Fuel nozzle test platform

Abstract

The invention, which relates to the technical field of the engine nozzle test, discloses a fuel nozzle test platform comprising two test tubes, a controller, a test ring, a support and an adjustment test assembly. The adjusting and testing assembly comprises a sliding frame, a micro extrusion electric cylinder, a positioning pressure sensor, a double-arc elastic piece, an arc-shaped groove, a T-shaped block, an arc-shaped wide face pressing plate, a corner elastic piece, an arc-shaped narrow face pressing plate and a V-shaped groove adjusting pad. By adjusting the test assembly, the device has the advantages that the device adapts to different test nozzle structural characteristics, synchronous constant force simulation plugging can be performed on different positions of the test nozzle, the accuracy and reliability of nozzle performance evaluation are guaranteed, and the adjustable applicability of the test nozzle jet simulation plugging test is improved, so that the problems of complicated operation, low efficiency and high efficiency are solved. The accuracy and reliability of nozzle performance evaluation are influenced, and the adjustable applicability of the fuel nozzle injection simulation plugging test is poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engine nozzle test, more particularly, the present application relates to a fuel nozzle test platform. BACKGROUND

[0002] In the aviation engine power equipment, the test of fuel nozzle flow is very important for the engine performance, combustion efficiency and operation stability, and the quality of fuel nozzle directly affects the combustion effect of fuel and the performance of engine. In order to test the flow of nozzle more accurately, fuel nozzle test machine is needed.

[0003] Through the search in the existing published technical literature, the patent with the patent publication number CN111649950A discloses a nozzle performance test platform, which can test the single nozzle spray cone angle and atomization characteristics without simulating the back pressure of combustion chamber and the state of head flow field. When low-temperature atomization test is carried out, the requirement of ensuring that the nozzle does not freeze can be met. When high-temperature atomization test is carried out, the risk of high-temperature oil mist being ignited can be effectively reduced. However, the technology still has the following problems.

[0004] In the fuel nozzle injection test, although the injection flow test can be completed, due to the diversity of nozzle models and the difference in size, the positions and angles of V-shaped groove side, opposite side and groove corner orifice are significantly different. In actual working conditions, the clogging position of the orifice is random. The existing test device sealing structure is mostly fixed design, which lacks flexible adjustment ability, and it is difficult to adjust the specific orifice according to the structure characteristics of different nozzles and test requirements, so it is difficult to carry out adjustable simulation sealing. This leads to the need to frequently replace the sealing tool during the test process, which is complex and inefficient. At the same time, the sealing is not strict, which causes the flow data to be distorted, affects the accuracy and reliability of nozzle performance evaluation, and the adjustable applicability of fuel nozzle injection simulation sealing test is poor. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides the following technical scheme: a fuel nozzle test platform, comprising two test pipes and a controller, one end of each of the test pipes is fixedly connected with a test ring, one end of the test ring is fixedly connected with a support, and an adjusting and testing assembly is arranged above the support; the adjusting and testing assembly comprises a sliding frame arranged above the support, a micro extrusion electric cylinder is fixedly connected to the upper surface of the sliding frame, a positioning pressure sensor is mounted at the output end of the micro extrusion electric cylinder, a double-arc spring sheet is fixedly mounted at the top end of the positioning pressure sensor, arc-shaped grooves are formed in the two sides of the double-arc spring sheet, a T-shaped block is fixedly connected to the top end of the double-arc spring sheet, an arc-shaped wide-face pressing plate is fixedly mounted at the top end of the T-shaped block, a corner spring sheet is fixedly connected to the top end of the arc-shaped wide-face pressing plate, an arc-shaped narrow-face pressing plate is fixedly connected to one end of the corner spring sheet, and a V-shaped groove adjusting pad is fixedly connected to the outer wall of the arc-shaped wide-face pressing plate.

[0006] Preferably, the output end of the micro extrusion electric cylinder is fixedly connected with the sensing end of the positioning pressure sensor, the double-arc spring sheet, the arc-shaped wide-face pressing plate and the arc-shaped narrow-face pressing plate are all made of carbon fiber material, the upper surface of the arc-shaped narrow-face pressing plate has a larger cross-sectional area than the bottom end thereof, the top end of the arc-shaped wide-face pressing plate has a smaller cross-sectional area than the bottom end thereof, the V-shaped groove adjusting pad and the double-arc spring sheet are both fixedly connected with the arc-shaped narrow-face pressing plate, the V-shaped groove adjusting pad is made of silica gel pad material, and the positioning pressure sensor and the micro extrusion electric cylinder are both electrically connected with the controller. A linkage spring strip is arranged between the arc-shaped wide-face pressing plate and the arc-shaped narrow-face pressing plate and close to the corner spring sheet, and the arc-shaped wide-face pressing plate and the arc-shaped narrow-face pressing plate are both fixedly connected with the linkage spring strip.

[0007] In use, the micro extrusion electric cylinder pushes the positioning pressure sensor, the double-arc spring sheet pushes the T-shaped block to move, the arc-shaped wide-face pressing plate drives the corner spring sheet to move, the arc-shaped narrow-face pressing plate drives the V-shaped groove adjusting pad to move, and the corner position of the V-shaped groove adjusting pad is attached to the V-shaped corner position of the inner wall of the test nozzle. The arc-shaped grooves on the two sides of the double-arc spring sheet are deformed, and the T-shaped block continues to extrude the arc-shaped wide-face pressing plate. The arc-shaped wide-face pressing plate drives the corner spring sheet to deform and adjust the angle position, and the wide face of the V-shaped groove adjusting pad realizes adjustable plugging at the V-shaped wide face jet hole position of the inner wall of the test nozzle. At the same time, the corner spring sheet extrudes the corner position of the V-shaped groove adjusting pad, so that the corner position of the V-shaped groove adjusting pad can realize adjustable plugging at the corner jet hole position of the inner wall of the test nozzle, the arc-shaped narrow-face pressing plate drives the corner spring sheet to deform, and the narrow face of the V-shaped groove adjusting pad realizes adjustable anti-blocking at the V-shaped narrow face jet hole position of the inner wall of the test nozzle.

[0008] Preferably, the bottom end of the micro extrusion cylinder is fixedly installed with a sleeved sliding block; the sleeved sliding block is in sliding connection with the sliding frame, one side of the sleeved sliding block is fixedly installed with an electromagnet, the upper surface of the electromagnet is magnetically connected with a magnetic strip, the magnetic strip is fixedly connected with the sliding frame, the inner wall of the sleeved sliding block is in sliding connection with a guide rod, and the guide rod is fixedly connected with the sliding frame; the top end of the support is fixedly connected with a micro rotary motor, the output end of the micro rotary motor is fixedly connected with a rotating shaft, one end of the rotating shaft is installed with a micro adjusting cylinder, the output end of the micro adjusting cylinder is fixedly connected with the sliding frame, the electromagnet and the micro adjusting cylinder are electrically connected with the controller, and the micro rotary motor is electrically connected with the controller; the upper side of the V-shaped groove adjusting pad is provided with a test nozzle, and the test nozzle is detachably installed with the V-shaped groove adjusting pad. The rotating shaft and the sliding frame are provided with a gap, and the inner wall of the sliding frame and the outer wall of the sleeved sliding block are smooth surfaces. The output end surface of the micro adjusting cylinder is parallel to the lower inclined surface of the sliding frame.

[0009] In use, different models of test nozzles are selected and fixed on the test ring by bolts. The controller turns off the electromagnet, moves the micro extrusion cylinder, and the micro extrusion cylinder drives the sleeved sliding block to tilt and move upward, and the sleeved sliding block tilts and moves upward along the inner wall of the sliding frame, the electromagnet tilts and moves upward on the magnetic strip, when the micro extrusion cylinder tilts and moves upward to the specified position, the electromagnet is powered to be magnetically attracted to the magnetic strip, the micro adjusting cylinder drives the sliding frame to tilt and move upward, and the micro extrusion cylinder drives the positioning pressure sensor to tilt and move upward, the double-arc elastic sheet makes the arc-shaped narrow surface pressing plate and the arc-shaped wide surface pressing plate tilt and move upward, the arc-shaped narrow surface pressing plate drives the corner position of the V-shaped groove adjusting pad to tilt and move upward, the corner position of the V-shaped groove adjusting pad is adjusted to be aligned with the inner wall V-shaped area of the test nozzle, the micro rotary motor drives the rotating shaft to rotate, the sliding frame drives the micro extrusion cylinder to rotate, the double-arc elastic sheet drives the arc-shaped narrow surface pressing plate to rotate, and the V-shaped groove adjusting pad is rotated to the hole blocking position of the inner wall V-shaped area of the test nozzle.

[0010] Preferably, the lower surface of the test tube is provided with a table body, and the two test tubes are fixedly connected with the table body; the controller is fixed on one side of the table body; the outer wall of the test tube is fixedly provided with a vibration sensor, one side of the vibration sensor is provided with a test pressure sensor, the test pressure sensor is fixedly connected with the test tube, and the other end of the test tube is fixedly communicated with a flow meter; one end of the flow meter is threadedly communicated with a concave pipe; the outer wall of the concave pipe is fixedly communicated with a booster pipe, the bottom end of the booster pipe is provided with a booster pump, and the input end of the booster pump is fixedly communicated with a fuel storage tank. The vibration sensor and the test pressure sensor are electrically connected with the controller, and the flow meter is electrically connected with the controller; the booster pump and the liquid inlet valve are electrically connected with the controller. The bottom end of the fuel storage tank is fixedly communicated with the liquid inlet valve, and the inner wall of the fuel storage tank is a smooth surface.

[0011] In use, the booster pump pressurizes and delivers fuel into the booster pipe, the fuel is delivered into the concave pipe through the booster pipe, the fuel is delivered into the test tube through the flow meter, the vibration sensor on the test tube detects the vibration value, when the vibration value is within the set value of the controller, the test pressure sensor detects the fuel pressure value in the test tube, the fuel is delivered into the test nozzle through the test ring, and the fuel is sprayed out through the V-shaped area nozzle of the test nozzle. The V-shaped groove adjusting pad blocks the V-shaped corner position of the inner wall of the test nozzle to realize simulation, the V-shaped groove adjusting pad blocks the V-shaped wide surface position of the inner wall of the test nozzle to realize simulation, and the V-shaped groove adjusting pad can also block the V-shaped narrow surface position of the inner wall of the test nozzle to realize simulation. Whether the values of the vibration sensor, the test pressure sensor and the flow meter are within the set range of the controller is observed.

[0012] Technical effects and advantages of the present application: 1. The test assembly of the present application can push the double-arc elastic sheet to move, the corner position of the V-shaped groove adjusting pad can be attached to the corner position of the inner wall of the test nozzle, the arc-shaped grooves on both sides of the double-arc elastic sheet can be deformed, the corner position of the V-shaped groove adjusting pad can be adjusted to block the nozzle position of the inner wall of the test nozzle, the narrow surface of the V-shaped groove adjusting pad can be adjusted to prevent the nozzle position of the V-shaped narrow surface of the inner wall of the test nozzle, the different positions (V-shaped wide surface nozzle, corner nozzle, V-shaped narrow surface nozzle) of the inner wall of the test nozzle can be adjusted to block, different test nozzle structures can be adapted without frequent replacement of blocking tools, the test efficiency is improved, the different positions of the test nozzle can be simultaneously blocked with constant force, the test nozzle flow data distortion caused by insufficient blocking is avoided, the accuracy and reliability of nozzle performance evaluation are ensured, and the adjustable applicability of the test nozzle jet simulation blocking test is improved.

[0013] 2、 The micro extrusion electric cylinder drives the sleeve sliding block to tilt and move up, the sleeve sliding block tilts and moves up along the outer wall of the guide rod, the micro extrusion electric cylinder tilts and moves up to the specified position, the electromagnet is magnetically attracted to the magnetic attraction strip, the micro adjusting electric cylinder pushes the sliding frame to tilt and move up, the corner position of the V-shaped groove adjusting pad is aligned and adjusted with the inner wall V-shaped area of the test nozzle, the micro rotary motor drives the rotating shaft to rotate, the V-shaped groove adjusting pad is rotated to the hole position plugging position of the inner wall V-shaped area of the test nozzle, meets the test nozzle jet simulation plugging diversification test demand, improves the test efficiency and accuracy.

[0014] 3、 The vibration sensor and the test pressure sensor are used for real-time monitoring of vibration and pressure values, the flow meter is used for monitoring fuel injection flow value, the V-shaped groove adjusting pad can flexibly simulate the plugging condition of the test nozzle at different positions of the jet hole, the test judgment is based on the comparison of multi-sensor data and the set range of the controller, and multi-stage judgment is used to determine whether the test nozzle is qualified or not, and the simulation plugging test accuracy of the test nozzle is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the fuel nozzle test platform of the application.

[0016] Figure 2 It is a schematic diagram of the overall structure of the fuel nozzle test platform of the application.

[0017] Figure 3 It is a schematic diagram of the overall structure of the fuel nozzle test platform of the application.

[0018] Figure 4 It is a schematic diagram of the overall structure of the fuel nozzle test platform of the application.

[0019] Figure 5 It is a schematic diagram of the overall structure of the fuel nozzle test platform of the application.

[0020] Figure 6 It is a schematic diagram of the overall structure of the fuel nozzle test platform of the application.

[0021] Figure 7 It is a schematic diagram of the overall structure of the fuel nozzle test platform of the application.

[0022] Figure 8 It is a schematic diagram of the overall structure of the fuel nozzle test platform of the application.

[0023] The figure marks are: 1, test tube; 2, test ring; 3, support; 4, sliding frame; 5, micro extrusion electric cylinder; 6, positioning pressure sensor; 7, double-arc elastic sheet; 8, arc-shaped groove; 9, T-shaped block; 10, arc-shaped wide surface pressing plate; 11, corner elastic sheet; 12, arc-shaped narrow surface pressing plate; 13, V-shaped groove adjusting pad; 14, sleeving sliding block; 15, electromagnet; 16, magnetic attraction strip; 17, guide rod; 18, micro rotary motor; 19, rotating shaft; 20, micro adjusting electric cylinder; 21, controller; 22, test nozzle; 23, table body; 24, vibration sensor; 25, test pressure sensor; 26, flowmeter; 27, concave pipe; 28, booster pipe; 29, booster pump; 30, fuel storage tank; 31, liquid inlet valve; 32, linkage elastic strip. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] As shown in the fuel nozzle test platform shown in the accompanying drawings, Figure 1 As shown in the fuel nozzle test platform shown in the accompanying drawings, Figure 8 The fuel nozzle test platform is provided with an adjusting test assembly. The adjusting test assembly can adjust and block the V-shaped wide surface injection hole, the corner injection hole and the V-shaped narrow surface injection hole at different positions of the inner wall of the test nozzle 22, improve the test efficiency, and simultaneously block the different positions of the test nozzle 22 with a synchronous constant force to avoid the distortion of the flow data of the test nozzle 22 caused by the unsealed blockage, improve the adjustable applicability of the test nozzle 22 in the injection simulation blockage test, and the specific structure of the adjusting test assembly is as follows.

[0026] In the embodiment, as shown in the accompanying drawings, Figure 1 As shown in the fuel nozzle test platform shown in the accompanying drawings, Figure 5 As shown in the fuel nozzle test platform shown in the accompanying drawings, The adjusting test assembly comprises a sliding frame 4 arranged above the support 3, the upper surface of the sliding frame 4 is fixedly connected with a micro extrusion electric cylinder 5, the output end of the micro extrusion electric cylinder 5 is installed with a positioning pressure sensor 6, the top end of the positioning pressure sensor 6 is fixedly installed with a double-arc elastic sheet 7, the two sides of the double-arc elastic sheet 7 are provided with arc-shaped grooves 8, the top end of the double-arc elastic sheet 7 is fixedly connected with a T-shaped block 9, the top end of the T-shaped block 9 is fixedly installed with an arc-shaped wide surface pressing plate 10, the top end of the arc-shaped wide surface pressing plate 10 is fixedly connected with a corner elastic sheet 11, one end of the corner elastic sheet 11 is fixedly connected with an arc-shaped narrow surface pressing plate 12, and the outer wall of the arc-shaped wide surface pressing plate 10 is fixedly connected with a V-shaped groove adjusting pad 13.

[0027] The output end of the micro extrusion electric cylinder 5 is fixedly connected with the sensing end of the positioning pressure sensor 6, the double-arc spring sheet 7, the arc-shaped wide surface pressing plate 10 and the arc-shaped narrow surface pressing plate 12 are all made of carbon fiber material. The upper surface of the arc-shaped narrow surface pressing plate 12 has a larger cross-sectional area than the bottom end thereof, and the top end of the arc-shaped wide surface pressing plate 10 has a smaller cross-sectional area than the bottom end thereof; the V-shaped groove adjusting pad 13 and the double-arc spring sheet 7 are both fixedly connected with the arc-shaped narrow surface pressing plate 12, and the V-shaped groove adjusting pad 13 is made of silica gel pad material; the positioning pressure sensor 6 and the micro extrusion electric cylinder 5 are both electrically connected with the controller 21.

[0028] In the embodiment, as shown in FIG. 1, the arc-shaped wide surface pressing plate 10 and the arc-shaped narrow surface pressing plate 12 are both fixedly connected with the double-arc spring sheet 7. Figure 5 As shown in FIG. 1, the arc-shaped wide surface pressing plate 10 and the arc-shaped narrow surface pressing plate 12 are both fixedly connected with the linkage spring strip 32, so that the arc-shaped wide surface pressing plate 10 drives the linkage spring strip 32 to deform, and the arc-shaped wide surface pressing plate 10 and the arc-shaped narrow surface pressing plate 12 can change the angle.

[0029] In the embodiment, as shown in FIG. 1, the arc-shaped wide surface pressing plate 10 and the arc-shaped narrow surface pressing plate 12 are both fixedly connected with the linkage spring strip 32. Figure 5 As shown in FIG. 1, the bottom end of the micro extrusion electric cylinder 5 is fixedly installed with the sleeved sliding block 14. Figure 6 The sleeved sliding block 14 is slidably connected with the sliding frame 4, one side of the sleeved sliding block 14 is fixedly installed with the electromagnet 15, the upper surface of the electromagnet 15 is magnetically connected with the magnetic attraction strip 16, the magnetic attraction strip 16 is fixedly connected with the sliding frame 4, the inner wall of the sleeved sliding block 14 is slidably connected with the guide rod 17, and the guide rod 17 is fixedly connected with the sliding frame 4.

[0030] The top end of the support 3 is fixedly connected with the micro rotary motor 18, the output end of the micro rotary motor 18 is fixedly connected with the rotating shaft 19, one end of the rotating shaft 19 is installed with the micro adjusting electric cylinder 20, the output end of the micro adjusting electric cylinder 20 is fixedly connected with the sliding frame 4, the electromagnet 15 and the micro adjusting electric cylinder 20 are both electrically connected with the controller 21, the micro rotary motor 18 is electrically connected with the controller 21, the upper side of the V-shaped groove adjusting pad 13 is provided with the test nozzle 22, and the test nozzle 22 is detachably installed with the V-shaped groove adjusting pad 13. The rotating shaft 19 and the sliding frame 4 are provided with a gap, and the inner wall of the sliding frame 4 and the outer wall of the sleeved sliding block 14 are both smooth surfaces. The output end surface of the micro adjusting electric cylinder 20 is parallelly arranged with the lower inclined surface of the sliding frame 4.

[0031] In the embodiment, as shown in FIG. 1, the arc-shaped wide surface pressing plate 10 and the arc-shaped narrow surface pressing plate 12 are both fixedly connected with the linkage spring strip 32. Figure 7 As shown in FIG. 1, the arc-shaped wide surface pressing plate 10 and the arc-shaped narrow surface pressing plate 12 are both fixedly connected with the linkage spring strip 32. Figure 8As shown, the lower surface of the test tube 1 is provided with a table body 23, and the two test tubes 1 are fixedly connected with the table body 23; the controller 21 is fixed on one side of the table body 23, the outer wall of the test tube 1 is fixedly provided with a vibration sensor 24, one side of the vibration sensor 24 is provided with a test pressure sensor 25, the test pressure sensor 25 is fixedly connected with the test tube 1, one end of the test tube 1 is fixedly communicated with a flow meter 26, and one end of the flow meter 26 is threadedly communicated with a concave pipe 27; the outer wall of the concave pipe 27 is fixedly communicated with a booster pipe 28, the bottom end of the booster pipe 28 is provided with a booster pump 29, and the input end of the booster pump 29 is fixedly communicated with a fuel storage tank 30. The vibration sensor 24 and the test pressure sensor 25 are electrically connected with the controller 21, the booster pump 29 and a liquid inlet valve 31 are electrically connected with the controller 21, and the flow meter 26 is electrically connected with the controller 21. The bottom end of the fuel storage tank 30 is fixedly communicated with the liquid inlet valve 31, and the inner wall of the fuel storage tank 30 is a smooth surface.

[0032] The working principle of the fuel nozzle test platform is as follows: Firstly, when the present application is moved and adjusted, different models of test nozzles 22 are fixed on the test ring 2 through bolts. The controller 21 is closed to the electromagnet 15, the electromagnet 15 no longer magnetically attracts the magnetic attraction strip 16, the micro extrusion cylinder 5 is moved, the micro extrusion cylinder 5 drives the sleeve sliding block 14 to tilt and move upwards, the sleeve sliding block 14 tilts and moves upwards along the outer wall of the guide rod 17, and the sleeve sliding block 14 tilts and moves upwards along the inner wall of the sliding frame 4, and the sleeve sliding block 14 drives the electromagnet 15 to tilt and move upwards, and the electromagnet 15 tilts and moves upwards on the magnetic attraction strip 16. When the micro extrusion cylinder 5 tilts and moves upwards to the specified position, the sleeve sliding block 14 is fixed by the electromagnet 15 being magnetically attracted on the magnetic attraction strip 16. Then the controller 21 starts the micro adjustment cylinder 20, the micro adjustment cylinder 20 drives the sliding frame 4 to tilt and move upwards, the sliding frame 4 drives the micro extrusion cylinder 5 to tilt and move upwards, and the micro extrusion cylinder 5 drives the positioning pressure sensor 6 to tilt and move upwards. The positioning pressure sensor 6 drives the double-arc spring piece 7 to tilt and move upwards, the double-arc spring piece 7 drives the arc-shaped narrow surface pressing plate 12 and the arc-shaped wide surface pressing plate 10 to tilt and move upwards, the arc-shaped narrow surface pressing plate 12 drives the corner position of the V-shaped groove adjusting pad 13 to tilt and move upwards, the corner position of the V-shaped groove adjusting pad 13 is aligned and adjusted with the inner wall V-shaped area of the test nozzle 22, and then the controller 21 closes the micro adjustment cylinder 20.

[0033] The controller 21 starts the micro rotary motor 18, the micro rotary motor 18 drives the rotating shaft 19 to rotate, the rotating shaft 19 drives the micro adjusting cylinder 20 to rotate, the micro adjusting cylinder 20 drives the sliding frame 4 to rotate, the sliding frame 4 drives the micro extrusion cylinder 5 to rotate, the micro extrusion cylinder 5 drives the positioning pressure sensor 6 to rotate, the positioning pressure sensor 6 drives the double-arc elastic sheet 7 to rotate, the double-arc elastic sheet 7 drives the arc-shaped narrow surface pressing plate 12 to rotate, the arc-shaped narrow surface pressing plate 12 drives the V-shaped groove adjusting pad 13 to rotate, and the V-shaped groove adjusting pad 13 is rotated to the hole position blocking position of the V-shaped area of the inner wall of the test nozzle 22.

[0034] Secondly, when the test is adjusted, the micro extrusion cylinder 5 pushes the positioning pressure sensor 6, the positioning pressure sensor 6 pushes the double-arc elastic sheet 7 to move, the double-arc elastic sheet 7 pushes the T-shaped block 9 to move, the T-shaped block 9 drives the arc-shaped wide surface pressing plate 10 to move, the arc-shaped wide surface pressing plate 10 drives the corner elastic sheet 11 to move, and the double-arc elastic sheet 7 drives the arc-shaped narrow surface pressing plate 12 to move, the arc-shaped narrow surface pressing plate 12 drives the V-shaped groove adjusting pad 13 to move, and the V-shaped groove adjusting pad 13 is attached to the V-shaped corner position of the inner wall of the test nozzle 22. At the same time, the arc-shaped groove 8 on both sides of the double-arc elastic sheet 7 deforms, so that the double-arc elastic sheet 7 deforms and extrudes the T-shaped block 9, and the T-shaped block 9 extrudes the arc-shaped wide surface pressing plate 10.

[0035] The arc-shaped wide surface pressing plate 10 drives the linkage elastic strip 32 to deform, and the arc-shaped wide surface pressing plate 10 drives the corner elastic sheet 11 to deform and adjust the angle position, so that the arc-shaped wide surface pressing plate 10 drives the wide surface of the V-shaped groove adjusting pad 13 to extrude, and the wide surface of the V-shaped groove adjusting pad 13 realizes adjustable blocking at the position of the inner wall V-shaped wide surface nozzle of the test nozzle 22. At the same time, the corner elastic sheet 11 extrudes the corner position of the V-shaped groove adjusting pad 13, so that the corner position of the V-shaped groove adjusting pad 13 can realize adjustable blocking at the position of the inner wall corner nozzle of the test nozzle 22, the double-arc elastic sheet 7 extrudes the arc-shaped narrow surface pressing plate 12, the arc-shaped narrow surface pressing plate 12 drives the corner elastic sheet 11 to deform, so that the arc-shaped narrow surface pressing plate 12 extrudes the narrow surface of the V-shaped groove adjusting pad 13, and the narrow surface of the V-shaped groove adjusting pad 13 realizes adjustable anti-blocking at the position of the inner wall V-shaped narrow surface nozzle of the test nozzle 22. When the pressure value sensed by the positioning pressure sensor 6 is the same as the pressure value set by the controller 21, the micro extrusion cylinder 5 is closed through the controller 21, so that the arc-shaped wide surface pressing plate 10 and the arc-shaped narrow surface pressing plate 12 can realize specified pressure adjustment according to the adjustable angle.

[0036] Then, when the present application carries out fuel nozzle test, through the liquid inlet valve 31 to the fuel pipeline, the fuel is transported to the fuel storage tank 30 through the liquid inlet valve 31 for storage, after storage, close the liquid inlet valve 31, and the controller 21 starts the booster pump 29, the booster pump 29 pressurizes the fuel and transports it to the booster pipe 28, through the booster pipe 28, the fuel is transported to the concave pipe 27, and then the fuel is filled into the flowmeter 26 through the concave pipe 27, and then the fuel is transported to the test pipe 1 through the flowmeter 26, and the vibration sensor 24 on the test pipe 1 detects the vibration value, when the vibration value is within the set value of the controller 21, the test pressure sensor 25 detects the fuel pressure value in the test pipe 1, and the fuel is transported to the test ring 2 along the test pipe 1, and then the fuel is transported to the test nozzle 22 through the test ring 2, and then the fuel is sprayed through the V-shaped area orifice of the test nozzle 22, the V-shaped groove adjusting pad 13 blocks the orifice at the V-shaped corner position of the inner wall of the test nozzle 22, the V-shaped groove adjusting pad 13 blocks the orifice at the V-shaped wide surface position of the inner wall of the test nozzle 22, and the V-shaped groove adjusting pad 13 can also block the orifice at the V-shaped narrow surface position of the inner wall of the test nozzle 22.

[0037] Finally, when recording the test, check whether the test pressure sensor 25 value after blocking the orifice area of the test nozzle 22 is within the set range of the controller 21, if not, the test is unqualified, when the vibration value sensed by the vibration sensor 24 is not within the set range of the controller 21, it is known that the test nozzle 22 will produce larger vibration after being blocked, which simulates that the test is unqualified, at the same time, check whether the flow value of the flowmeter 26 is within the set range of the controller 21, if not, the flow delivery is unstable, the test nozzle 22 is unqualified, if all the data are within the set range of the controller 21, the test nozzle 22 is qualified, finally, record these test data on the record table.

[0038] The contents not described in detail in the specification all belong to the prior art known to those skilled in the art, and the model parameters of various electrical appliances are not specifically limited, and conventional equipment can be used, in the present technical solution, the electrical appliance control elements not mentioned belong to the prior art, and therefore are not shown in the figure, and will not be described here.

[0039] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fuel nozzle test platform, comprising two test pipes (1) and a controller (21), one end of each of the test pipes (1) is fixedly connected with a test ring (2), one end of the test ring (2) is fixedly connected with a support (3), characterized in that: The upper part of the support (3) is provided with an adjusting test assembly; The adjusting test assembly comprises a sliding frame (4) arranged above the support (3), the upper surface of the sliding frame (4) is fixedly connected with a micro extrusion electric cylinder (5), the output end of the micro extrusion electric cylinder (5) is provided with a positioning pressure sensor (6), the top end of the positioning pressure sensor (6) is fixedly provided with a double-arc spring sheet (7), the two sides of the double-arc spring sheet (7) are provided with arc-shaped grooves (8), the top end of the double-arc spring sheet (7) is fixedly connected with a T-shaped block (9), the top end of the T-shaped block (9) is fixedly provided with an arc-shaped wide-face pressing plate (10), the top end of the arc-shaped wide-face pressing plate (10) is fixedly connected with a corner spring sheet (11), one end of the corner spring sheet (11) is fixedly connected with an arc-shaped narrow-face pressing plate (12), and the outer wall of the arc-shaped wide-face pressing plate (10) is fixedly connected with a V-shaped groove adjusting pad (13).

2. The fuel nozzle test platform of claim 1, wherein: The output end of the micro extrusion electric cylinder (5) is fixedly connected with the sensing end of the positioning pressure sensor (6), and the double-arc spring sheet (7), the arc-shaped wide-face pressing plate (10) and the arc-shaped narrow-face pressing plate (12) are all made of carbon fiber material.

3. The fuel nozzle test platform of claim 1, wherein: The upper surface of the arc-shaped narrow-face pressing plate (12) has a larger cross-sectional area than the bottom end, and the top end of the arc-shaped wide-face pressing plate (10) has a smaller cross-sectional area than the bottom end; The V-shaped groove adjusting pad (13) and the double-arc spring sheet (7) are fixedly connected with the arc-shaped narrow-face pressing plate (12), and the V-shaped groove adjusting pad (13) is made of silica gel pad material; The positioning pressure sensor (6) and the micro extrusion electric cylinder (5) are electrically connected with the controller (21).

4. The fuel nozzle test platform of claim 1, wherein: The arc-shaped wide-face pressing plate (10) and the arc-shaped narrow-face pressing plate (12) are provided with a linkage spring strip (32) between them and close to the corner spring sheet (11) position; The arc-shaped wide-face pressing plate (10) and the arc-shaped narrow-face pressing plate (12) are fixedly connected with the linkage spring strip (32).

5. The fuel nozzle test platform of claim 1, wherein: The bottom end of the micro extrusion electric cylinder (5) is fixedly provided with a sleeved sliding block (14); The sleeved sliding block (14) is slidingly connected with the sliding frame (4), one side of the sleeved sliding block (14) is fixedly provided with an electromagnet (15), the upper surface of the electromagnet (15) is magnetically connected with a magnetic attraction strip (16), the magnetic attraction strip (16) is fixedly connected with the sliding frame (4), the inner wall of the sleeved sliding block (14) is slidingly connected with a guide rod (17), and the guide rod (17) is fixedly connected with the sliding frame (4); The top end of the support (3) is fixedly connected with a micro rotary motor (18), the output end of the micro rotary motor (18) is fixedly connected with a rotating shaft (19), one end of the rotating shaft (19) is provided with a micro adjusting electric cylinder (20), the output end of the micro adjusting electric cylinder (20) is fixedly connected with the sliding frame (4), the electromagnet (15) and the micro adjusting electric cylinder (20) are electrically connected with the controller (21), and the micro rotary motor (18) is electrically connected with the controller (21). The upper side of the V-shaped groove adjusting pad (13) is provided with a test nozzle (22), which is detachably installed between the V-shaped groove adjusting pad (13).

6. The fuel nozzle test platform of claim 5, wherein: The gap is provided between the rotating shaft (19) and the sliding frame (4), and the inner wall of the sliding frame (4) and the outer wall of the sleeved sliding block (14) are smooth surfaces.

7. The fuel nozzle test platform of claim 5, wherein: The output end surface of the micro adjusting electric cylinder (20) is parallel to the lower inclined surface of the sliding frame (4).

8. The fuel nozzle test platform of claim 1, wherein: The lower surface of the test pipe (1) is provided with a table body (23), and the two test pipes (1) are fixedly connected with the table body (23). The controller (21) is fixed on one side of the table body (23), the outer wall of the test pipe (1) is fixedly provided with a vibration sensor (24), one side of the vibration sensor (24) is provided with a test pressure sensor (25), the test pressure sensor (25) is fixedly connected with the test pipe (1), the other end of the test pipe (1) is fixedly communicated with a flow meter (26), one end of the flow meter (26) is threadedly communicated with a concave pipe (27). The outer wall of the concave pipe (27) is fixedly communicated with a booster pipe (28), the bottom end of the booster pipe (28) is provided with a booster pump (29), the input end of the booster pump (29) is fixedly communicated with a fuel storage tank (30).

9. The fuel nozzle test platform of claim 8, wherein: The vibration sensor (24) and the test pressure sensor (25) are electrically connected with the controller (21), and the flow meter (26) is electrically connected with the controller (21). The booster pump (29) and the liquid inlet valve (31) are electrically connected with the controller (21).

10. The fuel nozzle test platform of claim 8, wherein: The bottom end of the fuel storage tank (30) is fixedly communicated with the liquid inlet valve (31), and the inner wall of the fuel storage tank (30) is a smooth surface.

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