CN103148768A - Detecting tool of timing angle of crankshaft assembly of engine and detecting method thereof - Google Patents
Detecting tool of timing angle of crankshaft assembly of engine and detecting method thereof Download PDFInfo
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- CN103148768A CN103148768A CN2013100651949A CN201310065194A CN103148768A CN 103148768 A CN103148768 A CN 103148768A CN 2013100651949 A CN2013100651949 A CN 2013100651949A CN 201310065194 A CN201310065194 A CN 201310065194A CN 103148768 A CN103148768 A CN 103148768A
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Abstract
In order to solve the problem of difficult detection of the timing angle of a crankshaft assembly after the crankshaft assembly of an engine in the prior art is assembled completely, the invention provides a detecting tool of the timing angle of the crankshaft assembly of the engine and a detecting method thereof. The detecting tool comprises a bottom plate, a V-shaped support, a connecting rod support, a dial indicator, a detecting rod, a stabilizing mechanism and a standard sample. The detecting method adopts the standard sample to calibrate the maximum interval between the axis of a small-head hole of a connecting rod and the axis of a rod part of a crankshaft when a timing tooth is at the vertical position and does not need complex reading or calculation. The detecting tool of the timing angle of the crankshaft assembly of the engine and the detecting method thereof have the beneficial and technical effects that the timing angle of the crankshaft assembly can be directly detected after the assembly is completed, have the characteristics of convenience in operation, accurate result and good repeatability, and is low in cost and suitable for being popularized.
Description
Technical field
The present invention relates to a kind of engine crankshaft assembly timing angle detection technique, specially refer to a kind of engine crankshaft assembly timing angle check tool and detection method thereof.
Background technology
The function of motorcycle engine crankshaft assembly is that the straight reciprocating motion with piston changes the gyration output torque into, to drive the control gears such as the external equipment that connects with it and valve actuating mechanism, ignition mechanism, speed adjusting gear.
Usually, motorcycle engine crankshaft assembly (being designated hereinafter simply as crank assemblby) comprises left crank, right crank, crank pin, needle bearing, connecting rod, left bearing, right bearing and time gear (perhaps sprocket wheel), left crank and right crank connect into bent axle by the mode that interference fit and employing with crank pin press-fit, connecting rod is fitted on crank pin by needle bearing, left bearing, right bearing and time gear are also to be fixedly mounted on toggle-action lever section by the mode that press-fits, and consist of thus crank assemblby.In the assembling process of crank assemblby, usually first bearing, time gear are fitted in left and right toggle-action lever section, more left and right crank are fitted in respectively on the crank pin that has been pressed with needle bearing and connecting rod, need through multiple bearing and press-fit.The time gear that are fitted in toggle-action lever section are used for the phase relation between the camshaft of control engine piston and the valve of lighting a fire, control inlet and exhaust valve in specific time opening and closing, namely control inlet and exhaust valve opening and closing when engine piston moves to ad-hoc location, i.e. so-called valve timing.Usually, when engine piston was moved to ad-hoc location, the special angle that the time gear timing gear rotates to was called the timing angle of crank assemblby.Time gear adopt the relative angle of timing gear and keyway to determine the position relationship of timing gear and crank assemblby, and then the position relationship of the engine piston of definite timing gear and connecting rod drive.Although all adopt mould accurately to locate in locating and press-fiting process at every turn, cumulative errors still probably cause each element size of crank assemblby and the position overproof.After assembling is completed, need to detect the crank assemblby timing angle, yet after the crank assemblby assembling was completed, the crank assemblby timing angle became spatial relation, was difficult to it is detected.Obviously, prior art engine crankshaft assembly exists the problem that the crank assemblby timing angle is difficult to detect after assembling is completed.
Summary of the invention
The problem that is difficult to detect for overcome crank assemblby timing angle that prior art engine crankshaft assembly exists after assembling is completed, the present invention proposes a kind of engine crankshaft assembly timing angle check tool and detection method thereof.Engine crankshaft assembly timing angle check tool of the present invention, comprise base plate, V-arrangement support, link supports, clock gauge, test bar, stabilizing mechanism and master body, the top of two V-arrangement supports is provided with V-shaped groove, and on parallel being fixed on base plate, its spacing and crank assemblby, the spacing of two bearings in left and right is identical; The top of link supports is provided with rectangular recess and is fixed on the base plate in V-arrangement support dead ahead, and the width of its groove is wide than connecting rod thickness; Clock gauge is fixed on a side in link supports the place ahead, and after its probe height is sleeved on connecting rod small end hole with test bar and places it on link supports, the centre-height in microcephaly hole is identical; The diameter of test bar and the diameter of connecting rod small end hole are complementary; Stabilizing mechanism is arranged on the base plate of V-arrangement support one side, comprises column and pressing plate, two root post parallel arranged, and pressing plate is sleeved on column, and bottom surface, pressing plate center is provided with the profile of tooth step; The model of the timing gear that master body is determined during for detected crank assemblby design small end of connecting rod axially bored line and toggle-action lever section axis maximum spacing when vertical position, its front end is the diameter front test column identical with test bar with length, the rear end be diameter and length respectively with the bearing outside diameter of crank assemblby and two bearings between the identical rear test column of distance, the radial rigidity of forward and backward test column connects, and the spacing of forward and backward test column axis is the maximum spacing of the desired timing gear of design small end of connecting rod axially bored line and toggle-action lever section axis when vertical position.
Further, the master body of engine crankshaft assembly timing angle check tool of the present invention is more than one or one.
Engine crankshaft assembly timing angle detection method of the present invention, adopt engine crankshaft assembly timing angle check tool of the present invention that assembling is completed after the crank assemblby timing angle detect, comprise the following steps:
S1: test bar is sleeved in the connecting rod small end hole of the crank assemblby after assembling is completed, because the diameter of test bar and the diameter of connecting rod small end hole are complementary, can not produce after test bar is sleeved in connecting rod small end hole and rock or shake, note, the both sides in hole reserve identical length;
S2: the V-arrangement that master body is placed on cubing supports, attention is placed in V-shaped groove the rear test column of master body and the both sides alignment, due to two V-arrangement supports parallel be fixed on base plate and spacing and bent axle on the spacing of two bearings identical, namely identical with rear test column length, master body can not produce and rock or shake;
S3: the front test column of master body is placed in the groove on link supports top, and front test column two ends just are placed on the platform of groove both sides, and at this moment, the clock gauge that is fixed on link supports the place ahead one side just in time can measure the cylindrical of front test column; Because clock gauge probe height is identical with the centre-height of test bar in being sleeved on the microcephaly hole, at this moment, the ultimate range that moves forward for connecting rod small end hole that clock gauge measures namely designs the maximum spacing of desired timing gear small end of connecting rod axially bored line and toggle-action lever section axis when vertical position; Adjust clock gauge and write down indicated value;
S4: take off master body, lift the pressing plate of stabilizing mechanism, the V-arrangement that crank assemblby after assembling is completed is placed on cubing supports, attention is placed on the bearing on the crank curved bar in V-shaped groove and the both sides alignment, this moment, the pressing plate of stabilizing mechanism was pressed on the curved bar of crank one end, and when guaranteeing turning crankshaft, crank assemblby can not produce and rock or shake; Simultaneously, the profile of tooth step that bottom surface, pressing plate center arranges just in time is stuck in timing gear, guarantees that timing gear is at vertical position;
S5: the connecting rod that will be set with test bar is placed in the groove on link supports top, and the test bar at two ends just is placed on the platform of groove both sides; At this moment, the clock gauge that is fixed on link supports the place ahead one side just in time can measure the cylindrical of test bar, the indicated value of timing gear maximum spacing of small end of connecting rod axially bored line and toggle-action lever section axis when vertical position namely detected;
The clock gauge indicated value that S6: comparison step S3 and S5 detect, the skew of the larger explanation crank assemblby of difference timing angle is larger, calculates and sets difference range by theory and can detect certified products or unacceptable product.
The useful technique effect of engine crankshaft assembly timing angle check tool of the present invention and detection method thereof is that after can directly completing assembling, the crank assemblby timing angle detects, has easy to operate, result accurately and the characteristics of good reproducibility, and, cheap, suitable popularization.
Description of drawings
Accompanying drawing 1 is parts and structural representation before the motorcycle engine crankshaft general assembly;
Accompanying drawing 2 for the motorcycle engine crankshaft general assembly complete after parts and structural representation;
Accompanying drawing 3 is the structural representation of engine crankshaft assembly timing angle check tool of the present invention;
Accompanying drawing 4 is the structural representation of engine crankshaft assembly timing angle check tool master body of the present invention;
The schematic diagram of accompanying drawing 5 for adopting engine crankshaft assembly timing angle check tool of the present invention that master body is detected;
The schematic diagram of accompanying drawing 6 for adopting engine crankshaft assembly timing angle check tool of the present invention that the crank assemblby timing angle is detected.
Below in conjunction with drawings and the specific embodiments, engine crankshaft assembly timing angle check tool of the present invention and detection method thereof are described further.
Embodiment
Accompanying drawing 3 is the structural representation of engine crankshaft assembly timing angle check tool of the present invention, accompanying drawing 4 is the structural representation of engine crankshaft assembly timing angle check tool master body of the present invention, in figure, 8 is base plate, and 9 for V-arrangement supports, and 10 is link supports, 11 is clock gauge, 12 is test bar, and 13 is column, and 14 is pressing plate.As seen from the figure, engine crankshaft assembly timing angle check tool of the present invention, comprise base plate 8, V-arrangement support 9, link supports 10, clock gauge 11, test bar 12, stabilizing mechanism and master body, the top of two V-arrangement supports 9 is provided with V-shaped groove, and on parallel being fixed on base plate 8, its spacing and crank assemblby, the spacing of two bearings in left and right is identical; The top of link supports 10 is provided with rectangular recess and is fixed on the base plate 8 in V-arrangement support 9 dead aheads, and the width of its groove is wide than connecting rod thickness; Clock gauge 11 is fixed on a side in link supports 10 the place aheads, and after its probe height is sleeved on connecting rod small end hole with test bar 12 and places it on link supports, the centre-height in microcephaly hole is identical; The diameter of test bar 12 and the diameter of connecting rod small end hole are complementary; Stabilizing mechanism is arranged on the base plate 8 of V-arrangement support 9 one sides, comprises column 13 and pressing plate 14, two root post 13 parallel arranged, and pressing plate 14 is sleeved on column 13, and bottom surface, pressing plate center is provided with profile of tooth step (referring to accompanying drawing 3, not showing the profile of tooth step in figure); The model of the small end of connecting rod axially bored line that master body is determined during for detected crank assemblby design and toggle-action lever section axis maximum spacing, its front end is the diameter front test column identical with test bar with length, the rear end be diameter and length respectively with the bearing outside diameter of crank assemblby and two bearings between the identical rear test column of distance, the radial rigidity of forward and backward test column connects, and the spacing of forward and backward test column axis is the maximum spacing (referring to accompanying drawing 4) of the desired timing gear of design small end of connecting rod axially bored line and toggle-action lever section axis when vertical position.
The schematic diagram of accompanying drawing 5 for adopting engine crankshaft assembly timing angle check tool of the present invention that master body is detected, the schematic diagram of accompanying drawing 6 for adopting engine crankshaft assembly timing angle check tool of the present invention that the crank assemblby timing angle is detected.As seen from the figure, engine crankshaft assembly timing angle detection method of the present invention, adopt engine crankshaft assembly timing angle check tool of the present invention that assembling is completed after the crank assemblby timing angle detect, comprise the following steps:
S1: test bar is sleeved in the connecting rod small end hole of the crank assemblby after assembling is completed, because the diameter of test bar and the diameter of connecting rod small end hole are complementary, can not produce after test bar is sleeved in connecting rod small end hole and rock or shake, note, the both sides in hole reserve identical length;
S2: the V-arrangement that master body is placed on cubing supports, attention is placed in V-shaped groove the rear test column of master body and the both sides alignment, due to two V-arrangement supports parallel be fixed on base plate and spacing and bent axle on the spacing of two bearings identical, namely identical with rear test column length, master body can not produce and rock or shake (referring to accompanying drawing 5);
S3: the front test column of master body is placed in the groove on link supports top, and front test column two ends just are placed on the platform of groove both sides, and at this moment, the clock gauge that is fixed on link supports the place ahead one side just in time can measure the cylindrical of front test column; Because clock gauge probe height is identical with the centre-height of test bar in being sleeved on the microcephaly hole, at this moment, the ultimate range that moves forward for connecting rod small end hole that clock gauge measures namely designs the maximum spacing of desired timing gear small end of connecting rod axially bored line and toggle-action lever section axis when vertical position; Adjust clock gauge and write down indicated value (referring to accompanying drawing 5);
S4: take off master body, lift the pressing plate of stabilizing mechanism, the V-arrangement that crank assemblby after assembling is completed is placed on cubing supports, attention is placed on the bearing on the crank curved bar in V-shaped groove and the both sides alignment, this moment, the pressing plate of stabilizing mechanism was pressed on the curved bar of crank one end, and when guaranteeing turning crankshaft, crank assemblby can not produce and rock or shake; Simultaneously, the profile of tooth step that bottom surface, pressing plate center arranges just in time is stuck in timing gear, guarantees that timing gear is at vertical position (referring to accompanying drawing 6)
S5: the connecting rod that will be set with test bar is placed in the groove on link supports top, and the test bar at two ends just is placed on the platform of groove both sides; At this moment, the clock gauge that is fixed on link supports the place ahead one side just in time can measure the cylindrical of test bar, the indicated value (referring to accompanying drawing 6) of timing gear maximum spacing of small end of connecting rod axially bored line and toggle-action lever section axis when vertical position namely detected;
The clock gauge indicated value that S6: comparison step S3 and S5 detect, the skew of the larger explanation crank assemblby of difference connecting rod small end hole eccentric throw is larger, calculates and sets difference range by theory and can detect certified products or unacceptable product.
Need to prove, the model of the small end of connecting rod axially bored line that master body is determined during for detected crank assemblby design and toggle-action lever section axis maximum spacing, its front end is the diameter front test column identical with test bar with length, the rear end be diameter and length respectively with the bearing outside diameter of crank assemblby and two bearings between the identical rear test column of distance, the radial rigidity of forward and backward test column connects, and the spacing of forward and backward test column axis is the maximum spacing of the desired timing gear of design small end of connecting rod axially bored line and toggle-action lever section axis when vertical position.On the other hand, after crank assemblby assembling, toggle-action lever section axis is fixed to the distance of crank pin axis, and length of connecting rod is fixed, and when timing gear during at vertical position, the maximum spacing of small end of connecting rod axially bored line and toggle-action lever section axis is also fixed.By the relation of triangle edges and angle, can be in the hope of the maximum spacing of desired timing gear of when design small end of connecting rod axially bored line and toggle-action lever section axis when the vertical position, i.e. the detection indicated value that identifies of master body.Only have the part foozle, when rigging error exceeds setting value, the actual timing gear that detects maximum spacing of small end of connecting rod axially bored line and toggle-action lever section axis when vertical position just can go beyond the scope.Therefore, after adopting master body that the clock gauge indicated value is edited, can directly determine according to the error range that detects whether detected crank assemblby timing angle is qualified.
Be not difficult to find out from above detecting step, engine crankshaft assembly timing angle check tool of the present invention and detection method thereof adopt master body that timing gear maximum spacing of small end of connecting rod axially bored line and toggle-action lever section axis when the vertical position is calibrated, do not need reading or calculating through complexity, make testing result more simple, accurate.Because the crank assemblby timing gear of the different model maximum spacing of small end of connecting rod axially bored line and toggle-action lever section axis when the vertical position is different, therefore, need the master body of preparation more than one or one, to satisfy the detection demand of different model crank assemblby.Engine crankshaft assembly timing angle check tool of the present invention and detection method do not adopt high-grade, precision and advanced testing tool, and be easy to operate, the good reproducibility of testing result.
Obviously, the useful technique effect of engine crankshaft assembly timing angle check tool of the present invention and detection method thereof is that after can completing assembling, the crank assemblby timing angle detects, and has easy to operate, result accurately and the characteristics of good reproducibility, and, cheap, suitable popularization.
Claims (3)
1. engine crankshaft assembly timing angle check tool, it is characterized in that, this cubing comprises base plate, V-arrangement support, link supports, clock gauge, test bar, stabilizing mechanism and master body, the top of two V-arrangement supports is provided with V-shaped groove, and on parallel being fixed on base plate, its spacing and crank assemblby, the spacing of two bearings in left and right is identical; The top of link supports is provided with rectangular recess and is fixed on the base plate in V-arrangement support dead ahead, and the width of its groove is wide than connecting rod thickness; Clock gauge is fixed on a side in link supports the place ahead, and after its probe height is sleeved on connecting rod small end hole with test bar and places it on link supports, the centre-height in microcephaly hole is identical; The diameter of test bar and the diameter of connecting rod small end hole are complementary; Stabilizing mechanism is arranged on the base plate of V-arrangement support one side, comprises column and pressing plate, two root post parallel arranged, and pressing plate is sleeved on column, and bottom surface, pressing plate center is provided with the profile of tooth step; The model of the timing gear that master body is determined during for detected crank assemblby design small end of connecting rod axially bored line and toggle-action lever section axis maximum spacing when vertical position, its front end is the diameter front test column identical with test bar with length, the rear end be diameter and length respectively with the bearing outside diameter of crank assemblby and two bearings between the identical rear test column of distance, the radial rigidity of forward and backward test column connects, and the spacing of forward and backward test column axis is the maximum spacing of the desired timing gear of design small end of connecting rod axially bored line and toggle-action lever section axis when vertical position.
2. engine crankshaft assembly timing angle check tool according to claim 1, is characterized in that, master body is more than one or one.
3. an engine crankshaft assembly timing angle detection method, is characterized in that, adopt engine crankshaft assembly timing angle check tool of the present invention that assembling is completed after the crank assemblby timing angle detect, comprise the following steps:
S1: test bar is sleeved in the connecting rod small end hole of the crank assemblby after assembling is completed, because the diameter of test bar and the diameter of connecting rod small end hole are complementary, can not produce after test bar is sleeved in connecting rod small end hole and rock or shake, note, the both sides in hole reserve identical length;
S2: the V-arrangement that master body is placed on cubing supports, attention is placed in V-shaped groove the rear test column of master body and the both sides alignment, due to two V-arrangement supports parallel be fixed on base plate and spacing and bent axle on the spacing of two bearings identical, namely identical with rear test column length, master body can not produce and rock or shake;
S3: the front test column of master body is placed in the groove on link supports top, and front test column two ends just are placed on the platform of groove both sides, and at this moment, the clock gauge that is fixed on link supports the place ahead one side just in time can measure the cylindrical of front test column; Because clock gauge probe height is identical with the centre-height of test bar in being sleeved on the microcephaly hole, at this moment, the ultimate range that moves forward for connecting rod small end hole that clock gauge measures namely designs the maximum spacing of desired timing gear small end of connecting rod axially bored line and toggle-action lever section axis when vertical position; Adjust clock gauge and write down indicated value;
S4: take off master body, lift the pressing plate of stabilizing mechanism, the V-arrangement that crank assemblby after assembling is completed is placed on cubing supports, attention is placed on the bearing on the crank curved bar in V-shaped groove and the both sides alignment, this moment, the pressing plate of stabilizing mechanism was pressed on the curved bar of crank one end, and when guaranteeing turning crankshaft, crank assemblby can not produce and rock or shake; Simultaneously, the profile of tooth step that bottom surface, pressing plate center arranges just in time is stuck in timing gear, guarantees that timing gear is at vertical position;
S5: the connecting rod that will be set with test bar is placed in the groove on link supports top, and the test bar at two ends just is placed on the platform of groove both sides; At this moment, the clock gauge that is fixed on link supports the place ahead one side just in time can measure the cylindrical of test bar, the indicated value of timing gear maximum spacing of small end of connecting rod axially bored line and toggle-action lever section axis when vertical position namely detected;
The clock gauge indicated value that S6: comparison step S3 and S5 detect, the skew of the larger explanation crank assemblby of difference timing angle is larger, calculates and sets difference range by theory and can detect certified products or unacceptable product.
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|---|---|---|---|
| CN2013100651949A CN103148768A (en) | 2013-03-01 | 2013-03-01 | Detecting tool of timing angle of crankshaft assembly of engine and detecting method thereof |
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| CN2013100651949A CN103148768A (en) | 2013-03-01 | 2013-03-01 | Detecting tool of timing angle of crankshaft assembly of engine and detecting method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634288A (en) * | 2013-11-06 | 2015-05-20 | 中国科学院沈阳计算技术研究所有限公司 | Compressor rotor detection device |
| CN104625722A (en) * | 2015-02-12 | 2015-05-20 | 广西玉柴机器股份有限公司 | Phase checking device for assembling timing gears |
| CN106370149A (en) * | 2016-11-16 | 2017-02-01 | 江西昌河汽车有限责任公司 | Engine correct time angle measuring device and detection method |
| CN108534718A (en) * | 2018-07-03 | 2018-09-14 | 三门峡中原量仪股份有限公司 | A kind of axis parallel degree detection device of eccentric shaft |
| CN109443753A (en) * | 2018-11-22 | 2019-03-08 | 福建永强力加动力设备有限公司 | A kind of crankshaft toothed wheel check device |
| CN110320027A (en) * | 2019-07-31 | 2019-10-11 | 江苏上汽汽车变速器有限公司 | A kind of transmission assembly shift free variation measurement cubing and its detection method |
| CN110657774A (en) * | 2019-08-27 | 2020-01-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Free angle limit value measuring clamp of plunger assembly body |
| CN112097616A (en) * | 2020-09-18 | 2020-12-18 | 青岛迈特园林机械零部件有限公司 | Engine crankshaft assembly timing angle detection tool and detection method thereof |
| CN113154999A (en) * | 2021-05-12 | 2021-07-23 | 南京南传智能技术有限公司 | Relative angle measuring device for crankshaft parts |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104634288A (en) * | 2013-11-06 | 2015-05-20 | 中国科学院沈阳计算技术研究所有限公司 | Compressor rotor detection device |
| CN104625722A (en) * | 2015-02-12 | 2015-05-20 | 广西玉柴机器股份有限公司 | Phase checking device for assembling timing gears |
| CN106370149A (en) * | 2016-11-16 | 2017-02-01 | 江西昌河汽车有限责任公司 | Engine correct time angle measuring device and detection method |
| CN108534718A (en) * | 2018-07-03 | 2018-09-14 | 三门峡中原量仪股份有限公司 | A kind of axis parallel degree detection device of eccentric shaft |
| CN108534718B (en) * | 2018-07-03 | 2023-08-29 | 三门峡中原量仪股份有限公司 | Axis parallelism detection device of eccentric shaft |
| CN109443753A (en) * | 2018-11-22 | 2019-03-08 | 福建永强力加动力设备有限公司 | A kind of crankshaft toothed wheel check device |
| CN109443753B (en) * | 2018-11-22 | 2024-03-26 | 福建永强力加动力设备有限公司 | Crankshaft gear inspection device |
| CN110320027A (en) * | 2019-07-31 | 2019-10-11 | 江苏上汽汽车变速器有限公司 | A kind of transmission assembly shift free variation measurement cubing and its detection method |
| CN110657774A (en) * | 2019-08-27 | 2020-01-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Free angle limit value measuring clamp of plunger assembly body |
| CN110657774B (en) * | 2019-08-27 | 2021-02-12 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Free angle limit value measuring clamp of plunger assembly body |
| CN112097616A (en) * | 2020-09-18 | 2020-12-18 | 青岛迈特园林机械零部件有限公司 | Engine crankshaft assembly timing angle detection tool and detection method thereof |
| CN113154999A (en) * | 2021-05-12 | 2021-07-23 | 南京南传智能技术有限公司 | Relative angle measuring device for crankshaft parts |
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