CN203551003U - Flywheel rotating speed measuring apparatus for automotive diesel engine - Google Patents
Flywheel rotating speed measuring apparatus for automotive diesel engine Download PDFInfo
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- CN203551003U CN203551003U CN201320586493.2U CN201320586493U CN203551003U CN 203551003 U CN203551003 U CN 203551003U CN 201320586493 U CN201320586493 U CN 201320586493U CN 203551003 U CN203551003 U CN 203551003U
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- flywheel
- diesel engine
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- rotating speed
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Abstract
The utility model relates to a flywheel rotating speed measuring apparatus for an automotive diesel engine. The flywheel rotating speed measuring apparatus comprises a gantry support fixed on a cylinder body of the diesel engine and a flywheel disposed on a crankshaft, and is characterized in that 60 uniformly distributed hole positions are arranged on an outer circumferential surface of the flywheel, and sensing holes are disposed in 58 of the 60 hole positions; the flywheel and the gantry support are provided with installation positioning pin holes corresponding to an upper stop point of a first cylinder of the diesel engine; a sensor support installation hole is disposed in the gantry support; a sensor support is disposed in the sensor support installation hole; a rotating speed sensor is fixed on the sensor support; and a collecting surface of the rotating sensor is corresponding to hole positions in the outer circumferential surface of the flywheel. The flywheel rotating speed measuring apparatus is simple in structure, can not only measure the rotating speed of the flywheel, but also precisely position the phase of the upper stop point during assembly, make a mutual reference to a signal detected by a cam position sensor, determine a specific position of a piston in the cylinder and provide data for injection timing, and thus is widely applicable to electronic injection diesel engines.
Description
Technical field
The utility model relates to a kind of Speed of Reaction Wheels, phase measurement device, especially a kind of diesel engine of vehicle Speed of Reaction Wheels measurement mechanism.
Background technology
Along with the development of internal-combustion engine technology, combustion motor requires all more and more higher to various aspects, economy and discharge also increasingly stringent.Rotation-speed measuring device is also the pith of internal combustion engine, and its reliability of operation is determining the life cycle of internal combustion engine to a great extent, and directly affects the serviceability of internal combustion engine.Rotation-speed measuring device can be measured the rotating speed of flywheel and measure the phase place of flywheel and the signal cross-reference that cam-position sensor records, and determines the particular location of piston in cylinder, for injection timing provides data gas.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of diesel engine of vehicle Speed of Reaction Wheels measurement mechanism is provided, simple in structure, can measure rotating speed, the phase place of flywheel.
The technical scheme providing according to the utility model, a kind of diesel engine of vehicle Speed of Reaction Wheels measurement mechanism, comprise the gantry support being fixed on cylinder of diesel engine and be installed on the flywheel on bent axle, it is characterized in that: position, 60 equally distributed holes is set on the periphery of described flywheel, and place, position, 58 holes arranges sensing hole therein; On described gantry support, be provided with sensor stand mounting hole, sensor installation support in sensor stand mounting hole, fixed rotating speed sensor on sensor stand, the collection surface of speed probe is corresponding with the position, hole on flywheel outer circumference surface.
Distance between position, hole on the collection surface of described speed probe and flywheel outer circumference surface is 0.5 ~ 0.8mm.
The installation dowel hole of corresponding diesel engine the first cylinder top dead centre is set on described flywheel and gantry support.
Diesel engine of vehicle Speed of Reaction Wheels measurement mechanism described in the utility model is simple in structure, not only can measure the rotating speed of flywheel, and can measure the phase place of flywheel, the signal cross-reference recording with cam-position sensor, determine the particular location of piston in cylinder, for injection timing provides data, be widely used in electronic injection diesel engine, belong to physical construction technical field.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As shown in Figure 1: described diesel engine of vehicle Speed of Reaction Wheels measurement mechanism comprises flywheel 1, gantry support 2, sensor stand 3, cylinder block 4, speed probe 5, sensing hole 6 etc.
As shown in Figure 1, the utility model comprises the gantry support 2 being fixed on cylinder of diesel engine 4 and is installed on the flywheel 1 on bent axle, and position, 60 equally distributed holes is set on the periphery of flywheel 1, and place, position, 58 holes arranges sensing hole 6 therein; On described gantry support 2, be provided with sensor stand mounting hole, sensor installation support 3 in sensor stand mounting hole, fixed rotating speed sensor 5 on sensor stand 3, the collection surface of speed probe 5 is corresponding with the position, hole on flywheel 1 outer circumference surface, and the distance between the position, hole on the collection surface of speed probe 5 and flywheel 1 outer circumference surface is 0.5 ~ 0.8mm.
Position, 60 holes on described flywheel 1 outer circumference surface has place, position, 2 holes that sensing hole is not set, and is to collect signal one-period pulse point as speed probe 5.The installation dowel hole of corresponding diesel engine the first cylinder top dead centre is set on described flywheel 1 and gantry support 2.
Installation steps of the present utility model:
(1) first cylinder block is placed on frock stand so that following installment work;
(2) bent axle is placed on to cylinder block inner chamber by top dead center position and the moment of torsion on request of the bolt on the bearing cap of fixed crankshaft is fixed after cylinder block is put well;
(3) bent axle is installed after again by direction on request of gantry support and hole bit alignment and connect and use hex bolts urgent with cylinder block on request;
(4) after bent axle and gantry support are installed, the rear end link position of flywheel is given prominence to beyond cylinder block, now the pilot hole of flywheel be connected with the fitted shaft of bent axle and carry out axial location, and the front mark " A " of flywheel rushes to outwardly, then by after position, flywheel hole and bent axle connecting hole centering, use 8 bolts by flywheel and bent axle on request moment of torsion fix;
(5) after above flywheel and gantry support all install, sensor stand is fixed on to (the definite location swap that will take into account wheel box upper sensor of sensor stand position, object is that sensing station and the position on engine on wheel box is unified) on gantry support;
(6) sensor stand just can be fixed on speed probe on speed probe support and with trip bolt and fix after installing.The collection bottom surface of speed probe and the cylindrical of flywheel should keep the space length of 0.5 ~ 0.8mm, if the cylindrical of speed probe and flywheel is crossed when near, can adopt pad to regulate height, in order to avoid flywheel has oval phenomenon and speed probe interference to collide when rotating).
Diesel engine of vehicle Speed of Reaction Wheels measurement mechanism described in the utility model has following effect: 1, detect engine speed; 2, detect piston top dead center position; 3, detect for controlling the top dead centre signal of igniting; 4, for the first cylinder top dead centre signal of control sequence oil spout.
Claims (2)
1. a diesel engine of vehicle Speed of Reaction Wheels measurement mechanism, comprise the gantry support (2) being fixed on cylinder of diesel engine (4) and be installed on the flywheel (1) on bent axle, at the upper fixed rotating speed sensor (5) of sensor stand (3), the collection surface of speed probe (5) is corresponding with the position, hole on flywheel (1) outer circumference surface;
It is characterized in that: position, 60 equally distributed holes is set on the periphery of described flywheel (1), and place, position, 58 holes arranges sensing hole (6) therein; On described gantry support (2), be provided with sensor stand mounting hole, sensor installation support (3) in sensor stand mounting hole, arranges the installation dowel hole of corresponding diesel engine the first cylinder top dead centre on described flywheel (1) and gantry support (2).
2. diesel engine of vehicle Speed of Reaction Wheels measurement mechanism as claimed in claim 1, is characterized in that: the distance between the position, hole on the collection surface of described speed probe (5) and flywheel (1) outer circumference surface is 0.5 ~ 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586493.2U CN203551003U (en) | 2013-09-22 | 2013-09-22 | Flywheel rotating speed measuring apparatus for automotive diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586493.2U CN203551003U (en) | 2013-09-22 | 2013-09-22 | Flywheel rotating speed measuring apparatus for automotive diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551003U true CN203551003U (en) | 2014-04-16 |
Family
ID=50469102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320586493.2U Expired - Fee Related CN203551003U (en) | 2013-09-22 | 2013-09-22 | Flywheel rotating speed measuring apparatus for automotive diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551003U (en) |
-
2013
- 2013-09-22 CN CN201320586493.2U patent/CN203551003U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20200922 |