. The temperature and humidity regulators installed inside the environmental control boxes are adjusted to simulate different environments in which the gear pump is located, and to test the impact of the environment on the performance of the gear pump.

[0019] 5. When the two sets of environmental control boxes move under the action of the telescopic rod, the slider can be moved synchronously along the slide groove. At this time, the slide groove can limit the slider, thereby further ensuring the stability of the movement of the environmental control boxes and enabling better docking and assembly between the two sets of environmental control boxes. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional sectional view of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the environmental control box of this utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the slider of this utility model;

[0024] Figure 5 This is a three-dimensional sectional view of the feedback box of this utility model;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the observation pointer of this utility model.

[0026] In the diagram: 1. Test bench; 2. Oil tank; 3. Oil injection pipe; 4. Feedback box; 5. Environmental control box; 6. Fixed base; 7. Telescopic rod; 8. Connecting interface; 9. Feedback disc; 10. Observation bar; 11. Observation pointer; 12. Float plate; 13. Slide groove; 14. Slider; 15. Limiting groove; 16. Fixed plate; 17. Rotating shaft; 18. Gear plate; 19. Gear body. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: As Figure 1 and Figure 2 The technical solution shown is provided by the present invention as follows: A performance testing device for an aviation gear pump, which discloses a test bench 1, through which the performance of the gear pump can be tested: an oil tank 2 is provided inside the test bench 1, and a feedback box 4 is fixedly connected to the upper surface of the test bench 1, and an oil injection pipe 3 is connected through the feedback box 4 and the oil tank 2. An interface 8 for auxiliary fixing of the oil injection pipe 3 is provided on the side of the environmental conditioning box 5, and the inner side of the oil injection pipe 3 is assembled with the gear pump.

[0029] The oil is connected to the gear pump via the oil injection pipe 3. The oil injection pipe 3 will transport the oil from the oil tank 2 to the gear pump. The oil will then return to the oil tank 2 via the oil injection pipe 3 set on the side of the feedback box 4. The performance feedback structure set inside the feedback box 4 can provide feedback on the changes in the gear pump flow rate, thereby providing feedback on the wear condition inside the gear pump.

[0030] Example 2: Figure 1 , Figure 3 and Figure 4The technical scheme is shown, the utility model provides the following technical scheme: an aviation gear pump performance test device, disclose environmental regulation box 5, through environmental regulation box 5 simulates the different environment of gear pump, detects the influence of environment on gear pump performance: the upper surface of test bench 1 is provided with the environmental regulation box 5 that can simulate and adjust the detection environment, the upper surface of test bench 1 is provided with the chute 13, and the upper surface of test bench 1 is further fixedly connected with the fixed seat 6, and the fixed seat 6 is fixedly connected with the telescopic link 7, and the output end of telescopic link 7 is fixedly connected with environmental regulation box 5, and the lower surface side of environmental regulation box 5 is fixedly connected with the sliding block 14, and the sliding block 14 is nestedly connected in the inside of chute 13, environmental regulation box 5 is about the center point of test bench 1 and is symmetrically distributed, and the sliding block 14 forms the sliding structure with chute 13 through environmental regulation box 5.

[0031] Test bench 1 upper surface is provided with environmental regulation box 5, when the staff assembles gear pump to be completed, start telescopic link 7, telescopic link 7 can push environmental regulation box 5 to move at this time, two groups of environmental regulation box 5 can be closed to gear pump, adjust temperature regulator and humidity regulator arranged in environmental regulation box 5 to operate, to simulate the different environment of gear pump, detect the influence of environment on gear pump performance, when two groups of environmental regulation box 5 are moved under the driving action of telescopic link 7, the sliding block 14 can be moved along the chute 13 synchronously, at this time, the chute 13 can limit the sliding block 14, to further guarantee the stability of environmental regulation box 5 movement, make two groups of environmental regulation box 5 better and dock assembly.

[0032] Embodiment three: as Figure 1 、 Figure 5 and Figure 6The technical scheme is shown, and the utility model provides the following technical scheme: an aviation gear pump performance test device discloses performance feedback structure, cooperation of feedback disc 9 and observation strip 10 arranged inside performance feedback structure can feedback gear pump flow change: the upper surface of feedback box 4 is fixedly connected with fixed plate 16, and the outside of fixed plate 16 is provided with performance feedback structure with the inside of feedback box 4, cooperation of feedback disc 9 and observation strip 10 arranged inside performance feedback structure can feedback gear pump flow change, performance feedback structure includes floating plate 12, the inside of feedback box 4 is provided with limiting groove 15, the side of floating plate 12 is nestedly connected in the inside of limiting groove 15, the upper surface of floating plate 12 is fixedly connected with gear plate 18, gear plate 18 is nestedly connected on the upper surface of feedback box 4, the upper end center of fixed plate 16 is nestedly connected with rotating shaft 17, and the rear side of rotating shaft 17 is fixedly connected with gear body 19, and the front side of rotating shaft 17 is fixedly connected with observation pointer 11, the front side of fixed plate 16 is fixedly connected with feedback disc 9, and the outside of feedback disc 9 is fixedly connected with observation strip 10, gear body 19 and gear plate 18 are engaged with each other, and observation strip 10 is arranged in annular array about the center point of feedback disc 9.

[0033] When the oil body is transported to the inside of feedback box 4, the floating plate 12 arranged in the inside of feedback box 4 is gradually moved up under the action of the oil body buoyancy, the floating plate 12 does not shield the oil outlet arranged on the right side at this time, and the oil body can flow outwards through the oil injection pipeline 3, at this time, the oil inlet amount is the same as the oil outlet amount, and the floating plate 12 is in a stable state, when wear occurs in the inside of the gear pump, the oil inlet amount decreases, and the oil outlet amount remains unchanged, at this time, the floating plate 12 starts to move down.

[0034] When the floating plate 12 moves up, the floating plate 12 drives the gear body 19 engaged with the same to rotate through the gear plate 18 at this time, the gear body 19 rotates and drives the observation pointer 11 to rotate through the rotating shaft 17 arranged at the center thereof, when the position of the floating plate 12 changes, the observation pointer 11 is deflected synchronously, at this time, the staff can observe the observation strip 10 interval pointed by the observation pointer 11 to feed back the wear condition in the inside of the gear pump.

[0035] The contents not described in detail in the specification belong to the prior art known to the person skilled in the art.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A performance testing device for an aircraft gear pump, comprising a test bench (1), wherein an oil tank (2) is disposed inside the test bench (1), and a feedback box (4) is fixedly connected to the upper surface of the test bench (1), and an oil injection pipe (3) is connected through the feedback box (4) and the oil tank (2), characterized in that: The upper surface of the test bench (1) is provided with an environment adjusting box (5) which can simulate and adjust the detection environment, the upper surface of the feedback box (4) is fixedly connected with a fixed plate (16), and the outer side of the fixed plate (16) and the inside of the feedback box (4) are provided with a performance feedback structure, and the gear pump flow change can be fed back through the cooperation of the feedback disc (9) and the observation strip (10) arranged inside the performance feedback structure.

2. The performance test device for an aero gear pump according to claim 1, characterized in that: The upper surface of the test bench (1) is provided with a sliding groove (13), and the upper surface of the test bench (1) is further fixedly connected with a fixed seat (6), and the fixed seat (6) is fixedly connected with an extension rod (7), and the output end of the extension rod (7) is fixedly connected with the environment adjusting box (5).

3. The performance test device for an aero gear pump according to claim 2, characterized in that: The lower surface side of the environment adjusting box (5) is fixedly connected with a sliding block (14), the sliding block (14) is nested in the inside of the sliding groove (13), the side of the environment adjusting box (5) is provided with a butt joint (8) which can assist in fixing the oil injection pipeline (3), and the inside of the oil injection pipeline (3) is assembled with the gear pump.

4. The performance testing device for an aero gear pump according to claim 3, characterized in that: The environment adjusting box (5) is symmetrically arranged about the center point of the test bench (1), the sliding block (14) forms a sliding structure with the environment adjusting box (5) and the sliding groove (13).

5. The performance testing device for an aero gear pump of claim 1, wherein: The performance feedback structure includes a floating plate (12), the inside of the feedback box (4) is provided with a limiting groove (15), the side of the floating plate (12) is nested in the inside of the limiting groove (15), the upper surface of the floating plate (12) is fixedly connected with a toothed plate (18), and the toothed plate (18) is nested in the upper surface of the feedback box (4).

6. An aero gear pump performance test apparatus as claimed in claim 5, wherein: The upper end center of the fixed plate (16) is nested with a rotating shaft (17), the rear side of the rotating shaft (17) is fixedly connected with a gear body (19), and the front side of the rotating shaft (17) is fixedly connected with an observation pointer (11), the front side of the fixed plate (16) is fixedly connected with a feedback disc (9), and the outer side of the feedback disc (9) is fixedly connected with an observation strip (10).

7. An aero gear pump performance test apparatus as claimed in claim 6, wherein: The gear body (19) and the toothed plate (18) are engaged with each other, and the observation strip (10) is arranged in an annular array around the center point of the feedback disc (9).

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