CN106636565A - Tool and method for acquiring medium frequency quenching technological parameters of crankshaft of medium-high speed diesel engine - Google Patents
Tool and method for acquiring medium frequency quenching technological parameters of crankshaft of medium-high speed diesel engine Download PDFInfo
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- CN106636565A CN106636565A CN201611005347.0A CN201611005347A CN106636565A CN 106636565 A CN106636565 A CN 106636565A CN 201611005347 A CN201611005347 A CN 201611005347A CN 106636565 A CN106636565 A CN 106636565A
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- connecting rod
- rod neck
- test block
- trunnion
- frock
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/30—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for crankshafts; for camshafts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention relates to a tool and a method for acquiring medium frequency quenching technological parameters of a crankshaft of a medium-high speed diesel engine. According to the sizes of a main journal and a rod journal and the general shape of a crank arm before crankshaft medium frequency quenching, a main journal technological test block and a rod journal technological test block in the same size and same material as the crankshaft are manufactured, main journal tools and rod journal tools are designed, the main journal technological test block is assembled with the main journal tools and the rod journal technological test block is assembled with the rod journal tools correspondingly, then the previous objects are hoisted to a medium frequency quenching machine tool for clamping, a medium frequency quenching inductor descends to one technological test block, preliminarily studied medium frequency quenching parameters are input into an operation system, and a medium frequency quenching technological test is carried out; a strip-shaped test block is cut in the surface of the technological test block after quenching, and is ground, polished and corroded, and whether the depth of hardening zone, and the like of the technological test block meets the requirement is measured; and the medium frequency quenching technological parameters are determined finally. With the adoption of the tool and the method, rejects caused by directly carrying out the medium frequency quenching technological test on the crankshaft are avoided, and a manufacturing cycle is prevented from being affected due to the repeated quenching; the production efficiency is high and the manufacturing cost is saved.
Description
Technical field
The present invention relates to a kind of frock and method for obtaining middle high speed diesel engine crankshaft medium frequency quenching technological parameter.
Background technology
Diesel engine is the most commonly used power set of ship in the world today, key zero of the bent axle as diesel engine
Part, its combination property requirement is very high, and the middle high speed diesel engine bent axle of certain model also has very high requirement to surface treatment,
China does not introduce process for treating surface (offshore company does not provide), completely using the domestic quenching machine developed, production efficiency
It is low, and depth of hardening zone, width and shape are less desirable on the premise of case hardness satisfaction requirement is ensured.Such case
Under, it is inadvisable directly to grope mid frequency induction hardening parameter on middle high speed diesel engine bent axle, by using the process test method, first exists
Each mid frequency induction hardening parameter is found out in technique test block and is solidified, then applied on middle high speed diesel engine bent axle, can avoid directly existing
Medium frequency induction hardening process test is carried out on bent axle, causes the possibility for affecting crankshaft quality even to cause bent axle to scrap, and because repeatedly
Quench and affect the manufacturing cycle, so as to improve production efficiency, save manufacturing cost.
The content of the invention
The purpose of the present invention is to be directed to above-mentioned present situation, there is provided one kind can reduce middle high speed diesel engine bent axle because directly carrying out
Medium frequency induction hardening process is tested and causes the possibility scrapped, and can be accelerated manufacturing cycle, improve production efficiency, be saved manufacturing cost
Obtain the frock and method of middle high speed diesel engine crankshaft medium frequency quenching technological parameter.
The implementation method of the object of the invention is to obtain the frock of middle high speed diesel engine crankshaft medium frequency quenching technological parameter, root
According to the structure of the trunnion before crankshaft medium frequency quenching, the specification of connecting rod neck, the substantially profile cranked arm and inductor, design
There are the left and right frock of trunnion, the left and right frock of connecting rod neck；
The folder position one of the left frock of the trunnion and connection flange one are connected as a single entity, and connection flange one has four screw holes
One, there is draw-in groove one outer face；The coupling spindle of the right frock of the trunnion terminates one by one connection flange two, a termination frame position one, connection
Acting flange two has four screw holes two, and there is draw-in groove two outer face；
The folder position two of the left frock of the connecting rod neck and connection are cranked arm and one are connected as a single entity, and connection is cranked arm and one has four screw holes
Three, there is draw-in groove three outer face；The termination connection of coupling spindle 21 of the right frock of the connecting rod neck cranks arm two, a termination frame position two, connection
Connect to crank arm and two there are four screw holes four, there is draw-in groove four outer face.
The method for obtaining middle high speed diesel engine crankshaft medium frequency quenching technological parameter, comprises the following steps that：
1) prepare with the middle high speed diesel engine main bearing journal and connecting rod neck same material of required mid frequency induction hardening, equally prepare work
Skill and parameter, the qualified trunnion technique test block of same specification and connecting rod neck technique test block；Prepare the left and right frock of trunnion, connecting rod
The left and right frock of neck；
There are embedded corresponding trunnion or company in the both sides of trunnion technique test block or connecting rod neck technique test block
Boss in bar neck frock draw-in groove；Trunnion or connecting rod neck technique test block have and trunnion or the left and right frock screw of connecting rod neck
The screw hole of connection；
2) trunnion or connecting rod neck mid frequency induction hardening inductor are installed；
3) test block of trunnion technique or the test block of connecting rod neck technique and its corresponding mid frequency induction hardening frock are selected, technique is tried
The boss on block both sides is embedded in the draw-in groove of corresponding left and right frock, and respectively will be main with four screws at frock two ends
Axle journal or the test block of connecting rod neck technique are fixed with trunnion or connecting rod neck frock so as to closely connection；
4) after the completion of assembling, by step 3) technique test block and correspond frock and be hung on intermediate-frequency quenching machine tool and carry out
The folder position of clamping, trunnion or the left frock of connecting rod neck is clamped by intermediate-frequency quenching machine tool, the frame of trunnion or the right frock of connecting rod neck
Position is held using fixed bearing, and adjusts the levelness of the test block of trunnion technique or connecting rod neck technique test block；
5) mid frequency induction hardening inductor is dropped in the test block of trunnion technique or connecting rod neck technique test block, and adjusts intermediate frequency
Quenching inducer position, makes mid frequency induction hardening inductor be located at the centre of trunnion or connecting rod neck technique test block length direction；Intermediate frequency
Quenching inducer both sides backplate is separated it with left and right frock by the locating piece on both sides on inductor；Preliminary operation quenching machine, adjusts
Whole trunnion or the left and right frock of connecting rod neck and trunnion or the levelness of connecting rod neck technique test block, mid frequency induction hardening when preliminary operation
Inductor is not rocked, and is not wiped till touching；
6) start-up operation platform, starts quenching pump, after abundant circulating quenching liquid, surveys quenching liquid concentration；
7) by the mid frequency induction hardening parameter that Primary Study is good, including when electric capacity, frequency, input power, heat time, spray
Between, lathe rotary speed parameter, in the system of input operation platform, after performing the preparation before all quenchings, start trunnion or
The medium frequency induction hardening process test of connecting rod neck technique test block；
8) Jing step 7) after quenching, trunnion or connecting rod neck frock and trunnion or connecting rod neck technique test block are hung down, tear open
Trunnion or connecting rod neck technique test block are unloaded, in trunnion or the cross section of connecting rod neck technique test block surface wire cutting along its length
For the strip test block of 20mm × 20mm；
9) polishing, polishing, corrosion step 8) strip test block, after quench-hardened case is displayed, measurement depth of hardening zone, width
Whether degree and observation quench-hardened case shape meet the quench-hardened case requirement of the model main bearing journal or connecting rod neck；
10) the quench-hardened case requirement of the model main bearing journal or connecting rod neck is such as unsatisfactory for, according to result of the test, optimization quenching
Parameter, takes new trunnion or connecting rod neck technique test block repeat step 7) mid frequency induction hardening operation, until result of the test meets will
Till asking；Take new trunnion or the test block of connecting rod neck technique again carries out mid frequency induction hardening test according to final qualified parameters of quenching, with
Cure parameter；
11) repeat step 2) -- 10), carry out the mid frequency induction hardening test of the test block of connecting rod neck technique or trunnion technique test block.
The present invention using with its model bent axle phase same material and same process flow manufacture by obtaining the enough and type
Qualified trunnion or the connecting rod neck technique test block of number main bearing journal or connecting rod neck same size, by the good trunnion of mounting and adjusting
Or connecting rod neck technique test block trunnion corresponding thereto or connecting rod neck frock and the mid frequency induction hardening sensing that matches with it
Device, surveys quenching liquid concentration, is input into each mid frequency induction hardening parameter, carries out medium frequency induction hardening process test, and constantly optimizes parameters of quenching,
Engineer testing is repeated, the mid frequency induction hardening parameter of optimum is finally given, and the optimized parameter is applied into the model high speed
In crankshaft of diesel engine mid frequency induction hardening.
The present invention can avoid directly medium frequency induction hardening process test being carried out on bent axle, cause to affect crankshaft quality or even cause
The possibility that bent axle is scrapped, and the manufacturing cycle is affected because of Repeat quenching, so as to improve production efficiency, save manufacturing cost.
Description of the drawings
Fig. 1 is trunnion technique of the present invention test block and trunnion frock assembly state diagram；
Fig. 2 is connecting rod neck technique of the present invention test block and connecting rod neck frock assembly state diagram；
Fig. 3, Fig. 4 are with trunnion technique test block matches the left tool structure front view of trunnion, left view；
Fig. 5, Fig. 6 are with trunnion technique test block matches the right tool structure front view of trunnion, left view；
Fig. 7, Fig. 8 are with connecting rod neck technique test block matches the left tool structure front view of connecting rod neck, left view；
Fig. 9, Figure 10 are with connecting rod neck technique test block matches the right tool structure front view of connecting rod neck, left view；
Figure 11, Figure 12 are trunnion technique test block structural front view, left view；
Figure 13, Figure 14 are connecting rod neck technique test block structural front view, left view.
Specific embodiment
The present invention is described in detail in detail with reference to the accompanying drawings.
The frock of the present invention has the left and right frock of trunnion, the left and right frock of connecting rod neck.
With reference to Fig. 1,3,4, the folder position 1 of the left frock 1 of trunnion and connection flange 1 are connected as a single entity, and couple flange one
12 have four screw holes 1, and there is draw-in groove 1 outer face.With reference to Fig. 1,5,6, one end of coupling spindle 1 of the right frock 3 of trunnion
Connection flange 2 16 is connect, a termination frame position 1, connection flange 2 16 there are four screw holes 2 17, and there is draw-in groove 2 15 outer face.
With reference to Fig. 2,7,8, the folder position 2 20 of the left frock 6 of connecting rod neck and connection are cranked arm and one 21 are connected as a single entity, and connection cranks arm one
21 have four screw holes 3 22, and there is draw-in groove 3 23 outer face.With reference to Fig. 2,9,10, the coupling spindle 2 27 1 of the right frock 8 of connecting rod neck
Termination connection cranks arm 2 26, a termination frame position 2 28, and connection is cranked arm and 2 26 has four screw holes 4 25, and there is draw-in groove four outer face
24。
The inventive method is concretely comprised the following steps：
1) prepare with the middle high speed diesel engine main bearing journal and connecting rod neck same material of required mid frequency induction hardening, equally prepare work
Skill and parameter, the qualified trunnion technique test block of same specification and connecting rod neck technique test block.Prepare the left and right frock of trunnion, connecting rod
The left and right frock of neck.
There are embedded corresponding trunnion or company in the both sides of trunnion technique test block or connecting rod neck technique test block
Boss in bar neck frock draw-in groove.Trunnion or connecting rod neck technique test block have and trunnion or the left and right frock screw of connecting rod neck
The screw hole of connection.
The middle high speed diesel engine main bearing journal diameter d1 be 150～350mm, connecting rod neck diameter d2 be 100～
290mm。
The diameter D and middle high speed diesel engine crank spindle of the left and right connection flange one, two of the left and right frock of the trunnion
The relation of neck diameter d1 is：D-d1≥60mm.
The center of draw-in groove three, four of the left and right frock of the connecting rod neck and vertical range L1 of two hypotenuses and connecting rod neck external diameter
The relation of d2 is：L1-d2/2 >=30mm, the center of draw-in groove three, four of the left and right frock of connecting rod neck and vertical range L2 on base and
The relation of connecting rod neck diameter d2 is：L2-d2/2≥30mm.
With reference to Fig. 1,3,4,5,6,11,12, there are left boss 1, right boss 1 in the both sides of trunnion technique test block 5.Main shaft
There is screw hole 5 30 on the left side of neck technique test block 5, together with the screw hole 1 of the left frock 1 of trunnion, is closely connected by screw 1
Connect；There is screw hole 6 31 on the right, together with the screw hole 2 17 of the right frock 3 of trunnion, is closely connected by screw 24.
With reference to Fig. 2,7,8,9,10,13,14, there are left boss 2 33, right boss 2 36 in the both sides of connecting rod neck technique test block 10.Even
There is screw hole 7 34 on the left side of bar neck technique test block 10, together with the upper bolt aperture 3 22 of the left frock 6 of connecting rod neck, by screw 37
Closely connection；There is screw hole 8 35 on the right, together with the screw hole 4 25 of the right frock 8 of connecting rod neck, is closely connected by screw 49
Connect.
2) trunnion or connecting rod neck mid frequency induction hardening inductor are installed；
First carrying out trunnion engineer testing still first carries out connecting rod neck engineer testing, in no particular order, only requires technique
Test block and its frock match with the mid frequency induction hardening inductor.
3) test block of trunnion technique or the test block of connecting rod neck technique and its corresponding mid frequency induction hardening frock are selected, technique is tried
The boss on block both sides is embedded in the draw-in groove of corresponding left and right frock, and respectively will be main with four screws at frock two ends
Axle journal or the test block of connecting rod neck technique are fixed with trunnion or connecting rod neck frock so as to closely connection.
With reference to Fig. 1,3,4,11,12, the left boss 1 on the left side of trunnion technique test block 5 is embedded in into corresponding master
In the draw-in groove 1 of the left frock 1 of axle journal, and by screw 1, by the screw hole 1 of the left frock of trunnion and trunnion technique
The screw hole 5 30 of test block is connected, and tightens screw 1 so as to closely connection.
With reference to Fig. 1,5,6,11,12, the right boss 1 on the right of trunnion technique test block 5 is embedded in into corresponding master
In the draw-in groove 2 15 of the right frock 3 of axle journal, and by screw 24, by the screw hole 2 17 of the right frock of trunnion and trunnion technique
The screw hole 6 31 of test block is connected, and tightens screw 24 so as to closely connection.
It is with reference to Fig. 2,7,8,13,14, the left boss 2 33 on the left side of connecting rod neck technique test block 10 is embedded corresponding
In the draw-in groove 3 23 of the left frock 6 of connecting rod neck, and by screw 37, by the screw hole 3 22 of the left frock of connecting rod neck and connecting rod neck work
The screw hole 7 34 of skill test block is connected, and tightens screw 37 so as to closely connection.
It is with reference to Fig. 2,9,10,13,14, the right boss 2 36 on the right of connecting rod neck technique test block 10 is embedded corresponding
In the draw-in groove 4 24 of the right frock 8 of connecting rod neck, and by screw 49, by the screw hole 4 25 of the right frock of connecting rod neck and connecting rod neck work
The right screw hole 8 35 of skill test block is connected, and tightens screw 49 so as to closely connection.
4) after the completion of assembling, by step 3) technique test block and correspond frock and be hung on intermediate-frequency quenching machine tool and carry out
Clamping, the folder position 1 of the left frock 1 of trunnion or the folder position 2 20 of the left frock 6 of connecting rod neck are clamped by intermediate-frequency quenching machine tool, main
The frame position 1 of the right frock 3 of axle journal or the frame position 2 28 of the right frock 8 of connecting rod neck are held using fixed bearing, and adjust trunnion
Technique test block or the levelness of connecting rod neck technique test block.
5) mid frequency induction hardening inductor is dropped on trunnion or connecting rod neck technique test block, and adjusts mid frequency induction hardening sensing
Device position, makes mid frequency induction hardening inductor be located at the centre of trunnion or connecting rod neck technique test block length direction.Mid frequency induction hardening senses
Device both sides backplate is separated it with trunnion or the left and right frock of connecting rod neck by the locating piece on both sides on inductor, it is ensured that sensing
Device is not wiped and touched with the trunnion on both sides or the left and right frock of connecting rod neck.Whether preliminary operation quenching machine, observation mid frequency induction hardening inductor shakes
It is dynamic, such as rock, continue to adjust trunnion or the left and right frock of connecting rod neck and trunnion or the levelness of connecting rod neck technique test block, directly
Do not rock to mid frequency induction hardening inductor during preliminary operation, do not wipe till touching.
6) start-up operation platform, starts quenching pump, after abundant circulating quenching liquid, surveys quenching liquid concentration.
7) by the mid frequency induction hardening parameter that Primary Study is good, including when electric capacity, frequency, input power, heat time, spray
Between, the parameter such as lathe rotating speed, in the system of input operation platform, after performing the preparation before all quenchings, start trunnion
Or the medium frequency induction hardening process test of connecting rod neck technique test block.
Case hardness requires to be HRC 40～60 after middle high speed diesel engine main bearing journal and connecting rod neck mid frequency induction hardening；In
Frequency parameters of quenching is required：Input power is 150～350KW, and the heat time is≤150s.
8) Jing step 7) after quenching, trunnion or connecting rod neck frock and trunnion or connecting rod neck technique test block are hung down, tear open
Technique test block is unloaded, in the strip test block that the cross section of technique test block surface wire cutting along its length is 20mm × 20mm.
9) polishing, polishing, corrosion step 8) strip test block, after quench-hardened case is displayed, measurement depth of hardening zone, width
Whether degree and observation quench-hardened case shape meet the quench-hardened case requirement of the model main bearing journal or connecting rod neck.
10) the quench-hardened case requirement of the model main bearing journal or connecting rod neck is such as unsatisfactory for, according to result of the test, optimization quenching
Parameter, takes new trunnion or connecting rod neck technique test block repeat step 7) mid frequency induction hardening operation, until result of the test meets will
Till asking；Take new trunnion or the test block of connecting rod neck technique again carries out mid frequency induction hardening test according to final qualified parameters of quenching, with
Cure parameter.
11) repeat step 2) -- 10), carry out the mid frequency induction hardening test of the test block of connecting rod neck technique or trunnion technique test block.
The present invention gropes to be met model song by the mid frequency induction hardening repeatedly on trunnion or connecting rod neck technique test block
Quench-hardened case width, depth and shape result that axle is required, and after the mid frequency induction hardening parameter for obtaining the result of the test is solidified, use
To on the trunnion or connecting rod neck medium frequency induction hardening process of the bent axle.
Centering High Speed Diesel Engine Crankshaft medium frequency induction hardening process test of the present invention has versatility.
Claims (6)
1. the frock of middle high speed diesel engine crankshaft medium frequency quenching technological parameter is obtained, it is characterised in that：According to crankshaft medium frequency quenching
The structure of front trunnion, the specification of connecting rod neck, the substantially profile cranked arm and inductor, is designed with trunnion left and right
Frock, the left and right frock of connecting rod neck；
The folder position one of the left frock of the trunnion and connection flange one are connected as a single entity, and connection flange one has four screw holes one, outward
End face has draw-in groove one；The coupling spindle of the right frock of the trunnion terminates one by one connection flange two, and a termination frame position one couples flange
Two have four screw holes two, and there is draw-in groove two outer face；
The folder position two of the left frock of the connecting rod neck and connection are cranked arm and one are connected as a single entity, and connection is cranked arm and one has four screw holes three, outward
End face has draw-in groove three；The termination connection of coupling spindle 21 of the right frock of the connecting rod neck cranks arm two, a termination frame position two, and connection is cranked arm
Two have four screw holes four, and there is draw-in groove four outer face.
2. the frock for obtaining middle high speed diesel engine crankshaft medium frequency quenching technological parameter according to claim 1, its feature exists
In：The diameter D's and middle high speed diesel engine main bearing journal diameter d1 of the left and right connection flange one, two of the left and right frock of trunnion
Relation is：D-d1≥60mm.
3. the frock for obtaining middle high speed diesel engine crankshaft medium frequency quenching technological parameter according to claim 1, its feature exists
In：The center of draw-in groove three, four of the left and right frock of connecting rod neck and vertical range L1 of two hypotenuses and the relation of connecting rod neck outside diameter d 2
For：L1-d2/2 >=30mm, the center of the draw-in groove three, four of the left and right frock of connecting rod neck and vertical range L2 and connecting rod neck on base it is straight
The relation of footpath d2 is：L2-d2/2≥30mm.
4. the method for obtaining middle high speed diesel engine crankshaft medium frequency quenching technological parameter, it is characterised in that：Concretely comprise the following steps：
1) prepare with the middle high speed diesel engine main bearing journal and connecting rod neck same material of required mid frequency induction hardening, same preparation technology and
Parameter, the qualified trunnion technique test block of same specification and connecting rod neck technique test block；Prepare the left and right frock of trunnion, connecting rod neck is left,
Right frock；
There are embedded corresponding trunnion or connecting rod neck in the both sides of trunnion technique test block or connecting rod neck technique test block
Boss in frock draw-in groove；Trunnion or connecting rod neck technique test block have and trunnion or the left and right frock mode connects for screw of connecting rod neck
Screw hole；
2) trunnion or connecting rod neck mid frequency induction hardening inductor are installed；
3) test block of trunnion technique or the test block of connecting rod neck technique and its corresponding mid frequency induction hardening frock are selected, by technique test block two
The boss on side is embedded in the draw-in groove of corresponding left and right frock, and at frock two ends respectively with four screws by trunnion
Or the test block of connecting rod neck technique is fixed with trunnion or connecting rod neck frock so as to closely connection；
4) after the completion of assembling, by step 3) technique test block and correspond frock and be hung to the enterprising luggage of intermediate-frequency quenching machine tool
The folder position of folder, trunnion or the left frock of connecting rod neck is clamped by intermediate-frequency quenching machine tool, the frame position of trunnion or the right frock of connecting rod neck
Held using fixed bearing, and adjust the levelness of the test block of trunnion technique or connecting rod neck technique test block；
5) mid frequency induction hardening inductor is dropped in the test block of trunnion technique or connecting rod neck technique test block, and adjusts mid frequency induction hardening
Sensor location, makes mid frequency induction hardening inductor be located at the centre of trunnion or connecting rod neck technique test block length direction, mid frequency induction hardening
Inductor both sides backplate is separated it with left and right frock by the locating piece on both sides on inductor；Preliminary operation quenching machine, adjustment master
Axle journal or the left and right frock of connecting rod neck and trunnion or the levelness of connecting rod neck technique test block, mid frequency induction hardening sensing when preliminary operation
Device is not rocked, and is not wiped till touching；
6) start-up operation platform, starts quenching pump, after abundant circulating quenching liquid, surveys quenching liquid concentration；
7) by the mid frequency induction hardening parameter that Primary Study is good, including electric capacity, frequency, input power, heat time, spray time, machine
Bed rotary speed parameter, in the system of input operation platform, after performing the preparation before all quenchings, starts trunnion or connecting rod neck
The medium frequency induction hardening process test of technique test block；
8) Jing step 7) after quenching, trunnion or connecting rod neck frock and trunnion or connecting rod neck technique test block are hung down, dismounting master
Axle journal or connecting rod neck technique test block, be in trunnion or the cross section of connecting rod neck technique test block surface wire cutting along its length
The strip test block of 20mm × 20mm；
9) polishing, polishing, corrosion step 8) strip test block, after quench-hardened case is displayed, measurement depth of hardening zone, width with
And whether observation quench-hardened case shape meets the quench-hardened case requirement of the model main bearing journal or connecting rod neck；
10) the quench-hardened case requirement of the model main bearing journal or connecting rod neck is such as unsatisfactory for, according to result of the test, optimization quenching ginseng
Number, takes new trunnion or connecting rod neck technique test block repeat step 7) mid frequency induction hardening operation, require until result of the test meets
Till；Take new trunnion or the test block of connecting rod neck technique again carries out mid frequency induction hardening test according to final qualified parameters of quenching, with solid
Change parameter；
11) repeat step 2) -- 10), carry out the mid frequency induction hardening test of the test block of connecting rod neck technique or trunnion technique test block.
5. the method for obtaining middle high speed diesel engine crankshaft medium frequency quenching technological parameter according to claim 4, its feature exists
In：Step 1) described in middle high speed diesel engine main bearing journal diameter d1 be 150～350mm, connecting rod neck diameter d2 be 100～
290mm。
6. the method for obtaining middle high speed diesel engine crankshaft medium frequency quenching technological parameter according to claim 4, its feature exists
In：Step 7) middle high speed diesel engine main bearing journal and connecting rod neck mid frequency induction hardening after case hardness require be HRC 40～
60；Mid frequency induction hardening parameter request：Input power is 150～350KW, and the heat time is≤150s.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005347.0A CN106636565A (en) | 2016-11-15 | 2016-11-15 | Tool and method for acquiring medium frequency quenching technological parameters of crankshaft of medium-high speed diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611005347.0A CN106636565A (en) | 2016-11-15 | 2016-11-15 | Tool and method for acquiring medium frequency quenching technological parameters of crankshaft of medium-high speed diesel engine |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201510974U (en) * | 2009-12-25 | 2010-06-23 | 张敬强 | Special clamp for spraying and repairing abrasion of shaft neck of crankshaft connecting rod |
| CN101905425A (en) * | 2010-08-03 | 2010-12-08 | 浙江德尔威工程机械设备有限公司 | Clamp special for eccentric crankshaft and method for using same |
| CN102101238A (en) * | 2010-12-18 | 2011-06-22 | 锐展(铜陵)科技有限公司 | Crankshaft sprocket assembly tool |
| CN102152098A (en) * | 2011-05-13 | 2011-08-17 | 力帆实业(集团)股份有限公司 | Crankcase bearing pressing tool |
| CN202610264U (en) * | 2012-04-16 | 2012-12-19 | 安徽日隆机械制造有限公司 | Crankshaft quenching clamp |
| CN202786355U (en) * | 2012-08-14 | 2013-03-13 | 广西玉柴机器股份有限公司 | Tool for induction hardening of crankshaft |
| CN204529921U (en) * | 2015-03-26 | 2015-08-05 | 重庆泽齐传动机械有限公司 | A kind of crankshaft quench lathe |
| CN104831019A (en) * | 2015-05-13 | 2015-08-12 | 广西梧州运龙港船机械制造有限公司 | Surface hardening equipment of marine crankshaft |
| CN104831018A (en) * | 2015-05-13 | 2015-08-12 | 广西梧州运龙港船机械制造有限公司 | Surface hardening process of marine crankshaft |
| CN206188842U (en) * | 2016-11-15 | 2017-05-24 | 武汉重工铸锻有限责任公司 | High speed diesel bent axle mid frequency quenching technological parameter's frock in acquireing |
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- 2016-11-15 CN CN201611005347.0A patent/CN106636565A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201510974U (en) * | 2009-12-25 | 2010-06-23 | 张敬强 | Special clamp for spraying and repairing abrasion of shaft neck of crankshaft connecting rod |
| CN101905425A (en) * | 2010-08-03 | 2010-12-08 | 浙江德尔威工程机械设备有限公司 | Clamp special for eccentric crankshaft and method for using same |
| CN102101238A (en) * | 2010-12-18 | 2011-06-22 | 锐展(铜陵)科技有限公司 | Crankshaft sprocket assembly tool |
| CN102152098A (en) * | 2011-05-13 | 2011-08-17 | 力帆实业(集团)股份有限公司 | Crankcase bearing pressing tool |
| CN202610264U (en) * | 2012-04-16 | 2012-12-19 | 安徽日隆机械制造有限公司 | Crankshaft quenching clamp |
| CN202786355U (en) * | 2012-08-14 | 2013-03-13 | 广西玉柴机器股份有限公司 | Tool for induction hardening of crankshaft |
| CN204529921U (en) * | 2015-03-26 | 2015-08-05 | 重庆泽齐传动机械有限公司 | A kind of crankshaft quench lathe |
| CN104831019A (en) * | 2015-05-13 | 2015-08-12 | 广西梧州运龙港船机械制造有限公司 | Surface hardening equipment of marine crankshaft |
| CN104831018A (en) * | 2015-05-13 | 2015-08-12 | 广西梧州运龙港船机械制造有限公司 | Surface hardening process of marine crankshaft |
| CN206188842U (en) * | 2016-11-15 | 2017-05-24 | 武汉重工铸锻有限责任公司 | High speed diesel bent axle mid frequency quenching technological parameter's frock in acquireing |
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Application publication date: 20170510 |