CN205936849U - Use diesel engine of built -in crankshaft rotating speed sensor - Google Patents
Use diesel engine of built -in crankshaft rotating speed sensor Download PDFInfo
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- CN205936849U CN205936849U CN201620919852.5U CN201620919852U CN205936849U CN 205936849 U CN205936849 U CN 205936849U CN 201620919852 U CN201620919852 U CN 201620919852U CN 205936849 U CN205936849 U CN 205936849U
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- diesel engine
- bent axle
- speed sensor
- trigger wheel
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- Ignition Installations For Internal Combustion Engines (AREA)
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Abstract
The utility model provides an use diesel engine of built -in crankshaft rotating speed sensor, organism including diesel engine, the bent axle has been installed in the organism, the both ends of bent axle are passed through the bearing and are articulated on the organism, the one end shaping of bent axle has flange, the shaping had the keyway on the bent axle closed on the axle body of flange one end, it has the parallel key to peg graft in the keyway, annular connecting seat plug bush is connected on the bent axle and through the parallel key, through bolt fixedly connected with trigger wheel on the side end face of connecting seat, trigger wheel is located the organism, speed sensor has been installed on trigger wheel's the outside, speed sensor passes through support and fix with screw on the inner wall of organism, speed sensor passes through pencil and electric control element electricity connection mutually, pencil and electric control element distribute in the outside of organism, on electric control element's the organism outer wall. It embeds trigger wheel to on the inside bent axle of diesel engine to the speed sensor of corresponding built -in detection reduces influenced by diesel engine external factors, guarantees the normal work of diesel engine.
Description
Technical field：
The utility model is related to the technical field of diesel engine, more specifically to a kind of application built-in speed of crankshaft sensing
The diesel engine of device.
Background technology：
Diesel engine is experiencing with automatically controlled the 3rd technology leap turning to core of fuel system, diesel electric-controlled fuel oil spray
System of penetrating mainly is made up of sensor, electric control element (ECU) and actuator three part.ECU technology is the core of diesel electric-controlledization
One of heart technology, the signal such as the phase place of its collection diesel engine, rotating speed, fuel pressure, throttle position, temperature, by certain meter
Calculation method, draws the parameter of pump oil and oil spout, and drives corresponding actuator work, to the distributive value of each atomizer, oil spout
Moment carries out precise control, makes the fuel economy of diesel engine and dynamic property reach optimum balance.And in ECU, speed of crankshaft
Sensor and camshaft phase sensor signal are the bases of whole electronic controlled diesel work schedule, the rotating speed of diesel engine, oil spout
Phase place and sentence cylinder signal etc. and all processed by this two sensor calculating and draw.
Tach signal collection by the trigger wheel (halved crankshaft belt pulley has multiple tooth or hypodontia above) rotating with relative
Static crankshaft rotational speed sensor two parts composition.Crankshaft rotational speed sensor is by one group of induction coil, soft iron core, permanent magnet structure
Become.When diesel engine runs, the gap period between trigger wheel and crankshaft rotational speed sensor changes, and magnetic flux can be with same
Mechanical periodicity, thus induce the voltage signal of approximate sine wave in coil.Voltage signal feeds back to ECU by wire harness, leads to
Cross certain computational methods, draw the rotating speed of diesel engine, calculate fuel delivery per cycle, and crankshaft-position signal is provided, so that
ECU makes accurate control to injection timing.
And traditional electric-control motor, trigger wheel is typically mounted on crank pulley, crank pulley generally according to
Bent axle stretches out on the adpting flange of engine, but when diesel engine works, trigger wheel is affected very big, such as foreign matter appearance by extraneous factor
Easily it is wound around trigger wheel, then ECU does not easily collect crankshaft signal, will result in engine and shut down or abnormal operating.
Utility model content：
The purpose of this utility model is aiming at the deficiency of prior art, and provides a kind of built-in speed of crankshaft of application and pass
The diesel engine of sensor, trigger wheel is built on the bent axle of diesel engines for it, and the speed probe of accordingly built-in detection, subtracts
Affected the normal work it is ensured that diesel engine by diesel engine extraneous factor less.
Technology solution of the present utility model is as follows：
A kind of diesel engine applying built-in crankshaft rotational speed sensor, including the body of diesel engine, installs in body
There is bent axle, bearing hinge connection is passed through on body in the two ends of bent axle, and one end of bent axle forms adpting flange, and bent axle closes on connection method
Keyway is formed on the axle body of blue one end, in keyway, is plugged with flat key, the connecting seat sleeve of annular and passes through flat key on bent axle
Connect, the side end face of connecting seat has been bolted to connection trigger wheel, trigger wheel is located in body, on the outside of trigger wheel
It is installed on speed probe, speed probe is fixed on the inwall of body by support and screw, speed probe passes through line
Bundle and electric control element are electrically connected, and wire harness and electric control element are distributed in the outside of body, on the body outer wall of electric control element.
The section of described connecting seat is in step, and trigger wheel is fixed on the step surface of connecting seat, and connecting seat is by semicircle
Upper ring body and lower ring body composition, the inner ring of upper ring body formed the keyway being matched with flat key, the two ends shaping of upper ring body
There is screwed hole, the two ends of lower ring body form stepped hole, and upper ring body and lower ring body are bolted to connection.
Described trigger wheel is made up of annular chassis and external toothing, the diameter of the diameter of chassis inner ring and external toothing inner ring
Equal, the diameter of external toothing outer ring is less than the diameter of chassis outer ring, the diameter with diameter greater than adpting flange of chassis inner ring.
The jack of speed probe is offered on the body of described diesel engine, speed probe is inserted in body
Jack is simultaneously tightly connected, and the wire harness on speed probe is placed in bunch support, and bunch support is fixed on the outer wall of body.
Described speed probe adopts magnetic induction sensor, and speed probe is by induction coil, soft iron core, permanent magnet
With shell composition.
The beneficial effects of the utility model are：
1st, trigger wheel is built on the bent axle of diesel engines for it, and the speed probe of accordingly built-in detection, reduces
Affected the normal work it is ensured that diesel engine by diesel engine extraneous factor.
2nd, trigger wheel that it adopts and the installing mechanism of bent axle facilitate the installation and removal of trigger wheel, are easy to trigger wheel more
Change maintenance.
Brief description：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the cross-sectional schematic of the utility model connecting seat bent axle radial direction.
In figure：1st, body；2nd, bent axle；21st, adpting flange；3rd, connecting seat；31st, upper ring body；32nd, lower ring body；4th, trigger wheel；
41st, chassis；42nd, external toothing；5th, flat key；6th, speed probe；7th, wire harness；8th, electric control element；9th, bunch support.
Specific embodiment：
Embodiment：As shown in Fig. 1,2, a kind of diesel engine applying built-in crankshaft rotational speed sensor, starts including diesel engine
The body 1 of machine, is installed on bent axle 2 in body 1, bearing hinge connection is passed through on body 1 in the two ends of bent axle 2, one end shaping of bent axle 2
There is adpting flange 21, bent axle 2 closes on and forms keyway on the axle body of adpting flange 21 one end, in keyway, be plugged with flat key 5, annular
Connecting seat 3 sleeve connect on bent axle 2 and by flat key 5, the side end face of connecting seat 3 has been bolted to connection triggering
Wheel 4, trigger wheel 4 be located at body 1 in, the outside of trigger wheel 4 is installed on speed probe 6, speed probe 6 pass through support and
Screw is fixed on the inwall of body 1, and speed probe 6 passes through wire harness 7 and electric control element 8 and is electrically connected, wire harness 7 and automatically controlled unit
Part 8 is distributed in the outside of body 1, on body 1 outer wall of electric control element 8.
The section of described connecting seat 3 is in step, and trigger wheel 4 is fixed on the step surface of connecting seat 3, and connecting seat 3 is by partly
Circular upper ring body 31 and lower ring body 32 form, and the inner ring of upper ring body 31 is formed the keyway being matched with flat key 5, upper ring body
31 two ends form screwed hole, and the two ends of lower ring body 32 form stepped hole, and upper ring body 31 and lower ring body 32 pass through bolt admittedly
Fixed connection.
Described trigger wheel 4 is made up of annular chassis 41 and external toothing 42, the diameter of chassis 41 inner ring and external toothing 42
The equal diameters of inner ring, the diameter of external toothing 42 outer ring is less than the diameter of chassis 41 outer ring, chassis 41 inner ring with diameter greater than even
The diameter of acting flange 21.
The jack of speed probe 6 is offered on the body 1 of described diesel engine, speed probe 6 is inserted in machine
The jack of body 1 is simultaneously tightly connected, and the wire harness 7 on speed probe 6 is placed in bunch support 9, and bunch support 9 is fixed on body
On 1 outer wall.
Described speed probe 6 adopts magnetic induction sensor, and speed probe 6 is by induction coil, soft iron core, permanent magnetic
Iron and shell composition.
Operation principle：Main technical point of the present utility model is that diesel engine adopts built-in crankshaft rotational speed sensor, will be former
Trigger wheel 4 movement being first installed on crank pulley is installed on the bent axle 2 of diesel engines, it is to avoid trigger wheel is external
When, because foreign matter is wound around trigger wheel, do not collect the problem that crankshaft signal leads to diesel engine operation exception.Built-in speed probe
6 when diesel engine runs, the gap generating period change and trigger wheel 4 between, magnetic flux can with same mechanical periodicity, from
And the induction coil in speed probe 6 induces the voltage signal of approximate sine wave.Voltage signal feeds back to electricity by wire harness 7
Control element 8 (ECU), ECU, by certain computational methods, draws the rotating speed of diesel engine, calculates fuel delivery per cycle, and provide song
Shaft position signal, so that ECU makes accurate control to injection timing.
Claims (5)
1. a kind of diesel engine applying built-in crankshaft rotational speed sensor, the body (1) including diesel engine, in body (1)
It is installed on bent axle (2), bearing hinge connection is passed through on body (1) in the two ends of bent axle (2), and one end of bent axle (2) forms connection method
Blue (21) it is characterised in that：Bent axle (2) closes on and forms keyway on the axle body of adpting flange (21) one end, is plugged with keyway
Flat key (5), connecting seat (3) sleeve of annular above and by flat key (5) connects in bent axle (2), logical on the side end face of connecting seat (3)
Cross bolt and be fixedly connected with trigger wheel (4), trigger wheel (4) is located in body (1), and the outside of trigger wheel (4) is installed on rotating speed
Sensor (6), speed probe (6) is fixed on the inwall of body (1) by support and screw, and speed probe (6) passes through
Wire harness (7) and electric control element (8) are electrically connected, and wire harness (7) and electric control element (8) are distributed in the outside of body (1), electric control element
(8) on body (1) outer wall.
2. according to claim 1 a kind of apply built-in crankshaft rotational speed sensor diesel engine it is characterised in that：Described company
The section of joint chair (3) is in step, and trigger wheel (4) is fixed on the step surface of connecting seat (3), and connecting seat (3) is by semicircular
Upper ring body (31) and lower ring body (32) composition, the inner ring of upper ring body (31) is formed the keyway being matched with flat key (5), upper ring
The two ends of body (31) form screwed hole, and the two ends of lower ring body (32) form stepped hole, upper ring body (31) and lower ring body (32)
It is bolted to connection.
3. according to claim 1 a kind of apply built-in crankshaft rotational speed sensor diesel engine it is characterised in that：Described
Trigger wheel (4) is made up of annular chassis (41) and external toothing (42), the diameter of chassis (41) inner ring and external toothing (42) inner ring
Equal diameters, the diameter of external toothing (42) outer ring is less than the diameter of chassis (41) outer ring, chassis (41) inner ring with diameter greater than
The diameter of adpting flange (21).
4. according to claim 1 a kind of apply built-in crankshaft rotational speed sensor diesel engine it is characterised in that：Described bavin
The jack of speed probe (6) is offered on the body (1) of oil machine engine, speed probe (6) is inserted in inserting of body (1)
Hole is simultaneously tightly connected, and the wire harness (7) on speed probe (6) is placed in bunch support (9), and bunch support (9) is fixed on machine
On the outer wall of body (1).
5. according to claim 1 a kind of apply built-in crankshaft rotational speed sensor diesel engine it is characterised in that：Described
Speed probe (6) adopts magnetic induction sensor, and speed probe (6) is by induction coil, soft iron core, permanent magnet and shell group
Become.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620919852.5U CN205936849U (en) | 2016-08-22 | 2016-08-22 | Use diesel engine of built -in crankshaft rotating speed sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620919852.5U CN205936849U (en) | 2016-08-22 | 2016-08-22 | Use diesel engine of built -in crankshaft rotating speed sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205936849U true CN205936849U (en) | 2017-02-08 |
Family
ID=57950858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620919852.5U Active CN205936849U (en) | 2016-08-22 | 2016-08-22 | Use diesel engine of built -in crankshaft rotating speed sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205936849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238732A (en) * | 2018-11-07 | 2019-01-18 | 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 |
| CN113217606A (en) * | 2021-05-10 | 2021-08-06 | 温州瑞奇汽车电子有限公司 | Crankshaft sensor |
-
2016
- 2016-08-22 CN CN201620919852.5U patent/CN205936849U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238732A (en) * | 2018-11-07 | 2019-01-18 | 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 |
| CN109238732B (en) * | 2018-11-07 | 2024-05-10 | 河南柴油机重工有限责任公司 | Quick detachable rotating speed measuring device for diesel engine crankshaft |
| CN113217606A (en) * | 2021-05-10 | 2021-08-06 | 温州瑞奇汽车电子有限公司 | Crankshaft sensor |
| CN113217606B (en) * | 2021-05-10 | 2022-08-12 | 浙江瑞奇汽车电子有限公司 | Crankshaft sensor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |