CN1268836C - Quick ultraprecision reworking process of motorcycle engine on assembly line - Google Patents
Quick ultraprecision reworking process of motorcycle engine on assembly line Download PDFInfo
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- CN1268836C CN1268836C CN 01107224 CN01107224A CN1268836C CN 1268836 C CN1268836 C CN 1268836C CN 01107224 CN01107224 CN 01107224 CN 01107224 A CN01107224 A CN 01107224A CN 1268836 C CN1268836 C CN 1268836C
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Abstract
The present invention relates to rapid ultra-precise reprocessing technology for motorcycle engines. Under the precondition of not affecting productive paces of an original production line, the length of a general assembly line of a traditional motorcycle engine is appropriately extended, and a unique air distribution mechanism is adopted. Under the condition that compressed air drives a single-cylinder engine to rotate, multi-blade type processing liquid and cleaning liquid are led in for carrying out the two processing steps of rapid ultra-precise processing and rapid thorough cleaning for each rubbing pair of the engine so as to make the engine have the advantages of high quality, high performance indexes and high rate of high-grade products. Simultaneously, the present invention has the advantages of greatly reducing repair rate before/after the engine is sent out of factories and decreasing manufacturing cost at the same time of achieving the quality of advanced world standards by eliminating hot running-in after assembly and users' use running-in periods.
Description
Technical field
The present invention relates to improvement to production motorcycle engine technology on the motorcycle engine general assembly line.
Technical background
1, traditional assembly technology
Tratitional technology is on the motorcycle engine general assembly line, with parts and other part of having dressed up, and by certain precedence and requirement, assembling finished product motorcycle engine.Manufacturing process on the general assembly line is generally 12 operations.Load onto suction tude, Carburetor, silencing apparatus after rolling off the production line, motor is carried out hot running-in.To produce CB125 type motorcycle production line is example, and its flow process is shown in (Fig. 1), and technology comprises: (1) installs bent axle, starting shaft, major-minor axle, speed-changing drum, mould assembling; (2) group plate, variable-speed shaft assembly are installed; (3) fitting machine oil pump, driving gear, clutch pack; (4) right crankcase cover, starting shaft oil sealing etc. are installed; (5) piston assembly, A, B stud bolt, cylinder block are installed; (6) dress chain guide, adjustable lever, cylinder head; (7) timing gear, gimmal, accent valve clearance are installed; (8) cylinder-head cover, the left and right lid of cylinder head are installed; (9) magneto rotor is installed; (10) the actuating motor assembly is installed; (11) do watertight test; (12) roll off the production line and be installed into tracheae, Carburetor, silencing apparatus, carry out hot running-in, see for details shown in (Fig. 1).
2, the drawback of traditional assembly technology
Because the motorcycle engine component are in manufacture process, be subjected to the restriction of the factors such as process equipment, technical merit, material therefor, production management and cost of design level, employing, its accuracy of manufacturing and other quality index can only propose suitable requirement and corresponding quality standard.The requirement of the dimensional accuracy of the various component of manufacturing, form and position tolerance and surface roughness neither be very high; The error that allows in the test stone of NBS, the inevitable scratch that produces in error in the checkout procedure and the processing and assembling process in addition, damage, cut etc., make on the friction pair that forms between each moving element of motor, exist a large amount of comprehensive defectives, these defectives have formed the hidden danger that has a strong impact on the motorcycle engine product quality and performances.To the motor of having dressed up, these defectives are difficult to detect and use common manufacturing process to be difficult to eliminate, and it is generally acknowledged and have only by solving in factory's hot running-in process.The product that dispatches from the factory also requires the user at the use initial stage, and control engine speed, load use 1000 ~ 5000 kilometers of break-ins (coming across the phase).
3, heat is rubbed and is closed the problem of existence
In the hot running-in process, taken a large amount of places, consume more man-hour and fuel and lube stock, cause the environmental pollution of difficult eliminations such as bigger noise, waste gas, required expense is more, has occupied the certain proportion of cost of production, has retrained the development of business economic benefit.Most crucial is that the motor of newly dressing up must be through 3000 rev/mins high rotation speed operation machines oil pressure in the hot running-in process.Under the comprehensive function of high speed, high temperature, high pressure and external torque, each moving element produces very big active force and reaction force.In hundreds of friction pairs of complete machine, as piston and cylinder sleeve, bent axle and connecting rod bearing, porthole and valve guide, gear engagement face and other bearing, oil sealing etc.Can form these two kinds very disadvantageous friction types of boundary friction or dry friction, add the new parts surface and bump, abrade and cooperate bad comprehensive function, make these friction pairs very easily cause sharp wear.Even, ploughing, scratch, stickability damage mill appear.The probability that these damages will make motor catastrophe failure, critical failure occur rises significantly, and repair rate generally reaches about 5-20%, has influenced the performance and the complete machine quality of motor dramatically.Making can become acceptable product even motor high-class product originally, behind hot running-in, just may do " bad machine ".Cause goodwill impaired, economic benefit descends.
In the requirement by China's motorcycle product quality inspection rules (QC/T29115-93), in 4 security personnel's projects, motor accounts for two, i.e. idling pollutant (GB14621-93), noise (QC/T29116).In the sampling observation model machine if any 2 two defective or in 200 kilometers are travelled check if catastrophe failure or critical failure, the row inspection qualification of this enterprise will be cancelled.Because the problem that aforementioned hot existed in the period of adjustment can not make constant product quality.Therefore, relevant enterprise personnel is always on tenterhooks to annual test.Because in case row detects problem, enterprise will be ordered to stop production and forbid selling.
Though can be by increasing substantially the means of component machining accuracy, the hot running-in technology of having sublated, the equipment performance of high-precision processing requires very high, drops into also very big.
Summary of the invention
The purpose of this invention is to provide a kind of method of on the motorcycle engine general assembly line, motor being carried out quick ultraprecise reprocessing, be the length of the traditional motorcycle engine general assembly line of proper extension, under the prerequisite that does not influence original productive temp, increase nano level " ultraprecise reprocessing fast " and fast, thoroughly clean two operations, make the motor of production have high quality, high performance index, high mass stability and reliability, high high-class product rate, sublated simultaneously factory's hot running-in technology and user use the requirement of break-in (coming across the phase).Can also reduce manufacture cost greatly.
Above-mentioned order of the present invention is to realize by such technological scheme, on promptly a kind of general assembly line of motorcycle engine again motor is carried out the method for quick ultraprecise reprocessing, and method comprises following operation:
(1) bent axle, starting shaft, major and minor axle, speed changer, mould assembling are installed;
(2) group plate, variable-speed shaft assembly are installed;
(3) fitting machine oil pump, driving gear, clutch pack;
(4) right crankcase cover, starting shaft oil sealing etc. are installed;
(5) piston assembly, A, B stud bolt, cylinder block are installed;
(6) dress chain guide, adjustable lever, cylinder head;
(7) timing gear, gimmal, accent valve clearance are installed;
(8) cylinder-head cover, the left and right lid of cylinder head are installed;
(9) the motor semi-finished product are carried out quick ultraprecise reprocessing;
(10) motor through quick ultraprecise reprocessing is carried out thoroughly cleaning fast;
(11) magneto rotor is installed;
(12) the starter motor assembly is installed;
(13) do watertight test;
(14) roll off the production line, pack, put in storage;
2, the implementation step of " online reprocessing " method
In above-mentioned operation (9), the step of the motor semi-finished product being carried out quick ultraprecise reprocessing is:
(1) fixed point prerinse
Promptly at the oil filler place of motor installation oil scale, injection pressure is in 1.5 ~ 2 kilograms per centimeter
2Washing agent, reach in the standby flood whole spaces after, keep injecting, discharging is equal to 14 ~ 16 seconds of flow, again pressurized air is blown, inhales from the oil filler of motor, the induction tunnel that the purge cock hole of motor is connect, discharge scavenger specially, make its less residue in 50 grams, at this moment can adopt the method for 2 engine revolution of hand primer, so that scavenger specially is thoroughly discharged; Scavenger specially is uninterruptedly to reclaim through recovery tube, recycles after oil filter is handled;
(2) ultraprecise reprocessing fast
Oil filler place at motor installation oil scale adds the multi-edge type working fluid, pressurized air is by the suction tude of the left hole 11 sending and receiving motivations of main distributing valve (Fig. 4), the right hole 12 of main distributing valve is communicated with the secondary distributing valve (Fig. 5) at the spark plug screw place that is contained in motor, with pressurized air, be used as power and drive the engine crankshaft rotation, make it reach 60-150 rev/min, and the moment of torsion of the 20-30% of Maximum Torque when in rotary course, executing engine design outside on the output shaft of motor, make the multi-edge type working fluid in each movement process, carry out micro cutting less than 10 nanometer to 1 micron number magnitudes to each friction pair of motorcycle engine, extruding, abrasive machining.Because general precision is higher during fabrication for each matching surface of motor, and is also brighter and cleaner, but there are defectives such as burr, sharp edge, surface stress be inhomogeneous.When these friction pairs in movement process, when adopting multi-edge type working fluid that granularity prepares less than 5 microns various dissimilar abrasive material to its re-surface, just form wet lapping and cooperated and ground the processing mode that combines, and this mode has high efficiency, high-precision characteristics (relevant theory sees annex 1-1,1-2,1-3,2-1,2-2 for details), and its amount of finish can be controlled in less than between 10 nanometers to 1 micron.In course of working, not only eliminated the various defectives of these friction pairs in manufacture process, made simultaneously that original matching surface is brighter and cleaner, quality of fit is higher; Owing to be that the motorcycle engine semi-finished product of having dressed up are processed; In the semi-finished product rotary course of compressed air-driven motor, not only energy consumption is low does not have exhaust emission pollution, and the motor a series of problems that can also avoid hot running-in to cause; This operation is consuming time on production line simultaneously is not more than 6 minutes, but its processing effect can be equivalent to motor carried out 10-20 hour hot running-in, so the present invention is called quick ultraprecise reprocessing.
The multi-edge type working fluid is carried by oil pump, and its pressure is the 1-2 kilograms per centimeter
2, flow is not less than 10 liters/minute, injects simultaneously to the tank filler sleeve place of each motor incessantly, keeps the oily level of motor regulation, the pipeline at the purge cock place ceaselessly discharges and collects.
(3) thoroughly clean fast
In above-mentioned operation (10), the step that the motor through quick ultraprecise reprocessing is carried out thoroughly cleaning fast is:
1. stop to carry the multi-edge type working fluid, pressurized air is blown, inhales from the oil filler of motor, the induction tunnel that the purge cock hole of motor is connect, discharge the multi-edge type working fluid, make its less residue in 50 grams;
2. at the oil filler place of motor installation oil scale, injection pressure is in 1.5 ~ 2 kilograms per centimeter
2Washing agent, reach in the standby flood whole spaces after, after being disposed to the standard pasta,, add the rotating speed and the moment of torsion in man-hour before the maintenance with the compressed air-driven motor, keep injection, discharging to be equal to flow and to clean, after 1 ~ 2 minute, in engine revolution, again pressurized air is blown, inhales from the oil filler of motor, the induction tunnel that the purge cock hole of motor is connect, discharge washing agent, make its less residue in 50 grams;
3. carry out brunishing-in: reduce the outer 6-10% that moment of torsion is the engine design Maximum Torque that applies, 60-80 ℃ the standard machine oil of being heated to by oil filler place injection engine, reach the standard pasta, and increase compressed-air actuated delivery volume, make engine speed≤1000 rev/min, the seating time is 10-15 second; Uninterruptedly inject, discharge and collect the lubricant oil of injection in the running-in, inhale, blow off the Residual oil of engine sump tank at last with pressurized air, make it be less than 50 grams.
The description of the drawings
The embodiment of the indefiniteness that said method of the present invention can provide by accompanying drawing further specifies.
(1) the present invention has following accompanying drawing:
Accompanying drawing 1 is the processing schematic representation of motorcycle engine assembly line of the prior art;
Accompanying drawing 2 is the processing schematic representation of motorcycle engine assembly line of the present invention;
Accompanying drawing 3 carries out the schematic representation of the manufacturing procedure of quick ultraprecise reprocessing to motorcycle engine on general assembly line for the present invention;
The structure sectional view of the main distributing valve that adopts in the manufacturing procedure of accompanying drawing 4 for quick ultraprecise reprocessing;
The structure sectional view of the secondary distributing valve that adopts in the manufacturing procedure of accompanying drawing 5 for quick ultraprecise reprocessing;
The generalized section of the manual inertia fastener that adopts in the manufacturing procedure of accompanying drawing 6 for quick ultraprecise reprocessing.
(2) capital equipment and processing section
Referring to accompanying drawing 3: in the embodiment of the manufacturing procedure of this quick ultraprecise reprocessing, on general assembly line, increase the length of placing 8 motors, compressed air tunnel a, washing agent conveyance conduit b, multi-edge type working fluid conveyance conduit c, standard oil delivery pipeline d and washing agent recovery channel b1, multi-edge type working fluid recovery channel c1, standard machine oil recovery channel d1 are set in its vicinity.Air compressor also correspondingly is installed source of the gas, various valve are provided, pump, the filter of washing agent, multi-edge type working fluid and standard machine oil, strong magnetic cylinder, gas-liquid separation device, two groups of scalable flexible pipes and flexible pipe returning device and induction tunnel are supplied with in rapid pipe joint.
In accompanying drawing 3,1-master's distributing valve, the secondary distributing valve of 2-, the 3-engine charge mouth of pipe, the 4-engine exhaust mouth of pipe, 5-motor oil filler, 6-motor purge cock hole, the 7-motorcycle engine, 7.1-7.8 is the procedure position of motor on general assembly line.The manufacturing procedure of carrying out the reprocessing of quick ultraprecise is the A section, the section at place when the B section then be fast thorough washing process.
(3) main distributing valve structure and working procedure
Referring to accompanying drawing 4, the main distributing valve among the figure is a unidirectional three-way valve, is made of inlet hole 8, epicoele 9, valve 10, right hole 11, left hole 12, cavity of resorption 13, valve rod 14, housing 15, cam 16; Wherein compressed air inlet port 8 is positioned at the top of main distributing valve, and right hole 11, left hole 12 are positioned at the middle part of valve body, and valve 10 is withstood on downwards on the valve seat by Returnning spring, and the below of valve rod 14 has the cam 16 on the conical surface that is installed in engine crankshaft.Hole, the left and right sides is connected with pipeline with the engine charge mouth of pipe (Fig. 3-3) with secondary distributing valve (Fig. 5) respectively.Valve rod makes valve rod upwards promote valve along with the bent axle of motor drives the cam rotation, and inlet hole is communicated with left and right sides pore.45 ° the time, cam upwards promotes valve rod after bent axle goes to engine tope center; 115 ° the time, cam does not promote valve rod after cam continues to rotate to piston top dead center, and valve closing stops air feed.
(4) supplementary-air valve structure and working procedure
Referring to accompanying drawing 5, the valve body that the secondary distributing valve among the figure is made of upper, middle and lower core pipe, inlet hole 17, valve 18, upper valve core 20, following core pipe 22 and lower end screw rod 23 thereof constitute; Wherein upper valve core 20 is positioned at valve pocket, its top has inlet hole 19, the valve 18 that is connected with the upper valve core top upwards withstands on suction port 17 places by Returnning spring, has by-pass hole 21 on the following core pipe 22, its lower end is a screw rod 23, it is contained in cylinder covers in the screw (Fig. 3-2) of original dress spark plug.The left hole 12 of main distributing valve (Fig. 4), right hole 11 communicate with the suction tude of motor and the inlet hole 17 of secondary distributing valve upper end respectively by flexible pipe.Secondary distributing valve is before main distributing valve pressurized air enters, and upper valve core is sealed by valve, and following core pipe communicates with by-pass hole on the valve body, motorcycle engine cylinder top is communicated with atmosphere, thereby make cylinder top not produce pressure when piston moves up.
Referring to accompanying drawing 6, in the quick ultraprecise rework process that this patent is invented, manually the inertia fastener is the special tool of special quick mounting and dismounting main valve 1, by handle 24, inertia handle 25, sliding bearing 26, stationary bushing 27, lock screw 28, chuck 29, stud bolt 30, locking nut 31 is formed, wherein stud bolt 30 is installed in an end of chuck 29, be with locking nut 31 on it, the other end of chuck has inertia handle 25, one end of handle 24 is with sliding bearing 26 and stationary bushing 27, is installed in the inertia handle 25 by lock screw 28.When main distributing valve 1 is mounted and dismounted on the left box body of motor 7, fix and dismantle with 8 manual inertia fasteners, manually the inertia fastener promptly has the double action of instrument and bolt.The operator hands handle 24, and another hand propulsion inertia handle 25 rotates rapidly, stud bolt 30 is entered in the motor left box body screw and compresses main distributing valve seat with the end of locking nut 31, reaches the purpose of fixing main distributing valve.Counterrotating inertia handle 25 then during dismounting.
4, on general assembly line, motorcycle engine is carried out the operating process of quick ultraprecise process for subsequent treatment
Be elaborated below in conjunction with the quick ultraprecise rework process of 3 couples of the present invention of accompanying drawing.
(1) preparatory work
On this manual general assembly line, be generally the blanking time that its motor rolls off the production line per 3 minutes one, require promptly that every motor waiting time generally is no more than 3 minutes on each station, general assembly line can the balanced operation of smooth implementation flowing water.Because adopt the manual motor that promotes to advance, the time lag of every motor assembling is also left certain adjustment leeway.In the A of (Fig. 3) section, 7.8 the motor on the station after fixed point prerinse is pushed on 7.7 stations by manual, at this moment utilize manual inertia fastener on the motor left box body, main distributing valve to be installed, and by the diagram requirement, with the supply and the reclaim line of 5 gladhands installation compressed air conveying pipelines and secondary distributing valve, " multi-edge type " working fluid.Rotating speed on request and torque drive engine revolution are imported " multi-edge type " working fluid then, hang up at engine mission under the condition of I retaining, and motor is carried out ultraprecise reprocessing.Install that various valves and processing are total consuming timely to be less than 3 minutes.
(2) ultraprecise reprocessing and thoroughly cleaning
Then this motor is moved on 7.6 stations, carries out ultraprecise reprocessing 1.2 ~ 1.5 minutes with the II retaining; This motor is pushed again and moves on 7.5 stations, carries out ultraprecise reprocessing 1.2 ~ 1.5 minutes with the III retaining.Consider the length and the operation convenience of bellows, the motor that on 7.5 stations, processes, after removing 5 relevant rapid pipe joints, when being pushed on 7.4 stations, again connect 5 relevant rapid pipe joints of second group, on 7.4 and 7.3 station, with IV retaining and V retaining motor to be carried out ultraprecise again and reprocess, consuming time on each station is 1.2 ~ 1.5 minutes.After 7.2 station completion of processing, the supply of interrupting " multi-edge type " working fluid is with pressurized air in-engine " multi-edge type " working fluid that blows, exhausts.With valve control, supply with special-purpose cleaning solution through the engine motor oil oil filler, motor is thoroughly cleaned.After the cleaning, blow with pressurized air, in-engine cleaning solution exhausts.Remove that " multi-edge type " working fluid injects and during recovery channel, and push this motor to 7.1 stations.
(3) motor carries out the rough inspection of running-in processing and " online reprocessing " quality
On 7.1 stations, compressed air conveying pipeline continues constant and adds inlet and motor purge cock hole place's installation code engine oil supplying and reclaim line at engine motor oil, and rotating speed on request and moment of torsion carry out running-in to motor.After brunishing-in is finished, remove the pressurized air supply pipeline; And cylinder pressure gage is installed in by-pass hole place of secondary distributing valve, and remove starting lever with hand and drive engine revolution 2-3 time, write down the barometer reading, and calculate its mean value.If mean value 〉=6 kilograms per centimeter
2, then this motor is acceptable product; If it is average 〉=8 kilograms per centimeter
2, this motor is a Grade A; When mean value 〉=9 kilograms per centimeter
2, this motor can be defined as high-class product.After inspection finishes, emit standard machine oil and remove all and outreach the overall process that pipeline, valve etc. have also been finished the reprocessing of whole ultraprecises, and move to the dress magneto rotor operation of former assembly line.
When first motor moved to 7.7 stations by 7.8 stations, second motor to be processed promptly entered 7.8 stations, and the like for after 8 motors have accounted for this section general assembly line; 7.1 during the reach of the motor on the position, a motor to be processed promptly enters 7.8 stations by last process and carries out above-mentioned processing.
The present invention under the condition that does not need other instrument, can reach the purpose of quick mounting and dismounting owing to adopt manual inertia fastener.
Finish cleaning and two events in operation of running-in in the B section of cleaning fast thoroughly, 1.5 ~ 2 minutes consuming time to motor.On 7.2 stations, close the multi-edge type working fluid, feed pressurized air at engine motor oil oil filler 5, the multi-edge type working fluid by motor purge cock hole 6 through recovery channel c1 and utilize the ejector action of induction tunnel, accelerate the eliminating of working fluid, with the less residue that reaches working fluid in the purposes of 50 grams.
This moment, the turbidity test of motor also can reach≤0.3 requirement that restrains, thereby had finished whole purposes of motorcycle engine being carried out ultraprecise reprocessing on general assembly line.
Need to prove ultraprecise reprocessing, thoroughly clean fast and, all be, on assembly line, finish during transposition along with motorcycle engine constantly moves forward on general assembly line to the overall process that motor carries out running-in.In addition, the injection of pressurized air, multi-edge type working fluid, washing agent and lubricant oil, discharging collection process are all used various valves, and connections such as rapid pipe joint, hose expansion piece and flexible pipe realize.Different is that moment of torsion, speed range are had any different; The multi-edge type working fluid is got rid of wherein ferro-alloy smear metal with strong magnetic cylinder; With the mechanical admixture in device clear washing agents such as oil filter and the lubricant oil.In relating to the reclaim line of liquid, be equiped with gas-liquid separator, enter pressurized air in the liquid with eliminating.
5, the mechanism of the prescription of multi-edge type working fluid and quick ultraprecise reprocessing
(1) prescription of multi-edge type working fluid
Multi-edge type working fluid of the present invention is made up of major ingredients such as synthetic diamond, corundum, silicon carbide, chromium oxide and auxiliary material, between the Mohs hardness 7-10 of major ingredient, and micro-penetration hardness 1120-10006 kilogram/millimeter
2, proportion 3.2-5.21 gram per centimeter
3, its granularity is W1-W5, size is at 0.5-5 micron (10
-6m).During major ingredient was formed, equilateral, polygonal had a sharp cutting edge, is convenient to cutting; Triangle and sword shape in working angles, constantly become sharp granule, thereby higher cutting rate is arranged; Sphere is convenient to extruding and polishing.During these are formed, there are hardness height, good toughness, self-sharpening to reach good cutting ability and durability well, are fit to cutting is carried out on the high surface of hardness; Though the hardness that has is lower, toughness is relatively poor, be more suitable for softer surface is processed, therefore have stable, good cutting, grinding, extruding comprehensive process performance.
The multi-edge type working fluid is when preparation, and its basic recipe is: in the major ingredient, and synthetic diamond 5-8%, corundum 15-20%, silicon carbide 8-10%, chromium oxide 15-16%.In the auxiliary material, molybdenum disulfide 0.8-1%, oleic acid 14-15%, stearic acid 14-15%, hog grease 6-7%, beeswax 2.5-3%, laurylene base butadiene 0.18-0.2%, surplus is a spindle oil.The above-mentioned main materials and auxiliary materials for preparing is called basestocks.When carrying out ultraprecise reprocessing, in basestocks, add spindle oil, the ratio that makes basestocks account for 7-8% is advisable, to form the multi-edge type working fluid of fluidised form.
(2) processing mechanism of quick ultraprecise reprocessing
In the ultraprecise rework process, the multi-edge type working fluid for preparing is carried with oil pump fast, and its pressure is the 1-2 kilograms per centimeter
2, flow is not less than 10 liters/minute, injects to the tank filler sleeve place of motor incessantly, keeps the oily level of motor regulation, the pipeline at the purge cock place ceaselessly discharges and collects.Enter the fluidised form multi-edge type working fluid of engine sump tank, launched machine oil pump is delivered to vittate each position; Connecting rod and the strong effects of splashing such as fluid scouring of pressure are arranged in addition makes each friction pair that need lubricate these working fluids that all distributing equably.Be compressed in the process of air driven rotation at motor, the moment of torsion of the 20-30% of Maximum Torque when torque controller imposes this engine design to bent axle, to these friction pairs cut apace, extruding and abrasive machining.Because the matching gap of each friction pair of motorcycle engine generally is not less than 0.02 millimeter (2 * 10
-5M), and the overall dimensions of the multi-edge type working fluid that uses only is 1/4, promptly 5 * 10
-6M, thus peak value, the burr of the surface irregularity that these working fluids only form in processing, assembly process the parts with frication pair surface, damage, the outstanding positions of microcosmic such as cut, distortion process, its amount of finish is from less than 10
-9M (10 nanometer) is to 10
-6M (micron) order of magnitude, thus the bright and clean degree and the quality of fit of each surface of friction pair improved significantly, can not cause excessive processing and damage intact position, other surface, and this processing can't be accomplished in the engine component manufacture process fully.Therefore, whole ultraprecise reprocessing process can be thought a kind of flexible machining process.This processing also can be eliminated the tensile stress that forms in the general processing at each rubbing surface, produces residual compressive stress, thereby improves fatigue strength.
(3) recovery of multi-edge type working fluid and recycling
In above-mentioned course of working, be to collect the multi-edge type working fluid that is added incessantly, the purification plant in recovery channel recycles after handling.In the pipeline that the uninterrupted circulating collection of multi-edge type working fluid reclaims, get rid of the iron containing alloy corpuscle that produces in the course of working by the strong magnetic cylinder of installing, when improving Engine Cleanliness Level, prolonged the working life of working fluid.Because working fluid injects with pipeline and reclaims, and recycles under closed state, its life-span can reach the requirement of 50,000-60,000 motors of processing.
6, the prescription of washing agent
The present invention injects washing agent by pipeline to motor on the operation of fast thorough cleaned engine, motor is cleaned.The preparation of this washing agent be equivalent to respectively motor winter or summer automobile oil viscosity, good flowability, lubricity are arranged and to the stronger suspension of solid phase particle.So, can make the mechanical admixture of each friction pair and other space in the machine can reach the purpose of thorough cleaning.
The prescription of described washing agent is: stearic acid 18-20%, hog grease 7-8%, beeswax 4.5-5%, oleic acid 14-15%, surplus are spindle oil; Its formula rate changes by winter, summer temperature suitably to be adjusted.
With quick ultraprecise rework process, the motor of processing and assembling on general assembly line, the hot running-in process after the general assembly of not only having sublated, the user that also sublated uses running-in period, that is: the phase of coming across reaches 0 kilometer requirement.On the basis that guarantees product percent of pass, the high-class product rate is increased substantially, the motor of production not only has more superior performance index, and has high mass stability and reliability.Have again the motor forward and backward repair rate of dispatching from the factory is descended significantly, the quality of product that makes motorcycle engine is when reaching advanced world standards, and manufacture cost also descends to some extent.
Claims (5)
1, a kind of method of on the motorcycle engine general assembly line, motor being carried out quick ultraprecise reprocessing, method is made of following operation:
(1) bent axle, starting shaft, major and minor axle, speed-changing drum, mould assembling are installed;
(2) group plate, variable-speed shaft assembly are installed;
(3) fitting machine oil pump, driving gear, clutch pack;
(4) right crankcase cover, starting shaft oil sealing etc. are installed;
(5) piston assembly, A, B stud bolt, cylinder block are installed;
(6) dress chain guide, adjustable lever, cylinder head;
(7) timing gear, gimmal, accent valve clearance are installed;
(8) cylinder-head cover, the left and right lid of cylinder head are installed;
(9) the motor semi-finished product are carried out quick ultraprecise reprocessing;
(10) motor through quick ultraprecise reprocessing is carried out thoroughly cleaning fast;
(11) magneto rotor is installed;
(12) the starter motor assembly is installed;
(13) do watertight test;
(14) roll off the production line, pack, put in storage;
In above-mentioned operation (9), the processing steps of the motor semi-finished product being carried out quick ultraprecise reprocessing is:
1. the prerinse of fixing a point
Promptly at the oil filler place of motor installation oil scale, injection pressure is in 1.5～2 kilograms per centimeter
2Washing agent, reach in the standby flood whole spaces after, keep to inject, discharging is equal to 14～16 seconds of flow, again with the oil filler of pressurized air from motor, the induction tunnel that the purge cock hole of motor is connect blows, inhales, and discharges scavenger specially, makes its less residue in 50 grams, at this moment can adopt the method for 2 engine revolution of hand primer, so that scavenger specially is thoroughly discharged; Scavenger specially is uninterruptedly to reclaim through recovery tube, recycles after oil filter is handled;
2. ultraprecise reprocessing fast
Oil filler place at motor installation oil scale adds the multi-edge type working fluid, pressurized air is by the suction tude of left hole (11) the sending and receiving motivation of main distributing valve, the right hole (12) of main distributing valve is communicated with the secondary distributing valve at the spark plug screw place that is contained in motor, drive the engine crankshaft rotation with compressed air, make it reach 60-150 rev/min, and the moment of torsion of the 20-30% of Maximum Torque when in rotary course, executing engine design outside on the output shaft of motor, make the multi-edge type working fluid to each friction pair of motorcycle engine in each movement process, carry out micro cutting less than 10 nanometer to 1 micron number magnitudes, extruding, abrasive machining, this operation are consuming time on production line to be not more than 6 minutes.The multi-edge type working fluid is carried by oil pump, and its pressure is the 1-2 kilograms per centimeter
2, flow is not less than 10 liters/minute, injects simultaneously to the tank filler sleeve place of each motor incessantly, keeps the oily level of motor regulation, the pipeline at the purge cock place ceaselessly discharges and collects;
In above-mentioned operation (10), the step that the motor through quick ultraprecise reprocessing is carried out thoroughly cleaning fast is:
1. stop to carry the multi-edge type working fluid, with the oil filler of pressurized air from motor, the induction tunnel that the purge cock hole of motor is connect blows, inhales, discharges the multi-edge type working fluid, makes its less residue in 50 grams;
2. at the oil filler place of motor installation oil scale, injection pressure is in 1.5～2 kilograms per centimeter
2Washing agent, reach in the standby flood whole spaces after, after being disposed to the standard pasta,, add the rotating speed and the moment of torsion in man-hour before the maintenance with the compressed air-driven motor, keep injection, discharging to be equal to flow and to clean, after 1～2 minute, in engine revolution, again pressurized air is blown, inhales from the oil filler of motor, the induction tunnel that the purge cock hole of motor is connect, discharge washing agent, make its less residue in 50 grams;
3. carry out brunishing-in: reduce the outer 6-10% that moment of torsion is an engine design amount high pulling torque that applies, 60-80 ℃ the standard machine oil of being heated to by oil filler place injection engine, reach the standard pasta, and increase compressed-air actuated delivery volume, make engine speed≤1000 rev/min, the seating time is 10-15 second; Uninterruptedly inject, discharge and collect the lubricant oil of injection in the running-in, inhale, blow off the Residual oil in the engine sump tank with pressurized air at last, make it be less than 50 grams.
2, method of on the motorcycle engine general assembly line, motor being carried out quick ultraprecise reprocessing according to claim 1, it is characterized in that: main distributing valve is a unidirectional three-way valve, is made of inlet hole 8, epicoele (9), valve (10), right hole (11), left hole (12), cavity of resorption (13), valve rod (14), housing (15), cam (16); Wherein compressed air inlet (8) is positioned at the top of main distributing valve, right hole (11), left hole (12) are positioned at the middle part of valve body, valve (10) is withstood on downwards on the valve seat by Returnning spring, and the below of valve rod (14) has the cam (16) on the conical surface that is installed in engine crankshaft.
3, method of motor being carried out quick ultraprecise reprocessing on the motorcycle engine general assembly line according to claim 1 is characterized in that: the valve body that secondary distributing valve is made of upper, middle and lower core pipe, inlet hole (17), valve (18), upper valve core (20), following core pipe (22) and lower end screw rod (23) thereof constitute; Wherein upper valve core (20) is positioned at valve pocket, its top has inlet hole (19), the valve (18) that is connected with the upper valve core top upwards withstands on suction port (17) by Returnning spring and locates, has by-pass hole (21) on the following core pipe (22), its lower end is screw rod (23), it is contained in cylinder covers in the screw of original dress spark plug.
4, method of on the motorcycle engine general assembly line, motor being carried out quick ultraprecise reprocessing according to claim 1.It is characterized in that: the multi-edge type working fluid is when preparation, and its basic recipe is: in the major ingredient, and synthetic diamond 5-8%, corundum 15-20%, silicon carbide 8-10%.Chromium oxide 15-16%.In the auxiliary material, molybdenum disulfide 0.8-1%, oleic acid 14-15%, stearic acid 14-15%, hog grease 6-7%, beeswax 2.5-3%, laurylene base butadiene 0.18-0.2%, surplus is a spindle oil; The above-mentioned main materials and auxiliary materials for preparing is called basestocks, carrying out ultraprecise when reprocessing, adds spindle oil in basestocks, makes basestocks account for the ratio of 7-8%, forms the working fluid of fluidised form.
5, method of on the motorcycle engine general assembly line, motor being carried out quick ultraprecise reprocessing according to claim 1, it is characterized in that: the prescription of described washing agent is: stearic acid 18-20%, hog grease 7-8%, beeswax 4.5-5%, oleic acid 14-15%, surplus are spindle oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107224 CN1268836C (en) | 2001-02-28 | 2001-02-28 | Quick ultraprecision reworking process of motorcycle engine on assembly line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107224 CN1268836C (en) | 2001-02-28 | 2001-02-28 | Quick ultraprecision reworking process of motorcycle engine on assembly line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1329208A CN1329208A (en) | 2002-01-02 |
| CN1268836C true CN1268836C (en) | 2006-08-09 |
Family
ID=4656171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01107224 Expired - Fee Related CN1268836C (en) | 2001-02-28 | 2001-02-28 | Quick ultraprecision reworking process of motorcycle engine on assembly line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1268836C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135608B (en) * | 2007-09-30 | 2010-05-26 | 重庆长安汽车股份有限公司 | Single oilchannel fuel oil engines heat test oil return feeding system and method |
-
2001
- 2001-02-28 CN CN 01107224 patent/CN1268836C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101135608B (en) * | 2007-09-30 | 2010-05-26 | 重庆长安汽车股份有限公司 | Single oilchannel fuel oil engines heat test oil return feeding system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1329208A (en) | 2002-01-02 |
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