CN109238732B - Quick detachable rotating speed measuring device for diesel engine crankshaft - Google Patents
Quick detachable rotating speed measuring device for diesel engine crankshaft Download PDFInfo
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- CN109238732B CN109238732B CN201811318466.0A CN201811318466A CN109238732B CN 109238732 B CN109238732 B CN 109238732B CN 201811318466 A CN201811318466 A CN 201811318466A CN 109238732 B CN109238732 B CN 109238732B
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- 238000005259 measurement Methods 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 244000257782 Ipomoea triloba Species 0.000 claims description 4
- 239000003550 marker Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 6
- 230000003993 interaction Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Testing Of Engines (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention is used for the quick dismantlement formula rotational speed measuring device of the crankshaft of the diesel engine, through setting up expansion ring (5) and gear disc (9) separately in the left and right sides of the mounting column (6), then there are telescopic columns (1) in the expansion ring, fix the expansion ring in the end hole of the goal of the crankshaft to be measured in order to realize the measurement of the rotational speed of the crankshaft through the cooperation of telescopic column and expansion ring, one person can finish installing and dismantling, the invention has simple in construction, easy to operate, advantage such as being effectual of measurement, suitable for popularizing and applying in a large scale.
Description
Technical Field
The invention relates to the technical field of diesel engines, in particular to a quick detachable rotating speed measuring device for a crankshaft of a diesel engine.
Background
It is known that the rotational speed of a diesel engine, i.e. the rotational speed of a crankshaft of the diesel engine, is too large and too small, which affects the stability, economy and other related performances of the diesel engine, so that the rotational speed of the diesel engine needs to be accurately measured and strictly controlled. The existing diesel engine rotational speed measurement modes are various, and the more common measurement modes mainly comprise the following two modes:
The first is that a diesel engine crankshaft is concentrically provided with a gear disc, and the number of teeth passing through in a certain time is measured by a magneto-electric sensor to measure the rotating speed.
The second is that a testing flange is concentrically arranged on the crankshaft of the diesel engine, and a rotation speed measuring device such as an angle marker, a code disc and the like is arranged on the flange to finish rotation speed measurement.
The two measurement modes are all required to be provided with a gear disc or a test flange on a crankshaft of the diesel engine, the gear disc or the test flange is required to be concentrically arranged in the installation process, a certain torque is loaded, and a large amount of manpower and material resources are required during installation and disassembly, so that the waste of personnel and time is caused. If the device is installed and disassembled in the field environment, the device is more difficult to install and disassemble, and the smooth performance of the test and the work is seriously affected.
It is important to provide a quick disconnect speed measurement device for a diesel engine crankshaft.
Disclosure of Invention
In order to overcome the defects in the background art, the invention provides the rapid disassembly type rotating speed measuring device for the crankshaft of the diesel engine, and the rapid disassembly type rotating speed measuring device has the advantages of simple structure, convenience in operation, good measuring effect and the like by arranging the expansion rings and the gear discs at the left end and the right end of the mounting column respectively and then arranging the telescopic columns in the expansion rings.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
The utility model provides a quick dismantlement formula rotational speed measuring device for diesel engine bent axle, includes telescopic column, expansion ring, erection column, toothed disc and bolt the left end face of erection column is equipped with the expansion ring of outside extension, is equipped with the big right side of left side little bell mouth in the left end of expansion ring inner edge face be equipped with the telescopic column in the hole of expansion ring be equipped with the big right side little bell mouth in left side on the outer fringe face on telescopic column 1 right side, be equipped with the screw hole in the middle part of telescopic column right-hand member face, be equipped with the toothed disc at the right-hand member face of erection column, be equipped with the bolt perforation that link up to the expansion ring hole in the middle part of toothed disc right-hand member face be equipped with the bolt in the bolt perforation, the outer threaded connection screw hole of bolt form quick dismantlement formula rotational speed measuring device for diesel engine bent axle.
The rapid disassembly type rotating speed measuring device for the diesel engine crankshaft is characterized in that the expansion ring, the mounting column and the gear disc are coaxially arranged.
The rapid disassembly type rotating speed measuring device for the diesel engine crankshaft is characterized in that a plurality of connecting holes are formed in the right end face of the gear disc, and the connecting holes are connected with an angle indicator or a code disc.
The rapid disassembly type rotating speed measuring device for the diesel engine crankshaft is characterized in that an extending column extending rightward is arranged on the right side of the conical surface, and a threaded hole is formed in the middle of the right end face of the extending column.
The quick disassembly type rotating speed measuring device for the diesel engine crankshaft is characterized in that a plurality of gear teeth are arranged on the outer edge surface of the gear disc.
The observation hole is a circular hole or an elliptical hole or an oblong hole.
The quick disassembly type rotating speed measuring device for the diesel engine crankshaft is characterized in that a counter bore is formed in the middle of the right end face of the gear disc, and a bolt through hole penetrating through an inner hole of the expansion ring is formed in the middle of the bottom of the counter bore.
The quick disassembly type rotating speed measuring device for the diesel engine crankshaft is characterized in that an observation hole penetrating to the counter bore is formed in the outer edge surface of the mounting column.
By adopting the technical scheme, the invention has the following advantages:
According to the invention, the expansion rings and the gear discs are respectively arranged at the left end and the right end of the mounting column, then the expansion rings are provided with the telescopic columns, and the expansion rings are fixed in the inner holes at the tail end of the tested crankshaft through the matching of the telescopic columns and the expansion rings, so that the rotation speed of the crankshaft can be measured, and one person can finish the mounting and dismounting.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
In the figure: 1. a telescopic column; 2. a conical surface; 3. an extension column; 4. a threaded hole; 5. an expansion loop; 6. a mounting column; 7. perforating a bolt; 8. an observation hole; 9. a gear plate; 10. a connection hole; 11. countersink; 12. and (5) a bolt.
Detailed Description
The present invention will be explained in more detail by the following examples, which are not intended to limit the scope of the invention;
It should be noted that, in describing the structure, the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The quick disassembly type rotating speed measuring device for the diesel engine crankshaft comprises a telescopic column 1, an expansion ring 5, a mounting column 6, a gear disc 9 and bolts 12, wherein the left end face of the mounting column 6 is provided with the expansion ring 5 which extends outwards, the left end of the inner edge face of the expansion ring 5 is provided with a conical hole with big left and small right, the inner hole of the expansion ring 5 is provided with the telescopic column 1, the outer edge face of the right side of the telescopic column 1 is provided with a conical face 2 with big left and small right, the middle part of the right end face of the telescopic column 1 is provided with a threaded hole 4, or the right side of the conical face 2 is provided with an extension column 3 which extends rightwards, the middle part of the right end face of the extension column 3 is provided with a threaded hole 4, the telescopic column 1 has the functions of enabling the expansion ring 5 to expand, namely, the conical face 2 on the telescopic column 1 is contacted with the conical hole on the expansion ring 5, the outer edge face of the expansion ring 5 is enabled to expand through continuous right movement of the telescopic column 1, and then the outer edge face of the expansion ring 5 is enabled to be connected with the inner hole on the target end of the tested diesel engine; the right end face of the mounting column 6 is provided with a gear disc 9, the expansion ring 5, the mounting column 6 and the gear disc 9 are coaxially arranged, and in order to improve the application range of the invention in practical implementation, the right end face of the gear disc 9 is provided with a plurality of connecting holes 10, and the connecting holes 10 are connected with a corner marker instrument or a code disc; the outer edge surface of the gear disc 9 is provided with a plurality of gear teeth, the middle part of the right end surface of the gear disc 9 is provided with a bolt perforation 7 penetrating through the inner hole of the expansion ring 5, in order to reduce the weight of the device in practical implementation, the middle part of the right end surface of the gear disc 9 is provided with a counter bore 11, and the middle part of the bottom of the counter bore 11 is provided with a bolt perforation 7 penetrating through the inner hole of the expansion ring 5, wherein the function of the counter bore 11 not only can reduce the weight of the device, but also can shorten the length of a bolt 12; further, in order to improve the convenience of using the device, an observation hole 8 penetrating to a counter bore 11 is formed in the outer edge surface of the mounting column 6, the observation hole 8 is a circular hole, an elliptical hole or an oblong hole, and the shape of the observation hole 8 is preferably an oblong hole; the bolt through hole 7 is internally provided with a bolt 12, and an external thread of the bolt 12 is connected with the threaded hole 4 to form the quick-disassembly type rotating speed measuring device for the diesel engine crankshaft.
In the specific implementation of the invention, the expansion ring 5 is composed of four circular arc sheets with the thickness of 2mm, the four circular arc sheets form a circular ring with interval gaps, and all parts in the invention are processed by stainless steel materials, are corrosion-resistant and have certain ductility.
When the device is specifically used, the telescopic column 1 is sleeved into the expansion ring 5 of the mounting column 6 from left to right, the bolt 12 is screwed by a spanner, at the moment, the telescopic column 1 continuously moves rightwards and pushes against the expansion ring 5 to expand the expansion ring 5 under the pulling of the bolt 12, after the expansion ring 5 expands, the outer edge surface of the expansion ring 5 inserted into the inner hole of the target end of the tested diesel engine crankshaft and the inner hole of the target end of the crankshaft generate interaction force, the interaction force among the telescopic column 1, the expansion ring 5 and the inner hole of the target end of the crankshaft gradually becomes larger along with the continuous screwing of the bolt 12, and when the interaction force reaches a certain degree, enough friction force is generated between the expansion ring 5 and the inner hole of the target end of the crankshaft, so that the device can rotate along with the diesel engine crankshaft, and the device can independently and cooperatively complete testing tasks.
After the test task is completed, the spanner is used for loosening the bolt 12, the interaction force among the telescopic column 1, the expansion ring 5 and the inner hole at the target end of the crankshaft gradually decreases along with the disassembly, and when no interaction force exists among the three, the device can be easily taken out to complete the disassembly.
The gear disk 9 has enough teeth, and the magneto-electric sensor can be used for directly measuring the rotating speed.
The invention is not described in detail in the prior art.
The embodiments selected herein for the purposes of disclosing the invention are presently considered to be suitable, but it is to be understood that the invention is intended to include all such variations and modifications as fall within the spirit and scope of the invention.
Claims (7)
1. A quick dismantlement formula rotational speed measuring device for diesel engine bent axle, including flexible post (1), expansion ring (5), erection column (6), gear wheel (9) and bolt (12), characterized by: the left end face of erection column (6) is equipped with outside expansion ring (5), is equipped with the big right side of left side little bell mouth in the left end of expansion ring (5) inner edge face, is equipped with telescopic column (1) in the hole of expansion ring (5) be equipped with the big right side of left side little bell mouth (2) on the outer fringe face on telescopic column (1) right side, be equipped with screw hole (4) at the middle part of telescopic column (1) right-hand member face, be equipped with toothed disc (9) at the right-hand member face of erection column (6), be equipped with in the middle part of toothed disc (9) right-hand member face and link up bolt perforation (7) to expansion ring (5) hole be equipped with bolt (12) in bolt perforation (7), the external thread connection screw hole (4) of bolt (12) form quick dismantlement formula speed measurement device for diesel engine bent axle.
2. The quick disconnect speed measurement device for a diesel engine crankshaft of claim 1, wherein: the expansion ring (5), the mounting column (6) and the gear disc (9) are coaxially arranged.
3. The quick disconnect speed measurement device for a diesel engine crankshaft of claim 1, wherein: the right end face of the gear disc (9) is provided with a plurality of connecting holes (10), and the connecting holes (10) are connected with an angle marker instrument or a code disc.
4. The quick disconnect speed measurement device for a diesel engine crankshaft of claim 1, wherein: the right side of the conical surface (2) is provided with an extending column (3) extending rightwards, and the middle part of the right end surface of the extending column (3) is provided with a threaded hole (4).
5. The quick disconnect speed measurement device for a diesel engine crankshaft of claim 1, wherein: the outer edge surface of the gear disc (9) is provided with a plurality of gear teeth.
6. The quick disconnect speed measurement device for a diesel engine crankshaft of claim 1, wherein: the middle part of the right end face of the gear disc (9) is provided with a counter bore (11), and the middle part of the bottom of the counter bore (11) is provided with a bolt perforation (7) which penetrates through the inner hole of the expansion ring (5).
7. A quick disconnect speed measurement apparatus for a diesel engine crankshaft as defined in any one of claims 1 and 6 wherein: an observation hole (8) penetrating to the counter bore (11) is formed in the outer edge surface of the mounting column (6); the observation hole (8) is a round hole or an elliptical hole or an oblong hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318466.0A CN109238732B (en) | 2018-11-07 | 2018-11-07 | Quick detachable rotating speed measuring device for diesel engine crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318466.0A CN109238732B (en) | 2018-11-07 | 2018-11-07 | Quick detachable rotating speed measuring device for diesel engine crankshaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109238732A CN109238732A (en) | 2019-01-18 |
| CN109238732B true CN109238732B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811318466.0A Active CN109238732B (en) | 2018-11-07 | 2018-11-07 | Quick detachable rotating speed measuring device for diesel engine crankshaft |
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| Country | Link |
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| CN (1) | CN109238732B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080017569A (en) * | 2006-08-21 | 2008-02-27 | 현대자동차주식회사 | Crank position sensor device of engine in vehicle |
| CN103154535A (en) * | 2010-10-11 | 2013-06-12 | 喜利得股份公司 | Sensor arrangement, for example on an anchor bolt |
| CN103485845A (en) * | 2012-06-13 | 2014-01-01 | 通用电气公司 | Turbomachine alignment pin |
| CN205936849U (en) * | 2016-08-22 | 2017-02-08 | 浙江新柴股份有限公司 | Use diesel engine of built -in crankshaft rotating speed sensor |
| CN207364039U (en) * | 2017-05-25 | 2018-05-15 | 刘韦明 | A kind of expansion bolt external member |
| WO2018098945A1 (en) * | 2016-11-30 | 2018-06-07 | 广西玉柴机器股份有限公司 | Engine performance testing and comparing apparatus |
| CN209117352U (en) * | 2018-11-07 | 2019-07-16 | 河南柴油机重工有限责任公司 | A kind of fast detachable rotation-speed measuring device for crankshaft of diesel engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006023554A1 (en) * | 2006-05-19 | 2007-11-22 | Zf Friedrichshafen Ag | Determining the speed of a gear shaft |
-
2018
- 2018-11-07 CN CN201811318466.0A patent/CN109238732B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080017569A (en) * | 2006-08-21 | 2008-02-27 | 현대자동차주식회사 | Crank position sensor device of engine in vehicle |
| CN103154535A (en) * | 2010-10-11 | 2013-06-12 | 喜利得股份公司 | Sensor arrangement, for example on an anchor bolt |
| CN103485845A (en) * | 2012-06-13 | 2014-01-01 | 通用电气公司 | Turbomachine alignment pin |
| CN205936849U (en) * | 2016-08-22 | 2017-02-08 | 浙江新柴股份有限公司 | Use diesel engine of built -in crankshaft rotating speed sensor |
| WO2018098945A1 (en) * | 2016-11-30 | 2018-06-07 | 广西玉柴机器股份有限公司 | Engine performance testing and comparing apparatus |
| CN207364039U (en) * | 2017-05-25 | 2018-05-15 | 刘韦明 | A kind of expansion bolt external member |
| CN209117352U (en) * | 2018-11-07 | 2019-07-16 | 河南柴油机重工有限责任公司 | A kind of fast detachable rotation-speed measuring device for crankshaft of diesel engine |
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| Publication number | Publication date |
|---|---|
| CN109238732A (en) | 2019-01-18 |
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