CN101782467A - Tensioner with function of monitoring and detecting timing system - Google Patents
Tensioner with function of monitoring and detecting timing system Download PDFInfo
- Publication number
- CN101782467A CN101782467A CN200910095503A CN200910095503A CN101782467A CN 101782467 A CN101782467 A CN 101782467A CN 200910095503 A CN200910095503 A CN 200910095503A CN 200910095503 A CN200910095503 A CN 200910095503A CN 101782467 A CN101782467 A CN 101782467A
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- CN
- China
- Prior art keywords
- stretcher
- timing system
- ratchet
- shake
- tensioner
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Abstract
The invention discloses a tensioner with the function of monitoring and detecting a timing system, comprising a body; the tensioner is internally provided with a tensioner plunger, an extension end of the tensioner plunger is extended to the outside of the body; the extension end of the tensioner plunger is located in the body and is connected with a hydraulic power end of the tensioner, the exterior of the tensioner body is provided with a stroke trigger. In the invention, the tensioner is provided with a stroke trigger through which, signals are transmitted to an engine on-board diagnostics (PBD). Wear degree of the tensioner can be worked out by calculus of interpolation, so long as measurement signals are appropriately calibrated and the calibrated signals are transmitted to the on-board diagnostics, the timing system of the engine can be monitored in real time; as a result, the defect that the engine is needed to be opened to detect the parts of the timing system, the operation is complicated, the detection means consume time and maintenance and detection cost is high when the timing system of a motor vehicle is regularly detected can be overcome.
Description
Technical field
The present invention relates to a kind of vehicle detection apparatus, be specifically related to a kind of stretcher that timing system is carried out the monitoring and detection function that has.
Background technology
Usually, running car will be changed to certain mileage rear engine timing system part, but the oil product of the duty of each automobile and engine motor oil etc. all can influence the wearing and tearing of timing system, and how many kilometers are changed once just is difficult to fixed occurrence.Detection regularly needs to open engine again measures the timing systematic part, and this will increase consumer's maintenance cost.
Goal of the invention
Goal of the invention of the present invention, when being that timing system at motor vehicle regularly detects, need open engine measures the timing systematic part, complex operation, detection means is consuming time takes a lot of work, consumer's maintenance detects the higher defective of cost, provide to plant and had the stretcher that timing system is carried out the monitoring and detection function, adopt kind of the present invention to have the stretcher that timing system is carried out the monitoring and detection function, as long as measuring-signal is carried out appropriate demarcation, calibrated signal is sent to engine on-line measuring device (On-boardDiagnostics), just can monitor in real time engine timing system.
For achieving the above object, the technical solution used in the present invention is:
A kind of stretcher that timing system is carried out the monitoring and detection function that has comprises body, is provided with the stretcher plunger in the described stretcher, and the elongated end of described stretcher plunger extends to the outside of described body; The link of described stretcher plunger is positioned at described body interior and joins with the hydraulic power end of described stretcher, still is connected with the chain tooth bar on the body of described stretcher plunger, and described chain tooth bar is according to the direction of motion to-and-fro movement of described stretcher plunger; Described stretcher inside also is provided with ratchet, and described ratchet is constituted by pawl end and shake-up end, and described pawl end links closely with the chain toothed portion of described chain tooth bar and cooperates; The outside of described tensioner body also is provided with the one stroke trigger.
Further, also be provided with a pawl axis on the described ratchet, described ratchet is fixedly connected on described stretcher inside by described pawl axis, and described ratchet carries out axial circumference rotation according to described pawl axis for changeing the heart.
Further, a side of the shake-up end of described ratchet is provided with touch pole, is connected with the shake-up spring on the end of described touch pole, and the shake-up end of described ratchet promotes described touch pole by described shake-up spring and carries out deflection.
Further, the outside of described tensioner body also is provided with a ratchet and ends locking plate, and the end that described ratchet ends locking plate is connected with an end of described touch pole.
Improved, the direction of motion of the direction of motion of described chain tooth bar and described stretcher plunger in the same way; The shake-up end of described ratchet serves as to change the heart to carry out axial rotation with the pawl axis of described ratchet, and the shake-up end that described ratchet is starved is opposite with the direction of motion of described stretcher plunger; The shake-up end of described ratchet promotes described touch pole and moves in rotation process; Described ratchet ends locking plate and upward deflect and trigger described stroke trigger under the drive of described touch pole.
Utilize a kind of detection operation of timing system being carried out the stretcher of monitoring and detection function that has of the present invention, the flow process of operation is:
A, initial alignment: according to the test findings of engine, the overhang identifying the stretcher under the state of wear not on the engine on-line measuring device writes down this initial alignment value;
B, measurement: after timing system moves a period of time, the overhang of stretcher is measured, write down this measured value;
C, interpolation calculation: after timing system moves certain course, wearing and tearing will cause the stretcher overhang to increase, and utilize the mileage number and the stretcher overhang of operation to be demarcated again by method of interpolation, and obtain the residual life of timing system.
Beneficial effect of the present invention is:
1, said structure of the present invention, stretcher be provided with the stroke trigger, send a signal to engine on-line measuring device (OBD) by the stroke trigger, can draw the degree of wear of stretcher by interpolation calculation, as long as measuring-signal is carried out appropriate demarcation, calibrated signal is sent to engine on-line measuring device (On-board Diagnostics), just can monitor in real time engine timing system, when having solved timing system to motor vehicle and regularly having detected, need open engine measures the timing systematic part, complex operation, detection means is consuming time takes a lot of work, and consumer's maintenance detects the higher defective of cost.
2, the present invention is simple and reliable for structure, measures accurately, and the automaticity height is suitable for being extensive use of in the motor vehicle detecting field.
Embodiment
Following the present invention is further detailed:
A kind of stretcher that timing system is carried out the monitoring and detection function that has comprises body, is provided with the stretcher plunger in the described stretcher, and the elongated end of described stretcher plunger extends to the outside of described body; The link of described stretcher plunger is positioned at described body interior and joins with the hydraulic power end of described stretcher, still is connected with the chain tooth bar on the body of described stretcher plunger, and described chain tooth bar is according to the direction of motion to-and-fro movement of described stretcher plunger; Described stretcher inside also is provided with ratchet, and described ratchet is constituted by pawl end and shake-up end, and described pawl end links closely with the chain toothed portion of described chain tooth bar and cooperates; The outside of described tensioner body also is provided with the one stroke trigger.Also be provided with a pawl axis on the described ratchet, described ratchet is fixedly connected on described stretcher inside by described pawl axis, and described ratchet carries out axial circumference rotation according to described pawl axis for changeing the heart.One side of the shake-up end of described ratchet is provided with touch pole, is connected with the shake-up spring on the end of described touch pole, and the shake-up end of described ratchet promotes described touch pole by described shake-up spring and carries out deflection.The outside of described tensioner body also is provided with a ratchet and ends locking plate, and the end that described ratchet ends locking plate is connected with an end of described touch pole.The direction of motion of the direction of motion of described chain tooth bar and described stretcher plunger in the same way; The shake-up end of described ratchet serves as to change the heart to carry out axial rotation with the pawl axis of described ratchet, and the shake-up end that described ratchet is starved is opposite with the direction of motion of described stretcher plunger; The shake-up end of described ratchet promotes described touch pole and moves in rotation process; Described ratchet ends locking plate and upward deflect and trigger described stroke trigger under the drive of described touch pole.
Utilize a kind of detection operation of timing system being carried out the stretcher of monitoring and detection function that has of the present invention, the flow process of operation is:
A, initial alignment: according to the test findings of engine, the overhang identifying the stretcher under the state of wear not on the engine on-line measuring device writes down this initial alignment value;
B, measurement: after timing system moves a period of time, the overhang of stretcher is measured, write down this measured value;
C, interpolation calculation: after timing system moves certain course, wearing and tearing will cause the stretcher overhang to increase, and utilize the mileage number and the stretcher overhang of operation to be demarcated again by method of interpolation, and obtain the residual life of timing system.
In the ratchet rear end of pawl type stretcher, a stroke trigger (part A) is set.Wearing and tearing along with timing system, stretcher plunger C progressively ejects under the effect of spring D and hydraulic coupling, and promotion pawl axis F rotates, state shown in the solid line is decided to be state 1, state shown in the dotted line is decided to be state 2, as can be seen, the stretcher plunger stretches out an about pitch P for 1 time at state and moves to state 2, pawl axis F reaches hard-over, ratchet ends the also corresponding full swing position that reaches of locking plate B, and the impact stroke trigger sends a pulse, and this pulse signal is transferred to OBD, utilize method of interpolation again calibration scale to be made amendment, just can dope the residual life of timing system.Because state 2 is in the unstable state balance, ratchet E returned to state 1 again when the wearing and tearing of timing system had small amount of wear or system vibration again under the elastic force of spring G.So circulation is gone down, and the stroke trigger whenever sends a pulse, and corresponding stretcher stretches out a pitch, and calibration scale is once revised.Thereby realize dynamically predicting the timing system life-span exactly.
Below by embodiment the present invention is carried out an explanation:
In actual measurement, a kind of measurement mechanism is installed on the timing system stretcher, in the vehicle traveling process, measure the overhang of stretcher tappet in real time with sensor, and the overhang signal is sent to OBD, according to experimental result or engine road examination experience in the past, initial stage of input is demarcated form (or an initial stage calibrating procedure) (as the initial stage calibration scale in the subordinate list 1) in the OBD of engine; Dynamic calibration: after timing system moves certain course, wearing and tearing will cause stretcher tappet overhang to increase, utilize the course number and the stretcher tappet overhang of operation that existing demarcation form (or calibrating procedure) is demarcated again by method of interpolation, and obtain the residual life of timing system.
For example timing system moves 30,000 kilometers, stretcher tappet overhang is 2mm, utilize these data that the initial stage calibration scale in the subordinate list 1 is demarcated again and can obtain revised calibration scale (as revised calibration scale in the subordinate list 1, this table is that the initial alignment table is carried out the once linear interpolation).The residual life that therefrom can find system is 210,000 kilometers.
The revised calibration scale of initial alignment table
Stretcher is endured the stretcher tappet
Timing system residue timing system operation timing system residue
Post overhang overhang
(ten thousand kilometers) life-span (ten thousand kilometers) life-span in life-span (ten thousand kilometers)
(mm) (mm)
0 16 0 0 24
2 14 2 3 21
4 12 4 18
6 10 6 15
8 8 8 12
10 6 10 9
12 4 12 6
14 2 14 3
16 0 16 0
Subordinate list 1
Need to prove that embodiment only is to explanation of the present invention and non-limiting, adopt essence technical scheme of the present invention and the change carried out, still in protection scope of the present invention.
Claims (6)
1. one kind has the stretcher that timing system is carried out the monitoring and detection function, comprises body, is provided with the stretcher plunger in the described stretcher, and the elongated end of described stretcher plunger extends to the outside of described body; The link of described stretcher plunger is positioned at described body interior and joins with the hydraulic power end of described stretcher, it is characterized in that: still be connected with the chain tooth bar on the body of described stretcher plunger, described chain tooth bar is according to the direction of motion to-and-fro movement of described stretcher plunger; Described stretcher inside also is provided with ratchet, and described ratchet is constituted by pawl end and shake-up end, and described pawl end links closely with the chain toothed portion of described chain tooth bar and cooperates; The outside of described tensioner body also is provided with the one stroke trigger.
2. a kind of stretcher that timing system is carried out the monitoring and detection function that has according to claim 1, it is characterized in that: also be provided with a pawl axis on the described ratchet, described ratchet is fixedly connected on described stretcher inside by described pawl axis, and described ratchet carries out axial circumference rotation according to described pawl axis for changeing the heart.
3. a kind of stretcher that timing system is carried out the monitoring and detection function that has according to claim 1, it is characterized in that: a side of the shake-up end of described ratchet is provided with touch pole, and the shake-up end that is connected with the described ratchet of shake-up spring on the end of described touch pole promotes described touch pole by described shake-up spring and carries out deflection.
4. according to claim 1 or 3 described a kind of stretchers that timing system carried out the monitoring and detection function that have, it is characterized in that: the outside of described tensioner body also is provided with a ratchet and ends locking plate, and the end that described ratchet ends locking plate is connected with an end of described touch pole.
5. a kind of stretcher that timing system is carried out the monitoring and detection function that has according to claim 1, it is characterized in that: the direction of motion of the direction of motion of described chain tooth bar and described stretcher plunger is in the same way; The shake-up end of described ratchet serves as to change the heart to carry out shake-up end that the described ratchet of axial rotation starves and the shake-up end of the opposite described ratchet of direction of motion of described stretcher plunger and promote the described touch pole described ratchet that moves end locking plate upward deflect and trigger described stroke trigger under the drive of described touch pole in rotation process with the pawl axis of described ratchet.
6. utilize a kind of detection operation of timing system being carried out the stretcher of monitoring and detection function that has as claimed in claim 1, it is characterized in that: the flow process of described operation is:
A, initial alignment: according to the test findings of engine, the overhang identifying the stretcher under the state of wear not on the engine on-line measuring device writes down this initial alignment value;
B, measurement: after timing system moves a period of time, the overhang of stretcher is measured, write down this measured value;
C, interpolation calculation: after timing system moves certain course, wearing and tearing will cause the stretcher overhang to increase, and utilize the mileage number and the stretcher overhang of operation to be demarcated again by method of interpolation, and obtain the residual life of timing system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910095503 CN101782467B (en) | 2009-01-19 | 2009-01-19 | Tensioner with function of monitoring and detecting timing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910095503 CN101782467B (en) | 2009-01-19 | 2009-01-19 | Tensioner with function of monitoring and detecting timing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101782467A true CN101782467A (en) | 2010-07-21 |
| CN101782467B CN101782467B (en) | 2013-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910095503 Active CN101782467B (en) | 2009-01-19 | 2009-01-19 | Tensioner with function of monitoring and detecting timing system |
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| CN (1) | CN101782467B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802124A (en) * | 2015-11-25 | 2017-06-06 | 青岛征和工业股份有限公司 | A kind of engine catenary system stretcher plunger displacement measuring device and measuring method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2237180B (en) * | 1989-10-26 | 1994-02-02 | Autoliv Dev | Improvements in or relating to a seat belt pre-tensioner arrangement |
| JP2003194165A (en) * | 2001-12-28 | 2003-07-09 | Borg Warner Morse Tec Japan Kk | Hydraulic tensioner |
| EP1431615A2 (en) * | 2002-12-16 | 2004-06-23 | BorgWarner Morse TEC Japan K.K. | Hydraulic tensioner |
| US6852049B2 (en) * | 2003-01-24 | 2005-02-08 | Borgwarner Inc. | Ratcheting hydraulic chain tensioner with rotational reset and locking means |
| JP3980023B2 (en) * | 2004-10-26 | 2007-09-19 | 株式会社椿本チエイン | Hydraulic tensioner with relief valve |
| JP4128196B2 (en) * | 2005-11-29 | 2008-07-30 | 株式会社椿本チエイン | Ratchet tensioner |
| JP4260189B2 (en) * | 2007-02-02 | 2009-04-30 | 株式会社椿本チエイン | Hydraulic tensioner |
-
2009
- 2009-01-19 CN CN 200910095503 patent/CN101782467B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802124A (en) * | 2015-11-25 | 2017-06-06 | 青岛征和工业股份有限公司 | A kind of engine catenary system stretcher plunger displacement measuring device and measuring method |
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| Publication number | Publication date |
|---|---|
| CN101782467B (en) | 2013-02-06 |
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