CN202305549U - Structure for outputting rotating speed signal of automobile engine - Google Patents
Structure for outputting rotating speed signal of automobile engine Download PDFInfo
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- CN202305549U CN202305549U CN2011204124378U CN201120412437U CN202305549U CN 202305549 U CN202305549 U CN 202305549U CN 2011204124378 U CN2011204124378 U CN 2011204124378U CN 201120412437 U CN201120412437 U CN 201120412437U CN 202305549 U CN202305549 U CN 202305549U
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- bent axle
- rotating speed
- automobile engine
- signal panels
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Abstract
The utility model provides a structure for outputting a rotating speed signal of an automobile engine, and solves the problems that the conventional structure for outputting the rotating speed signal of the automobile engine is inconvenient to mount, and is connected infirmly. The structure is arranged between a belt wheel and an air cylinder body, and comprises a timing chain cover, a signal disk arranged between the air cylinder body and the timing chain cover, a rotating speed sensor which is connected to the timing chain cover and positioned on the outer side of the signal disk, a limiting structure I for limiting the axial movement of the signal disk and a limiting structure II for limiting the circumferential rotation of the signal disk. The signal disk and the sensor are arranged in the timing chain cover, so that a phenomenon that the signal disk and the sensor are polluted by dust is avoided, and the stability of signal extraction of the sensor is improved; according to limitation of a stop shoulder and a shaft sleeve, the signal disk is fixed relative to the axial direction of a crank shaft; the signal disk is connected with the crank shaft through a positioning pin or a key, so that the signal disk is fixed relative to the circumferential direction of the crank shaft; and furthermore, the structure for outputting the rotating speed signal of the automobile engine is simple, is convenient to assemble and disassemble, and is used reliably because the signal disk cannot loosen during use.
Description
Technical field
The utility model relates to a kind of export structure of engine rotational speed signal, belongs to technical field of engines.
Background technology
The export structure of existing engine rotational speed signal is arranged in the rear end of engine crankshaft; Generally comprise flywheel and sensor; Sensor changes through the backlash between detecting sensor and the signal teeth above the flywheel; Produce electric signal and export to control module, by the rotating speed of control module analysis and definite engine.But along with the high speed development of automobile industry, automobile more and more towards the electronization development, particularly have higher requirement by succeeding in developing to the export structure of engine rotational speed signal of hybrid vehicle.Because the ISG motor of existing automobile need take the space of the flywheel assembly and the clutch of engine assembly, cause engine management system to read the ten minutes difficulty that engine rotational speed signal becomes at the flywheel ring gear place.
In order to address the above problem; Existing general solution is the front end that the export structure of engine rotational speed signal is arranged in engine crankshaft, discloses a kind of engine rotational speed signal extraction element like Chinese utility model patent [patent No. ZL200820144816.1].This device comprises belt pulley, signal panels, sensor stand and the sensor that is installed on the engine.Signal panels are located between engine timing chamber cap and the belt pulley; And be connected with belt pulley through screw; Sensor stand is installed on the engine timing chamber cap; Be parallel to the engine timing chamber cap on the sensor stand and over against the signal panels position sensor be installed, sensor is confirmed engine speed through extracting the signal panels rotating speed.The signal panels of this utility model are positioned at the chamber cap outside in correct time, so just become easily infected by dust, to such an extent as to the signal that sensor extracts is inaccurate; Signal panels couple together itself and belt pulley through screw; Thereby signal panels are fixed with respect to the bent axle circumferential and axial, but the rotating speed of belt pulley is very high in the engine, makes screw loosening easily; The signal that also can cause being extracted is inaccurate; If toner screw, even can cause damage to engine, give simultaneously and install and process and also make troubles.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of crankshaft front end, easy for installation and connect the export structure of firm rotating speed of automobile engine signal of being located at.
The purpose of the utility model can realize through following technical proposal: a kind of export structure of rotating speed of automobile engine signal; Be arranged between belt pulley and the cylinder block; Described belt pulley is connected in the end of bent axle; Described export structure comprise be enclosed within on the bent axle and and the chain guard in correct time that is connected of cylinder block, be arranged between the gentle cylinder body of chain guard in correct time and have some gear teeth signal panels, be connected on the chain guard in correct time and be positioned at the sensor in the signal panels outside; Described signal panels are enclosed within on the bent axle, on bent axle, are provided with the axially movable position limiting structure one of restricting signal dish, between signal panels and bent axle, are provided with the position limiting structure two that the restricting signal dish circumferentially rotates.
Signal panels in the export structure of this rotating speed of automobile engine signal are enclosed within on the bent axle, and are connected through position limiting structure one and position limiting structure two and bent axle, and signal panels and bent axle rotate synchronously when making the bent axle rotation like this.And be positioned at the rotating speed that changes of voids that the sensor outside the signal panels rotates the hour wheel between cog through signal panels is exported engine.Signal panels and sensor are arranged in the chain guard in correct time, have so just avoided being infected with dust, improve the stability that sensor extracts signal.
In the export structure of above-mentioned rotating speed of automobile engine signal, described bent axle is provided with shoulder block, and described shoulder block is between signal panels and cylinder block, and signal panels lean on shoulder block.Signal panels are leaned on shoulder block, make this end of signal panels form axial restraint.
In the export structure of above-mentioned rotating speed of automobile engine signal, described position limiting structure one comprises the axle sleeve that is enclosed within on the bent axle, and described axle sleeve is provided with between belt pulley and the signal panels, and an end roof pressure of axle sleeve is on signal panels.
In the export structure of above-mentioned rotating speed of automobile engine signal, be provided with timing sprocket and sleeve between described axle sleeve and the belt pulley, described timing sprocket one end leans on axle sleeve, and the other end leans on sleeve, and described sleeve roof pressure is on belt pulley.
Signal panels are arranged between shoulder block and the axle sleeve, and the moving axially of the effect restricting signal rim bent axle through timing sprocket and sleeve.
In the export structure of above-mentioned rotating speed of automobile engine signal, described signal panels are provided with and lack the recess of taking turns toothed portion.Sensor extracts the information of the recess on the signal panels, and the electric signal of the position of output characterization signal dish.
In the export structure of above-mentioned rotating speed of automobile engine signal, described position limiting structure two comprises the groove that is opened on the signal panels medial surface, described groove upwards have angle with described recess in week along signal panels.Can satisfy like this that Engine ECU is soft, the needs of hardware designs.
Change in the export structure of band signal in above-mentioned motor car engine, offer pin-and-hole on the described bent axle, and between described signal panels and bent axle, be provided with register pin, an end of described register pin is arranged in the pin-and-hole, and the other end stretches into groove.Register pin one end stretches in the pin-and-hole and is connected with bent axle formation, and the interior restricting signal dish of groove that the other end stretches into signal panels rotates relative to bent axle, is connected thereby signal panels and bent axle are formed circumferentially.。
As another kind of situation, in the export structure of above-mentioned rotating speed of automobile engine signal, offer keyway on the described bent axle, and between signal panels and bent axle, be provided with key, described key is positioned at groove and keyway simultaneously.Key also can be realized the circumferentially fixing of signal panels and bent axle.
Compared with prior art, the export structure of this rotating speed of automobile engine signal has the following advantages:
1, signal panels and sensor are arranged in the chain guard in correct time, have so just avoided being infected with dust, improve the stability that sensor extracts signal;
2, that signal panels and bent axle are formed is circumferentially fixing for the effect through pin or key, through shoulder block and axle sleeve effect make signal panels and bent axle formation axial restraint.This structure is not only simple in structure, installation, convenient disassembly; And signal panels can not become flexible in the use, use reliable;
3, through groove is set, pin-and-hole or keyway are set on bent axle on signal panels, and position through pin or key, can guarantee the installation site of signal panels and bent axle like this, phase place press-fits mistake when avoiding in the ordinary construction signal panels and crankshaft installed.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of export structure of this rotating speed of automobile engine signal.
Fig. 2 is the structural representation of second kind of embodiment of export structure of this rotating speed of automobile engine signal.
Fig. 3 is the structural representation of the export structure signal panels of written or printed documents rotating speed of automobile engine signal.
Among the figure, 1, belt pulley; 2, correct time chain guard; 3, sleeve; 4, sensor; 5, timing sprocket; 6, axle sleeve; 7, signal panels; 8, register pin; 9, cylinder block; 10, shoulder block; 11, key; 12, the gear teeth; 13, recess; 14, groove; 15, dynamic balancing technics hole; 16, remove the quality fabrication hole; 17, belt pulley bolt.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Embodiment one
Known that by shown in Figure 1 bent axle one end of this motor car engine is arranged in the cylinder block 9, the other end stretches out cylinder block 9 and has been provided with belt pulley 1 at this end, and belt pulley 1 is fixed on this end through belt pulley bolt 17.The export structure of tach signal is arranged between belt pulley 1 and the cylinder block 9, comprises that chain guard 2 in correct time, signal panels 7, sensor 4, restricting signal dish 7 are with respect to the axially movable position limiting structure one of bent axle and restricting signal dish 7 position limiting structure two with respect to the circumferential rotation of bent axle.
Know that by shown in Figure 3 the outer circumference surface of signal panels 7 is provided with some gear teeth 12 and the recess 13 that lacks gear teeth 12; The inner peripheral surface of signal panels 7 is provided with groove 14, and groove 14 upwards has angle with recess 13 in the week along signal panels, and Engine ECU is soft, the needs of hardware designs so that satisfy; The side of signal panels 7 be provided with guarantee signal panels 7 self dynamically balanced dynamic balancing technics hole 15 with reduce signal panels 7 moment of inertia remove quality fabrication hole 16.
Position limiting structure two comprises pin-and-hole of offering on groove 14, the bent axle and the register pin 8 that between signal panels 7 and bent axle, is provided with; Register pin 8 one ends stretch in the pin-and-hole and are connected with bent axle formation; The interior restricting signal dish of groove that the other end stretches into signal panels 7 rotates relative to bent axle; Be connected thereby signal panels 7 and bent axle are formed circumferentially, signal panels and bent axle rotated synchronously when bent axle was rotated.
Position limiting structure one comprises axle sleeve 6, timing sprocket 5, sleeve 3.Bent axle is provided with shoulder block 10; Shoulder block 10 is between signal panels 7 and cylinder block 9; Signal panels 7 are enclosed within on the bent axle and a side of signal panels is leaned on shoulder block 10; Make this end axial restraint of signal panels 7; Then with axle sleeve 6, timing sprocket 5, sleeve 3, correct time chain guard 2, belt pulley 1 and belt pulley bolt 17 be enclosed within order on the bent axle, through regulate belt pulley bolt 17 make signal panels 7, axle sleeve 6, timing sprocket 5, sleeve 3, correct time chain guard 2 and belt pulley 1 between closely cooperate, thereby make signal panels 7 with respect to the bent axle axial restraint.
At chain guard 2 installed inside speed probes 4 in correct time; The gear teeth 12 radially aligneds of the pivot of speed probe 4 and signal panels 7; And the tip clearance of the pivot of speed probe 4 and signal panels 7 remains between 0.5 millimeter to 1.5 millimeters, to guarantee to read the stability and the reliability of signal.During work; Behind the engine start; The rotation of bent axle drives the rotation of signal panels 7; Sensor 4 changes, extracts the information from recess 13 through the gap between the gear teeth 12 of detecting sensor 4 and signal panels 7, and the electric signal of output characterization signal dish 7 rotating speeds and position, and electric signal passes to electronic control component through wire harness and analyzes and control.
Embodiment two
Shown in 2 figure, can know; Present embodiment and embodiment one structure, function are close; Wherein present embodiment is the another kind of structure of position limiting structure two, and position limiting structure two comprises keyway of offering on groove 14, the bent axle and the key 11 that between signal panels 7 and bent axle, is provided with, and key 11 is positioned at groove 14 and keyway simultaneously; Utilize key 11 that groove 14 and keyway are coupled together, make signal panels 7 circumferentially fixing with respect to bent axle.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used belt pulley 1, correct time chain guard 2, sleeve 3, sensor 4, timing sprocket 5, axle sleeve 6, signal panels 7, register pin 8, cylinder block 9, shoulder block 10, key 11, the gear teeth 12, recess 13, groove 14, dynamic balancing technics hole 15, removed terms such as quality fabrication hole 16, belt pulley bolt 17 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (8)
1. the export structure of a rotating speed of automobile engine signal; Be arranged between belt pulley (1) and the cylinder block (9); Described belt pulley (1) is connected in the end of bent axle; It is characterized in that; Described export structure comprise be enclosed within on the bent axle and and the chain guard in correct time (2) that is connected of cylinder block (9), be arranged between chain guard in correct time (2) and the cylinder block (9) and have some gear teeth (12) signal panels (7), be connected the sensor (4) that signal panels (7) outside was gone up and be positioned to chain guard in correct time (2); Described signal panels (7) are enclosed within on the bent axle, on bent axle, are provided with the axially movable position limiting structure one of restricting signal dish (7), between signal panels (7) and bent axle, are provided with the position limiting structure two that restricting signal dish (7) circumferentially rotates.
2. the export structure of rotating speed of automobile engine signal according to claim 1 is characterized in that, described bent axle is provided with shoulder block (10), and described shoulder block (10) is positioned between signal panels (7) and the cylinder block (9), and signal panels (7) lean on shoulder block (10).
3. the export structure of rotating speed of automobile engine signal according to claim 2; It is characterized in that; Described position limiting structure one comprises the axle sleeve (6) that is enclosed within on the bent axle, and described axle sleeve (6) is provided with between belt pulley (1) and the signal panels (7), and an end roof pressure of axle sleeve (6) is on signal panels (7).
4. the export structure of rotating speed of automobile engine signal according to claim 3; It is characterized in that; Be provided with timing sprocket (5) and sleeve (3) between described axle sleeve (6) and the belt pulley (1); Described timing sprocket (5) one ends lean on axle sleeve (6), and the other end leans on sleeve (3), and described sleeve (3) roof pressure is on belt pulley (1).
5. according to the export structure of any described rotating speed of automobile engine signal of claim 1 to 4, it is characterized in that described signal panels (7) are provided with the recess (13) that lacks the gear teeth (12) part.
6. the export structure of rotating speed of automobile engine signal according to claim 5; It is characterized in that; Described position limiting structure two comprises the groove (14) that is opened on signal panels (7) medial surface, and described groove (14) upwards has angle with described recess (13) in the week along signal panels (7).
7. the export structure of rotating speed of automobile engine signal according to claim 6; It is characterized in that; Offer pin-and-hole on the described bent axle; And between described signal panels (7) and bent axle, be provided with register pin (8), an end of described register pin (8) is arranged in the pin-and-hole, and the other end stretches into groove (14).
8. the export structure of rotating speed of automobile engine signal according to claim 6 is characterized in that, offers keyway on the described bent axle, and between signal panels (7) and bent axle, is being provided with key (11), and described key (11) is positioned at groove (14) and keyway simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204124378U CN202305549U (en) | 2011-10-26 | 2011-10-26 | Structure for outputting rotating speed signal of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204124378U CN202305549U (en) | 2011-10-26 | 2011-10-26 | Structure for outputting rotating speed signal of automobile engine |
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| Publication Number | Publication Date |
|---|---|
| CN202305549U true CN202305549U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204124378U Expired - Fee Related CN202305549U (en) | 2011-10-26 | 2011-10-26 | Structure for outputting rotating speed signal of automobile engine |
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| CN (1) | CN202305549U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195828A (en) * | 2013-03-26 | 2013-07-10 | 奇瑞汽车股份有限公司 | Connecting structure and mounting and fixing method for crankshaft and timing sprocket and engine |
| CN106443044A (en) * | 2016-11-08 | 2017-02-22 | 天津雷沃发动机有限公司 | Rotating speed signal sensor assembly structure for engine |
| CN106885699A (en) * | 2017-02-20 | 2017-06-23 | 重庆长安汽车股份有限公司 | Engine timing system checks frock and method |
| CN111075905A (en) * | 2019-12-27 | 2020-04-28 | 岱高（苏州）汽车零部件有限公司 | Damping belt pulley |
| 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 |
| CN113533773A (en) * | 2021-08-17 | 2021-10-22 | 中国航发贵阳发动机设计研究所 | Aircraft engine fan rotational speed measuring device |
-
2011
- 2011-10-26 CN CN2011204124378U patent/CN202305549U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195828A (en) * | 2013-03-26 | 2013-07-10 | 奇瑞汽车股份有限公司 | Connecting structure and mounting and fixing method for crankshaft and timing sprocket and engine |
| CN103195828B (en) * | 2013-03-26 | 2015-12-09 | 奇瑞汽车股份有限公司 | The linkage structure of crankshaft timing sprocket, installing and fixing method and motor |
| CN106443044A (en) * | 2016-11-08 | 2017-02-22 | 天津雷沃发动机有限公司 | Rotating speed signal sensor assembly structure for engine |
| CN106885699A (en) * | 2017-02-20 | 2017-06-23 | 重庆长安汽车股份有限公司 | Engine timing system checks frock and method |
| CN111075905A (en) * | 2019-12-27 | 2020-04-28 | 岱高（苏州）汽车零部件有限公司 | Damping belt pulley |
| 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 |
| CN113533773A (en) * | 2021-08-17 | 2021-10-22 | 中国航发贵阳发动机设计研究所 | Aircraft engine fan rotational speed measuring device |
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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: 20120704 Termination date: 20131026 |