Oil nozzle performance testing equipment

Abstract

The invention discloses oil nozzle performance testing equipment, and particularly relates to the technical field of atomization performance testing, the oil nozzle performance testing equipment comprises a supporting frame, a testing assembly is arranged on the supporting frame, the testing assembly comprises an electric sliding rail fixedly arranged on one side of the top of the supporting frame, and one side of the electric sliding rail is slidably connected with a position-adjustable sliding seat through a sliding table. According to the invention, the weight of oil mist deposited on each deposition filter cotton swab is tested through the weighing sensor, and the weight of the oil mist deposited on each deposition filter cotton swab is tested through the weighing sensor because the state of sprayed oil liquid is different from that of burst-out oil liquid, so that the weight of atomized dropping liquid when the oil mist is sprayed out is tested; and whether the oil mist is atomized, sprayed out and deposited on the deposition filter cotton swab or dripped on the deposition filter cotton swab in the form of a water column ejected by the nozzle is detected, so that the nozzle atomization performance test precision and effect are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of atomization performance testing, and more particularly to a fuel injection nozzle performance testing device. Background Art

[0002] Nozzles usually use higher pressure to atomize, producing very fine droplets. Atomizing nozzles can spray liquid into atomized form and evenly suspend it in the air, so the quality of atomizing nozzles directly affects the performance of the nozzle.

[0003] Among them, the patent with announcement number CN206020009U discloses a fuel nozzle atomization detection equipment, including a test bench, on which are provided four stations: an atomization quality observation and spray cone angle shooting station, a fuel nozzle flow test station, a combination nozzle flow test station, and a combination nozzle atomization quality observation station. A precision constant temperature oil tank is provided below the test bench, an engineering computer is provided between the atomization quality observation and spray cone angle shooting station and the fuel nozzle flow test station, and an industrial control computer is provided below the engineering computer. The test bench includes a metal cabinet and connecting pipes for fixing and connecting the four stations, the precision constant temperature oil tank, and the engineering computer.

[0004] When this structure is in use, the oil-gas mixture in the atomization chamber is extracted by the induced effect of compressed air and transmitted to the oil-gas separation device. The oil and gas are separated and combined by the oil-gas separation device, and the gas is discharged and observed through the transparent glass of the atomization chamber. However, the compressed air induced extraction of the oil-gas mixture is unable to actively gather the atomized oil mist, resulting in serious diffusion of the oil mist in the test space. When observing the atomization form through the transparent glass, it is impossible to quantify the deposition state of the oil mist particles and thus it is impossible to accurately distinguish between the two forms of atomized deposition and droplet dripping of the oil mist, resulting in inaccurate testing. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fuel injector performance testing device, which aims to solve the problems raised in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a fuel injector performance testing device comprises a support frame, on which a testing assembly is provided;

[0007] The test assembly includes an electric slide rail fixedly arranged on one side of the top of the support frame, one side of the electric slide rail is slidably connected to a position-adjustable slide seat through a slide table, one side of the slide seat is provided with a clamping device for limiting the position of the nozzle, and the bottom of the slide seat is provided with a pad for lifting the nozzle;

[0008] The bottom of the support frame is equipped with a detection box by bolts, and a test cylinder is embedded in the middle of the detection box, and the middle of the test cylinder is rotatably connected to a sealing vertical cylinder for collecting oil mist, and a gasket is embedded in the middle of the sealing vertical cylinder, and a test plate is clamped in the middle of the gasket, and an electric heater for heating is embedded in the test plate, and a plurality of sedimentation filter cotton rods for capturing oil mist are distributed on the outside of the electric heater, and a weighing sensor embedded in the test plate is provided at the bottom of each sedimentation filter cotton rod. A first limiting opening is formed through the upper surface of the sliding seat, and a second limiting opening is formed through the gasket, and a clamping block is fixedly provided on the outer side of the gasket, and the clamping block extends to one side of the inner wall of the sealing vertical cylinder, and the clamping block is fixedly connected to the sealing vertical cylinder, and a connecting head is fixedly provided on the top of the sealing vertical cylinder, and a sleeve is fixedly provided on the top of the test cylinder, and the sleeve is sleeved on the outside of the connecting head, and the connecting head is rotatably connected to the sleeve.

[0009] It can be seen that in the above technical solution, the nozzle is placed on the pad, and the nozzle is limited by the second limit opening and the first limit opening. At the same time, the pad can be rotated to realize the function of adjusting the position of the second limit opening, and then the nozzle is clamped by prying the clamping device, and the third cylinder drives the rubber rod to displace and contact the nozzle, so as to avoid the nozzle being displaced by force during the spray test, so as to ensure the stability during the spray performance test, and the oil mist can be deposited on the sedimentation filter cotton rod when sprayed, and the weight of the oil mist deposited on each sedimentation filter cotton rod is tested by the weighing sensor, and then the weight of the atomized droplets when the oil mist is sprayed is tested to realize the measurement of whether the oil mist is atomized and deposited on the sedimentation filter cotton rod or ejected from the nozzle in the form of a water column and dripped on the sedimentation filter cotton rod, so as to ensure the accuracy and effect of the nozzle atomization performance test, and when the oil mist is deposited on the sedimentation filter cotton rod, it can also be heated by the electric heater. The heating can increase the temperature of the oil to avoid condensation, facilitate the dripping of the deposited oil mist, and also make it volatilize, so as to avoid oil residue on the sedimentation filter cotton rod;

[0010] Optionally, in a possible embodiment, a supporting transverse cylinder is plugged into the detection box, and a linkage gear rod is slidably connected to the middle part of the supporting transverse cylinder. A staggered opening is provided on one side of the surface of the test cylinder, and the staggered opening is communicated with the supporting transverse cylinder. A gear is installed on the outside of the sealing vertical cylinder through a bolt, and the gear is located in the staggered opening, and the gear is meshed with the linkage gear rod. A first cylinder is provided on one side of the surface of the supporting transverse cylinder, and the first cylinder is installed at the bottom of the support frame through bolts. A long waist hole is provided on the outside of the supporting transverse cylinder, and an extension block is slidably connected in the long waist hole, and the extension block is connected through A bolt is installed at one end of the linkage gear rod, the output end of the first cylinder is installed on the extension block through a bolt, a tripod is installed on the top of the support frame through a bolt, a second cylinder is installed on one end of the tripod through a bolt, a water pump is installed on the output end of the second cylinder through a bolt, a high-pressure oil storage tank is provided on one side of the tripod, the high-pressure oil storage tank is installed on the support frame through a bolt, a conduit for diversion is installed on the high-pressure oil storage tank through a valve, one end of the conduit extends to the water pump, a third cylinder is installed on the side of the tripod through a bolt, and a rubber rod is provided on the output end of the third cylinder;

[0011] It can be seen that in the above technical solution, the oil in the oil storage high-pressure tank is extracted through the conduit by the water pump and injected into the nozzle through the water pump. In order to avoid spilling of the oil during transportation, the water pump is driven downward by the second cylinder so that the output end of the water pump can be connected to the nozzle. The oil is transported to the nozzle and atomized and sprayed through the nozzle and gathered through the connector to avoid diffusion and poor spray performance test. The extension block is driven by the first cylinder to drive the linkage gear rod to move in the supporting horizontal cylinder. When the linkage gear rod moves, it rubs against the gear, and then the gear drives the sealing vertical cylinder and the gasket to rotate, which is easy to deposit. When the filter cotton rod rotates, it takes over the scattered oil mist, thereby realizing the function of actively capturing the oil mist for spray performance test and ensuring the performance test effect.

[0012] Technical effects and advantages of the present invention:

[0013] 1. The present invention uses a water pump to extract the oil from the oil storage high-pressure tank through a conduit and inject it into the nozzle. In order to prevent the oil from spilling during transportation, the water pump is driven downward by a second cylinder so that the output end of the water pump can be connected to the nozzle. The oil is transported to the nozzle and sprayed through the nozzle into atomized form, and then gathered through the connector to avoid diffusion and poor spray performance test.

[0014] 2. The oil mist of the present invention can be deposited on the sedimentation filter cotton stick when sprayed. Since the state of the sprayed oil is different from that of the ejected oil, the weight of the oil mist deposited on each sedimentation filter cotton stick is tested by a weighing sensor, and then the weight of the atomized droplets when the oil mist is sprayed is tested to measure whether the oil mist is atomized and deposited on the sedimentation filter cotton stick or ejected from the nozzle in the form of a water column and dripped on the sedimentation filter cotton stick, so as to ensure the accuracy and effect of the nozzle atomization performance test;

[0015] 3. When the oil mist is deposited on the sedimentation filter cotton stick, the electric heater is used to heat it. The heating can increase the temperature of the oil, avoid condensation, facilitate the dripping of the deposited oil mist, and also volatilize it, so as to avoid the oil residue on the sedimentation filter cotton stick causing inaccurate testing of the subsequent nozzles. The gear drives the sealing vertical cylinder and the gasket to rotate, making it easy for the sedimentation filter cotton stick to receive the scattered oil mist when it rotates, thereby realizing the function of actively capturing the oil mist for spray performance testing and ensuring the performance test effect.

[0016] 4. The present invention limits the nozzle through the second limiting opening and the first limiting opening, and can also rotate the backing plate to adjust the position of the second limiting opening. The nozzle is then clamped by prying the clamping device, and the third cylinder drives the rubber rod to move against the nozzle, preventing the nozzle from being displaced by force during the spray test, thereby ensuring stability during the spray performance test;

[0017] To sum up, through the corresponding coordinated use of various structures, the output end of the water pump can be connected to the nozzle, and the oil is transported to the nozzle and sprayed out through the nozzle in atomization and gathered through the connector to avoid diffusion and poor spray performance test. The weight of the oil mist deposited on each sedimentation filter cotton rod is tested, and then the weight of the atomized droplets when the oil mist is sprayed is tested to measure whether the oil mist is atomized and sprayed and deposited on the sedimentation filter cotton rod or ejected from the nozzle in the form of a water column and dripped on the sedimentation filter cotton rod, so as to ensure the accuracy and effect of the nozzle atomization performance test. The gear drives the sealing vertical cylinder and the gasket to rotate, which makes it easy for the sedimentation filter cotton rod to receive the scattered oil mist when it rotates, and realizes the function of actively capturing the oil mist for spray performance test, thereby ensuring the performance test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. Furthermore, the drawings described below are schematic diagrams and are not intended to limit the actual dimensions of the products, actual processes of the methods, actual timing of signals, and the like involved in the embodiments of the present disclosure.

[0019] Figure 1 It is the main view of the overall structure of the present invention.

[0020] Figure 2 It is a side view of the overall structure of the present invention.

[0021] Figure 3 It is a three-dimensional diagram of the electric slide rail, slide seat, clamping device and backing plate of the present invention.

[0022] Figure 4 It is a three-dimensional diagram of the tripod, the third air cylinder, the rubber rod, the second air cylinder, the water pump and the detection box of the present invention.

[0023] Figure 5 It is a three-dimensional diagram of the detection box, supporting horizontal cylinder, first cylinder and extension block of the present invention.

[0024] Figure 6 For the present invention Figure 6 Exploded diagram.

[0025] Figure 7 This is a three-dimensional diagram of the connector, collar, test tube and gear of the present invention when installed together.

[0026] Figure 8 For the present invention Figure 7 Exploded diagram.

[0027] The accompanying drawings are marked as follows: 1. Support frame; 2. Electric slide rail; 3. Slide seat; 4. Clamping device; 5. First limit opening; 6. Pad; 7. Second limit opening; 8. Detection box; 9. Test cylinder; 10. Sealing vertical cylinder; 11. Gasket; 12. Test plate; 13. Electric heater; 14. Sedimentation filter cotton rod; 15. Block; 16. Connector; 17. Ring; 18. Support cross cylinder; 19. Linkage gear rod; 20. Offset opening; 21. Gear; 22. Long waist hole; 23. Extension block; 24. First cylinder; 25. Tripod; 26. Second cylinder; 27. Water pump; 28. Oil storage high-pressure box; 29. ​​Conduit; 30. Third cylinder; 31. Rubber rod. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0029] As attached Figure 1 - Figure 8The fuel injector performance test equipment shown in the figure has a test component provided on the support frame 1, and the output end of the water pump 27 can be docked on the nozzle. The oil is transported to the nozzle and sprayed through the nozzle into atomization and gathered through the connector 16 to avoid diffusion and poor spray performance test. The weight of the oil mist deposited on each sedimentation filter cotton rod 14 is tested, and then the weight of the atomized droplets when the oil mist is sprayed is tested to measure whether the oil mist is atomized and sprayed and deposited on the sedimentation filter cotton rod 14 or ejected from the nozzle in the form of a water column and dripped on the sedimentation filter cotton rod 14, so as to ensure the accuracy and effect of the nozzle atomization performance test. The gear 21 drives the sealing vertical cylinder 10 and the gasket 11 to rotate, which makes it easy for the sedimentation filter cotton rod 14 to receive the scattered oil mist when it rotates, so as to realize the function of actively capturing the oil mist for spray performance test and ensure the performance test effect. The specific structure of the component is set as follows;

[0030] The test assembly includes an electric slide rail 2 fixedly mounted on one side of the top of the support frame 1. One side of the electric slide rail 2 is slidably connected to a position-adjustable slide seat 3 through a slide table. One side of the slide seat 3 is provided with a clamping device 4 for limiting the position of the nozzle. The bottom of the slide seat 3 is provided with a pad 6 for supporting the nozzle.

[0031] The bottom of the support frame 1 is fixed with a detection box 8 by bolts, and a test cylinder 9 is embedded in the middle of the detection box 8. The middle of the test cylinder 9 is rotatably connected with a sealing vertical cylinder 10 for gathering oil mist. A gasket 11 is embedded in the middle of the sealing vertical cylinder 10. A test plate 12 is clamped in the middle of the gasket 11. An electric heater 13 for heating is embedded on the test plate 12. Several sedimentation filter cotton rods 14 for capturing oil mist are distributed on the outside of the electric heater 13, and the bottom of each sedimentation filter cotton rod 14 is provided with a filter embedded in the bottom. The weighing sensor in the test plate 12 has a first limit opening 5 formed on the upper surface of the slide 3, and a second limit opening 7 formed on the backing plate 6. A clamping block 15 is fixedly provided on the outer side of the gasket 11, and the clamping block 15 extends to one side of the inner wall of the sealing vertical cylinder 10. The clamping block 15 is fixedly connected to the sealing vertical cylinder 10. A connector 16 is fixedly provided on the top of the sealing vertical cylinder 10. A collar 17 is fixedly provided on the top of the test cylinder 9. The collar 17 is sleeved on the outer side of the connector 16, and the connector 16 and the collar 17 are rotatably connected.

[0032] A supporting transverse cylinder 18 is plugged into the detection box 8, and a linkage gear rod 19 is slidably connected to the middle part of the supporting transverse cylinder 18. A dislocation opening 20 is provided on one side of the surface of the test cylinder 9, and the dislocation opening 20 is communicated with the supporting transverse cylinder 18. A gear 21 is installed on the outside of the sealing vertical cylinder 10 by bolts. The gear 21 is located in the dislocation opening 20, and the gear 21 is meshed with the linkage gear rod 19. A first cylinder 24 is provided on one side of the surface of the supporting transverse cylinder 18, and the first cylinder 24 is installed at the bottom of the support frame 1 by bolts. A long waist hole 22 is provided on the outside of the supporting transverse cylinder 18, and an extension block 23 is slidably connected in the long waist hole 22. The extension block 23 is installed on the linkage At one end of the movable gear rod 19, the output end of the first cylinder 24 is mounted on the extension block 23 by bolts, and a tripod 25 is mounted on the top of the support frame 1 by bolts, and a second cylinder 26 is mounted on one end of the tripod 25 by bolts, and a water pump 27 is mounted on the output end of the second cylinder 26 by bolts. A high-pressure oil storage tank 28 is provided on one side of the tripod 25, and the high-pressure oil storage tank 28 is mounted on the support frame 1 by bolts. A conduit 29 for diversion is installed on the oil high-pressure storage tank 28 through a valve, and one end of the conduit 29 extends to the water pump 27. A third cylinder 30 is mounted on the side of the tripod 25 by bolts, and a rubber rod 31 is provided at the output end of the third cylinder 30.

[0033] When using the above structure, the staff will install the device at the designated location and test the atomization performance of the nozzle. Figure 1 、 2 As shown in Figures 3 and 4, the nozzle is placed on the backing plate 6 and the second limiting opening 7 and the first limiting opening 5 are used to limit the nozzle position. The backing plate 6 can also be rotated to adjust the position of the second limiting opening 7. The nozzle is then clamped by prying the clamping device 4, and the third cylinder 30 drives the rubber rod 31 to move against the nozzle, preventing the nozzle from being displaced by force during the spray test, thereby ensuring stability during the spray performance test.

[0034] As attached Figure 1 、 2 As shown in Figure 4, the oil in the oil storage high-pressure tank 28 is pumped out by the water pump 27 through the conduit 29 and injected into the nozzle through the conduit. In order to avoid spilling of the oil during transportation, the water pump 27 is driven downward by the second cylinder 26, and the oil is transported to the nozzle and sprayed out through the nozzle into atomization and gathered through the connector 16 to avoid diffusion and poor spray performance test.

[0035] As attached Figure 8As shown, when the oil mist is sprayed, it can be deposited on the deposition filter cotton stick 14. The weight of the oil mist deposited on each deposition filter cotton stick 14 is tested by a weighing sensor, and then the weight of the atomized droplets when the oil mist is sprayed is tested, so as to measure whether the oil mist is atomized and sprayed and deposited on the deposition filter cotton stick 14 or ejected from the nozzle in the form of a water column and dripped on the deposition filter cotton stick 14, so as to ensure the accuracy and effect of the nozzle atomization performance test;

[0036] When the oil mist is deposited on the sediment filter cotton stick 14, it can be heated by the electric heater 13. The heating can increase the temperature of the oil to avoid condensation, facilitate the dripping of the deposited oil mist, and also volatilize it to avoid oil residue on the sediment filter cotton stick 14.

[0037] At the same time, when testing, as shown in the attached Figure 5 、 6 , 7 and 8 can also drive the extension block 23 through the first cylinder 24 to drive the linkage gear rod 19 to move in the supporting horizontal cylinder 18. When the linkage gear rod 19 moves, it rubs against the gear 21, and then the gear 21 drives the sealing vertical cylinder 10 and the gasket 11 to rotate, which is easy to deposit. When the filter cotton rod 14 rotates, it takes over the scattered oil mist, realizes the function of actively capturing the oil mist for spray performance testing, and ensures the performance test effect.

[0038] At the same time, when the device is in use, a slide 3, a clamping device 4 and a pad 6 can be added to the electric slide rail 2 as needed, so that when the electric slide rail 2 drives the slide 3, the clamping device 4 and the pad 6 to transfer the nozzle to between the connector 16 and the water pump 27, the nozzle on the other set of slides 3, clamping devices 4 and pads 6 can be removed to facilitate continuous operation of the device.

[0039] Different from the prior art, the present application discloses an injector performance test device, which can be connected to the nozzle through the output end of the water pump 27. The oil is transported to the nozzle and sprayed out through the nozzle in atomization and gathered through the connector 16 to avoid diffusion and poor spray performance test. The weight of the oil mist deposited on each sedimentation filter cotton rod 14 is tested, and then the weight of the atomized droplets when the oil mist is sprayed is tested to measure whether the oil mist is atomized and sprayed and deposited on the sedimentation filter cotton rod 14 or ejected from the nozzle in the form of a water column and dripped on the sedimentation filter cotton rod 14, so as to ensure the accuracy and effect of the nozzle atomization performance test. The gear 21 drives the sealing vertical cylinder 10 and the gasket 11 to rotate, which makes it easy for the sedimentation filter cotton rod 14 to receive the scattered oil mist when it rotates, thereby realizing the function of actively capturing the oil mist for spray performance test and ensuring the performance test effect.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fuel injection nozzle performance testing device, comprising a support frame (1), characterized in that: A test assembly is provided on the support frame (1); The test assembly comprises an electric slide rail (2) fixedly arranged on one side of the top of the support frame (1), a slide seat (3) is arranged on one side of the electric slide rail (2), a clamping device (4) is arranged on one side of the slide seat (3), and a pad (6) is arranged on the bottom of the slide seat (3); A detection box (8) is provided at the bottom of the support frame (1), a test cylinder (9) is embedded in the middle of the detection box (8), a sealing vertical cylinder (10) is rotatably connected to the middle of the test cylinder (9), a gasket (11) is embedded in the middle of the sealing vertical cylinder (10), a test plate (12) is clamped in the middle of the gasket (11), an electric heater (13) is embedded in the test plate (12), a plurality of sedimentation filter sticks (14) are distributed on the outside of the electric heater (13), and a weighing sensor embedded in the test plate (12) is provided at the bottom of each sedimentation filter stick (14).

2. The fuel injector performance testing device according to claim 1, characterized in that: A first limiting opening (5) is provided through the upper surface of the slide seat (3), and a second limiting opening (7) is provided through the pad (6).

3. The fuel injector performance testing device according to claim 1, characterized in that: A clamping block (15) is fixedly provided on the outer side of the gasket (11), and the clamping block (15) extends to one side of the inner wall of the sealing vertical cylinder (10). The clamping block (15) is fixedly connected to the sealing vertical cylinder (10).

4. The fuel injector performance testing device according to claim 1, characterized in that: A connector (16) is fixedly provided at the top of the sealing vertical cylinder (10), and a collar (17) is fixedly provided at the top of the testing cylinder (9). The collar (17) is sleeved on the outside of the connector (16), and the connector (16) and the collar (17) are rotatably connected.

5. The fuel injector performance testing device according to claim 1, characterized in that: A supporting transverse cylinder (18) is inserted into the detection box (8), and a linkage gear rod (19) is slidably connected to the middle of the supporting transverse cylinder (18). A dislocation opening (20) is opened through one side of the surface of the test cylinder (9), and the dislocation opening (20) is communicated with the supporting transverse cylinder (18).

6. The fuel injector performance testing device according to claim 5, characterized in that: A gear (21) is installed on the outer side of the sealing vertical cylinder (10) through bolts. The gear (21) is located in the offset opening (20), and the gear (21) is meshed with the linkage gear rod (19).

7. The fuel injector performance testing device according to claim 5, characterized in that: A first cylinder (24) is provided on one side of the surface of the supporting transverse cylinder (18), and the first cylinder (24) is mounted on the bottom of the supporting frame (1) by means of bolts. A long waist hole (22) is provided on the outer side of the supporting transverse cylinder (18).

8. The fuel injector performance testing device according to claim 7, characterized in that: An extension block (23) is slidably connected in the long waist hole (22), and the extension block (23) is mounted on one end of the linkage gear rod (19) through a bolt, and the output end of the first cylinder (24) is mounted on the extension block (23) through a bolt.

9. The fuel injector performance testing device according to claim 1, characterized in that: A tripod (25) is mounted on the top of the support frame (1) via bolts, a second cylinder (26) is mounted on one end of the tripod (25) via bolts, and a water pump (27) is mounted on the output end of the second cylinder (26) via bolts.

10. The fuel injector performance testing device according to claim 9, characterized in that: An oil storage high-pressure box (28) is provided on one side of the tripod (25), and the oil storage high-pressure box (28) is mounted on the support frame (1) by means of bolts. A conduit (29) for diverting flow is mounted on the oil storage high-pressure box (28) via a valve, and one end of the conduit (29) extends to the water pump (27). A third cylinder (30) is mounted on the side of the tripod (25) by means of bolts, and a rubber rod (31) is provided at the output end of the third cylinder (30).

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