Intelligent atomization test bench

Abstract

The invention discloses an intelligent atomization test bed which comprises a bed body part, a display screen, an operation box, an oil pump part, an oil tank part, a distribution board, a clamp part and an oil mist cleaner. When the oil nozzle matching part performance test is carried out, automatic clamping and intelligent pressure regulation are realized, the automation degree is high, and the consistency of the oil nozzle matching part performance test is improved; specifically, through the arranged clamping assembly, a telescopic rod of a clamping air cylinder can move upwards through an operation button, then an oil nozzle abuts against an oil sprayer body, and clamping automation is achieved; through the arranged pressure adjusting assembly, a pressure adjusting motor can drive a pressure adjusting shaft to rotate through an operation button, and then the pretightening force of a pretightening spring in the oil sprayer is adjusted so as to adjust the spraying oil pressure; through the sensor on the high-pressure oil pipe, the oil injection quantity can be conveniently detected, meanwhile, the atomization effect can be observed, the labor intensity of testers is greatly relieved, and the labor efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fuel injection nozzle experimental equipment, and in particular to an intelligent atomization test bench. Background Art

[0002] For many years, the performance test of fuel injector pairs has been carried out by inspectors manually clamping and tightening the cap on a hand pump, using a hand pump to pump oil, manually adjusting the pressure, and visually judging the atomization state. The judgment standard is difficult to grasp and the labor intensity is high. How to solve the shortcomings of low automation, misjudgment, poor detection consistency, low efficiency and high labor intensity in the existing fuel injector pair performance test is an important direction that the current fuel injector pair experimental equipment needs to develop. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and propose an intelligent atomization test bench, comprising a test bench bed, the interior of the test bench bed is an L-shaped cavity, an oil mist cleaner is arranged at the bottom of the L-shaped cavity, and an oil tank and an oil pump part are arranged at the upper and lower parts of the upper half of the L-shaped cavity; the oil tank is connected to the oil pump part; The oil pump part includes a mounting box, a motor support is fixedly mounted on one side of the mounting box, a servo motor is fixedly mounted on the motor support, a coupling is fixedly mounted on the output shaft of the servo motor, a camshaft is transmission-connected to the coupling, a fuel injection pump is arranged above the camshaft, the oil inlet end of the fuel injection pump is connected to the oil tank through an oil pipe; a high-pressure oil pipe is arranged at the oil outlet end of the fuel injection pump, and the high-pressure oil pipe is connected to the injector body arranged on the top front side of the experimental bench bed.

[0004] Preferably, a display screen and a laboratory bench operating box for conveniently observing the experimental results are provided on the top of the laboratory bench bed.

[0005] Preferably, a sensor for detecting the fuel injection amount is provided on the high-pressure oil pipe.

[0006] Preferably, a clamping assembly for clamping the fuel injector is arranged on the front side of the test bench, the clamping assembly includes a cylinder mounting base, a clamping cylinder is fixedly mounted on the inner cavity of the cylinder mounting base, an oil baffle disc is fixedly mounted on the upper part of the cylinder mounting base; an atomization rack is fixedly mounted on the telescopic rod of the clamping cylinder, and the fuel injector to be tested is plugged into the atomization rack.

[0007] Preferably, the atomization frame comprises vertical shafts fixedly arranged on both sides of the oil baffle disc, and atomization frame sliding sleeves slidably connected to the vertical shafts, and the atomization frame sliding sleeves are respectively fixedly connected to a middle plate and a lower plate at the top and bottom; A fuel injector plug-in hole is provided in the middle of the middle plate, and a fuel injector to be tested is plugged into the fuel injector plug-in hole; The lower plate is fixedly mounted to the telescopic rod of the cylinder.

[0008] Preferably, an oil shield is also provided on the clamping cylinder, and the oil shield is located at the lower part of the lower plate.

[0009] Preferably, the experimental platform body also includes a pressure regulating assembly, which includes a mounting support, a pressure regulating motor is fixedly mounted on the top of the mounting support, a pressure regulating shaft is drivingly connected to the output shaft of the pressure regulating motor, and the pressure regulating shaft is abutted against a preload spring in the injector body.

[0010] Preferably, guide shaft cylinders are provided on both sides of the pressure regulating shaft to facilitate orienting the extension and retraction direction of the pressure regulating shaft.

[0011] Compared with the existing technology, the beneficial effects of the present invention are: when performing performance testing of the nozzle pair, the present invention realizes automatic clamping and intelligent pressure regulation, has a high degree of automation, and improves the consistency of the performance test of the nozzle pair; specifically, through the set clamping component, the telescopic rod of the clamping cylinder can be moved upward by operating the button, so that the nozzle and the injector body are abutted to realize clamping automation; through the set pressure regulating component, the pressure regulating motor can be operated by the button to drive the pressure regulating shaft to rotate, so as to adjust the preload force of the preload spring in the injector to realize the adjustment of the injection oil pressure; through the sensor on the high-pressure oil pipe, the injection amount can be conveniently detected, and the atomization effect can also be observed. The device greatly reduces the labor intensity of the test personnel, realizes one person and multiple machines, and improves labor efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of an intelligent atomization test bench proposed by the present invention (main view); Figure 2 This is a schematic diagram of the overall structure of an intelligent atomization test bench proposed by the present invention (left view); Figure 3 This is a schematic diagram of the structure of the oil pump part in an intelligent atomization test bench proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the pressure regulating and clamping parts in an intelligent atomization test bench proposed by the present invention.

[0013] In the figure: a test bench bed 1, an oil mist cleaner 2, an oil tank 3, a display screen 11, a test bench operation box 12, a distribution board 13, and an electromagnetic reversing valve 14; Oil pump part 4, mounting box 41, motor support 42, servo motor 43, coupling 44, camshaft 45, fuel injection pump 46, high-pressure oil pipe 47, sensor 48, Clamping assembly 5, cylinder mounting base 51, clamping cylinder 52, oil baffle disc 53, oil nozzle to be tested 54, vertical shaft 55, atomizing frame sliding sleeve 56, middle plate 57, lower plate 58, oil baffle cover 59; The pressure regulating assembly 6 , the mounting support 61 , the pressure regulating motor 62 , the pressure regulating shaft 63 , the injector body 64 , and the guide shaft cylinder 65 . DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] Referring to the drawings, the present embodiment provides an intelligent atomization test bench, including a test bench bed 1, the interior of the test bench bed is an L-shaped cavity, an oil mist cleaner 2 is arranged at the bottom of the L-shaped cavity, and an oil tank 3 and an oil pump part 4 are arranged at the upper and lower parts of the upper part of the L-shaped cavity; the oil tank 3 is connected to the oil pump part; The oil pump part 4 includes a mounting box 41, a motor support 42 is fixedly mounted on one side of the mounting box 41, a servo motor 43 is fixedly mounted on the motor support 42, a coupling 44 is fixedly mounted on the output shaft of the servo motor 43, a camshaft 45 is drivingly connected to the coupling 44, a fuel injection pump 46 is arranged above the camshaft 45, a cam is mounted on the camshaft, and the cam is connected to the piston in the fuel injection pump; the oil inlet end of the fuel injection pump 46 is connected to the oil tank 3 through an oil pipe; the oil outlet end of the fuel injection pump 46 is provided with a high-pressure oil pipe 47, and the high-pressure oil pipe 47 is connected to the injector body 64 arranged on the top of the front side of the experimental platform bed 1. Here, the servo motor drives the camshaft to rotate through the coupling so that the fuel injection pump pressurizes the fuel and ensures the high-pressure oil of the atomization test bench.

[0016] Furthermore, a display screen 11 and a laboratory bench operation box 12 for observing the experimental effect are arranged on the top of the laboratory bench body, and a power distribution board 13 is arranged inside the laboratory bench body 1.

[0017] Furthermore, the high-pressure oil pipe 47 is provided with a sensor 48 for detecting the injection amount.

[0018] Furthermore, the front side of the experimental platform 1 is provided with a clamping assembly 5 for clamping the fuel injector, and the clamping assembly 5 includes a cylinder mounting base 51, the inner cavity of which is fixedly mounted with a clamping cylinder 52 and a solenoid reversing valve, and the upper part of the cylinder mounting base 51 is fixedly mounted with an oil retaining disc 53; the telescopic rod of the clamping cylinder is fixedly mounted with an atomizing rack, and the fuel injector 54 to be tested is plugged into the atomizing rack. The solenoid reversing valve is connected to the air source of the clamping cylinder, and the switching of the solenoid reversing valve is controlled by the on-off of the PLC control relay, and the switching of the relay is used to control the reversing of the solenoid reversing valve, and the lifting and lowering of the cylinder is realized by the reversing of the solenoid reversing valve, thereby realizing the automatic clamping and loosening of the workpiece.

[0019] Furthermore, the atomizing frame includes a vertical shaft 55 fixedly arranged on both sides of the oil baffle disc 53, and an atomizing frame sliding sleeve 56 slidably connected to the vertical shaft 55, and the atomizing frame sliding sleeve 56 is fixedly connected to a middle plate 57 and a lower plate 58 at the top and bottom respectively; A fuel injector plug-in hole is provided in the middle of the middle plate 57, and the fuel injector 54 to be tested is plugged into the fuel injector plug-in hole; The lower plate 58 is fixedly mounted to the telescopic rod of the clamping cylinder 52 .

[0020] Furthermore, an oil shield 59 is also provided on the clamping cylinder 52 , and the oil shield 59 is located at the lower part of the lower plate 58 .

[0021] Furthermore, a pressure regulating assembly 6 is also provided at the front side of the test bench body 1, and the pressure regulating assembly includes a mounting support 61, a pressure regulating motor 62 is fixedly mounted on the top of the mounting support 61, a pressure regulating shaft 63 is drivingly connected to the output shaft of the pressure regulating motor 62, and the pressure regulating shaft 63 is abutted against the preload spring in the injector body 64. The rotation of the pressure regulating motor is controlled by the PLC control system according to the test working condition requirements, and the pressure regulating motor drives the pressure regulating shaft to rotate, thereby realizing different pressures of the injection system. Furthermore, the pressure regulating shaft 63 is inserted into the guide shaft tube 65 .

[0022] Working principle: When it is necessary to conduct an atomization experiment, the fuel injector to be tested is first fixed in the fuel injector plug-in hole, and then the clamping cylinder 52 is started, the telescopic rod of the clamping cylinder moves upward, and at the same time drives the atomization frame to rise as a whole, the fuel injector to be tested is pressed against the fuel injector body, and then the operation button on the operation box is pressed to conduct the fuel injection atomization experiment; when it is necessary to adjust the oil pressure, it is only necessary to adjust the pressure regulating motor, and the pressure regulating motor drives the pressure regulating shaft to rotate, and then the preload force of the preload spring in the fuel injector body 64 is adjusted to achieve the adjustment of the injection oil pressure.

[0023] In the above embodiments and working principles, Through the set clamping assembly, the telescopic rod of the clamping cylinder can be moved upward by operating the button, so that the fuel nozzle and the injector body can be abutted to realize automatic clamping; through the set pressure regulating assembly, the pressure regulating motor can be driven to rotate the pressure regulating shaft by operating the button, so that the preload force of the preload spring in the injector can be adjusted to realize the adjustment of the injection oil pressure; through the sensor on the high-pressure oil pipe, the injection amount can be conveniently detected, and the atomization effect can also be observed.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent atomization test bench, comprising a test bench bed, characterized in that: The interior of the experimental table bed is an L-shaped cavity, an oil mist cleaner is arranged at the bottom of the L-shaped cavity, and an oil tank and an oil pump part are arranged at the upper and lower parts of the upper part of the L-shaped cavity; the oil tank is connected to the oil pump part; The oil pump part includes a mounting box, a motor support is fixedly mounted on one side of the mounting box, a servo motor is fixedly mounted on the motor support, a coupling is fixedly mounted on the output shaft of the servo motor, a camshaft is transmission-connected to the coupling, a fuel injection pump is arranged above the camshaft, the oil inlet end of the fuel injection pump is connected to the oil tank through an oil pipe; a high-pressure oil pipe is arranged at the oil outlet end of the fuel injection pump, and the high-pressure oil pipe is connected to the injector body arranged on the top front side of the experimental bench bed.

2. The intelligent atomization test bench according to claim 1, characterized in that: A display screen and an experimental bench operation box for observing the experimental effect are arranged on the top of the experimental bench body, and a power distribution board is arranged inside the experimental bench body accordingly.

3. The intelligent atomization test bench according to claim 1, characterized in that: The high-pressure oil pipe is provided with a sensor for detecting the injection amount.

4. The intelligent atomization test bench according to claim 1, characterized in that: A clamping assembly for clamping the fuel injector is arranged on the front side of the experimental platform, and the clamping assembly includes a cylinder mounting base, and a clamping cylinder and an electromagnetic reversing valve are fixedly mounted in the inner cavity of the cylinder mounting base, and an oil baffle disc is fixedly mounted on the upper part of the cylinder mounting base; an atomization rack is fixedly mounted on the telescopic rod of the clamping cylinder, and the fuel injector to be tested is plugged into the atomization rack.

5. The intelligent atomization test bench according to claim 1, characterized in that: The atomization frame comprises vertical shafts fixedly arranged on both sides of the oil baffle disc, and atomization frame sliding sleeves slidably connected to the vertical shafts, and the atomization frame sliding sleeves are respectively fixedly connected to a middle plate and a lower plate at the top and bottom; A fuel injector plug-in hole is provided in the middle of the middle plate, and a fuel injector to be tested is plugged into the fuel injector plug-in hole; The lower plate is fixedly mounted to the telescopic rod of the cylinder.

6. The intelligent atomization test bench according to claim 5, characterized in that: The clamping cylinder is also provided with an oil shield, and the oil shield is located at the lower part of the lower plate.

7. The intelligent atomization test bench according to claim 5, characterized in that: The clamping cylinder is controlled by an electromagnetic reversing valve, and the electromagnetic reversing valve is electrically connected to the operating table.

8. The intelligent atomization test bench according to claim 1, characterized in that: The experimental platform body also includes a pressure regulating assembly, which includes a mounting support, a pressure regulating motor is fixedly mounted on the top of the mounting support, a pressure regulating shaft is drivingly connected to the output shaft of the pressure regulating motor, and the pressure regulating shaft is abutted against the preload spring in the injector body.

9. The intelligent atomization test bench according to claim 8, characterized in that: Guide shaft cylinders are arranged on both sides of the pressure regulating shaft to facilitate directing the extension and retraction direction of the pressure regulating shaft.

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