CN203130255U - Crankshaft rotating speed sensing mechanism - Google Patents
Crankshaft rotating speed sensing mechanism Download PDFInfo
- Publication number
- CN203130255U CN203130255U CN 201320007832 CN201320007832U CN203130255U CN 203130255 U CN203130255 U CN 203130255U CN 201320007832 CN201320007832 CN 201320007832 CN 201320007832 U CN201320007832 U CN 201320007832U CN 203130255 U CN203130255 U CN 203130255U
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- Prior art keywords
- bent axle
- rear oil
- oil seal
- crankshaft
- axle rear
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a crankshaft rotating speed sensing mechanism which is simplified in structure and reduces external environmental influences. The crankshaft rotating speed sensing mechanism comprises a rotating speed sensor. The rotating speed sensor is installed on an air cylinder body. A crankshaft cavity is formed inside the air cylinder body. A crankshaft rear oil sealing port is formed in the air cylinder body. A crankshaft is arranged inside the crankshaft cavity. A flange disc is arranged at one end of the crankshaft. The flange disc is arranged at the position of the crankshaft rear oil sealing port. Signal teeth are arranged on the flange disc. A rotating speed sensor insertion hole is formed in the crankshaft rear oil sealing port. The rotating speed sensor is installed in the rotating speed sensor insertion hole. The crankshaft rotating speed sensing mechanism has the advantages of simplifying the structure, reducing the effects of parts, reducing the weight of the whole mechanism to a certain degree, reducing the external environment influences, allowing the working environment to be cleaner, reducing interference caused by mud and dust on sensor signals, and being simple in structure and convenient to operate.
Description
Technical field
The utility model relates to the motor correlative technology field, refers in particular to a kind of speed of crankshaft sensing mechanism.
Background technique
At present, engine design is towards miniaturization, modular trend development.Engine crankshaft position (rotating speed) signal panel of general usefulness need to cause flywheel structure comparatively complicated at the peripheral processing of flywheel one ring signal tooth; In addition, speed probe generally is installed in the motor rear end and exposes in the middle of ambient air, and in rugged environment comparatively, sensor surface deposits impurity such as earth, dust easily and causes sensor signal to descend, and regulates and control motor thereby influence ECU.
Chinese patent notice of authorization number: CN 201125785Y, October 1 2008 notice of authorization day, a kind of engine crankshaft speed probe preposition structure is disclosed, comprise crankshaft rotational speed sensor, relating generally to part has: engine body, gear chamber, the crankshaft rotational speed sensor support, crankshaft rotational speed sensor, damper assembly, by originally crankshaft rotational speed sensor being contained on the flywheel casing of motor rear end, the signal gear ring is contained on the flywheel, change into the crankshaft rotational speed sensor support is contained on the gear chamber of diesel-engine body front end, crankshaft rotational speed sensor is contained on the crankshaft rotational speed sensor support, and damper assembly is contained on the bent axle head of front end, directly selects original flywheel and flywheel casing when joining car for use, need not be specially for sensor installation and signal gear ring design flywheel casing and flywheel, saved the complete machine cost greatly.The deficiency of this model utility is that this structure only is suitable on the diesel engine, and complex structure, has increased the effect of part, has strengthened the weight of complete machine to a certain extent; Because speed probe is contained on the crankshaft rotational speed sensor support, and in rugged environment comparatively, sensor surface deposits impurity such as earth, dust easily, cause sensor signal to descend in addition, regulate and control motor thereby influence ECU.
The model utility content
The utility model is in order to overcome speed of crankshaft sensing mechanism complex structure in the prior art and to be subject to the external environment influence and the deficiency that causes sensor signal to descend, a kind of simplified structure is provided and has reduced the speed of crankshaft sensing mechanism of external environment influence.
To achieve these goals, the utility model is by the following technical solutions:
A kind of speed of crankshaft sensing mechanism, comprise speed probe, described speed probe is installed on the cylinder block, be provided with crankshaft cavity in the described cylinder block, described cylinder block is provided with bent axle Rear oil seal mouth, be provided with bent axle in the described crankshaft cavity, described bent axle one end is provided with flange plate, described flange plate places bent axle Rear oil seal mouth place, described flange plate is provided with signal teeth, described bent axle Rear oil seal mouth is provided with the speed probe jack, and described speed probe is installed on the speed probe jack.
This mechanism is integrated in signal teeth on the flange plate of bent axle one end, compared with at the peripheral processing of flywheel one ring signal tooth, has played simplified structure, reduces the effect of part, and has alleviated the weight of complete machine to a certain extent; In addition, speed probe is installed in the crankshaft cavity by the speed probe jack on the bent axle Rear oil seal mouth, working environment is cleaner, has reduced extraneous earth, dust for the interference of sensor signal, reaches simplified structure and reduces the purpose of external environment influence.
As preferably, described bent axle Rear oil seal mouth place is provided with the bent axle Rear oil seal lid that matches, described bent axle Rear oil seal lid removably connects with bent axle Rear oil seal mouth, described bent axle Rear oil seal covers and is provided with because the flange plate mouth of locating flange dish, cover locating flange dish preferably by the bent axle Rear oil seal, make that the signal teeth on flange plate can be good fit with speed probe, bent axle Rear oil seal lid removably connects with bent axle Rear oil seal mouth in addition, can install, dismantle and safeguard this mechanism easily.
As preferably, described cylinder block is provided with the speed probe fixed hole, described speed probe is threaded with cylinder block by the speed probe fixed hole, and the fixed rotating speed sensor avoids influencing because of the displacement that speed probe produces the acceptance of signal preferably.
As preferably, described bent axle Rear oil seal mouth and bent axle Rear oil seal cover and are provided with some positioning holes, described bent axle Rear oil seal lid is positioned on the bent axle Rear oil seal mouth by locating stud, by cooperating of locating stud and positioning hole, can guarantee that signal teeth and speed probe are complementary, and improve the accuracy of this mechanism.
As preferably, described bent axle Rear oil seal mouth and bent axle Rear oil seal cover and are provided with some bolts hole, and described bent axle Rear oil seal lid is threaded with bent axle Rear oil seal mouth, is convenient to this mechanism is installed, dismantles and safeguards, and is simple in structure, easy to operate.
The beneficial effects of the utility model are: simplified structure, reduce the effect of part, and alleviated the weight of complete machine to a certain extent; Reduce the external environment influence, make working environment cleaner, reduced extraneous earth, dust for the interference of sensor signal, simple in structure, easy to operate.
Description of drawings
Fig. 1 is a kind of structure explosive view of the present utility model.
Among the figure: 1. cylinder block, 2. bent axle, 3. speed probe, 4. crankshaft cavity, 5. bent axle Rear oil seal mouth, 6. flange plate, 7. signal teeth, 8. speed probe jack, 9. speed probe fixed hole, 10. locating stud, 11. bent axle Rear oil seal bonnet bolts, 12. the speed probe bolt, 13. bent axle Rear oil seals lid.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Among the embodiment as described in Figure 1, a kind of speed of crankshaft sensing mechanism, comprise speed probe 3, speed probe 3 is installed on the cylinder block 1, be provided with crankshaft cavity 4 in the cylinder block 1, cylinder block 1 is provided with bent axle Rear oil seal mouth 5, be provided with bent axle 2 in the crankshaft cavity 4, bent axle 2 one ends are provided with flange plate 6, and flange plate 6 places bent axle Rear oil seal mouth 5 places, and flange plate 6 is provided with signal teeth 7, bent axle Rear oil seal mouth 5 is provided with speed probe jack 8, speed probe 3 is installed on the speed probe jack 8, and cylinder block 1 is provided with speed probe fixed hole 9, and speed probe 3 matches by speed probe fixed hole 9 and speed probe bolt 12 and is threaded with cylinder block 1.Bent axle Rear oil seal mouth 5 places are provided with the bent axle Rear oil seal lid 13 that matches, and bent axle Rear oil seal lid 13 removably connects with bent axle Rear oil seal mouth 5, and bent axle Rear oil seal lid 13 is provided with because the flange plate mouth of locating flange dish 6.Wherein: bent axle Rear oil seal mouth 5 and bent axle Rear oil seal lid 13 is provided with two positioning holes, and bent axle Rear oil seal lid 13 is positioned on the bent axle Rear oil seal mouth 5 by locating stud 10; Bent axle Rear oil seal mouth 5 and bent axle Rear oil seal lid 13 are provided with five bolts hole, bolt hole is evenly distributed on the side of bent axle Rear oil seal mouth 5 and bent axle Rear oil seal lid 13, and bent axle Rear oil seal lid 13 is threaded by bent axle Rear oil seal bonnet bolt 11 with bent axle Rear oil seal mouth 5.
At first, speed probe 3 is inserted in the speed probe jack 8, is fixed on the cylinder block 1 by speed probe fixed hole 9.Then, bent axle 2 is placed in the crankshaft cavity 4 of cylinder block 1, flange plate 6 on bent axle 2 one ends is complementary with the flange plate mouth that the bent axle Rear oil seal covers on 13, when the signal teeth 7 on the flange plate 6 and speed probe 3 are corresponding, bent axle Rear oil seal lid 13 is positioned on the bent axle Rear oil seal mouth 5 by locating stud 10.At last, by bent axle Rear oil seal bonnet bolt 11 bent axle Rear oil seal lid 13 is fixed on the bent axle Rear oil seal mouth 5.
Claims (5)
1. speed of crankshaft sensing mechanism, it is characterized in that, comprise speed probe (3), described speed probe (3) is installed on the cylinder block (1), be provided with crankshaft cavity (4) in the described cylinder block (1), described cylinder block (1) is provided with bent axle Rear oil seal mouth (5), be provided with bent axle (2) in the described crankshaft cavity (4), described bent axle (2) one ends are provided with flange plate (6), described flange plate (6) places bent axle Rear oil seal mouth (5) to locate, described flange plate (6) is provided with signal teeth (7), described bent axle Rear oil seal mouth (5) is provided with speed probe jack (8), and described speed probe (3) is installed on the speed probe jack (8).
2. a kind of speed of crankshaft sensing mechanism according to claim 1, it is characterized in that, described bent axle Rear oil seal mouth (5) locates to be provided with the bent axle Rear oil seal lid (13) that matches, described bent axle Rear oil seal lid (13) removably connects with bent axle Rear oil seal mouth (5), and described bent axle Rear oil seal lid (13) is provided with because the flange plate mouth of locating flange dish (6).
3. a kind of speed of crankshaft sensing mechanism according to claim 1, it is characterized in that, described cylinder block (1) is provided with speed probe fixed hole (9), and described speed probe (3) is threaded with cylinder block (1) by speed probe fixed hole (9).
4. a kind of speed of crankshaft sensing mechanism according to claim 2, it is characterized in that, described bent axle Rear oil seal mouth (5) and bent axle Rear oil seal lid (13) are provided with some positioning holes, and described bent axle Rear oil seal lid (13) is positioned on the bent axle Rear oil seal mouth (5) by locating stud (10).
5. according to claim 2 or 4 described a kind of speed of crankshaft sensing mechanisms, it is characterized in that, described bent axle Rear oil seal mouth (5) and bent axle Rear oil seal lid (13) are provided with some bolts hole, and described bent axle Rear oil seal lid (13) is threaded with bent axle Rear oil seal mouth (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320007832 CN203130255U (en) | 2013-01-07 | 2013-01-07 | Crankshaft rotating speed sensing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320007832 CN203130255U (en) | 2013-01-07 | 2013-01-07 | Crankshaft rotating speed sensing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130255U true CN203130255U (en) | 2013-08-14 |
Family
ID=48938245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320007832 Expired - Fee Related CN203130255U (en) | 2013-01-07 | 2013-01-07 | Crankshaft rotating speed sensing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130255U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323235A (en) * | 2020-03-10 | 2020-06-23 | 东风柳州汽车有限公司 | Power output detection device of internal combustion engine and mounting method |
-
2013
- 2013-01-07 CN CN 201320007832 patent/CN203130255U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323235A (en) * | 2020-03-10 | 2020-06-23 | 东风柳州汽车有限公司 | Power output detection device of internal combustion engine and mounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20140107 |