525 results about "Injector nozzle" patented technology

The invention discloses a convolutional neural network vehicle fuel consumption detection method based on ultrasonic sensors, and relates to the technical field of vehicle fuel consumption detection, and the method comprises the steps: 1, installing a plurality of ultrasonic sensor arrays on a vehicle, and monitoring the liquid level change of a fuel tank through the ultrasonic sensors; step 2, performing normalization processing on data acquired by the ultrasonic sensor, and eliminating differences caused by different measuring devices and measuring environments; and step 3, analyzing the preprocessed data through a convolutional neural network model to obtain the vehicle fuel consumption. According to the convolutional neural network vehicle fuel consumption detection method based on the ultrasonic sensor, the ultrasonic sensor is adopted, non-contact measurement is achieved, mechanical abrasion is reduced, key parameters related to fuel consumption, such as the fuel oil liquid level and the distance from a fuel spray nozzle to a combustion chamber can be accurately measured, and the fuel consumption can be accurately detected through accurate measurement of the parameters. And the actual fuel consumption of the diesel engine can be calculated more accurately.

The invention is suitable for the technical field of automobile fuel injection nozzle forging, and particularly relates to an automobile fuel injection nozzle forge piece forging method and equipment. The method comprises the steps that metal flow resistance, metal flow speed, forging vibration data and lateral force are obtained; determining a target flow velocity based on the metal flow resistance, the metal flow velocity and the forging vibration data; determining an axial strain coefficient and a radial strain coefficient based on the metal flow resistance, the metal flow velocity, the forging vibration data and the lateral force; based on the axial strain coefficient and the target flow velocity, generating a sliding block control instruction, and based on the radial strain coefficient, generating an ejector rod control instruction; and according to the sliding block control instruction and the ejector rod control instruction, a forging and pressing device and a hydraulic device are controlled to forge the automobile oil nozzle forge piece. According to the method, the forge piece forming precision, the production efficiency and the intelligence and automation level of the forging process can be remarkably improved.

The invention provides a double-curved-surface hole wall rotational flow umbrella oil nozzle for low-carbon fuel and a machining method, and relates to the technical field of gas turbine fuel injection. The nozzle comprises a needle valve, a needle valve seat, a spraying hole and a rotational flow groove; the needle valve and the needle valve seat form a sealing conical surface, the inner wall face of a spraying hole of the curved-surface rotational flow umbrella spraying nozzle is a double curved surface, the double curved surface and the sealing conical surface form a ruled surface, the rotational flow groove is formed in the inner wall face of the spraying hole, and the direction of the rotational flow groove is the generatrix of the ruled surface. The inner wall face of the spraying hole is designed to be the curved face, fuel is better guided to flow in the oil nozzle, the area of a low-pressure area is reduced due to sudden change of the direction in the fuel flowing process, and therefore cavitation is restrained from occurring and developing, and the phenomena that the spraying hole is blocked and mist spraying is unstable due to cavitation are improved; the rotational flow grooves in the curved surface can be achieved through the electric spark machining technology, the machining difficulty is reduced, meanwhile, the turbulent kinetic energy and the radial momentum of fuel can be effectively improved, spray distribution is more uniform, and the atomization quality is improved.

According to the dual-fuel afterburner without the inner duct stabilizer, an oil injection rod and an air injection rod are arranged in a supporting plate with a cavity structure, an oil injection nozzle and an air injection nozzle which are communicated are formed in the wall face of the supporting plate, and cooperative combustion of gas fuel and liquid fuel is achieved. According to the afterburner, a stable ignition source is provided through the characteristic that gas fuel is easy to burn, efficient and stable combustion is achieved in cooperation with fuel injection, and therefore a traditional inner duct stabilizer is omitted, the weight of the afterburner is remarkably reduced, and weight reduction and performance optimization of the afterburner are achieved. Evaporative flame stabilizers distributed in the circumferential direction are arranged in the outer duct area to achieve stable combustion of airflow in the outer duct, and flame stability and cross flame performance are guaranteed in cooperation with the supporting plates of the inner duct and fuel gas sprayed out of the supporting plates.

The invention discloses an axial magnetic flux motor based on half-cycle oil injection cooling and an oil injection cooling method thereof.The axial magnetic flux motor comprises motor shells, the two motor shells are symmetrically installed, the two stator assemblies are arranged in the two motor shells respectively, the rotor assembly is arranged between the two stator assemblies through an output shaft, and the rotor assembly is arranged between the two stator assemblies through an output shaft. The two stator assemblies are arranged on the two motor shells, the half-cycle oil injection cooling assemblies are arranged on the two motor shells and correspond to the upper half parts of the two stator assemblies, and the confluence oil outlet assemblies are arranged on the two motor shells and correspond to the bottoms of the two stator assemblies. The heat exchange efficiency is far higher than that of indirect cooling, and meanwhile, the two rows of half-cycle arc-shaped oil nozzles ensure that the cooling oil covers all winding coils, shunt cooling and auxiliary casing flow channel structures, the heat dissipation uniformity is improved, and the problem that the heat dissipation effect of the motor is poor is solved.

The invention provides a fuel injector, an injection system, an injection method and an engine. Wherein the fuel injector comprises a needle valve matching part, the needle valve matching part comprises a needle valve body and a needle valve, and the needle valve is arranged in a mounting space provided in the needle valve body; the pilot valve comprises an armature and an electromagnet, and the electromagnet can drive the armature to move; the middle block is arranged between the needle valve matching part and the pilot valve, the pilot valve is installed on one side of the middle block, and the needle valve matching part is installed on the other side of the middle block; wherein the middle block is provided with a first hole matched with the armature and a second hole matched with the end portion of the needle valve, and the end portion of the armature and the end portion of the needle valve are in fluid communication through a control cavity. And the oil nozzle is arranged at the other end part of the other end of the needle valve and corresponds to the needle valve body.

The invention discloses conveying equipment for a brake caliper shell heat treatment production line, and relates to the field of conveying equipment.The conveying equipment comprises a base, two side frames are fixedly connected to the upper end of the base, sliding grooves are formed in the right sides of the two side frames, and sliding bases are slidably arranged in the two sliding grooves; and rotating shafts are mounted between the two groups of sliding seats and on the left sides of the two groups of side frames through bearings. Through the arrangement of the shifting rod, when the device needs to be filled with oil, the oil spray nozzles can be opened at intervals through the shifting rod, and the piston block can be triggered to downwards extrude lubricating oil through the elastic assembly and the transmission assembly, so that the lubricating oil can be sprayed in gaps of parts such as a roller, a sleeve and a pin shaft of an aligned chain through the oil spray nozzles; automatic opening and closing can be achieved through the lifting mechanism, operation is easy and convenient, and in addition, due to the fact that interval type oil injection is matched with gap injection of the roller, the sleeve, the pin shaft and other parts aligned with the oil injection nozzle, waste of lubricating oil can be reduced.

The utility model relates to the technical field of building construction hoisting, and discloses a tower crane steel wire rope refueling device which comprises a refueling device shell, the refueling device shell comprises an upper shell and a lower shell, an oil outlet is fixedly formed in the center of the bottom of the lower shell, a grating is arranged in the lower shell, and the upper shell and the lower shell are connected through a connecting rod. The upper shell and the lower shell are fixedly connected through bolts and lock catches. According to the tower crane steel wire rope oiling device, in order to better spray lubricating oil to a steel wire rope and recycle the lubricating oil, an oil outlet, a grating, an oil baffle block, the steel wire rope, an oil storage tank, an oil filling port, an oil recovery port, an oil discharge port, an oil level observation port, an oil pump, a heater, a high-pressure oil pipe connector, a first high-pressure oil pipe, a second high-pressure oil pipe, a first oil spray nozzle and a second oil spray nozzle are matched; and an oil accumulating device, a matching oil pipe, a filter, an oil collecting barrel and a recycling oil pipe are arranged, so that cyclic utilization is realized.

The utility model relates to an automatic oil injection device for pressing and heating a stator and rotor iron core for a new energy automobile, which comprises a rack, a first lifting cylinder is fixedly mounted on the outer wall of the rack, and an oil injection cover is mounted at the output end of the top of the first lifting cylinder. A supporting plate fixedly connected with the output end of the first lifting air cylinder is fixedly arranged on the outer wall of the oil injection cover, a sliding rail is fixedly installed on the inner wall of the oil injection cover, a second lifting air cylinder is further fixedly installed on the inner wall of one side of the oil injection cover, and a base is fixedly installed at the output end of the bottom of the second lifting air cylinder; the base is connected with the sliding rail in a sliding mode. According to the automatic oil spraying device for pressing and heating the stator and rotor iron cores for the new energy automobile, the oil spraying nozzle is driven to move up and down and rotate, the oil spraying coverage range is enlarged, oil spraying is more comprehensive, meanwhile, the collecting pipe moves up and down along with the oil spraying nozzle, the collecting effect is good, leakage is prevented, and the oil spraying efficiency is improved.

The invention relates to the field of automobile engine oil nozzles, in particular to an oil nozzle structure with a blockage switching function, which comprises an oil nozzle main body and an oil return assembly, and the oil return assembly is communicated with the top end of the oil nozzle main body; an inner cavity of the oil nozzle body is provided with a plurality of oil channels, one ends of the oil channels are communicated with a main channel, and the main channel is located in the center of the inner cavity of the oil nozzle body. By arranging the multiple sets of oil ducts, the pressure sensor, the high-pressure controller and the high-pressure input switch, the pressure sensor is used for detecting the pressure difference of the oil ducts to judge the blocking condition, then the high-pressure controller controls the high-pressure input switch to close the blocked oil ducts and open the normal oil ducts, and the opening and closing plate is driven through pressure linkage to switch oil ways; the problems that in the prior art, when an oil duct of an oil nozzle is blocked, oil injection is prone to being interrupted, shutdown disassembly and cleaning are needed, operation is tedious, maintenance cost is high, an automatic detection and switching mechanism is lacked, and complex working conditions are difficult to adapt are solved.

The invention discloses a method for machining a deep-hole double-angle small-conical-surface inner cavity of an oil nozzle and the oil nozzle, and the method comprises the following steps that S1, a center drill is used for centering before drilling so as to machine a center hole; s2, a guide drill is used for conducting deep hole guide machining on the center hole so that a first deep hole can be machined; s3, a deep hole drill is used for conducting chambering machining on the first deep hole so that a second deep hole can be machined; s4, forming machining of a taper molded surface is conducted on the second deep hole through a forming drill so that the double-angle small-conical-surface inner cavity deep hole can be machined; when the double-angle small-conical-surface inner cavity deep hole is machined, a forming drill with the drill point angle from large to small is adopted for machining step by step. The method is adopted for deep hole machining of the oil nozzle, machining defects such as inner wall burrs are effectively removed, the machining quality is improved, electric spark machining is replaced with a guide drill, a deep hole drill and the like, the machining time is saved, the production efficiency is improved, and the machining cost is reduced.

The invention relates to the technical field of oil nozzle detection, and discloses an oil nozzle hole angle detection method based on machine vision and a related device. The method comprises the following steps that image recognition and positioning are conducted on a standard sample piece, a datum line is obtained, and the datum line is a left-right bisector penetrating through the standard sample piece; performing image recognition on the to-be-detected oil nozzle to obtain the center of the oil nozzle and the center of the specific hole area of the oil nozzle, and connecting to obtain an oil nozzle hole angle line; and calculating an included angle between the oil nozzle hole angle line and the reference line, judging whether the included angle is within a preset qualified range, and if so, determining that the oil nozzle is qualified. Through the automatic detection technology, the efficiency, reliability and consistency of oil injection hole angle detection are improved, it is ensured that all products meet the strict quality standard, and therefore the defects of a traditional detection method are effectively avoided.

The tilting-pad thrust bearing with the efficient cooling function comprises a tilting-pad thrust bearing body and thrust pads fixedly arranged in the tilting-pad thrust bearing body, an oil nozzle assembly is fixedly arranged between every two adjacent thrust pads, each oil nozzle assembly comprises an oil nozzle seat body, an oil inlet is formed in the bottom of each oil nozzle seat body, and an oil outlet is formed in the bottom of each oil nozzle seat body. An oil inlet channel is formed in the tilting-pad thrust bearing body, the upper end of the oil inlet is communicated with the oil inlet channel, and the lower end of the oil inlet is communicated with a lubricating oil inlet formed in the tilting-pad thrust bearing body; a plurality of through oil injection holes are uniformly formed in the oil injection nozzle seat body, the lower ends of the oil injection holes are communicated with the oil inlet channel, and the upper ends of the oil injection holes are fixedly connected with nozzles; an oil drainage groove is formed in the upper end of the oil nozzle seat body, an oil baffle is fixedly arranged at the upper end of the oil nozzle seat body, the oil baffle is located between the nozzle and the oil drainage groove, and the oil drainage groove is communicated with a lubricating oil outlet formed in the tilting-pad thrust bearing body. Cold oil and hot oil can be effectively separated, the working temperature of the surfaces of the pads is reduced, and the problem that the temperature of the bearing is too high at a high speed and under high load is solved.

The invention belongs to the technical field of aviation detection, and provides a device and method for testing the opening pressure of an ejector nozzle, and the device comprises a case, an oxygen bottle, an oxygen switch, a pressure reducer, a four-way connector, a precision pressure gauge, a pressure release valve, a nozzle detection tool, a flowmeter, an exhaust valve, and a high-pressure hose. The oxygen bottle is externally arranged, is filled with high-pressure oxygen in advance and is used for simulating a high-pressure oxygen source on the machine; the interior of the case is used for accommodating all other parts, and all the parts are connected through high-pressure hoses; the upper panel of the case is provided with an air inlet nozzle, and the right case is provided with an air outlet nozzle and an exhaust nozzle. Wherein the inflating nozzle is used for introducing high-pressure oxygen from an oxygen bottle, and the air outlet nozzle is used for introducing the high-pressure oxygen to the front end of a valve of the ejector nozzle to be tested until the ejector nozzle is pushed open, so that an on-board oxygen system is replaced to carry out an ejector nozzle opening pressure test. According to the invention, whether the opening pressure of the ejector nozzle on the machine meets the use requirement can be conveniently and rapidly detected under the ground condition.

The invention discloses automatic mounting equipment for an oil nozzle. The automatic mounting equipment comprises a feeding mechanism, a transfer mechanism and a locking mechanism, the feeding mechanism comprises a sorting module, a bolt feeding module and two oil nozzle feeding modules, the two oil nozzle feeding modules are arranged on the two sides of the bolt feeding module respectively, and the sorting module is arranged above the bolt feeding module and the oil nozzle feeding modules; the transfer mechanism comprises a transfer clamp and a transfer module, and the sorting module loads the bolts and the oil nozzles onto the transfer clamp; the locking mechanism comprises a positioning device and a tightening module. The bolt feeding module sends out bolts one by one, the sorting module sends the bolts, the single-pipe oil nozzles and the double-pipe oil nozzles to the transfer clamp, the transfer clamp sends the bolts, the single-pipe oil nozzles and the double-pipe oil nozzles to be close to a cylinder body, the transfer mechanism installs the single-pipe oil nozzles and the double-pipe oil nozzles on the transfer clamp to the cylinder body of the positioning device, and then the bolts are tightened through the tightening module. Automatic installation of the oil nozzle is achieved, installation quality is guaranteed, and meanwhile production efficiency is improved.

The invention discloses a position detection system and method of a jet structure and an engine. The position detection system comprises an image acquisition assembly and a prism assembly. Wherein the image acquisition assembly is located in the spraying direction of the spraying structure and is fixed; and the prism assembly is fixed in the mounting cavity, is arranged corresponding to the spraying section of the spraying structure, and is at least used for projecting the spraying section onto the image acquisition surface of the image acquisition assembly. According to the invention, the prism assembly can be utilized to refract an image on the side surface of the jet structure to the horizontal direction, and then the image acquisition assembly is utilized to shoot so as to obtain two two-dimensional projection images in the vertical direction at the same time; and the angle deviation and the translation amount of the part are calculated through image analysis, and the three-dimensional space coordinates of the point to be measured are finally synthesized based on the reference coordinates, so that the injection point position of the oil nozzle is obtained outside the mounting cavity by using a camera and a controller.

The utility model discloses a gear box oil nozzle dimension measuring tool, which comprises a workbench, a distance adjusting assembly, a height adjusting assembly, a positioning assembly and a measuring assembly, the height adjusting assembly is arranged on the surface of the workbench through the distance adjusting assembly, the height adjusting assembly comprises a lifting platform, the measuring assembly is arranged on the lifting platform, and the positioning assembly is arranged on the lifting platform. The oil nozzle is arranged in the measuring range of the measuring assembly through the positioning assembly. The position of the second sliding seat on the transverse measuring pipe is adjusted, so that the oil dripping pipe is located vertically above the oil nozzle, the fixing ring is clamped to the oil nozzle along with descending of the lifting table, oil in the oil dripping pipe can drip into the oil nozzle, and on one hand, the height of the oil nozzle is measured through the position of the lifting table on the scale column; and on the other hand, oil dripped from the oil dripping pipe can enter the oil nozzle to measure whether blockage exists or not, the overall structure is simple, use is convenient, convenience in measurement is improved, and subsequent packaging and use of the oil nozzle are facilitated.

The utility model relates to ball oiling technology field, concretely is a kind of ball oiling device, including conveying structure and oiling structure, wherein, conveying structure includes conveying cover, conveying part and stop piece;Conveying cover is obliquely set up upwards, conveying cover bottom is equipped with inlet and oil outlet, oil outlet is located at the bottom of inlet, and the top of conveying cover is provided with discharge port;Conveying part is located in conveying cover, for conveying ball;Stop piece is located at the both sides of conveying part, for preventing oil liquid to flow out and ball to slide out conveying part, so that ball is immersed in oil liquid;Oiling structure includes oil injection groove and oil injection nozzle, oil injection groove is connected at inlet, and oil injection nozzle is located at the top of oil injection groove, and is communicated with external oil supply equipment and is set. Make ball in oblique conveying process, the cooperation of conveying part and stop piece makes ball limit on conveying part, and make injected oil liquid not flow out, so that ball is completely immersed in oil liquid, realizes comprehensive uniform oiling.

A multi-fuel double-feeding-channel combustion furnace relates to the new technical field of outdoor and kitchen oil gas furnaces and comprises a furnace end body and an inner barrel structure in sealed connection with the interior of the furnace end body, the inner barrel is of a barrel structure with the upper end open and the lower end closed, and the lower portion of the inner barrel is connected with an oil pipeline in a bypass mode and provided with a flow adjusting valve to achieve accurate oil supply control. The upper end of the inner cylinder is in sealed connection with an oil nozzle with a protruding structure, and the protruding part is inserted into an air spraying hole of the air nozzle above. Air is supplied to a cavity formed between the air nozzle and the oil nozzle through an independent air pipeline, so that oil and gas burning can be carried out independently and can also cooperate with each other. According to the structure, the preheating-free function of the oil furnace and the preheating-free function of the low-flash-point fuel are achieved, multiple purposes of one furnace are achieved, and optimization is achieved in the aspects of combustion efficiency improvement and use convenience.

The invention relates to the technical field of paper machine control devices, in particular to a paper machine control device with a load fluctuation suppression function and a control method thereof.The paper machine control device comprises a transmission assembly, a low-pass filter and a lubricating assembly, one side of the lubricating assembly is fixedly connected with an oil conveying assembly, the front end of the lubricating assembly is fixedly connected with a filtering assembly, and the lubricating assembly comprises a base; the top end of the base is fixedly connected with a lubricating box, one side of the lubricating box is fixedly connected with an oil collecting box, an oil collecting groove is formed in the inner side of the lubricating box, the inner side of the lubricating box is fixedly connected with an oil spraying nozzle, and the inner side of the oil collecting groove is fixedly connected with a bearing body and an annular plate; according to the device, continuous lubrication of the bearing is achieved, the service life is prolonged, abrasion and vibration are reduced, equipment stability and production efficiency are improved, maintenance cost is reduced, meanwhile, a transmission system is stabilized, fluctuation influences are reduced, and paper quality and equipment operation efficiency are improved.

The invention provides a secondary vaporization type furnace end which comprises a vaporization assembly, and the vaporization assembly comprises a first oil pipe, an oil pipe connector, a throttling valve, a secondary vaporization heating pipe, a secondary vaporization chamber, a second oil pipe, an oil nozzle connector and a vaporization oil nozzle. And the oil pipe joint is mounted at one end of the first oil pipe. Fuel oil in the first oil pipe is vaporized through the primary vaporization heating pipe, the primarily vaporized fuel oil flows into the second oil pipe, the fuel oil in the second oil pipe is secondarily vaporized through the secondary vaporization heating pipe, and due to the fact that the secondary vaporization heating pipe is bent into a continuous S shape, the heating area of the second oil pipe can be increased; fuel crude oil in the second oil pipe is fully vaporized, and the combustion efficiency of fuel oil is improved; by rotating the throttling valve, the sectional area of an inner channel of the throttling valve can be changed, then the flow of fuel crude oil is adjusted, and when the flow of the fuel crude oil is increased, the combustion firepower is increased, and rapid and accurate adjustment of the combustion firepower is achieved.

This application relates to the field of automotive fuel injector forging technology, and particularly to a forging method and equipment for automotive fuel injector forgings. The method includes: acquiring metal flow resistance, metal flow velocity, forging vibration data, and lateral force; determining a target flow velocity based on the metal flow resistance, metal flow velocity, and forging vibration data; determining axial strain coefficient and radial strain coefficient based on the metal flow resistance, metal flow velocity, forging vibration data, and lateral force; generating a slider control command based on the axial strain coefficient and the target flow velocity, and generating a push rod control command based on the radial strain coefficient; and controlling a forging device and a hydraulic device to forge the automotive fuel injector forging according to the slider control command and the push rod control command, respectively. This method can significantly improve the forging accuracy, production efficiency, and the level of intelligence and automation in the forging process.

The utility model discloses a kind of automatic oilers of mold screw, including electric control part, oil tank, with the oil tank connection oil pipe, rotary arm mounting bracket, rotary arm, rotary oil path block and several oiling rods, the first end of rotary arm is hinged in the rotary arm mounting bracket, second end rotationally installed has rotary oil path block, there is first oil hole in oiling rod, each oiling rod is distributed along the circumference of rotary oil path block, and one end of oiling rod is connected rotary oil path block, another end is installed with the oil injection nozzle that is communicated with first oil hole, rotary oil path block is equipped with lubricating oil distribution structure for distributing lubricating oil from oil pipe to each oiling rod in turn between rotary arm. The utility model can realize automatic oiling, improve work efficiency, and can quantitatively provide lubricating oil for mold screw, oiling effect is good, improve the maintenance quality of pipe pile mould spring screw, prolong the service life of screw, reduce artificial maintenance cost, improve product quality;The utility model is simple in routine maintenance.

The present invention relates to the technical field of fuel injector detection, and specifically to a fuel injector assembly detection device, comprising a support frame, a top air supply mechanism being provided at the top of the support frame, a left clamping mechanism and a right clamping mechanism being provided at the inner left and right ends of the support frame respectively for clamping the fuel injector, a lateral air supply mechanism being provided on the left clamping mechanism and the right clamping mechanism, and a synchronous transmission mechanism being provided on the support frame for driving the left clamping mechanism and the right clamping mechanism to move synchronously, and the lateral air supply mechanism and the top air supply mechanism being coordinated with the bottom sealing mechanism, ventilation detection and sealing can be performed separately on different positions of the fuel injector during the sealing detection of the fuel injector, and different positions of the fuel injector can be detected one by one, which can more intuitively reflect the position where the fuel injector has insufficient sealing, so that the staff can formulate corresponding solutions.

1. The name of the design product: high pressure fuel nozzle detection and cleaning machine (CT700-FN609). 2. The use of the design product: for high pressure fuel nozzle detection and cleaning machine. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model discloses an automatic oil injection device for a forming die. The automatic oil injection device comprises an oil supply system and a compressed air supply system, the oil supply system is provided with a mold oil supply assembly for supplying oil to the mold and a top mold oil supply assembly for supplying oil to the top mold; the compressed air supply system is provided with a mold air supply system connected with the mold oil supply assembly and a top mold air supply system connected with the top mold oil supply assembly. When the mold oil supply assembly works, the mold air supply system is started and provides compressed air for the mold oil supply assembly; when the top die oil supply assembly works, the top die air supply system is started and provides compressed air for the top die oil supply assembly. According to the automatic oil injection device, the automation degree of oil injection of equipment can be improved, the labor intensity of staff operation is reduced, and the safety production coefficient is improved; and the oil injection quantity can be adjusted by changing the aperture of the oil injection nozzle and adjusting the pressure of compressed air, so that the oil injection quantity of the top die of the die can be accurately controlled, and the problems of cost increase and field environment pollution caused by excessive oil injection are avoided.

The utility model provides a diesel engine piston experiment device which comprises a piston model, a transmission mechanism, a simulation cylinder cover and an experiment table. The piston model is located in an inner cavity of the simulation cylinder cover; the simulation cylinder cover is installed on the experiment table, the bottom of the piston model is connected with the piston rod, and the piston rod is connected with the transmission mechanism. A combustion chamber is arranged on the upper surface of the piston model; an oil nozzle is arranged at the top of an inner cavity of the simulated cylinder cover; the piston model is internally provided with an annular cooling cavity, and the bottom of the inner cavity of the simulation cylinder cover is provided with a cooling liquid nozzle aligned with the inlet; the piston model is of a split structure, the split structure with the combustion chamber is the upper portion of the piston, and the side wall of the combustion chamber is partially or completely provided with an oleophylic coating. According to the utility model, the detonation process of different combustion chambers can be simulated, the combustion chamber temperature fields of oleophylic coatings in different areas can be simulated, and experimental data is provided for later optimization of the piston combustion chamber.

The present invention relates to the technical field of fuel injector detection, and in particular to a diameter detection device for a fuel injector nozzle hole and a method thereof, which comprises a support plate, a transmission component is provided on the top of the support plate, and an output component is provided on the top of the support plate; a detection mechanism, which comprises a rotating component provided on the top of the output component, and a plurality of detection components are provided on the surface of the rotating component. Automatic transmission and rotation drive of the fuel injector are achieved through the transmission component and the output component. The rotating component of the detection mechanism drives the detection component to rotate synchronously, and cooperates with the centering component to automatically complete the centering of the fuel injector hole and the detection needle during the rotation process. The relative motion generated by the rotation of different axes is used to realize automatic insertion detection of the detection needle, and the close contact between the detection needle and the nozzle hole is ensured by the extrusion component. The cleaning pad and the ink-stained pad complete the cleaning and marking before and after the detection, so as to realize efficient and accurate detection of the nozzle hole diameter of the fuel injector.

The utility model discloses an outer circle grinding and oil spraying device in the technical field of cylindrical outer circle grinding and rust prevention, which is characterized in that an oil spraying nozzle is arranged above or below a conveying roller, so that a workpiece is driven by the conveying roller to be ground and polished by a grinding unit and then continuously moves to an oil spraying range of the oil spraying nozzle, and the workpiece is prevented from being damaged. Protective oil is sprayed to the surface of a workpiece through the oil spray nozzles, meanwhile, the workpiece moves in the axial direction of the conveying rollers and rotates under driving of the conveying rollers, the oil spray nozzles can spray oil to the workpiece in all directions, the working procedures of workpiece grinding and polishing and protective oil spraying are integrated in the stroke of the same conveying unit, the intermediate transferring step is omitted, and the working efficiency is improved. The machining process is reduced, the machining efficiency is improved, meanwhile, the equipment cost is saved, meanwhile, the conveying rollers are used for driving the workpiece to axially move and rotate, the protective oil can be comprehensively sprayed to the workpiece without moving the oil spraying nozzle, the driving characteristic of the conveying unit is fully utilized, and the influence of the protective oil on the health of workers is reduced.

The present application relates to the technical field of additive manufacturing, and discloses a laser-laser additive and subtractive combined forming method for group-hole complex structures, which is used for manufacturing a nozzle head of a space engine by using a pulse laser selective melting device, and is used for performing group punching on the fuel nozzle by using a pulse laser, so that the nozzle head part of the space engine becomes an integral whole, and the punching efficiency is improved, and the manufacturing time and cost are greatly shortened. The present application is simple to operate, basically does not need manual operation, shortens the processing time, saves manpower, greatly improves the processing efficiency, has good forming quality, and has product quality superior to that of traditional mechanical processing.