CN214308527U - Engine crankshaft phase deviation rapid measurement tool - Google Patents
Engine crankshaft phase deviation rapid measurement tool Download PDFInfo
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- CN214308527U CN214308527U CN202120001607.7U CN202120001607U CN214308527U CN 214308527 U CN214308527 U CN 214308527U CN 202120001607 U CN202120001607 U CN 202120001607U CN 214308527 U CN214308527 U CN 214308527U
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- engine crankshaft
- phase deviation
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- 238000005259 measurement Methods 0.000 title claims description 18
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000012356 Product development Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model aims at providing a simple structure, low in manufacturing cost, convenient operation, labour saving and time saving's engine crankshaft phase deviation rapid survey frock to reduce staff's intensity of labour, save experiment resource usage, improve work efficiency. The utility model discloses a quick measuring tool for phase deviation of an engine crankshaft, which comprises a reference bracket and a slide block movably arranged on the reference bracket; the datum bracket is provided with a fixing structure for detachably assembling the datum bracket to the engine gantry bracket; the slider is equipped with and link up the screw to install the survey pin through this screw, the benchmark support is equipped with the logical groove that supplies the survey pin to pass. The utility model discloses an engine crankshaft phase deviation rapid survey frock simple structure, it is convenient to measure, but the wide application is in laboratory or dismouting workshop to alleviate operator's intensity of labour, promote work efficiency.
Description
Technical Field
The utility model relates to a measurement of bent axle phase place among the automobile engine assembly, concretely relates to in the face of the frock of engine crankshaft phase place measurement demand in the product development stage.
Background
The crankshaft signal of the engine is the basic input for engine ignition and fuel injection, and the deviation is generally required to be controlled within 1 DEG CrA, and the allowable deviation is smaller if the engine combustion is very sensitive to the crankshaft signal.
Currently, 2 methods are generally used for determining the phase of the crankshaft of the engine: the method is generally used for rapidly judging whether obvious deviation exists in the process of machining or assembling the crankshaft or the flywheel. The other scheme needs to be carried out on an engine rack, software judges the compression top dead center moment of one cylinder of the engine through a cylinder pressure sensor, and simultaneously accesses a missing tooth signal triggered by a crankshaft flywheel, so that a crankshaft position signal output by an engine assembly can be read on a computer screen. This method is relatively more accurate, but is cumbersome to operate, requires testing on the engine bench, and requires a series of sensor arrangements such as cylinder pressure sensors, which consume a lot of resources.
Disclosure of Invention
The utility model aims at providing a simple structure, low in manufacturing cost, convenient operation, labour saving and time saving's engine crankshaft phase deviation rapid survey frock to reduce staff's intensity of labour, save experiment resource usage, improve work efficiency.
The utility model discloses a quick measuring tool for phase deviation of an engine crankshaft, which comprises a reference bracket and a slide block movably arranged on the reference bracket; the datum bracket is provided with a fixing structure for detachably assembling the datum bracket to the engine gantry bracket; the slider is equipped with and link up the screw to install the survey pin through this screw, the benchmark support is equipped with the logical groove that supplies the survey pin to pass.
During measurement, a reference support is fixed at a mounting hole of a crankshaft position sensor of a gantry support by a fixing structure, a measuring pin is inserted into a through groove of the reference support, the length of the measuring pin exposed out of the reference support is adjusted by rotating the measuring pin, the head sharp point of the measuring pin is ensured to be in slight contact with the falling edge of a flywheel signal tooth, a sliding block slides on the reference support until the head sharp point of the measuring pin is in slight contact with the falling edge of the flywheel signal tooth, and the measured relative displacement of the sliding block and the reference support is the crankshaft phase mechanical deviation of the engine. After the measurement is finished, the measuring pin is firstly separated from the contact with the flywheel signal teeth, then the sliding block and the measuring pin are taken down from the reference support, then the measuring pin is screwed out of the sliding block and is placed separately from the sliding block, and finally the reference support is taken down from the gantry support.
Furthermore, scale marks are marked on the reference support, and scale reference is marked on the sliding block, so that the difference value between the scale marks of the sliding block and the nominal median scale mark of the reference support during measurement is the mechanical deviation of the crankshaft phase of the engine, and a measurer only needs to read the difference value without measuring in addition.
Furthermore, the fixing structure is composed of a step through hole arranged on the reference support and a bolt penetrating through the step through hole, the reference support is placed on the gantry support, the bolt is screwed into the crankshaft position sensor mounting hole of the gantry support, and the reference support can be fixed at a preset position of the gantry support. After the measurement is finished, the bolt is screwed out, and the measurement tool can be taken down from the gantry support.
Further, benchmark support and slider are equipped with the cooperation cambered surface of laminating each other so that the slider freely slides along the benchmark support, the centre of a circle of cooperation cambered surface is located the engine crankshaft's that awaits measuring axis to guarantee that the slider rotates round the engine crankshaft's that awaits measuring axis, thereby make the measuring needle all the time towards the engine crankshaft's that awaits measuring axis, avoid deviating in the measurement deviation that the engine crankshaft's that awaits measuring axis leads to because of the measuring needle.
The utility model discloses an engine crankshaft phase deviation rapid survey frock simple structure, it is convenient to measure, but the wide application is in laboratory or dismouting workshop to alleviate operator's intensity of labour, promote work efficiency.
Drawings
Fig. 1 is the utility model discloses an engine crankshaft phase deviation rapid survey frock's total picture.
Fig. 2 is the utility model discloses a structural schematic of engine crankshaft phase deviation rapid survey frock.
Fig. 3 is a schematic view of the service condition of the engine crankshaft phase deviation rapid measurement tool of the present invention.
The figures are numbered: 1. a reference support; 2. a slider; 3. a stepped through hole; 4. a bolt; 5. a gantry support; 6. measuring a needle; 7. a through groove; 8. scale lines; 9. a scale reference; 10. a flywheel.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes and structures of the respective members, the mutual positions and connection relationships between the respective portions, the functions and operation principles of the respective portions, and the like.
Example 1:
the embodiment provides an engine crankshaft phase deviation rapid measurement tool which is simple in structure, low in manufacturing cost, convenient to operate, time-saving and labor-saving, so that the labor intensity of workers is reduced, the use of experimental resources is saved, and the working efficiency is improved.
As shown in fig. 1 and 2, the engine crankshaft phase deviation rapid measurement tool of the embodiment includes a reference support 1 and a slider 2 movably mounted on the reference support 1, wherein the reference support 1 and the slider 2 are provided with a fit arc surface which is mutually attached to enable the slider 2 to freely slide along the reference support 1, and the center of circle of the fit arc surface is located on the axis of the engine crankshaft to be measured.
The reference support 1 is provided with a fixing structure for detachably assembling the reference support 1 to the engine gantry support, the fixing structure is composed of a step through hole 3 arranged on the reference support 1 and an M5 hexagon socket head cap screw 4 penetrating through the step through hole 3, the reference support 1 is placed on the gantry support 5, the screw 4 is screwed into a crankshaft position sensor mounting hole of the gantry support 5, and the reference support 1 can be fixed at a preset position of the gantry support 5. After the measurement is finished, the bolt 4 is screwed out, and the measurement tool can be taken down from the gantry support 5.
The middle part of the sliding block 2 is provided with a through screw hole, a measuring pin 6 is arranged through the screw hole, and the middle part of the reference support 1 is provided with a through groove 7 for the measuring pin 6 to pass through. One end of the measuring needle 6 facing the reference support 1 is of a conical structure, the other end of the measuring needle is a cylindrical handle, and patterns can be arranged on the outer surface of the handle to facilitate holding and operation of an operator.
The scale mark 8 is marked on the reference support 1, and the scale reference 9 in a triangular shape is marked on the slide block 2. When the center of the slide block 2 (i.e. the measuring needle 6) is positioned at the central position of the reference support 1, the scale reference 9 of the slide block 2 is opposite to the zero scale of the scale mark 8 of the reference support 1.
As shown in fig. 3, during measurement, firstly, the reference bracket 1 is fixed at the position of the crankshaft position sensor mounting hole of the gantry bracket 5 by using a fixing structure, the measuring pin 6 is inserted into the through groove 7 of the reference bracket 1, the length of the measuring pin 6 exposed out of the reference bracket 1 is adjusted by rotating the measuring pin 6, the head sharp point of the measuring pin 6 is ensured to be slightly contacted with the falling edge of the signal tooth of the flywheel 10, the slide block 2 is slid on the reference bracket 1 until the head sharp point of the measuring pin 6 is slightly contacted with the falling edge of the signal tooth of the flywheel 10, and at this time, the difference value between the scale of the slide block 2 and the zero scale of the reference bracket 1 is read, namely, the crankshaft phase mechanical deviation of the engine is obtained. After the measurement is finished, the measuring pin 6 is firstly separated from the contact with the signal teeth of the flywheel 10, then the sliding block 2 and the measuring pin 6 are taken down from the reference support 1, then the measuring pin 6 is screwed out of the sliding block 2 and is placed separately from the sliding block 2, and finally the reference support 1 is taken down from the gantry support 5.
The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.
Claims (4)
1. A quick measuring tool for phase deviation of an engine crankshaft is characterized by comprising a reference bracket and a sliding block movably arranged on the reference bracket; the datum bracket is provided with a fixing structure for detachably assembling the datum bracket to the engine gantry bracket; the slider is equipped with and link up the screw to install the survey pin through this screw, the benchmark support is equipped with the logical groove that supplies the survey pin to pass.
2. The engine crankshaft phase deviation rapid measurement tool according to claim 1, wherein scale marks are marked on the reference support, and scale references are marked on the slide block.
3. The tool for rapidly measuring the phase deviation of the engine crankshaft according to claim 1 or 2, wherein the fixing structure is composed of a step through hole arranged on the reference support and a bolt penetrating through the step through hole.
4. The tool for rapidly measuring the phase deviation of the engine crankshaft according to claim 1 or 2, wherein the reference support and the sliding block are provided with matching arc surfaces which are attached to each other so that the sliding block can freely slide along the reference support, and the center of the matching arc surfaces is located on the axis of the engine crankshaft to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120001607.7U CN214308527U (en) | 2021-01-04 | 2021-01-04 | Engine crankshaft phase deviation rapid measurement tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120001607.7U CN214308527U (en) | 2021-01-04 | 2021-01-04 | Engine crankshaft phase deviation rapid measurement tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214308527U true CN214308527U (en) | 2021-09-28 |
Family
ID=77822268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120001607.7U Active CN214308527U (en) | 2021-01-04 | 2021-01-04 | Engine crankshaft phase deviation rapid measurement tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214308527U (en) |
-
2021
- 2021-01-04 CN CN202120001607.7U patent/CN214308527U/en active Active
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