A fuel nozzle sealing batch detection device

Abstract

The present invention discloses a batch detection device for the sealing performance of fuel nozzles, comprising a base, a driving mechanism for providing driving force is fixedly connected to the top of the base, a working condition simulation mechanism is arranged on the driving mechanism, a detection mechanism is arranged on the top of the working condition simulation mechanism, a fixing plate is fixedly installed on the outer side of the conveying mechanism, a detection switching mechanism is fixedly installed on the top of the fixing plate, and a clamping mechanism for clamping and rejecting the fuel nozzle body is arranged on the outside of the detection mechanism; a plurality of pump bodies are arranged and matched with the feeding frames in sequence, and according to the detection process, the pump body extracts the medium from the corresponding feeding frame, injects the medium into the nozzle through the conduit and the channel of the clamping mechanism, firstly measures the air tightness with gas, and then measures the injection amount with oil, and judges whether it is qualified according to the preset value range, so as to prevent the phenomenon that the sealing performance of the fuel nozzle is too good and the injection amount of the fuel nozzle does not meet the expectation.

Description

Technical Field

[0001] The invention relates to the technical field of fuel nozzle detection, in particular to a fuel nozzle sealing batch detection device. Background Art

[0002] As the core component of the fuel injection system, the fuel nozzle is responsible for accurately atomizing the fuel and spraying it into a specific area. In various types of engines, whether they are aircraft engines, automobile engines or industrial engines, their working performance is closely related to the operating status of the fuel nozzle. The main task of the fuel nozzle is to convert liquid fuel into fine mist particles and spray them into the combustion chamber at precise pressure, flow and injection angle. This process requires extremely high precision, because the atomization effect directly affects the mixing ratio and uniformity of fuel and air, which in turn determines the combustion efficiency, power output and pollutant emission levels. For example, in aircraft engines, efficient fuel nozzles can ensure stable operation and fuel saving when the aircraft is flying at high altitude and high speed; the fuel nozzles in automobile engines play a key role in improving the power and economy of the entire vehicle, and the fuel nozzle sealing detection is a key link to ensure its performance.

[0003] During actual engine operation, the fuel nozzle will be affected by a variety of complex working conditions, among which vibration is extremely common. However, existing sealing tests often do not take vibration conditions into consideration and are only conducted under static conditions, which cannot simulate the actual working environment. As a result, some tiny sealing gaps that are only exposed under vibration conditions are difficult to detect, resulting in inaccurate test results. Nozzles with potential sealing problems may be misjudged as qualified. Secondly, the sealing performance and fuel injection volume of the fuel nozzle are not only interrelated (for example, excessively good sealing performance of the fuel nozzle may result in a small fuel injection volume of the fuel nozzle), but are also important indicators for measuring the performance of the fuel nozzle. However, most existing tests focus on sealing performance and do not include the test of fuel injection volume, making it difficult to fully evaluate the sealing performance of the nozzle.

[0004] To this end, a fuel nozzle sealing batch detection device is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a fuel nozzle sealing batch detection device to solve the problems mentioned in the above background technology that the real working environment cannot be simulated and the sealing performance and the injection amount cannot be detected in combination.

[0006] To achieve the above object, the present invention provides the following technical solution: a fuel nozzle sealing batch detection device, comprising a base, a driving mechanism for providing driving force is fixedly connected to the top of the base, a working condition simulation mechanism for simulating actual working conditions is arranged on the driving mechanism, and a conveying mechanism for inputting and outputting a fuel nozzle body is arranged on the outer side of the working condition simulation mechanism;

[0007] The working condition simulation mechanism comprises a support column fixedly connected to the top of the base, a fixing ring is fixedly installed on the top of the support column, a mounting hole is provided inside the fixing ring, a spring is fixedly installed inside the mounting hole, a vibration ball is fixedly connected to the top of the spring, a placement table is rotatably connected to the top of the fixing ring, a vibration groove for cooperating with the vibration ball is provided at the bottom of the placement table, and at least eight groups of placement grooves are provided on the top of the placement table;

[0008] A detection mechanism for providing a detection environment is arranged on the top of the working condition simulation mechanism, the detection mechanism comprises a detection cylinder placed inside the placement groove, a sealing groove is opened on the top of the detection cylinder, a driving column is fixedly connected to the top of the placement table, a synchronous plate is fixedly connected to the top of the driving column, and a guide tube is fixedly connected to the outer side of the synchronous plate;

[0009] A fixing plate is fixedly installed on the top of the outer side of the conveying mechanism, and a detection switching mechanism for switching the detection mode is fixedly installed on the top of the fixing plate, the detection switching mechanism includes a protective shell fixedly connected to the top of the fixing plate, at least four pump bodies are arranged inside the protective shell, the feed port of the pump body is fixedly connected to a feed pipe, the discharge port of the pump body is fixedly connected to a discharge pipe, at least four groups of feed frames are fixedly installed on the top of the fixing plate, the discharge pipe is connected to the feed frame, the bottom of the fixing plate is fixedly connected to a transition plate, the inner side of the transition plate is provided with a connecting groove, the inner side of the fixing plate is provided with an alignment groove matched with the feed frame, and the connecting groove matches the alignment groove, the synchronous plate is rotatably connected to the transition plate and is sealed and fitted, the feed frame is connected to the connecting groove, and the conduit is connected to the connecting groove after passing through the synchronous plate;

[0010] A clamping mechanism for clamping and removing the fuel nozzle body is arranged outside the detection mechanism.

[0011] Preferably, the number of the pump bodies and the feed frames inside the protective shell is the same.

[0012] Preferably: the clamping mechanism includes a driving frame fixedly connected to the bottom of the synchronization plate, a driving groove is provided inside the driving frame, a driver is slidably arranged inside the driving groove, an electric push rod is fixedly connected to the bottom of the driver, a sealing block for matching the sealing groove is fixedly connected to the output shaft of the electric push rod, through holes are provided on the sealing block and the output shaft of the electric push rod, the conduit is connected to the through hole provided on the output shaft of the electric push rod, an electric clamping head is fixedly connected to the bottom of the sealing block, the fuel nozzle body is clamped inside the electric clamping head, a through hole is provided on the top of the electric clamping head, and the through hole provided on the top of the electric clamping head is connected to the through hole on the sealing block.

[0013] Preferably: a detection module is arranged below the sealing block, the detection module includes but is not limited to an air pressure sensor, a liquid level sensor and a signal transmission module, a control module and a driving module are arranged inside the driver, the detection module is signal-connected to the control module, and the control module is signal-connected to the driving module.

[0014] Preferably, at least four groups of the conveying mechanisms are provided, and pillars for providing support force for the conveying mechanisms are provided at the bottom of the conveying mechanisms.

[0015] Preferably: a connecting hole is provided inside the placement table, a through hole connected to the connecting hole is provided at the bottom of the detection cylinder, an annular frame is fixedly connected to the inner side of the fixing ring, at least two connecting holes are provided on the inner side of the annular frame, the annular frame and the placement table are rotatably connected and sealed, and the annular frame is connected to an external oil storage tank through an oil outlet pipe.

[0016] Preferably, the detection tube is made of a transparent material and is provided with a scale mark.

[0017] Preferably, the driving mechanism comprises a motor bracket fixedly connected to the top of the base, a driving motor is fixedly connected to the top of the motor bracket, and an output end of the driving motor is fixedly connected to the placement table.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, the actual working condition of the fuel nozzle is accurately simulated through the working condition simulation mechanism. A spring and a vibration ball are arranged in the fixed ring supported by the support column, and the top thereof is rotatably connected to a placement table with a vibration groove. When the driving motor drives the placement table to rotate, the vibration ball jumps under the cooperation of the spring support and the vibration groove, simulating the engine vibration environment, so that the fuel nozzle detection is freed from the static limitation, avoids static detection misjudgment, and improves the overall detection accuracy.

[0020] 2. In the present invention, multiple pump bodies and feed frames are arranged in sequence and accurately connected, and the synchronization plate and the transition plate are sealed and rotated together. According to the detection process, the medium inside the feed frame is injected into the nozzle through the conduit and the clamping mechanism channel. The air tightness is first measured by gas, and the air pressure sensor determines whether it is qualified according to the change of air pressure. Then the fuel injection amount is measured by fuel injection, and whether it is qualified is determined according to the preset value range. The orderly switching detection from air tightness to fuel injection amount can prevent the phenomenon that the fuel nozzle's sealing performance is too good, resulting in the fuel injection amount of the fuel nozzle not meeting expectations.

[0021] 3. In the present invention, a driving frame, a driver, an electric push rod, a sealing block and an electric clamping head are provided. The driver moves the electric push rod and the clamping head to clamp the nozzle into the detection tube. The detection module collects data and transmits it to the control module for analysis. According to the detection results, the control module drives the clamping mechanism for precise sorting. The qualified ones are sent to the qualified area, and the unqualified ones are transferred according to the defect classification, thereby realizing batch detection of the injectors and improving the production efficiency and quality control level. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the overall structural view of the present invention;

[0023] Figure 2 It is a schematic diagram of another viewing angle of the overall structure of the present invention;

[0024] Figure 3 It is an exploded schematic diagram of the working condition simulation mechanism and the detection mechanism of the present invention;

[0025] Figure 4 It is an exploded schematic diagram of the working condition simulation mechanism and the detection mechanism of the present invention from another perspective;

[0026] Figure 5 It is an exploded schematic diagram of the working condition simulation mechanism, the detection mechanism and the detection switching mechanism of the present invention;

[0027] Figure 6 It is an exploded schematic diagram from another perspective of the working condition simulation mechanism, the detection mechanism and the detection switching mechanism of the present invention;

[0028] Figure 7 It is an exploded schematic diagram of the internal parts of the clamping mechanism of the present invention;

[0029] Figure 8 It is an exploded schematic diagram of the internal parts of the clamping mechanism of the present invention from another perspective;

[0030] Fig. 9 For the present invention Figure 3 Enlarged view of point A in the middle.

[0031] In the figure:

[0032] 1. Base; 2. Support;

[0033] 3. Driving mechanism; 31. Motor bracket; 32. Driving motor;

[0034] 4. Conveying mechanism; 5. Fuel nozzle body;

[0035] 6. Working condition simulation mechanism; 61. Support column; 62. Fixing ring; 63. Mounting hole; 64. Spring; 65. Vibration ball; 66. Placement table; 67. Vibration slot; 68. Placement slot; 69. Connection hole;

[0036] 7. Detection mechanism; 71. Detection cylinder; 72. Sealing groove; 73. Ring frame; 74. Communication hole; 75. Driving column; 76. Synchronous plate; 77. Conduit; 78. Sealing block;

[0037] 8. Detection switching mechanism; 81. Protective shell; 82. Discharge pipe; 83. Feeding frame; 84. Transition plate; 85. Connecting groove; 86. Feeding pipe;

[0038] 9. Clamping mechanism; 91. Driving frame; 92. Driving slot; 93. Driver; 94. Electric push rod; 95. Electric clamping head;

[0039] 10. Fixed plate; 11. Alignment groove. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the 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 creative work are within the scope of protection of the present invention.

[0041] As an embodiment of the present invention, Figure 1 , Figure 3 , Figure 4 and Fig. 9 As shown, a fuel nozzle sealing batch detection device comprises a base 1, a driving mechanism 3 for providing driving force is fixedly connected to the top of the base 1, the driving mechanism 3 comprises a motor bracket 31 fixedly connected to the top of the base 1, a driving motor 32 is fixedly connected to the top of the motor bracket 31, an output end of the driving motor 32 is fixedly connected to a placement table 66, a working condition simulation mechanism 6 for simulating actual working conditions is arranged on the driving mechanism 3, the working condition simulation mechanism 6 comprises a supporting column 61 fixedly connected to the top of the base 1, a fixing ring 62 is fixedly installed on the top of the supporting column 61, a mounting hole 63 is provided inside the fixing ring 62, a spring 64 is fixedly installed inside the mounting hole 63, a vibration ball 65 is fixedly connected to the top of the spring 64, a placement table 66 is rotatably connected to the top of the fixing ring 62, a vibration groove 67 for cooperating with the vibration ball 65 is provided at the bottom of the placement table 66, and at least eight groups of placement grooves 68 are provided on the top of the placement table 66;

[0042] During operation, the drive motor 32 is started, and the drive motor 32 drives the placement table 66 to rotate. During the rotation of the placement table 66, the vibration groove 67 at the bottom interacts with the vibration ball 65. Due to the elastic support of the spring 64, the vibration ball 65 keeps jumping in the vibration groove 67 to produce a vibration effect, thereby simulating the vibration condition that the fuel nozzle is subjected to when the engine is running, so that the fuel nozzle is in a complex environment similar to the real one during detection, thereby improving the detection accuracy and avoiding the risk of misjudgment due to static detection.

[0043] As an embodiment of the present invention, Figure 5 , Figure 7 and Figure 8 As shown, a conveying mechanism 4 for inputting and outputting a fuel nozzle body 5 is arranged on the outside of the working condition simulation mechanism 6, and at least four groups of conveying mechanisms 4 are arranged. A support 2 for providing a supporting force for the conveying mechanism 4 is arranged at the bottom of the conveying mechanism 4. A clamping mechanism 9 for clamping and rejecting the fuel nozzle body 5 is arranged on the outside of the detection mechanism 7. The clamping mechanism 9 includes a driving frame 91 fixedly connected to the bottom of the synchronization plate 76, and a driving groove 92 is opened inside the driving frame 91. A driver 93 is slidingly arranged inside the driving groove 92, wherein the length of the driving frame 91 and the driving groove 92 is greater than the fixed plate 10, so as to ensure that when the driver 93 slides inside the driving groove 92, the fuel nozzle body 5 correspondingly arranged below the driver 93 can be moved and placed on the corresponding conveying mechanism 4, and the bottom of the driver 93 is fixedly connected There is an electric push rod 94, and a sealing block 78 for matching the sealing groove 72 is fixedly connected to the output shaft of the electric push rod 94. Through holes are provided on the sealing block 78 and the output shaft of the electric push rod 94. The conduit 77 is connected to the through hole provided on the output shaft of the electric push rod 94. An electric clamping head 95 is fixedly connected to the bottom of the sealing block 78. A through hole is provided on the top of the electric clamping head 95. The through hole provided on the top of the electric clamping head 95 is connected to the through hole on the sealing block 78. The fuel nozzle body 5 is clamped inside the electric clamping head 95. A detection module is arranged below the sealing block 78. The detection module includes but is not limited to an air pressure sensor, a liquid level sensor and a signal transmission module. A control module and a drive module are arranged inside the driver 93. The detection module is connected to the control module by signal, and the control module is connected to the drive module by signal.

[0044] During operation, the conveying mechanism 4 conveys the fuel nozzle body 5 to be inspected to a designated position above the placement table 66. The driving module in the driver 93 drives the driver 93 to slide in the driving groove 92, driving the electric push rod 94, the sealing block 78 and the electric clamping head 95 to move above the fuel nozzle body 5. The electric push rod 94 extends and the electric clamping head 95 clamps the fuel nozzle body 5 and then moves to the detection tube 71. At this time, the sealing block 78 is sealed and fits with the sealing groove 72. During detection, the air pressure sensor and the liquid level sensor transmit the collected data to the control module through the signal transmission module. The control module analyzes the data and places the qualified and unqualified fuel nozzle bodies 5 on the corresponding conveying mechanism 4 in turn for transportation. The pump body model inside the protective shell 81, the control program in the control module, the threshold value of the air pressure change and the liquid level range value are all conventional settings for technicians in this field.

[0045] As an embodiment of the present invention, Figures 1 to 9 As shown, a detection mechanism 7 for providing a detection environment is disposed on the top of the working condition simulation mechanism 6. The detection mechanism 7 includes a detection cylinder 71 placed inside the placement groove 68. A sealing groove 72 is provided on the top of the detection cylinder 71. A driving column 75 is fixedly connected to the top of the placement platform 66. A synchronous plate 76 is fixedly connected to the top of the driving column 75. A guide tube 77 is fixedly connected to the outer side of the synchronous plate 76. The detection cylinder 71 is made of a transparent material and is provided with a scale mark.

[0046] A fixed plate 10 is fixedly installed on the top of the outer side of the conveying mechanism 4, and a detection switching mechanism 8 for switching the detection mode is fixedly installed on the top of the fixed plate 10. The detection switching mechanism 8 includes a protective shell 81 fixedly connected to the top of the fixed plate 10, and at least four pump bodies are arranged inside the protective shell 81. The feed port of the pump body is fixedly connected to a feed pipe 86, and the discharge port of the pump body is fixedly connected to a discharge pipe 82. At least four groups of feed frames 83 are fixedly installed on the top of the fixed plate 10, and the discharge pipe 82 is connected to the feed frame 83. A transition plate 84 is fixedly connected to the bottom of the fixed plate 10, and a connecting groove 85 is provided on the inner side of the transition plate 84. A positioning groove 85 cooperating with the feed frame 83 is provided on the inner side of the fixed plate 10. Groove 11, and the connecting groove 85 matches the alignment groove 11, wherein the feed frame 83 is connected with the connecting groove 85, and the conduit 77 is connected with the connecting groove 85 after passing through the synchronous plate 76, the synchronous plate 76 is rotatably connected with the transition plate 84 and is sealed and fitted, the number of the pump body and the feed frame 83 inside the protective shell 81 is the same, the interior of the placement table 66 is provided with a connecting hole 69, the bottom of the detection cylinder 71 is provided with a through hole connected with the connecting hole 69, the inner side of the fixing ring 62 is fixedly connected with an annular frame 73, the inner side of the annular frame 73 is provided with at least two connecting holes 74, the annular frame 73 and the placement table 66 are rotatably connected and sealed and fitted, and the annular frame 73 is connected to the external oil storage tank through an oil outlet pipe.

[0047] When working, Figure 1 For example, Figure 1Starting from the conveying mechanism 4 at the top of the pillar 2 marked with a number and starting from the counterclockwise direction, the first conveying mechanism 4 is used to input the fuel nozzle body 5 to be tested, the second conveying mechanism 4 is used to output the fuel nozzle body 5 that fails the air tightness test, the third conveying mechanism 4 is used to output the fuel nozzle body 5 that fails the fuel injection amount test, and the fourth conveying mechanism 4 is used to output the fuel nozzle body 5 that passes the test; at the same time, starting from the marked detection switching mechanism 8, starting from the counterclockwise direction, the first feed frame 83 is used to store oil and its corresponding pump body is a fuel injection pump, the second feed frame 83 is used to store gas and its corresponding pump body is an air pump, the third feed frame 83 is used to store oil and its corresponding pump body is an oil pump, and the fourth feed frame 83 is used to store gas and its corresponding pump body is an air pump;At the same time, one connecting hole 74 on the annular frame 73 is on the same axis as the second conveying mechanism 4, and the other connecting hole 74 is on the same axis as the third conveying mechanism 4. The driving motor 32 drives the placing table 66 to rotate counterclockwise. The description is based on the above conditions (it should be noted that in the actual operation process, the staff can adjust according to actual needs). A certain amount of oil is injected into the detection cylinder 71 located at the first conveying mechanism 4 (to ensure that the fuel nozzle body 5 can be immersed in the oil and will not overflow from the detection cylinder 71). The first conveying mechanism 4 sprays the fuel. After the nozzle body 5 is input to the designated position, the driver 93 and the electric push rod 94 move to the designated position according to the command, and the electric clamping head 95 seals and clamps the fuel nozzle body 5 to be tested and moves it to the inside of the detection cylinder 71, and the fuel nozzle body 5 is immersed in the oil inside the detection cylinder 71. At this time, the sealing block 78 is sealed and fitted with the sealing groove 72. Then, the driving motor 32 rotates to synchronously drive the detection cylinder 71 and the clamping mechanism 9 to rotate through the placement table 66, the driving column 75 and the synchronous plate 76. The conduit 77 corresponding to the detection cylinder 71 is gradually aligned with the fourth through the alignment groove 11 and the connecting groove 85. The gas in the fourth feeding frame 83 will enter the fuel nozzle body 5 through the conduit 77, the through hole on the output shaft of the electric push rod 94 and the electric clamping head 95, so as to perform an air tightness test on the fuel nozzle body 5. The air pressure sensor will detect the change of the air pressure inside the detection cylinder 71, and then judge whether the fuel nozzle body 5 is qualified (the air pressure change value is greater than the set threshold value, that is, unqualified, and the threshold value is common knowledge of those skilled in the art). If unqualified, when it reaches the position of the second conveying mechanism 4, it will be removed to the second conveying mechanism by the clamping mechanism 9. 4, if qualified, proceed to the next step of testing, at this time, the conduit 77 will no longer be connected to the fourth feeding frame 83, the through hole at the bottom of the detection cylinder 71 will be connected to the connecting hole 74 through the connecting hole 69, and the electric push rod 94 will be controlled to move up a distance, so that the sealing block 78 is no longer sealed with the sealing groove 72, so that the oil inside the detection cylinder 71 is discharged into the annular frame 73, and the fuel nozzle body 5 after oil immersion also provides the effect of pre-lubrication and pre-simulation of the working condition in the oil for the subsequent detection of the injection amount. At the same time, the staff can judge whether the air pressure sensor needs to be calibrated by observing whether there are bubbles inside the detection cylinder 71;

[0048] After the detection cylinder 71 passes over the second conveying mechanism 4, the through hole at the bottom of the detection cylinder 71 will no longer be connected to the connecting hole 74. At this time, the conduit 77 is connected to the first feed frame 83. The first feed frame 83 will spray oil through the oil pump. The oil inside the first feed frame 83 will enter the interior of the fuel nozzle body 5 through the conduit 77, the through hole on the output shaft of the electric push rod 94 and the electric clamping head 95, so as to detect whether the injection amount of the fuel nozzle body 5 is qualified (whether it is within the preset value range under a specific injection pressure and within a certain period of time, and the preset value is common knowledge of those skilled in the art). If it is unqualified, when it reaches the position of the third conveying mechanism 4, it will be removed to the third conveying mechanism 4 through the clamping mechanism 9. If it is qualified, continue to the next step. At this time, the conduit 77 will no longer be connected to the first feed frame 83, and the through hole at the bottom of the detection cylinder 71 will be connected to the connecting hole 74 through the connecting hole 69, so that the oil inside the detection cylinder 71 is discharged into the annular frame 73;

[0049] When the detection cylinder 71 passes over the third conveying mechanism 4, the through hole at the bottom of the detection cylinder 71 will no longer be connected to the connecting hole 74. At this time, the conduit 77 is connected to the second feeding frame 83. The gas inside the second feeding frame 83 will enter the interior of the fuel nozzle body 5 through the conduit 77, the through hole on the output shaft of the electric push rod 94 and the electric clamping head 95, thereby blowing off the residual oil inside the fuel nozzle body 5. When it reaches the position of the fourth conveying mechanism 4, it is placed on the fourth conveying mechanism 4 through the clamping mechanism 9.

[0050] When the detection cylinder 71 passes over the fourth conveying mechanism 4, the through hole at the bottom of the detection cylinder 71 will no longer be connected to the connecting hole 74. At this time, the conduit 77 is connected to the third feed frame 83. The oil inside the third feed frame 83 will enter the interior of the detection cylinder 71 through the conduit 77, the through hole on the output shaft of the electric push rod 94 and the electric clamping head 95, thereby replenishing a certain amount of oil inside the detection cylinder 71.

[0051] Working principle: When working, the driving motor 32 is started, and the driving motor 32 drives the placement table 66 to rotate. During the rotation of the placement table 66, the vibration groove 67 at the bottom interacts with the vibration ball 65. Due to the elastic support of the spring 64, the vibration ball 65 continuously jumps in the vibration groove 67 to produce a vibration effect, thereby simulating the vibration condition suffered by the fuel nozzle when the engine is running, so that the fuel nozzle is in a complex environment similar to the real one during the detection, so that potential sealing problems are fully exposed, the detection accuracy is improved, and misjudgment caused by static detection is avoided.

[0052] according to Figure 1, the support 2 pushes the conveying mechanism 4 counterclockwise, the first conveying mechanism 4 conveys the fuel nozzle body 5 to be inspected, the second conveying mechanism 4 receives the ones that do not meet the air tightness standard, the third conveying mechanism 4 receives the unqualified products, and the fourth conveying mechanism 4 outputs the qualified products. The detection switching mechanism 8 counterclockwise first feed frame 83 oil storage and fuel injection pump, the second feed frame 83 gas storage and gas pump, the third feed frame 83 oil storage and fuel pump, the final feed frame 83 gas storage and gas pump, the two connecting holes 74 on the annular frame 73 are coaxial with the second conveying mechanism 4 and the third conveying mechanism 4, the driving motor 32 drives the placement table 66 to rotate counterclockwise, and the operation is as follows:

[0053] The first conveying mechanism 4 delivers the fuel nozzle body 5 to the designated position, the driver 93 cooperates with the electric push rod 94 to move, the electric clamping head 95 clamps the fuel nozzle body 5 into the detection cylinder 71 to immerse in oil, and makes the sealing block 78 and the sealing groove 72 seal, the driving motor 32 rotates and drives the detection cylinder 71 and the clamping mechanism 9 to rotate synchronously, the conduit 77 is connected to the fourth feeding frame 83 for ventilation to measure the air tightness, if it exceeds the threshold value and fails, it will be removed from the second conveying mechanism 4, the conduit 77 is disconnected, and the oil in the detection cylinder 71 is discharged into the annular frame 73 through the through hole, and the qualified one is continued to be inspected;

[0054] After the detection cylinder 71 passes the second conveying mechanism 4, the conduit 77 is connected to the first feeding frame 83 to measure the injection amount. If it is unqualified, it will be removed by the third conveying mechanism 4. The oil in the detection cylinder 71 is discharged into the annular frame 73 through the through hole. If it is qualified, it will continue;

[0055] When the detection tube 71 passes over the third conveying mechanism 4, the conduit 77 is connected with the second conveying frame 83, the fuel nozzle body 5 is ventilated to remove the residual oil, and then taken out and placed at the fourth conveying mechanism 4;

[0056] When the detection cylinder 71 passes through the four conveying mechanisms 4, the conduit 77 and the three feeding frames 83 are filled with oil to replenish the detection cylinder 71, thereby realizing cyclic detection. The staff can adjust the parameters as needed to ensure the detection accuracy and control the quality of the fuel nozzle.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fuel nozzle sealing batch detection device, comprising a base (1), characterized in that: A driving mechanism (3) for providing driving force is fixedly connected to the top of the base (1); a working condition simulation mechanism (6) for simulating actual working conditions is arranged on the driving mechanism (3); and a conveying mechanism (4) for inputting and outputting a fuel nozzle body (5) is arranged outside the working condition simulation mechanism (6); The working condition simulation mechanism (6) comprises a support column (61) fixedly connected to the top of the base (1), a fixing ring (62) fixedly installed on the top of the support column (61), a mounting hole (63) provided inside the fixing ring (62), a spring (64) fixedly installed inside the mounting hole (63), a vibration ball (65) fixedly connected to the top of the spring (64), a placement table (66) rotatably connected to the top of the fixing ring (62), a vibration groove (67) for cooperating with the vibration ball (65) provided at the bottom of the placement table (66), and at least eight groups of placement grooves (68) provided on the top of the placement table (66); A detection mechanism (7) for providing a detection environment is arranged on the top of the working condition simulation mechanism (6), the detection mechanism (7) comprising a detection cylinder (71) placed inside the placement groove (68), a sealing groove (72) being provided on the top of the detection cylinder (71), a driving column (75) being fixedly connected to the top of the placement platform (66), a synchronization plate (76) being fixedly connected to the top of the driving column (75), and a guide tube (77) being fixedly connected to the outer side of the synchronization plate (76); A fixing plate (10) is fixedly mounted on the top of the outer side of the conveying mechanism (4); a detection switching mechanism (8) for switching the detection mode is fixedly mounted on the top of the fixing plate (10); the detection switching mechanism (8) comprises a protective shell (81) fixedly connected to the top of the fixing plate (10); at least four pump bodies are arranged inside the protective shell (81); a feed port of the pump body is fixedly connected to a feed pipe (86); a discharge port of the pump body is fixedly connected to a discharge pipe (82); at least four groups of conveying frames (83) are fixedly mounted on the top of the fixing plate (10); the discharge pipe (82) is connected to the fixing plate (10); The feed frame (83) is connected, a transition plate (84) is fixedly connected to the bottom of the fixed plate (10), a connecting groove (85) is provided on the inner side of the transition plate (84), an alignment groove (11) matching with the feed frame (83) is provided on the inner side of the fixed plate (10), and the connecting groove (85) matches with the alignment groove (11), the synchronous plate (76) is rotatably connected with the transition plate (84) and is sealed and fitted, the feed frame (83) is connected with the connecting groove (85), and the conduit (77) passes through the synchronous plate (76) and is connected with the connecting groove (85); The driving mechanism (3) comprises a motor bracket (31) fixedly connected to the top of the base (1), a driving motor (32) fixedly connected to the top of the motor bracket (31), and an output end of the driving motor (32) fixedly connected to the placement table (66); A clamping mechanism (9) for clamping and removing the fuel nozzle body (5) is arranged outside the detection mechanism (7).

2. A fuel nozzle sealing batch detection device according to claim 1, characterized in that: The number of pump bodies and the number of material feeding frames (83) inside the protective shell (81) are the same.

3. A fuel nozzle sealing batch detection device according to claim 1, characterized in that: The clamping mechanism (9) comprises a driving frame (91) fixedly connected to the bottom of the synchronous plate (76), a driving groove (92) is provided inside the driving frame (91), a driver (93) is slidably provided inside the driving groove (92), an electric push rod (94) is fixedly connected to the bottom of the driver (93), a sealing block (78) for matching the sealing groove (72) is fixedly connected to the output shaft of the electric push rod (94), a through hole is provided on the sealing block (78) and the output shaft of the electric push rod (94), the conduit (77) is connected to the through hole provided on the output shaft of the electric push rod (94), an electric clamping head (95) is fixedly connected to the bottom of the sealing block (78), the fuel nozzle body (5) is clamped inside the electric clamping head (95), a through hole is provided on the top of the electric clamping head (95), and the through hole provided on the top of the electric clamping head (95) is connected to the through hole on the sealing block (78).

4. A fuel nozzle sealing batch detection device according to claim 3, characterized in that: A detection module is arranged below the sealing block (78), the detection module comprising an air pressure sensor, a liquid level sensor and a signal transmission module; a control module and a drive module are arranged inside the driver (93); the detection module is signal-connected to the control module, and the control module is signal-connected to the drive module.

5. A fuel nozzle sealing batch detection device according to claim 1, characterized in that: At least four groups of the conveying mechanisms (4) are provided, and pillars (2) for providing support force for the conveying mechanisms (4) are provided at the bottom of the conveying mechanisms (4).

6. A fuel nozzle sealing batch detection device according to claim 1, characterized in that: A connecting hole (69) is provided inside the placement table (66); a through hole communicating with the connecting hole (69) is provided at the bottom of the detection tube (71); an annular frame (73) is fixedly connected to the inner side of the fixing ring (62); at least two communicating holes (74) are provided on the inner side of the annular frame (73); the annular frame (73) and the placement table (66) are rotatably connected and sealed; and the annular frame (73) is connected to an external oil storage tank via an oil outlet pipe.

7. A fuel nozzle sealing batch detection device according to claim 1, characterized in that: The detection tube (71) is made of a transparent material, and a scale mark is provided on the detection tube (71).

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