CN2244105Y - Computer type cleaning and checking instrument for oil injection device - Google Patents
Computer type cleaning and checking instrument for oil injection device Download PDFInfo
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- CN2244105Y CN2244105Y CN 95230832 CN95230832U CN2244105Y CN 2244105 Y CN2244105 Y CN 2244105Y CN 95230832 CN95230832 CN 95230832 CN 95230832 U CN95230832 U CN 95230832U CN 2244105 Y CN2244105 Y CN 2244105Y
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- oil sprayer
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- motor
- chip microcomputer
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Abstract
The utility model relates to a computer type cleaning and checking instrument for an oil injection device, which is a repairing instrument for cleaning and checking the oil injection device of a gasoline-injection engine. A dial disc or a keyboard disc which sets the work pulse frequency of the oil injection device and pulse width percentage is electrically connected with a single chip microcomputer. The single chip microcomputer which sends out a pulse signal is orderly and electrically connected with a photoisolator, a power amplification circuit and a tested oil injection device. A motor, a hydraulic pump, an overflow valve, a clamping arrangement and the tested oil injection device are connected to realize the examination of the operating performance of the oil injection device.
Description
The utility model belongs to the maintenance device to computer-controlled gasoline-injection engine oil sprayer.It relates to aspects such as one chip microcomputer application technology, hydraulic regulation and surveying and oil nozzle of car engine maintenance technique.
According to the classification of computer-controlled gasoline-injection engine oil sprayer being cleaned method of calibration, mainly contain at present with regard to three kinds of car ablution, maintenance clean method and independent ablutions.More than three kinds of methods application is all arranged in the maintenance and repair of oil sprayer.The main both at home and abroad product of using has: DAE-9009, DAE-902 etc.They all have the simulated engine operating conditions, measure the fuel injection quantity of oil sprayer, oil sprayer are carried out functions such as seal tightness test and cleaning oil sprayer.The analysis showed that still do not have the product that adopts the design of the utility model technological method to produce both at home and abroad by retrieval.
The purpose of this utility model is to use the one chip microcomputer technology, and the various working staties of simulation oil sprayer on motor are cleaned the also workmanship of verification oil sprayer.Make oil sprayer after cleaning verification, working properly, reliable on motor car engine, in use power character is best to guarantee to reach motor car engine, fuel economy the best, exhaust emission minimum.
The system architecture of technical solution of the present utility model and working principle are as shown in Figure 1.
The utility model is made up of following three parts: tested oil sprayer fastening device and fuel injection quantity measuring device; Hydraulic regulation and measuring device; With the one chip microcomputer is the simulation control and the display unit of core.Wherein, first portion is made up of fastening device (1), tested oil sprayer (2), fuel injection quantity measuring cup (3); Second portion is made up of fluid storage tank (5), relief valve (6), oil hydraulic pump (7), filter cleaner (8), pressure gauge (9), coupling (10), motor (11); Third part is made up of various tutorial light or display device (12), one chip microcomputer control unit (13), power supply (14), various switch or button and dial-up dish (15), liquid level sensor (16), oil sprayer connecting line (17).Tested oil sprayer fastening device and fuel injection quantity measuring device as a self-contained unit, are called clamp device; And hydraulic regulation and measuring cell, one chip microcomputer control unit and display group are lumped together, be called control gear.Be that clamp device and control gear are separate on the general structure.By rapid pipe joint (4) two-part oil hydraulic circuit is coupled together, the driving of oil sprayer is drawn from control gear by the oil sprayer connecting line (17) of special use.One chip microcomputer operation dedicated program, combined with hardware circuit, the pulse of sending different frequency, different pulse width percentage, the variation of simulated engine rotating speed and load condition.In order to check the oil sprayer of different model motor, regulate cleaning fluid pressure, the oil-fired system working pressure of simulated engine by relief valve.Also the pressure of hydraulic system is measured with pressure gauge or pressure transducer.The utility model can be realized cleaning to the stand alone type cleaning of oil sprayer and verification and with regard to the car formula.So-called stand alone type to oil sprayer is cleaned and verification be meant oil sprayer removed from motor after, cleaning cleaning and verification on the tester.Cleaning with regard to car is exactly oil sprayer not to be pulled down from motor, and directly cleans oil sprayer onboard.
Owing to adopted technique scheme, can simulate the various operating modes of oil sprayer on motor, adopt the pressure wash mode, can recover the oil sprayer service behaviour, thereby verification the oil sprayer workmanship; Can carry out the leakage rate check to oil sprayer, determine the sealing of oil-fuel injector needle-valve; Clamp device and control gear are united use, can carry out stand alone type to oil sprayer and clean and verification, can also utilize control gear that oil sprayer is carried out cleaning with regard to the car formula; On circuit design, consider the difference of the oil sprayer load characteristic of different resistances, guaranteed the reliability of oil sprayer work; The non-contact switch circuit that adopts the controllable silicon reverse parallel connection to be constituted, the spark when not producing the relay contact disconnection has been eliminated the possibility of lighting inflammable mixture.
For technical solution of the present utility model is described, illustrated with following embodiment.
Fig. 2 is the structural drawing of control gear.Among Fig. 2,4 rapid pipe joints, 5 fluid storage tanks, 6 relief valves, 7 oil hydraulic pumps, 9 pressure gauges, 10 coupling, 11 motor, 18 cabinets, 19 tutorial light, 20 dial-up dishes, 21 buttons, 22 handles, 23 electric control boxs, 24 relief valve fixing bottom-plates, 25 oil hydraulic pump fixed supports, 27 ammeters, 28 pulse output plugholes, 26 chassis backplanes.
Filter cleaner (8) and liquid level sensor (16) are housed in the fluid storage tank (5), and fluid storage tank (5) is installed on cabinet (18) framework.One chip microcomputer control unit (13) and power supply (14) are housed in the electric control box (23).Electric control box (23) is installed on cabinet (18) framework.Ammeter (27), pressure gauge (9), tutorial light (19), dial-up dish (20), key switch (21) etc. all are arranged on the front panel of cabinet (18).Motor (11) links by coupling (10) and oil hydraulic pump (7).Motor (11) directly is fixed on the chassis backplane (26) by bolt; Oil hydraulic pump (7) is fixed by bolts on the chassis backplane (26) by oil hydraulic pump fixed support (25), makes hydraulic regulation, control section constitute an integral body.Draw by the hydraulic hose of the cleaning solution with certain pressure on cabinet (18) rear board that oil hydraulic pump (7) produces, and link with the oil hydraulic circuit of rapid pipe joint (4) with clamp device.
Fig. 3 is an oil sprayer clamp device structural drawing.Among Fig. 3,2 tested oil sprayers, 4 rapid pipe joints, 3 fuel injection quantity measuring cups, 29 bracket bases, 30 guide pillars, 31 locking nut (bolt), 32 die holders, 33 vernier knobs, 34 nuts, 35 punch holders, 36 liner plates, 37 measuring cups folder, 38 holddown springs.
The fastening device of clamp device has two guide pillars (30).Garden shape guide pillar (30) lower end is milled with the plane of certain width, is fixed on the bracket base (29) by screw.Garden shape guide pillar (30) upper end car has the screw thread of certain-length, penetrate in the hole, garden at punch holder (35) two ends, by nut (34) fastening (perhaps the direct tapping in hole, garden with punch holder (35) two ends becomes tapped hole, and then the screw thread of guide pillar (30) end is screwed into, and forms scyewed joint).Punch holder has hydraulic channel in (35), and it communicates with the conical seat hole of 4 fixing tested oil sprayers.Die holder (32) can move up and down along guide pillar (30), and is fixed in upward a certain position of guide pillar (30) according to the size of tested oil sprayer by locking nut (31).Guide pillar (30), locking nut (bolt) (31), die holder (32) constitute the locking framework of fixing tested oil sprayer.Vernier knob (33) and die holder (32) constitute the fine setting locking framework of fixing tested oil sprayer.Locking framework has following several scheme.
First kind of scheme, as shown in Figure 3.It is that car goes out the screw thread of certain-length in guide pillar (30) appropriate location, middle and upper part, and the characteristics of utilizing locking nut (31) to move up and down along guide pillar (30) are supported in certain position with die holder (32), thereby reach the purpose that tested oil sprayer is fixedly clamped.
Second kind of scheme, as shown in Figure 4.Guide pillar (30) mills into the plane respectively except that two ends up and down and car goes out the screw thread, and the middle part is an isodiametric garden post.Die holder (32) two ends are drilled with the hole, garden of matching with guide pillar (30) middle part, and the two ends of hole, garden and die holder (32) are cut.A side tap out hole therein, opposite side gets out unthreaded hole.After lock(ing) bolt (31) passes unthreaded hole, be screwed into tapped hole.After tightening lock(ing) bolt (32), will make die holder (32) clamp guide pillar (30) and be fixed on the corresponding position.
The third scheme, as shown in Figure 5.For front second kind of described garden of scheme shape guide pillar (30), bore hole, garden last and the same size of guide pillar (30) at the two ends of die holder (32), hole, garden and guide pillar (30) adopt the fit dimension of maximal clearance, and in die holder (32) end axis tap out hole longitudinally, and then be screwed into lock(ing) bolt (31).The end of lock(ing) bolt (31) withstands on the guide pillar (30), realizes the location to die holder (32).
The fine setting locking framework as shown in Figure 3.On the relevant position of the fixing tested oil sprayer of die holder (32), process the internal thread that links with vernier knob (33) outside thread.When rotating vernier knob (33), it is moved along short transverse, realize independent adjustment to each tested oil sprayer clamping force.
In Fig. 3, fuel injection quantity measuring cup (3) is fixing with the measuring cup folder (37) that has certain flexible material to make.Measuring cup folder (37) becomes U-shaped, by screw on liner plate (36).Holddown spring (38) is pressed on fuel injection quantity measuring cup (3) on the die holder (32).The harm that can as far as possible avoid the cleaning solution volatilization to be caused like this.
Fig. 6 is for making the circuit theory diagrams of pulse parameter input with the dial-up dish.Circuit mainly consists of the following components.
The one chip microcomputer control unit of first portion for being connected and being connected to form by reset button (72), electric capacity (74), resistance (70) by one chip microcomputer cpu chip (50), eight bit data latch (51) and memory under program (52).
Second portion is by oil spout number of times dial-up dish (55) (56) (57), oil sprayer working pulse frequency dial-up dish (58) (60) (61), pulse width percentage dial-up dish (63) (64), and the Instrument working state parameter input that constitutes that links to each other with the data buffer of being controlled by NOR gate device (102) (53) (59) (62) (65) respectively is provided with circuit.
The injector control circuit of third part for being connected to form by phase inverter (49), optoelectronic isolator (76) (98), power amplifier (77) (91), tested oil sprayer (78) (79) (88) (89), diode (83) (86), reed switch relay contact (80), resistance (82) (84) (85) (87), oil sprayer ammeter (27), oil sprayer work indicator light (90), resistance throw over switch (81), oil sprayer play button (67).
The 4th part is for referring to by phase inverter (49), optoelectronic isolator (48), driver (47), relay (42), diode (43), motor work that lamp (46) is connected and controllable silicon (44) (45), motor (11) is connected and motor play button (66) is formed electromotor control circuit.
The power circuit of the 5th part for being connected to form by safety fuse cutout (94), controllable silicon (41) (40), power switch (39), stabilized power supply (93) connection and phase inverter (49), resistance (68), power work tutorial light (69).
The liquid level alarm circuit of the 6th part for being connected to form by liquid level sensor (75), resistance (73), liquid level warning tutorial light (71).
To narrate the working procedure that oil sprayer cleans tester below comprehensively.
Hydraulic system between control gear shown in Figure 2 and the clamp device shown in Figure 3 is linked up, be about to rapid pipe joint (4) butt joint.Tested oil sprayer after fixing on the clamp device, is linked up tested oil sprayer again with oil sprayer connecting line (17) and control gear.
With power switch (39) closure, control gear is connected power supply.Ac is divided into two-way, and one the tunnel for stabilized power supply (93), one tunnel power supply motivation (11).Stabilized power supply (93) output 5 volts and 12 volts of two kinds of voltages, 5 volts of power supplys are mainly supplied with the digital circuit device, and 12 volts of power supplys are mainly supplied with the analog circut device.Behind stabilized power supply (93) output voltage, singlechip CPU chip (50) electrification reset immediately under the effect of reset circuit, computer enters working state.At this moment, whole system is just carried out work under the support of program.CPU is carried out initialization, again power supply indicator (69) is lighted.
With dial-up dish (20) parameters such as oil spout number of times, pulse frequency and pulse width percentage are set, after pressing oil sprayer play button (67), after CPU inquires the oil sprayer working state from the I/O port of appointment, immediately with set oil sprayer working state parameter, from data buffer (53) (59) (62) (65), be read among the CPU, and be stored in the internal RAM unit of appointment.CPU is by the requirement of set parameter, send the pulse signal of individual features again from the I/O port of appointment, behind phase inverter (49), optoelectronic isolator (76) (92), power amplifier (77) (91), drive tested oil sprayer (78) (79) (88) (89) work, simultaneously, oil sprayer work indicator light (90) is also along with glittering.
After pressing motor play button (66), after CPU inquires the motor work order from the I/O port of appointment, send signal from the I/O port of appointment, through reverser (49), optoelectronic isolator (48), driver (47), relay (42) moves its make contact, make controllable silicon (44) (45) conducting, motor (11) running, motor work refer to that lamp (46) lights.Motor (11) drives oil hydraulic pump (7) running, and oil hydraulic pump (7) just can be exported the cleaning solution with certain pressure.The pressure of cleaning solution is regulated by relief valve (6), and the numerical value of pressure is shown by pressure gauge (9).When the driving pulse number of times reaches specified value, stop motor and oil sprayer work automatically.In case of necessity, press reset button (72), motor and oil sprayer also can quit work, and simultaneously corresponding tutorial light (46) (90) also extinguishes.
When oil sprayer is carried out stand alone type cleaning and verification, need motor and tested oil sprayer to work simultaneously; When oil sprayer is carried out the leakage test of leak check, only need motor work; When oil sprayer is carried out cleaning with regard to car, also only need motor work; Another kind of working state is exactly control gear is outwards exported variable frequency and variable pulse width by pulse output plughole (28) a pulse signal.Four kinds of above working staties can utilize number disc to set.Its concrete function setting sees Table 1.Number disc is arranged to 000 or at 00 o'clock, represents function corresponding respectively.Table 1 dial-up dish is set pulse parameter and function
Liquid level alarm circuit is monitored the liquid level of the cleaning solution in the fluid storage tank automatically, and when the cleaning liquid level was lower than alarm liquid level, the make contact of liquid level sensor (75) was sent alarm signal by CPU.And motor and oil sprayer are quit work simultaneously.
Because the resistance of tested oil sprayer electromagnetic coil is divided into 3 ohm and 16 ohm two kinds mostly.In order to protect oil sprayer,, be provided with corresponding additional resistance change-over circuit according to the size of tested oil sprayer resistance.For the oil sprayer of 13～16 ohm of big resistances, press resistance throw over switch (81) after, just make the four pairs of contacts of reed switch relay (80) closed simultaneously, additional resistance is just by short circuit.Motor and oil sprayer may not worked under certain function simultaneously, therefore, have taked software interlocking measure in programming.
Except that the circuit design of the above-mentioned input mode of doing the pulse parameter with the dial-up dish, can also adopt shown in Figure 7 with keyboard and nixie tube make displays pulse parameter input and output mode.The main distinction of Fig. 7 and Fig. 6 circuit is that the pulse parameter of being made up of SCM system (95), keyboard and nixie tube display interface circuit (96), keyboard (97), nixie tube (98), nixie tube driver (99) is imported and the design of display circuit.Pressure transducer (100) records cleaning fluid pressure and gives SCM system (95) through A/D converter (101), so that show pressure.Keyboard and nixie tube display interface circuit (96) can adopt keyboard and the static display circuit with serial line interface, or form keyboard and display circuit with interface chips such as 8155,8279.Remaining part and Fig. 6 circuit are basic identical.Above design proposal can obtain the display device of enough figure places and the supervisory keyboard of sufficient amount.Oil sprayer working pulse output number of times demonstration nixie tube is arranged to 3, and the pulse width percentage demonstration nixie tube of oil sprayer working pulse is arranged to 2, and oil sprayer working pulse frequency demonstration nixie tube is arranged to 3.Shared 8 nixie tubes.In addition, keyboard can also be provided with other function key except that the 0-9 figure key is set, as reset key, motor job key, oil sprayer job key, leak hunting test key, pulse run-out key, with regard to the car cancel key etc.The parameter setting is provided with the key except that being provided with oil spout number of times, pulse width percentage, pulse frequency, also will has the parameter input to revise key, memory key etc., 21 keys need be set altogether.
Claims (9)
1, a kind of computer-shape oil sprayer cleans check meter, in cabinet, one chip microcomputer is connected with power amplification circuit, electric electromechanics, motor, oil hydraulic pump, pressure gauge link to each other, and it is characterized in that: dial-up dish or keyboard that oil sprayer working pulse frequency and pulse width percentage are set are electrically connected with one chip microcomputer; The one chip microcomputer that sends pulse signal is connected lead with optoelectronic isolator, power amplification circuit, additional resistance, oil sprayer, tested oil sprayer is electrically connected in proper order; One chip microcomputer, electromotor control circuit, sequence motor are electrically connected; Be equipped with the pressure gauge of oil sprayer operating current table and hydraulic system on case front panel top; Power knob on the plate, motor play button, oil sprayer play button, resistance throw over switch, reset button are electrically connected with one chip microcomputer in front; Liquid level sensor, cleaning solution liquid level alarm circuit are electrically connected with one chip microcomputer; The relief valve of motor, oil hydraulic pump, adjusting pressure, clamp device, tested oil sprayer link to each other; Fastening device, tested oil sprayer, measuring cup connect from top to bottom; Oil sprayer clamp device and control gear are separate.
2, computer-shape oil sprayer according to claim 1 cleans check meter, and it is characterized in that: three groups of dial-up dishes link to each other with data buffering device and CPU.
3, computer-shape oil sprayer according to claim 1 cleans check meter, and it is characterized in that: the keyboard of some links to each other with keyboard and display interface circuit and CPU with nixie tube.
4, computer-shape oil sprayer according to claim 1 cleans check meter, and it is characterized in that: oil sprayer operating current table is series in the oil sprayer circuit.
5, computer-shape oil sprayer according to claim 1 cleans check meter, it is characterized in that: connect with oil sprayer after additional resistance and the parallel connection of reed switch relay contact.
6, computer-shape oil sprayer according to claim 1 cleans check meter, it is characterized in that: the oil sprayer clamp device separates with control gear, two-part oil hydraulic circuit is linked by rapid pipe joint, and oil sprayer is connected with the oil sprayer lead with the pulse output plughole of control gear.
7, computer-shape oil sprayer according to claim 1 cleans check meter, it is characterized in that: clamp device is equipped with punch holder and die holder on two guide pillars, punch holder is fixed, and die holder can move and can be by locking nut or locked with bolts on a certain position of guide pillar along guide pillar; Vernier knob is housed on the die holder, and measuring cup is fitted together with it.
8, computer-shape oil sprayer according to claim 1 cleans check meter, it is characterized in that: motor, oil hydraulic pump, relief valve are placed control gear cabinet bottom, and electric control box, fluid storage tank place control gear cabinet middle part.
9, computer-shape oil sprayer according to claim 1 cleans check meter, it is characterized in that: two controllable silicons of two groups of reverse parallel connections constitute non-contact switch circuit and are series in power supply and the motor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230832 CN2244105Y (en) | 1995-04-12 | 1995-04-12 | Computer type cleaning and checking instrument for oil injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230832 CN2244105Y (en) | 1995-04-12 | 1995-04-12 | Computer type cleaning and checking instrument for oil injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2244105Y true CN2244105Y (en) | 1997-01-01 |
Family
ID=33875587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95230832 Expired - Fee Related CN2244105Y (en) | 1995-04-12 | 1995-04-12 | Computer type cleaning and checking instrument for oil injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2244105Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866000A (en) * | 2012-09-04 | 2013-01-09 | 深圳市大族激光科技股份有限公司 | Laser detection system |
| CN106089533A (en) * | 2016-08-15 | 2016-11-09 | 潍柴西港新能源动力有限公司 | A kind of fuel gas injection valve cleans and gas leakage detection equipment and detection method |
| CN106089431A (en) * | 2016-07-01 | 2016-11-09 | 王秀华 | A kind of mobile automobile atomizer cleaning machine |
-
1995
- 1995-04-12 CN CN 95230832 patent/CN2244105Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866000A (en) * | 2012-09-04 | 2013-01-09 | 深圳市大族激光科技股份有限公司 | Laser detection system |
| CN102866000B (en) * | 2012-09-04 | 2015-08-05 | 大族激光科技产业集团股份有限公司 | Laser detection system |
| CN106089431A (en) * | 2016-07-01 | 2016-11-09 | 王秀华 | A kind of mobile automobile atomizer cleaning machine |
| CN106089533A (en) * | 2016-08-15 | 2016-11-09 | 潍柴西港新能源动力有限公司 | A kind of fuel gas injection valve cleans and gas leakage detection equipment and detection method |
| CN106089533B (en) * | 2016-08-15 | 2018-08-10 | 潍柴西港新能源动力有限公司 | A kind of cleaning of fuel gas injection valve and gas leakage detection device and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |