CN107607062B - indexing device and method for measuring phase angle full angle of crankshaft connecting rod neck - Google Patents
indexing device and method for measuring phase angle full angle of crankshaft connecting rod neck Download PDFInfo
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- CN107607062B CN107607062B CN201711007904.7A CN201711007904A CN107607062B CN 107607062 B CN107607062 B CN 107607062B CN 201711007904 A CN201711007904 A CN 201711007904A CN 107607062 B CN107607062 B CN 107607062B
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- crankshaft
- connecting rod
- connecting disc
- indexing turntable
- rod neck
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Abstract
the invention discloses a crankshaft connecting rod neck phase angle full-angle measurement dividing device, which comprises a connecting disc, a dividing rotary disc, a positioning bolt and an optical inclinometer, wherein the connecting disc is fixedly connected with the connecting disc; the connecting disc is fixed on the outer side of a flange at the free end of the crankshaft, the indexing turntable is fixedly sleeved at one end of the connecting disc, the positioning bolt is vertically inserted into one side of the indexing turntable and the connecting disc, and the optical inclinometer base is horizontally fixed on the lower side of the indexing turntable. The invention utilizes the indexing turntable to carry out omnibearing phase angle measurement on the crankshaft connecting rod neck, and has simple and compact structure and low cost. In the detection process, the phase angles of the connecting rod necks of the crankshaft can be measured only by slightly rotating the crankshaft, the operation is time-saving and labor-saving, and simultaneously, the measurement of the phase angles of all the connecting rod necks of the crankshaft in a 360-degree full-angle range can be realized by one-time clamping, so that the detection efficiency is greatly improved, and the detection error is ensured to be small due to small calculated amount.
Description
Technical Field
the invention relates to a device and a method for measuring a phase angle of a crankshaft connecting rod neck, in particular to a device and a method for measuring a phase angle of the crankshaft connecting rod neck within a range of 360 degrees, and belongs to the technical field of detection tools.
Background
The crankshaft is a core component of the engine for outputting power externally and is an important power source for driving the ship to run. The operation of the crankshaft is extremely complex, it works under the action of cyclically varying gas forces, reciprocating and rotating inertia forces and moments thereof, bearing complex stresses of torsion and bending. Therefore, the checking of the dimensions of the crankshaft should be performed strictly according to the requirements of the drawings and the related technical parameters, and especially the phase angle detection of the connecting rod neck is more important. At present, the operation is quite complicated when the phase angle of the crankshaft connecting rod neck is measured, a large amount of calculation is needed, the detection error is large, the working efficiency is low, the measurement range of the detector is small, and all the phase angles of the crankshaft connecting rod neck can not be detected all-directionally at one time.
disclosure of Invention
The invention aims to provide a crankshaft connecting rod neck phase angle full-angle measuring indexing device and method which are simple in structure, convenient to operate, high in detection efficiency and capable of measuring all connecting rod neck phase angles of a crankshaft within a 360-degree full-angle range.
The invention is realized by the following technical scheme:
a full-angle measuring and dividing device for a phase angle of a crankshaft connecting rod neck comprises a connecting disc, a dividing rotary disc, a positioning bolt and an optical inclinometer; the connecting disc is fixed on the outer side of a flange at the free end of the crankshaft, the indexing turntable is fixedly sleeved at one end of the connecting disc, the positioning bolt is vertically inserted into one side of the indexing turntable and one side of the connecting disc, and the optical inclinometer base is horizontally fixed on the lower side of the indexing turntable.
The object of the invention is further achieved by the following technical measures.
According to the indexing device for measuring the phase angle full angle of the crankshaft connecting rod neck, the connecting disc is of a flange structure with a flange, and the indexing turntable is sleeved on the flange of the connecting disc and is fixedly connected with the flange edge of the connecting disc.
In the full-angle measurement indexing device for the phase angle of the connecting rod neck of the crankshaft, one side of the indexing turntable is provided with the first positioning hole.
In the indexing device for measuring the phase angle full angle of the crankshaft connecting rod neck, the two sides of the flange edge of the connecting disc are symmetrically provided with the second positioning holes, the two second positioning holes are respectively positioned on the same central line of the connecting disc, and the positioning bolts are respectively inserted into the first positioning holes and the corresponding second positioning holes.
In the indexing device for measuring the phase angle of the crankshaft connecting rod neck at the full angle, the positioning bolt is of a stepped shaft structure.
a method for measuring a full angle of a phase angle of a crankshaft connecting rod neck comprises the following steps:
1) Respectively supporting a first main journal, a third main journal and a sixth main journal of the crankshaft on brackets, and adjusting each bracket to enable the central lines of the main journals to be positioned on the same straight line;
2) Fixing a connecting disc on the outer side of a free end flange of the crankshaft through a fastener, sleeving an indexing turntable on the connecting disc flange, sequentially inserting a positioning bolt into a first positioning hole in the indexing turntable and a second positioning hole on one side of the connecting disc to position the indexing turntable, fixing the indexing turntable on the connecting disc through the fastener, then pulling out the positioning bolt, and installing the optical inclinometer on the lower side of the indexing turntable;
3) rotating the crankshaft to enable the central line of the first connecting rod neck of the crankshaft and the central lines of the main journals to be positioned in the same horizontal plane, measuring the phase angle alpha 1 of the first connecting rod neck of the crankshaft by using an optical inclinometer, and taking the phase angle alpha 1 of the first connecting rod neck of the crankshaft as a zero position;
4) Continuing to rotate the crankshaft to enable the central line of a second connecting rod neck of the crankshaft and the central lines of the main journals to be positioned in the same horizontal plane, and measuring a phase angle alpha 2 of the second connecting rod neck of the crankshaft by using an optical inclinometer, wherein alpha 2-alpha 1 is the phase angle of the second connecting rod neck of the crankshaft;
5) respectively measuring the phase angles of other connecting rod necks of the crankshaft within the measuring range of +/-120 degrees of the optical inclinometer by the same method;
6) Screwing out the fastener, rotating the indexing turntable by 180 degrees, sequentially inserting the positioning bolts into a first positioning hole in the indexing turntable and a second positioning hole in the other side of the connecting disc, then screwing the fastener to fix the indexing turntable on the connecting disc, rotating the optical inclinometer by 180 degrees along with the indexing turntable at the moment, and repeating the steps 3), 4) and 5) to measure the phase angle of each residual connecting rod neck of the crankshaft.
The invention utilizes the indexing turntable to carry out omnibearing phase angle measurement on the crankshaft connecting rod neck, and has simple and compact structure and low cost. In the detection process, the phase angles of the connecting rod necks of the crankshaft can be measured only by slightly rotating the crankshaft, the operation is time-saving and labor-saving, and simultaneously, the measurement of the phase angles of all the connecting rod necks of the crankshaft in a 360-degree full-angle range can be realized by one-time clamping, so that the detection efficiency is greatly improved, and the detection error is ensured to be small due to small calculated amount. In addition, the invention also expands the measuring range of the optical inclinometer. The second locating holes are symmetrically arranged on the two sides of the connecting disc, so that the indexing turntable can be located quickly, accurately and reliably, and the detection efficiency is further improved.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of the present invention;
Fig. 2 is a left side view of fig. 1.
Detailed Description
the invention is further illustrated by the following figures and examples.
As shown in fig. 1 and 2, the present invention includes a connection disc 1, an index dial 2, a positioning pin 3, and an optical inclinometer 4. Connection pad 1 is the flange structure of flanged, connection pad 1 is fixed on the bent axle free end flange 6 outside through four bolts 5, graduation carousel 2 suit is on connection pad flange 11, graduation carousel 2 one side is equipped with first locating hole 21, connection pad flange 12 left and right sides symmetry is equipped with second locating hole 13, two second locating holes 13 are located connection pad 1 same central line respectively, location bolt 3 inserts perpendicularly respectively in first locating hole 21 and the corresponding second locating hole 13, thereby with graduation carousel 2 location, graduation carousel 2 links firmly with connection pad flange 12 through four housing screw 7 simultaneously, wherein location bolt 3 is the step shaft structure. The base 41 of the optical inclinometer 4 is horizontally fixed to the underside of the index dial 2 by two socket head cap screws 8.
A method for measuring a full angle of a phase angle of a crankshaft connecting rod neck comprises the following steps:
1) Respectively supporting a first main journal, a third main journal and a sixth main journal of the crankshaft on brackets, and adjusting each bracket to enable the central lines of the main journals to be positioned on the same straight line;
2) fixing a connecting disc 1 on the outer side of a crankshaft free end flange 6 through a bolt 5, sleeving an indexing rotary disc 2 on a connecting disc flange 11, sequentially inserting a positioning bolt 3 into a first positioning hole 21 in the indexing rotary disc 2 and a second positioning hole 13 in the left side of the connecting disc 1 to position the indexing rotary disc 2, fixing the indexing rotary disc 2 on the connecting disc 1 through a compression screw 7, then pulling out the positioning bolt 3, and installing an optical clinometer 4 on the lower side of the indexing rotary disc 2;
3) rotating the crankshaft to enable the central line of the first connecting rod neck of the crankshaft and the central lines of the main journals to be positioned in the same horizontal plane, measuring a phase angle alpha 1 of the first connecting rod neck of the crankshaft by using an optical inclinometer 4, and taking the phase angle alpha 1 of the first connecting rod neck of the crankshaft as a zero position;
4) continuing to rotate the crankshaft to enable the central line of a second connecting rod neck of the crankshaft and the central lines of the main journals to be positioned in the same horizontal plane, measuring a phase angle alpha 2 of the second connecting rod neck of the crankshaft by using an optical inclinometer 4 at the moment, wherein alpha 2-alpha 1 is the phase angle of the second connecting rod neck of the crankshaft;
5) respectively measuring the phase angles of the rest connecting rod necks of the crankshaft within the measuring range of 4 +/-120 degrees of the optical inclinometer by the same method;
6) screwing out the compression screw 7, rotating the indexing turntable 2 by 180 degrees, sequentially inserting the positioning bolt 3 into a first positioning hole 21 on the indexing turntable 2 and a second positioning hole 13 on the right side of the connecting disc 1, then screwing down the compression screw 7 to fix the indexing turntable 2 on the connecting disc 1, rotating the optical inclinometer 4 by 180 degrees along with the indexing turntable 2 at the moment, and repeating the steps 3), 4) and 5), so that the phase angles of the rest connecting rod necks of the crankshaft can be measured, and the measurement of the phase angles of all the connecting rod necks of the crankshaft in a 360-degree full-angle range is completed.
in addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (1)
1. A full-angle measuring and dividing device for a phase angle of a crankshaft connecting rod neck comprises a connecting disc, a dividing rotary disc, a positioning bolt and an optical inclinometer; the connecting disc is fixed on the outer side of a flange at the free end of the crankshaft, the indexing turntable is fixedly sleeved on one end of the connecting disc, the positioning bolt is vertically inserted into one side of the indexing turntable and the connecting disc, and the optical clinometer base is horizontally fixed on the lower side of the indexing turntable; the connecting disc is of a flange structure with a flange, the indexing rotary disc is sleeved on the flange of the connecting disc and is fixedly connected with the flange edge of the connecting disc, a first positioning hole is formed in one side of the indexing rotary disc, second positioning holes are symmetrically formed in two sides of the flange edge of the connecting disc, the two second positioning holes are respectively located on the same central line of the connecting disc, and positioning bolts are respectively inserted into the first positioning hole and the corresponding second positioning holes;
a method for measuring a full angle of a phase angle of a crankshaft connecting rod neck is characterized by comprising the following steps:
1) Respectively supporting a first main journal, a third main journal and a sixth main journal of the crankshaft on brackets, and adjusting each bracket to enable the central lines of the main journals to be positioned on the same straight line;
2) Fixing a connecting disc on the outer side of a free end flange of the crankshaft through a fastener, sleeving an indexing turntable on the connecting disc flange, sequentially inserting a positioning bolt into a first positioning hole in the indexing turntable and a second positioning hole on one side of the connecting disc to position the indexing turntable, fixing the indexing turntable on the connecting disc through the fastener, then pulling out the positioning bolt, and installing the optical inclinometer on the lower side of the indexing turntable;
3) rotating the crankshaft to enable the central line of the first connecting rod neck of the crankshaft and the central lines of the main journals to be positioned in the same horizontal plane, measuring the phase angle alpha 1 of the first connecting rod neck of the crankshaft by using an optical inclinometer, and taking the phase angle alpha 1 of the first connecting rod neck of the crankshaft as a zero position;
4) Continuing to rotate the crankshaft to enable the central line of a second connecting rod neck of the crankshaft and the central lines of the main journals to be positioned in the same horizontal plane, and measuring a phase angle alpha 2 of the second connecting rod neck of the crankshaft by using an optical inclinometer, wherein alpha 2-alpha 1 is the phase angle of the second connecting rod neck of the crankshaft;
5) Respectively measuring the phase angles of other connecting rod necks of the crankshaft within the measuring range of +/-120 degrees of the optical inclinometer by the same method;
6) Screwing out the fastener, rotating the indexing turntable by 180 degrees, sequentially inserting the positioning bolts into a first positioning hole in the indexing turntable and a second positioning hole in the other side of the connecting disc, then screwing the fastener to fix the indexing turntable on the connecting disc, rotating the optical inclinometer by 180 degrees along with the indexing turntable at the moment, and repeating the steps 3), 4) and 5) to measure the phase angle of each residual connecting rod neck of the crankshaft.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711007904.7A CN107607062B (en) | 2017-10-25 | 2017-10-25 | indexing device and method for measuring phase angle full angle of crankshaft connecting rod neck |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711007904.7A CN107607062B (en) | 2017-10-25 | 2017-10-25 | indexing device and method for measuring phase angle full angle of crankshaft connecting rod neck |
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| CN107607062A CN107607062A (en) | 2018-01-19 |
| CN107607062B true CN107607062B (en) | 2019-12-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108955491B (en) * | 2018-07-30 | 2020-08-25 | 陕西柴油机重工有限公司 | Multifunctional chassis tool for measuring piston profile by roundness measuring instrument and measuring method thereof |
| CN110132176A (en) * | 2019-04-30 | 2019-08-16 | 上海航天壹亘智能科技有限公司 | The detection method of crankshaft crank phase |
| CN117553732B (en) * | 2023-10-27 | 2024-04-26 | 河北省科学院应用数学研究所 | Crankshaft relative rotation angle measuring device and method |
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| CN101061368A (en) * | 2005-04-20 | 2007-10-24 | 普乐福尼克·迪特·布什股份公司 | Apparatus for the measurement of crankshaft parameters |
| CN202825455U (en) * | 2012-09-26 | 2013-03-27 | 宁波合力机泵有限公司 | elbow-neck phase angle adjustment device used for grinding crankshaft elbow |
| CN103090821A (en) * | 2011-11-08 | 2013-05-08 | 普乐福尼克·迪特·布什股份公司 | Method For Determining The Orientation Of Two Shafts Connected Via Two Universal Joints And A Third Shaft In The Plane Of The Three Shafts |
| CN203901010U (en) * | 2014-06-10 | 2014-10-29 | 中船动力有限公司 | Crankshaft machining dividing device |
| CN204115641U (en) * | 2014-10-30 | 2015-01-21 | 淄博柴油机总公司 | Crank phase angle detection device |
-
2017
- 2017-10-25 CN CN201711007904.7A patent/CN107607062B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101061368A (en) * | 2005-04-20 | 2007-10-24 | 普乐福尼克·迪特·布什股份公司 | Apparatus for the measurement of crankshaft parameters |
| CN103090821A (en) * | 2011-11-08 | 2013-05-08 | 普乐福尼克·迪特·布什股份公司 | Method For Determining The Orientation Of Two Shafts Connected Via Two Universal Joints And A Third Shaft In The Plane Of The Three Shafts |
| CN202825455U (en) * | 2012-09-26 | 2013-03-27 | 宁波合力机泵有限公司 | elbow-neck phase angle adjustment device used for grinding crankshaft elbow |
| CN203901010U (en) * | 2014-06-10 | 2014-10-29 | 中船动力有限公司 | Crankshaft machining dividing device |
| CN204115641U (en) * | 2014-10-30 | 2015-01-21 | 淄博柴油机总公司 | Crank phase angle detection device |
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Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |
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