CN105203000A - Crankshaft radius inspection tool - Google Patents
Crankshaft radius inspection tool Download PDFInfo
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- CN105203000A CN105203000A CN201510670023.8A CN201510670023A CN105203000A CN 105203000 A CN105203000 A CN 105203000A CN 201510670023 A CN201510670023 A CN 201510670023A CN 105203000 A CN105203000 A CN 105203000A
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- axle
- cubing
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Abstract
The invention discloses a crankshaft radius inspection tool which comprises a measuring assembly and a standard calibration part. The measuring assembly comprises a measuring sleeve, a measuring head shaft, two V-shaped measuring jaws and a dial indicator; the interior of the measuring sleeve is provided with a guide hole, the bottom end of the measuring sleeve is provided with a fork-shaped frame, and two support legs of the fork-shaped frame can stretch across two adjacent main journals of a crankshaft to be measured; the measuring head shaft adopts a cylindrical object, one end of the measuring head shaft is provided with a necking probe, the measuring head shaft is arranged in the guide hole in a sleeved mode and vertically slides, and the probe is located between the two support legs of the fork-shaped frame; the two V-shaped measuring jaws are arranged on the two support legs of the fork-shaped frame respectively, the center lines of the two V-shaped measuring jaws and the moving axis of the measuring head shaft are located in the same plane, and the V-shaped surfaces of the two V-shaped measuring jaws are used for being closely attached to the outer walls of the two main journals respectively; the dial indicator is installed at the upper end of the measuring sleeve, and a mandrel of the dial indicator stretches into the guide hole and is connected to the other end of the measuring head shaft in an abutted mode; the standard calibration part is used for determining the zero position of the dial indicator. The crankshaft radius inspection tool is accurate in measuring result.
Description
Technical field
The present invention relates to I. C. engine crankshaft geometrical property project detection field, particularly a kind of crank throw cubing.
Background technology
In I. C. engine crankshaft manufacture field, its geometrical precision is very crucial, needs to detect bent axle geometrical property project, such as, and the detection of the crank throw radius project of bent axle.At present, the general dial gauge that adopts carries out platform measuring or specialized equipment measurement, special crank throw cubing also can be adopted to measure when batch is large.Adopt dial gauge to carry out platform measuring and be only applicable to the less demanding bent axle of radius tolerances, adopt specialized equipment measurement to require that tested bent axle must retain two ends center pit.And for conventional dedicated crank throw cubing, because numerical value transmission is not in a plane, measuring principle is not too clear and definite, add the interference effect of both sides crank throw entity, cubing volume is higher, comparatively large, during measurement, crankshaft crank can only horizontal positioned, and the weight of cubing can cause bent axle to deflect.The existence of this contradiction, measurement result precision is not accurate enough, is unfavorable for quality control.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of crank throw cubing, measurement result is accurate.
For achieving the above object, the invention provides a kind of crank throw cubing, it is used for measuring the error amount of crank throw radius of bent axle, this cubing comprises: measurement components, it comprises: measuring unit, its inside has pilot hole, and the bottom of measuring unit is provided with forked frame, and two supporting legs of this forked frame can across adjacent two king journals of bent axle to be measured; Gauge head axle, it is column, and one end of this gauge head axle has the probe of necking down, and this gauge head axle sleeve to enter in pilot hole and slides up and down, and probe is between two supporting legs of forked frame; Two V-arrangement measuring jaws, it is separately positioned on two supporting legs of forked frame, and the center line of two V-arrangement measuring jaws and the mobile axis of gauge head axle are in same plane, and the V-arrangement face of these two V-arrangement measuring jaws is used for being adjacent to respectively on the outer wall of two king journals; And dial gauge, it is arranged on the upper end of measuring unit, and the mandrel of dial gauge to stretch in pilot hole and is connected to the other end of gauge head axle; And standard calibration part, it second face of cylinder comprising two first faces of cylinder coaxially arranged and be arranged on these two the first face of cylinder middle upper parts, the consistent size of first face of cylinder and standard crankshaft adjacent main axle journal, second face of cylinder and be in the consistent size of the connecting rod neck between adjacent main axle journal, distance between the center line on center line to the second face of cylinder on first face of cylinder is the crank throw radius of standard, and standard calibration part is used for determining the zero-bit of dial gauge; During detection, two V-arrangement measuring jaws are adjacent on adjacent two king journals of bent axle to be measured, on the connecting rod neck between adjacent two king journals being connected to bent axle to be measured of popping one's head in, and the error amount being changed to the crank throw radius of bent axle to be measured of the reading of dial gauge.
Preferably, the upper end of pilot hole is also provided with tight cap, and this tight cap is the cylindrical body with boss, and the front end of tight cap inserts pilot hole and boss is connected on the edge of pilot hole, and dial gauge is arranged on the tail end of tight cap by lining.
Preferably, the sidewall of tight cap is provided with lock-screw, and the front end of lock-screw is connected to the outer wall of lining.
Preferably, be provided with holddown spring between the other end of gauge head axle and the front end of tight cap, during detection, holddown spring drives the probe of gauge head axle to be connected on the connecting rod neck of bent axle to be measured.
Preferably, the center section of gauge head axle is provided with stopper slot, and the sidewall of measuring unit is provided with stop screw with stopper slot corresponding position.
Preferably, two V-arrangement measuring jaws are fixed on the front end of supporting leg respectively by set screws.
Preferably, standard calibration part comprises the first pole piece and the second pole piece, and the two ends of the first pole piece are processed to form two first faces of cylinder, and the periphery of the second pole piece is processed to form second face of cylinder.
Preferably, standard calibration part also comprises base, and the first pole piece is fixed on base by the first set screws, and the second pole piece is fixed on the middle part of the first pole piece by the second set screws.
Compared with prior art, the present invention has following beneficial effect: this crank throw cubing by designing gauge head axle slide-and-guide hole on the measuring unit of measurement components, the centerline of the mobile axis of gauge head axle and two V-arrangement measuring jaws is in same plane, and measuring principle is clear and definite, and dispute is few.In addition, this cubing adopts saddle ride type structure, measures outside crankshaft crank, avoid the interference of crankshaft crank both sides counterbalance weight, during measurement, crankshaft crank position can be placed arbitrarily, and the weight of measuring process cubing can not cause bent axle to deflect, whole measuring process safety, convenience and high-efficiency.
Accompanying drawing explanation
Fig. 1 is the front view according to crank throw cubing of the present invention;
Fig. 2 is the left view according to crank throw cubing of the present invention;
Fig. 3 is the partial sectional view according to crank throw cubing of the present invention;
Fig. 4 is the structural representation according to V-arrangement measuring jaw in crank throw cubing of the present invention;
Fig. 5 is the structural representation according to forked frame in crank throw cubing of the present invention;
Fig. 6 is the front view according to crank throw cubing Plays check and correction part of the present invention;
Fig. 7 is the vertical view according to crank throw cubing Plays check and correction part of the present invention;
Fig. 8 is the cut-open view according to crank throw cubing Plays check and correction part of the present invention;
Fig. 9 is according to crank throw cubing using state schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole instructions and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or ingredient, and do not get rid of other element or other ingredient.
Mainly for how, the error amount of the crank throw radius of Quick Measurement bent axle judges whether to meet the requirements and designs crank throw cubing of the present invention, main measuring principle is to provide a kind of standard component, crank throw radius on this standard component is standard size, utilize this standard component to determine the zero-bit of cubing, then remove by this cubing the crank throw radius measuring concrete bent axle, the maximal value of the change of the reading in this cubing is the error amount of the crank throw radius of bent axle to be measured.Finally judge this error amount whether in the poor scope required to judge that whether specific product qualified.Illustrate, the crank throw radius of the present embodiment is the distance R (see Fig. 9) of axis to the axis of connecting rod neck of main bearing journal.
As shown in Figure 1 to Figure 3, the crank throw cubing of the present embodiment, it is used for measuring the error amount of crank throw radius of bent axle, and this cubing comprises measurement components 1 and standard calibration part 2.Wherein measurement components 1 mainly comprises: measuring unit 11, gauge head axle 12, two V-arrangement measuring jaws 131 and dial gauge 19 (see Fig. 9), measuring unit 11 is long cylindrical body structure, inside has pilot hole, the bottom of measuring unit 11 is provided with forked frame 13, and two supporting legs of this forked frame 13 can across adjacent two king journals 32 of bent axle to be measured.Gauge head axle 12 is column, and with the column of probe, one end of this gauge head axle 12 has the probe of necking down, and this gauge head axle 12 to be inserted in pilot hole and to slide up and down, and its technical requirement is slided without clamping stagnation, pop one's head in be in forked frame 13 two supporting legs between.Two V-arrangement measuring jaws 131 are separately positioned on two supporting legs of forked frame 13, and the V-arrangement face of these two V-arrangement measuring jaws 131 is used for being adjacent on the outer wall of two king journals 32 (see Fig. 9) respectively.The centerline of the mobile axis of gauge head axle 12 and two V-arrangement measuring jaws 131 is in same plane.Dial gauge 19 is arranged on the upper end of measuring unit 11, and the mandrel of dial gauge 19 to stretch in pilot hole and is connected to the other end of gauge head axle 12.As a kind of preferred embodiment, dial gauge 19 is specifically installed like this, first in pilot hole 11 upper end, tight cap 14 is housed, it is the little cylindrical body structure with boss, lining 16 (unmarked in figure) is provided with in endoporus, the front end of tight cap 14 is inserted in pilot hole 11, the edge utilizing boss to be connected to pilot hole 11 positions, dial gauge 19 is arranged in lining 16, the mandrel of dial gauge 19 is connected to the other end of gauge head axle 12, in order to fixing dial gauge 19, tight cap 14 sidewall is provided with lock-screw 15, the front end of lock-screw 15 is connected to the outer wall of lining 16.
In addition, as shown in Fig. 6 to 8, standard calibration part 2 comprises two first faces of cylinder coaxially arranged and is arranged on second face of cylinder of these two the first face of cylinder middle upper parts, the consistent size of first face of cylinder and standard crankshaft adjacent main axle journal, second face of cylinder and be in the consistent size of the connecting rod neck between adjacent main axle journal, distance between the center line on center line to the second face of cylinder on first face of cylinder is the crank throw radius of standard, and standard calibration part 2 is used for determining the zero-bit of dial gauge.As a kind of preferred embodiment, the two ends that standard calibration part 2 comprises the first pole piece 22 and the second pole piece 23, first pole piece 22 are processed to form two first faces of cylinder, and the periphery of the second pole piece 23 is processed to form second face of cylinder.Further, standard calibration part 2 also comprises base 21, first pole piece 22 is fixed on base 21 by the first set screws, second pole piece 23 is fixed on the middle part of the first pole piece 22 by the second set screws, in order to registration, between the second pole piece 23 and the first pole piece 22, be also provided with register pin 24.
As a kind of preferred embodiment, in order to drive gauge head axle 12 to move up and down, be provided with holddown spring between the other end of gauge head axle 12 and the front end of tight cap 14, during detection, described holddown spring drives the probe of described gauge head axle to be connected on the connecting rod neck of bent axle to be measured.Between gauge head axle 12 cylindrical body portion and the front end of tight cap 14, be provided with holddown spring 18, when detecting, holddown spring 18 drives the probe of gauge head axle 12 to be connected to (see Fig. 9) on the connecting rod neck 31 of bent axle.When detecting, dial gauge 19 determines zero-bit (concrete operations see below) according to standard calibration part 2, when detecting the error amount of crank throw radius of concrete bent axle, the maximum change of the number of division of dial gauge 19 is the error amount of the crank throw radius of concrete bent axle, also namely by this cubing can batch, repeat the crank throw radius of the concrete bent axle of measurement and the error amount of standard size (standard calibration part 2 provides).
As a kind of preferred embodiment, two V-arrangement measuring jaws 131 are fixed on the front end (see Fig. 4) of supporting leg respectively by set screws.
As a kind of preferred embodiment, stopper slot is provided with at gauge head axle 12 center section, the sidewall of measuring unit 11 is provided with stop screw 17 with stopper slot corresponding position, stop screw 17 ensures that gauge head axle 12 can not depart from measuring unit 11, but, the needs that when spacing scope answers coincidence measurement, gauge head axle 12 moves up and down.
As shown in Figure 9, the concrete steps of this device are below illustrated:
1) by each working surface of this crank throw cubing and the clean cotton wiped clean of tested bent axle.
2) measurement components 1 of this crank throw cubing is placed on standard calibration part 2, position of after searching out peak, dial gauge 19 being returned to zero.
3) measurement components 1 of this crank throw cubing is placed on bent axle to be measured, two V-arrangement measuring jaws 131 are adjacent on king journal 32, the probe of gauge head axle 12 is connected on connecting rod neck 31, measurement components 1 rotates (rotating tested bent axle if desired) around the main axis of tested bent axle, read dial gauge 19 after searching out peak and depart from zero-bit lattice number, this lattice number is the error amount of tested crankshaft crank radius.
4) after measuring, be again placed in by measurement components 1 on standard calibration part 2, whether checking dial gauge, to zero-bit, will not remeasure after zero-bit during zero-bit again.
5) by the clean cotton wiped clean of each working surface of this crank throw cubing, oil and deposit and preserve.
To sum up, the crank throw cubing of the present embodiment, by designing gauge head axle slide-and-guide hole on the measuring unit 11 of measurement components 1, the centerline of the mobile axis of gauge head axle 12 and two V-arrangement measuring jaws 131 is in same plane, and measuring principle is clear and definite, and dispute is few.Cubing adopts saddle ride type structure, measure outside crankshaft crank, avoid the interference of crankshaft crank both sides counterbalance weight, during measurement, crankshaft crank position can be placed arbitrarily, the weight of measuring process cubing can not cause bent axle to deflect, whole measuring process safety, convenience and high-efficiency.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (8)
1. a crank throw cubing, it is used for measuring the error amount of crank throw radius of bent axle, and it is characterized in that, this cubing comprises:
Measurement components, it comprises:
Measuring unit, its inside has pilot hole, and the bottom of described measuring unit is provided with forked frame, and two supporting legs of this forked frame can across adjacent two king journals of bent axle to be measured;
Gauge head axle, it is column, and one end of this gauge head axle has the probe of necking down, and this gauge head axle sleeve to enter in described pilot hole and slides up and down, and described probe is between two supporting legs of described forked frame;
Two V-arrangement measuring jaws, it is separately positioned on two supporting legs of described forked frame, the center line of described two V-arrangement measuring jaws and the mobile axis of described gauge head axle are in same plane, and the V-arrangement face of these two V-arrangement measuring jaws is used for being adjacent to respectively on the outer wall of described two king journals; And
Dial gauge, it is arranged on the upper end of described measuring unit, and the mandrel of described dial gauge to stretch in described pilot hole and is connected to the other end of described gauge head axle; And
Standard calibration part, it second face of cylinder comprising two first faces of cylinder coaxially arranged and be arranged on these two the first face of cylinder middle upper parts, the consistent size of described first face of cylinder and standard crankshaft adjacent main axle journal, described second face of cylinder and be in the consistent size of the connecting rod neck between adjacent main axle journal, the center line on described first face of cylinder to described second face of cylinder center line between distance be the crank throw radius of standard, described standard calibration part is used for determining the zero-bit of described dial gauge;
During detection, described two V-arrangement measuring jaws are adjacent on adjacent two king journals of bent axle to be measured, on connecting rod neck between adjacent two king journals that described probe is connected to bent axle to be measured, the error amount being changed to the crank throw radius of bent axle to be measured of the reading of described dial gauge.
2. crank throw cubing according to claim 1, it is characterized in that, the upper end of described pilot hole is also provided with tight cap, this tight cap is the cylindrical body with boss, the front end of described tight cap inserts described pilot hole and described boss is connected on the edge of described pilot hole, and described dial gauge is arranged on the tail end of described tight cap by lining.
3. crank throw cubing according to claim 2, is characterized in that, the sidewall of described tight cap is provided with lock-screw, and the front end of described lock-screw is connected to the outer wall of described lining.
4. crank throw cubing according to claim 1, it is characterized in that, be provided with holddown spring between the other end of described gauge head axle and the front end of described tight cap, during detection, described holddown spring drives the probe of described gauge head axle to be connected on the connecting rod neck of bent axle to be measured.
5. crank throw cubing according to claim 4, is characterized in that, the center section of described gauge head axle is provided with stopper slot, and the sidewall of described measuring unit is provided with stop screw with described stopper slot corresponding position.
6. crank throw cubing according to claim 5, is characterized in that, described two V-arrangement measuring jaws are fixed on the front end of described supporting leg respectively by set screws.
7. crank throw cubing according to claim 1, it is characterized in that, described standard calibration part comprises the first pole piece and the second pole piece, and the two ends of described first pole piece are processed to form two described first faces of cylinder, and the periphery of described second pole piece is processed to form described second face of cylinder.
8. crank throw cubing according to claim 7, it is characterized in that, described standard calibration part also comprises base, and described first pole piece is fixed on described base by the first set screws, and described second pole piece is fixed on the middle part of described first pole piece by the second set screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670023.8A CN105203000A (en) | 2015-10-15 | 2015-10-15 | Crankshaft radius inspection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670023.8A CN105203000A (en) | 2015-10-15 | 2015-10-15 | Crankshaft radius inspection tool |
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| CN105203000A true CN105203000A (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510670023.8A Pending CN105203000A (en) | 2015-10-15 | 2015-10-15 | Crankshaft radius inspection tool |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595422A (en) * | 2016-11-29 | 2017-04-26 | 广西玉柴机器股份有限公司 | Crankshaft adjacent shift run-out testing tool |
| CN106643409A (en) * | 2016-11-30 | 2017-05-10 | 广西玉柴机器股份有限公司 | Crankshaft thrust stopper width measuring gauge |
| CN106885520A (en) * | 2017-03-29 | 2017-06-23 | 荆州环球汽车零部件制造有限公司 | A kind of camshaft measurement method of axial size |
| CN108225155A (en) * | 2018-02-01 | 2018-06-29 | 中车株洲电机有限公司 | Suitable for the measurement tooling and method of large scale radius |
| CN109341481A (en) * | 2018-11-07 | 2019-02-15 | 万向钱潮传动轴有限公司 | A kind of slip shaft yoke phase special gauge |
| CN113218282A (en) * | 2021-06-25 | 2021-08-06 | 河南柴油机重工有限责任公司 | Device and method for measuring small semicircular diameter of shaft part |
| CN115164679A (en) * | 2022-08-26 | 2022-10-11 | 桂林福达阿尔芬大型曲轴有限公司 | Crankshaft counterweight block radius detection tool and detection method |
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| JPS59125001A (en) * | 1982-12-29 | 1984-07-19 | Ando Electric Co Ltd | Device for measuring diameter of crank shaft |
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| CN204007396U (en) * | 2014-07-29 | 2014-12-10 | 丹江口市东发曲轴有限公司 | A kind of cubing that detects crankshaft key slot position |
| CN204963738U (en) * | 2015-10-15 | 2016-01-13 | 广西玉柴机器股份有限公司 | Utensil is examined to crank throw |
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2015
- 2015-10-15 CN CN201510670023.8A patent/CN105203000A/en active Pending
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| JPS59125001A (en) * | 1982-12-29 | 1984-07-19 | Ando Electric Co Ltd | Device for measuring diameter of crank shaft |
| EP1193028A2 (en) * | 2000-09-29 | 2002-04-03 | Toyoda Koki Kabushiki Kaisha | Method for measuring work portion and machining method |
| CN201532181U (en) * | 2009-11-06 | 2010-07-21 | 广州柴油机厂 | Tool for detecting eccentricity of crankshaft crooked neck |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595422A (en) * | 2016-11-29 | 2017-04-26 | 广西玉柴机器股份有限公司 | Crankshaft adjacent shift run-out testing tool |
| CN106643409A (en) * | 2016-11-30 | 2017-05-10 | 广西玉柴机器股份有限公司 | Crankshaft thrust stopper width measuring gauge |
| CN106885520A (en) * | 2017-03-29 | 2017-06-23 | 荆州环球汽车零部件制造有限公司 | A kind of camshaft measurement method of axial size |
| CN106885520B (en) * | 2017-03-29 | 2019-08-09 | 荆州环球汽车零部件制造有限公司 | A kind of camshaft measurement method of axial size |
| CN108225155A (en) * | 2018-02-01 | 2018-06-29 | 中车株洲电机有限公司 | Suitable for the measurement tooling and method of large scale radius |
| CN109341481A (en) * | 2018-11-07 | 2019-02-15 | 万向钱潮传动轴有限公司 | A kind of slip shaft yoke phase special gauge |
| CN113218282A (en) * | 2021-06-25 | 2021-08-06 | 河南柴油机重工有限责任公司 | Device and method for measuring small semicircular diameter of shaft part |
| CN115164679A (en) * | 2022-08-26 | 2022-10-11 | 桂林福达阿尔芬大型曲轴有限公司 | Crankshaft counterweight block radius detection tool and detection method |
| CN115164679B (en) * | 2022-08-26 | 2023-09-29 | 桂林福达阿尔芬大型曲轴有限公司 | Crankshaft balancing weight radius gauge and detection method |
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Application publication date: 20151230 |
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