CN207540774U - Marine engine piston ring wear monitoring experimental rig - Google Patents
Marine engine piston ring wear monitoring experimental rig Download PDFInfo
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- CN207540774U CN207540774U CN201721433849.3U CN201721433849U CN207540774U CN 207540774 U CN207540774 U CN 207540774U CN 201721433849 U CN201721433849 U CN 201721433849U CN 207540774 U CN207540774 U CN 207540774U
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- piston ring
- transmission shaft
- sensor
- marine engine
- mounting base
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Abstract
The utility model discloses a kind of marine engine piston ring wear monitoring experimental rig, which includes pedestal, is arranged on perpendicular fixed slide bar on pedestal, is set in the driving mechanism for installing several piston rings to be measured and can be along the piston ring mounting base that slide bar slides up and down and for piston ring mounting base to be driven up and down reciprocatingly to be slided along slide bar on slide bar；Driving mechanism includes motor, transmission shaft, gear, eccentric wheel and rigid link, and one end of transmission shaft and the output shaft coaxial transmission of motor connect, and the other end and the eccentric wheel of transmission shaft are sequentially connected；Gear, which is set in the middle part of transmission shaft, to be secured to connect；One end of rigid link is hinged by the first swivel pin with eccentric wheel, and the other end of rigid link is hinged by the second swivel pin and piston ring mounting base.The utility model is simple in structure, flexibility is good, the test period is short, and not only magnetoresistive sensor can be demarcated, but also to the dismounting very simple of piston ring, applied widely.
Description
Technical field
The utility model is related to engine piston ring tool-wear monitoring devices, are ground in particular to a kind of marine engine piston ring
Damage monitoring test device.
Background technology
With inner surface of cylinder liner friction, which can occur, for marine engine piston ring during the motion leads to piston ring scuffing, makes work
Plug ring can not meet original performance requirement, so as to influence the performance of diesel engine.With the aggravation of piston ring scuffing, it will development
As the significant trouble of engine, even there is major accident in the normal operation for influencing ship, and therefore, research marine engine is lived
The wear monitoring of plug ring has great importance.
In the prior art, the Chinese utility model patent application No. is 200920085043.9 discloses a kind of marine diesel
Machine piston ring scuffing state monitoring apparatus, the device are used to test the entire cylinder of diesel engine, but in test operation
In it is very cumbersome to the dismounting of piston ring, the test period is longer, and can only monitor the work to match with the piston in the cylinder
Plug ring, flexibility are poor.In addition, the method for existing marine engine piston ring wear monitoring is mainly maintenance down, remove
Piston ring measures opened gap, and this method not only time and effort consuming, and shutdown cost is higher in shipping transport is not easy to determine inspection
Repair the time.
Invention content
The purpose of this utility model seeks to provide a kind of marine engine piston ring wear monitoring experimental rig, the device
It is simple in structure, flexibility is good, the test period is short, magnetoresistive sensor can not only be demarcated, but also to the dismounting of piston ring
Very simple, suitable for monitoring different model, the state of wear of different-thickness piston ring.
To achieve the above object, a kind of marine engine piston ring wear monitoring experimental rig provided by the utility model,
Including pedestal, it is characterized in that：It further includes and is arranged on perpendicular fixed slide bar on pedestal, be set on slide bar and be used for
Several piston rings to be measured are installed and can be along the piston ring mounting base that slide bar slides up and down and for driving piston ring mounting base
The driving mechanism up and down reciprocatingly slided along slide bar；
The driving mechanism includes motor, transmission shaft, gear, eccentric wheel and rigid link, one end of the transmission shaft
It is connect with the output shaft coaxial transmission of motor, the other end and the eccentric wheel of the transmission shaft are sequentially connected；The gear is set in
It is secured to connect in the middle part of transmission shaft；One end of the rigid link is hinged by the first swivel pin with eccentric wheel, described firm
The other end of property connecting rod is hinged by the second swivel pin and piston ring mounting base.In this way, driving mechanism can replace existing apparatus
In toggle driving piston ring mounting base piston ring is driven up and down reciprocatingly to be slided along slide bar.
Further, it further includes monitoring system, and the monitoring system includes monitoring piston ring and piston ring to be measured
Mounting base magnetoresistive sensor of generated total magnetic intensity after being magnetized passes for monitoring the first magneto-electric of the rotating speed of gear
Sensor, for monitoring the second magnetoelectric sensor of the top dead center position of gear, signal processing module and operating mode machine；
The magnetoresistive sensor, the first magnetoelectric sensor, the second magnetoelectric sensor signal output end respectively with letter
The signal input part connection of number processing module, the signal output end of the signal processing module connect with the signal input part of operating mode machine
It connects.
Further, it further includes the sensor calibration apparatus for being demarcated to magnetoresistive sensor, the sensor
Caliberating device includes Helmholtz coil, and the central axes midpoint of the Helmholtz coil is provided with to install magneto-resistive transducing
The sensor stand of device, the signal output end of the sensor calibration apparatus and the signal input part of signal processing module connect.
Further, be provided in the piston ring mounting base several for for piston ring to be measured insertion install insertion
Slot can be embedded in the piston ring of installation different model, the different degrees of wear.
Further, the motor is speed variable motor, and the speed adjustable range of the speed variable motor is 100r/min
~1500r/min.
Still further, it is connected between the transmission shaft and motor by shaft coupling coaxial transmission.
Further, the support base for being used to support installation transmission shaft is additionally provided on the pedestal.
Compared with prior art, the utility model has the following advantages that：
First, the piston ring mounting base that the utility model uses carries out piston ring embedded installation, it can easily more
Change different model, different size piston ring exemplar, it is complete so as to fulfill being carried out to the piston ring of different model, the different degree of wear
Face is effectively assessed, and flexibility is good, versatility is high, time saving and energy saving.
Second, the utility model directly replaces the piston ring of different state of wear using the piston ring of different-thickness, shorten
Test period reduces experimentation cost.
Third, the utility model replaces crank using eccentric wheel, piston is replaced with piston ring mounting base, it is convenient to piston ring
Dismounting and change is carried out, it can the cost-effective and time.
Fourth, the utility model is designed with sensor calibration apparatus, magnetoresistive sensor can be demarcated, reduce experiment and miss
Difference.
Description of the drawings
Fig. 1 is a kind of structure diagram of marine engine piston ring wear monitoring experimental rig；
In figure：Pedestal 1, slide bar 2, piston ring to be measured 3, piston ring mounting base 4, embedded groove 4.1, driving mechanism 5, motor
5.1st, transmission shaft 5.2, gear 5.3, eccentric wheel 5.4, rigid link 5.5, the first swivel pin 6.1, the second swivel pin 6.2, magnetic resistance
Sensor 7, the first magnetoelectric sensor 8.1, the second magnetoelectric sensor 8.2, signal processing module 9, operating mode machine 10, sensor
Caliberating device 11, Helmholtz coil 11.1, sensor stand 11.2, shaft coupling 12, support base 13.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
A kind of marine engine piston ring wear monitoring experimental rig as shown in the figure, including pedestal 1, is arranged on pedestal 1
Perpendicular fixed slide bar 2 is set on slide bar 2 to install several piston rings 3 to be measured and can slide up and down along slide bar 2
Piston ring mounting base 4 and driving mechanism 5 for piston ring mounting base 4 to be driven up and down reciprocatingly to be slided along slide bar 2, it is to be measured
Piston ring 3 is the metal component being prepared by alloy material, identical with the piston material in existing marine engine.Piston
Ring mounting base 4 is metal component made of cast iron materials, identical with the piston ring material in existing marine engine.Driving machine
Structure 5 includes motor 5.1, transmission shaft 5.2, gear 5.3, eccentric wheel 5.4 and rigid link 5.5, and motor 5.1 is speed variable
Motor, the speed adjustable range of speed variable motor is 100r/min~1500r/min.One end of transmission shaft 5.2 passes through shaft coupling 12
It is connect with the output shaft coaxial transmission of motor 5.1, the other end and the eccentric wheel 5.4 of transmission shaft 5.2 are sequentially connected, on pedestal 1 also
The support base 13 for being used to support installation transmission shaft 5.2 is provided with, transmission shaft 5.2 is mounted on by sliding bearing on support base 13.
The middle part that gear 5.3 is set in transmission shaft 5.2 is secured to connect, and gear 5.3 is positioned by the keyway on transmission shaft 5.2 and is used in combination
Axle sleeve is fixed；One end of rigid link 5.5 is hinged with eccentric wheel 5.4 by the first swivel pin 6.1, and eccentric wheel 5.4 passes through transmission
Keyway positioning blending bolt on axis 5.2 is fixed, and the other end of rigid link 5.5 is pacified by the second swivel pin 6.2 with piston ring
Fill that seat 4 is hinged, be provided in piston ring mounting base 4 several for supply the embedded groove 4.1 installed of piston ring 3 to be measured insertion.
In above-mentioned technical proposal, it further includes monitoring system, and monitoring system includes monitoring piston ring 3 and piston to be measured
The magnetoresistive sensor 7 of the generated total magnetic intensity after being magnetized of ring mounting base 4, for monitor the rotating speed of gear 5.3 first
Magnetoelectric sensor 8.1, the second magnetoelectric sensor 8.2, signal processing module for monitoring the top dead center position of gear 5.3
9 and operating mode machine 10；The signal output of magnetoresistive sensor 7, the first magnetoelectric sensor 8.1, the second magnetoelectric sensor 8.2
The signal input part respectively with signal processing module 9 is held to connect, the signal output end of signal processing module 9 and the letter of operating mode machine 10
The connection of number input terminal.Carry out the extraction of fault eigenvalue to the signal that signal processing module 9 acquires by operating mode machine 10 again, and then
Determine the degree of wear of piston ring.
In above-mentioned technical proposal, it further includes the sensor calibration apparatus 11 for being demarcated to magnetoresistive sensor 7, passes
Sensor caliberating device 11 includes Helmholtz coil 11.1, and the central axes midpoint of Helmholtz coil 11.1 is provided with to pacify
Fill the sensor stand 11.2 of magnetoresistive sensor 7, the signal output end of sensor calibration apparatus 11 and the letter of signal processing module 9
The connection of number input terminal.When starting to be monitored experiment to the abrasion of marine engine piston ring, first magnetoresistive sensor 7 is carried out
Magnetoresistive sensor 7 is firstly placed on the examination of 11.2 enterprising rower location survey of sensor stand, again by magnetic resistance after calibration detection is qualified by calibration
Sensor 7 for monitor piston ring 3 to be measured and piston ring mounting base 4 be magnetized after generated total magnetic intensity, can reduce
Experimental error.
The above, only specific embodiment of the present utility model, it is noted that any to be familiar with those skilled in the art
Member is in the technical scope disclosed by the utility model, and the change or replacement that can readily occur in should all be covered in the utility model
Protection domain within.
Claims (7)
1. a kind of marine engine piston ring wear monitoring experimental rig, including pedestal (1), it is characterised in that：Further include setting
On pedestal (1) perpendicular fixed slide bar (2), be set on slide bar (2) for install several piston rings (3) to be measured and
Can along the piston ring mounting base (4) that slide bar (2) slide up and down and for drive piston ring mounting base (4) along slide bar (2) up and down
The driving mechanism (5) to reciprocatingly slide；
The driving mechanism (5) connects including motor (5.1), transmission shaft (5.2), gear (5.3), eccentric wheel (5.4) and rigidity
Bar (5.5), one end of the transmission shaft (5.2) are connect with the output shaft coaxial transmission of motor (5.1), the transmission shaft (5.2)
The other end and eccentric wheel (5.4) be sequentially connected；The gear (5.3) is set in the company of being secured in the middle part of transmission shaft (5.2)
It connects；One end of the rigid link (5.5) is hinged by the first swivel pin (6.1) and eccentric wheel (5.4), the rigid link
(5.5) the other end is hinged by the second swivel pin (6.2) and piston ring mounting base (4).
2. marine engine piston ring wear monitoring experimental rig according to claim 1, it is characterised in that：It is further included
Monitoring system, the monitoring system include for monitor piston ring to be measured (3) and piston ring mounting base (4) be magnetized after it is produced
Total magnetic intensity magnetoresistive sensor (7), for monitor the first magnetoelectric sensor (8.1) of the rotating speed of gear (5.3), use
In the second magnetoelectric sensor (8.2), signal processing module (9) and the operating mode machine of the top dead center position of monitoring gear (5.3)
(10)；
The magnetoresistive sensor (7), the first magnetoelectric sensor (8.1), the second magnetoelectric sensor (8.2) signal output end
The signal input part with signal processing module (9) is connect respectively, signal output end and the operating mode machine of the signal processing module (9)
(10) signal input part connection.
3. marine engine piston ring wear monitoring experimental rig according to claim 2, it is characterised in that：It is further included
For the sensor calibration apparatus (11) demarcated to magnetoresistive sensor (7), the sensor calibration apparatus (11) is including the last of the twelve Earthly Branches
Mu Huozi coils (11.1), the central axes midpoint of the Helmholtz coil (11.1) are provided with to install magnetoresistive sensor
(7) sensor stand (11.2), the signal output end of the sensor calibration apparatus (11) and the letter of signal processing module (9)
The connection of number input terminal.
4. the marine engine piston ring wear monitoring experimental rig according to claims 1 or 2 or 3, it is characterised in that：Institute
State be provided in piston ring mounting base (4) several for supply piston ring to be measured (3) embedded embedded groove (4.1) installed.
5. the marine engine piston ring wear monitoring experimental rig according to claims 1 or 2 or 3, it is characterised in that：Institute
Motor (5.1) is stated as speed variable motor, the speed adjustable range of the speed variable motor is 100r/min~1500r/min.
6. the marine engine piston ring wear monitoring experimental rig according to claims 1 or 2 or 3, it is characterised in that：Institute
It states and is connect between transmission shaft (5.2) and motor (5.1) by shaft coupling (12) coaxial transmission.
7. the marine engine piston ring wear monitoring experimental rig according to claims 1 or 2 or 3, it is characterised in that：Institute
State the support base (13) for being additionally provided on pedestal (1) and being used to support installation transmission shaft (5.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433849.3U CN207540774U (en) | 2017-10-27 | 2017-10-27 | Marine engine piston ring wear monitoring experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721433849.3U CN207540774U (en) | 2017-10-27 | 2017-10-27 | Marine engine piston ring wear monitoring experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207540774U true CN207540774U (en) | 2018-06-26 |
Family
ID=62611868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721433849.3U Active CN207540774U (en) | 2017-10-27 | 2017-10-27 | Marine engine piston ring wear monitoring experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207540774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187033A (en) * | 2018-10-19 | 2019-01-11 | 安庆中船柴油机有限公司 | A kind of acquisition methods and device of cam top dead centre |
| CN110207988A (en) * | 2019-06-10 | 2019-09-06 | 武汉理工大学 | Marine engine connecting rod liner wear simulation test device and test method |
-
2017
- 2017-10-27 CN CN201721433849.3U patent/CN207540774U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187033A (en) * | 2018-10-19 | 2019-01-11 | 安庆中船柴油机有限公司 | A kind of acquisition methods and device of cam top dead centre |
| CN109187033B (en) * | 2018-10-19 | 2020-12-18 | 安庆中船柴油机有限公司 | Method and device for acquiring top dead center of cam |
| CN110207988A (en) * | 2019-06-10 | 2019-09-06 | 武汉理工大学 | Marine engine connecting rod liner wear simulation test device and test method |
| CN110207988B (en) * | 2019-06-10 | 2024-08-20 | 武汉理工大学 | Marine engine connecting rod bushing wear simulation test device and test method |
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