CN102494596B - Testing fixture for symmetry degree of crankshaft keyway - Google Patents
Testing fixture for symmetry degree of crankshaft keyway Download PDFInfo
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- CN102494596B CN102494596B CN 201110453009 CN201110453009A CN102494596B CN 102494596 B CN102494596 B CN 102494596B CN 201110453009 CN201110453009 CN 201110453009 CN 201110453009 A CN201110453009 A CN 201110453009A CN 102494596 B CN102494596 B CN 102494596B
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- locating rack
- dial gauge
- crank pin
- fixedly connected
- king journal
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Abstract
The invention relates to a testing fixture for a symmetry degree of a crankshaft keyway. The testing fixture is composed of a beam plate (1), a front V-shaped main journal locating rack (2), a rear V-shaped main journal locating rack (3), an indicating gauge rack (4), indicating gauges (5a, 5b), and a crank pin locating rack (6). Support legs (6a, 6b) are symmetrically arranged at a left end and a right end of the crank pin locating rack (6). The left and right indicating gauges (5a, 5b) are respectively and symmetrically arranged at the left and the right of a horizontal rack plate (41) of the L-shaped indicating gauge rack (4); and an integrated shape with a bilaterally symmetrical structure is formed. According to the invention, the testing fixture can be used simply and conveniently; a requirement on detection levels of detection personnel is substantially reduced; the detection is not constrained by a field or other factors; production on-line detection is realized; and detection efficiency is high.
Description
Technical field
what the present invention relates to is a kind of for the cubing to crankshaft key slot symmetry on-line quick detection.
Background technology
the detection of crankshaft key slot symmetry in the past is that bent axle is placed on the v block of platform, and the way that adds lever indicator with vernier height gauge detects, and concrete detection method is as follows:
the first step: the bent axle that will process keyway is sling, and is placed on two V shape irons of platform, and the positioning spindle neck is contacted with two V shape irons;
second step: the keyway gauge block is inserted to crankshaft key slot, then be adjusted to contour with the lever indicator be arranged on vernier height gauge by two benchmark king journal centers;
the 3rd step: benchmark crank pin center is adjusted to two benchmark king journal centers contour, the plane that benchmark king journal center line and crank pin center line form is parallel with platform;
the 4th step: detect the key tile height in keyway with another piece lever indicator, record numerical value;
the 5th step: the length direction (axial) along bent axle drags dial gauge, observes dial gauge reading changing value;
the 6th step: by bent axle Rotate 180 degree vertically, then repeat the 3rd step, FOUR EASY STEPS, record detects key tile height numerical value;
the 7th step: by above twice key tile height numeric ratio, count difference, and then with axial detection numeric ratio, get its maximal value.
the more problems that this detection method exists.The firstth, checked operation personnel's detection level is had relatively high expectations; The secondth, detect error larger; The 3rd is to detect the limitation that is subject to place, and the 4th is that operation steps is many, and efficiency is low.
Summary of the invention
the purpose of this invention is to provide crankshaft key slot symmetry on-line quick detection cubing a kind of simple in structure, easily manufactured, easy to use.
testing fixture for symmetry degree of crankshaft keyway of the present invention is by beam slab 1, front V-arrangement king journal locating rack 2, rear V-arrangement king journal locating rack 3, dial gauge dial framework 4, two dial gauge 5a, 5b, crank pin locating rack 6 forms, front V-arrangement king journal locating rack 2, rear V-arrangement king journal locating rack 3 be fixedly connected on respectively strip beam slab 1 before, on the lower surface of rear end, the fork-shaped crank pin locating rack 6 that is the left-right symmetric leg is fixedly connected on the lower surface at beam slab 1 middle part, L shaped dial gauge dial framework 4 is fixedly connected on the front end face of front V-arrangement king journal locating rack 2, on the horizontal frame plate 41 of L shaped dial gauge dial framework 4, left-right symmetric offers respectively left and right dial gauge 5a, 5b installs fixed orifice 42a, 42b, left and right dial gauge 5a, 5b is by its sounding rod cover and fixed orifice 42a, 42b is fixed installation, the whole left-right symmetric formula planform that forms.
first left and right two dial gauge 5a, 5b are imitated on same level to standard when cubing of the present invention is used, after soon two dial gauges will be adjusted certain decrement on same level, two dial gauge pointers are adjusted to " 0 " position.
detect:
step 1, the front V-arrangement king journal locating rack 2 of cubing and rear V-arrangement king journal locating rack 3 are placed on two positioning spindle necks 8 of bent axle, along the circumferential direction to a sideway swivel cubing, the leg 6a of crank pin locating rack 6 one sides on cubing is contacted with the crank pin 81 of bent axle, contact with the key piece 9 of bent axle with the gauge outfit of the dial gauge 5a of crank pin 81 homonymies, now record the reading that dial gauge shows;
the difference of two meter readings is the radial symmetry degree of crankshaft key slot to the common plane of crankshaft axis and the formation of crank pin center line.
step 3: mobile cubing backward on the basis of aforesaid operations, in moving process, the leg 6a/6b of crank pin locating rack 6 one sides will keep contacting with crank pin 81, (this detects only needs a direction now to observe dial gauge pointer variable quantity, do not need the bent axle that overturns), this variable quantity is shaft with key way to symmetry.Two kinds of symmetries are relatively got its maximal value, are the symmetry of this keyway to this bent axle.
cubing of the present invention is simple in structure, easily manufactured, easy to use.Greatly reduce the requirement to reviewer's detection level, reduced the detection error, detect the limitation be not subject to place etc., realize producing online the detection, detection efficiency is high, and the operator is after processing keyway, oneself just can detect whenever and wherever possible, no longer need bent axle is hung down, be put on verifying bench, detected by professional reviewer.
cubing accuracy of detection of the present invention and detection of platform and three-coordinates measuring machine contrast:
The accompanying drawing explanation
fig. 1-5th, embodiment of the present invention structural representation, wherein Fig. 1 is front view, and Fig. 2 is the vertical view of Fig. 1, and Fig. 3 is the A-A cut-open view of Fig. 2, and Fig. 4 is the B-B cut-open view of Fig. 3, Fig. 5 is the C-C cut-open view of Fig. 3.
fig. 6, Fig. 7, Fig. 8 are used constitutional diagram.
Embodiment
testing fixture for symmetry degree of crankshaft keyway of the present invention is by beam slab 1, front V-arrangement king journal locating rack 2, rear V-arrangement king journal locating rack 3, dial gauge dial framework 4, two dial gauge 5a, 5b, crank pin locating rack 6 forms, front V-arrangement king journal locating rack 2, rear V-arrangement king journal locating rack 3 be fixedly connected on respectively strip beam slab 1 before, on the lower surface of rear end, crank pin locating rack 6 is by the leg 6a of web joint 60 and web joint 60 two ends, left and right symmetries, 6b forms, crank pin locating rack 6 is fixedly connected on the lower surface at beam slab 1 middle part by web joint 60, L shaped dial gauge dial framework 4 is fixedly connected on the front end face of front V-arrangement king journal locating rack 2, on the horizontal frame plate 41 of L shaped dial gauge dial framework 4, left-right symmetric offers respectively left and right dial gauge 5a, 5b installs fixed orifice 42a, 42b, left and right dial gauge 5a, 5b is by its sounding rod cover and fixed orifice 42a, 42b is fixed installation, the whole left-right symmetric formula planform that forms.
shown in accompanying drawing embodiment, on the front end face of rear V-arrangement king journal locating rack 3, by screw 32, be fixedly connected with and be provided with an axial limiting piece 31, to the cubing axial limiting, axial location when convenient detection is used.
lower end at the two ends, left and right of crank pin locating rack 6 leg 6a, 6b is fixedly connected with by screw heelpiece 61a, the 61b that the hardness high-wearing feature is good respectively.
left and right dial gauge 5a, the 5b that left-right symmetric is offered on horizontal frame plate 41 installs in fixed orifice 42a, 42b and studs with opening thin lining 43, hold out against and clamp lining 43 with holding screw 44, by lining, distortion clamps the dial gauge sounding rod cover be inserted in lining 43, fixedly dial gauge.
Claims (2)
1. testing fixture for symmetry degree of crankshaft keyway, is characterized in that by beam slab (1), front V-arrangement king journal locating rack (2), rear V-arrangement king journal locating rack (3), dial gauge dial framework (4), two dial gauge (5a, 5b), crank pin locating rack (6) forms, front V-arrangement king journal locating rack (2), rear V-arrangement king journal locating rack (3) be fixedly connected on respectively strip beam slab (1) before, on the lower surface of rear end, crank pin locating rack (6) is by the leg (6a of web joint (60) and web joint (60) two ends, left and right symmetry, 6b) form, crank pin locating rack (6) is fixedly connected on the lower surface at beam slab (1) middle part by web joint (60), L shaped dial gauge dial framework (4) is fixedly connected on the front end face of front V-arrangement king journal locating rack (2), in the upper left-right symmetric of the horizontal frame plate (41) of L shaped dial gauge dial framework (4), offers respectively left and right dial gauge (5a, 5b) fixed orifice (42a is installed, 42b), left and right dial gauge (5a, 5b) by its sounding rod cover and fixed orifice (42a, 42b) be fixed installation, the whole left-right symmetric formula planform that forms.
2. testing fixture for symmetry degree of crankshaft keyway according to claim 1 is characterized in that:
Be fixedly connected with and be provided with an axial limiting piece (31) by screw on the front end face of rear V-arrangement king journal locating rack (3);
Be fixedly connected with respectively the heelpiece that the hardness high-wearing feature is good (61a, 61b) in the lower end of the two ends, left and right of crank pin locating rack (6) legs (6a, 6b);
Stud with broached bushing (43) in left and right dial gauge (5a, 5b) is installed fixed orifice (42a, 42b), with holding screw (44), hold out against clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110453009 CN102494596B (en) | 2011-12-30 | 2011-12-30 | Testing fixture for symmetry degree of crankshaft keyway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110453009 CN102494596B (en) | 2011-12-30 | 2011-12-30 | Testing fixture for symmetry degree of crankshaft keyway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102494596A CN102494596A (en) | 2012-06-13 |
| CN102494596B true CN102494596B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110453009 Expired - Fee Related CN102494596B (en) | 2011-12-30 | 2011-12-30 | Testing fixture for symmetry degree of crankshaft keyway |
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| CN (1) | CN102494596B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726966B (en) * | 2017-09-29 | 2024-04-05 | 中铁隆昌铁路器材有限公司 | Omega-shaped spring strip symmetry balance needle type rapid detection tool and detection method |
| CN110345844B (en) * | 2019-08-21 | 2024-03-22 | 桂林福达曲轴有限公司 | Device for detecting distance between crankshaft positioning surface and axis and use method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738156A (en) * | 2010-01-23 | 2010-06-16 | 桂林福达曲轴有限公司 | Detection method of vehicle engine crankshaft key slot |
| CN202382699U (en) * | 2011-12-30 | 2012-08-15 | 辽宁五一八内燃机配件有限公司 | Crankshaft key groove symmetry detecting tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4825536B2 (en) * | 2006-02-15 | 2011-11-30 | 本田技研工業株式会社 | Keyway inspection method and keyway inspection device |
-
2011
- 2011-12-30 CN CN 201110453009 patent/CN102494596B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738156A (en) * | 2010-01-23 | 2010-06-16 | 桂林福达曲轴有限公司 | Detection method of vehicle engine crankshaft key slot |
| CN202382699U (en) * | 2011-12-30 | 2012-08-15 | 辽宁五一八内燃机配件有限公司 | Crankshaft key groove symmetry detecting tool |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2007-218699A 2007.08.30 |
| 周孝焘.曲轴齿轮轴颈键槽位置误差的检测.《汽车技术》.1992,(第2期),第47-51页. |
| 曲轴齿轮轴颈键槽位置误差的检测;周孝焘;《汽车技术》;19921231(第2期);第47-51页 * |
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| CN102494596A (en) | 2012-06-13 |
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Granted publication date: 20131225 Termination date: 20211230 |