CN103245581A - Duplex piston ring-cylinder sleeve frictional wear test station - Google Patents
Duplex piston ring-cylinder sleeve frictional wear test station Download PDFInfo
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- CN103245581A CN103245581A CN201310134469XA CN201310134469A CN103245581A CN 103245581 A CN103245581 A CN 103245581A CN 201310134469X A CN201310134469X A CN 201310134469XA CN 201310134469 A CN201310134469 A CN 201310134469A CN 103245581 A CN103245581 A CN 103245581A
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Abstract
The invention discloses a duplex piston ring-cylinder sleeve frictional wear test station. The duplex piston ring-cylinder sleeve frictional wear test station comprises an upper-layer support and a lower-layer support, wherein the lower-layer support is fixedly provided with an electromotor, a diesel engine and a base; a revolving shaft of the electromotor is fixedly provided with a large belt wheel, and the upper-layer support is provided with a supporting plate provided with bearing bases; the bearing bases are internally provided with bearings, the bearings are internally provided with a crankshaft, and the crankshaft is provided with a first small belt wheel connected with the large belt wheel through a first V belt; the supporting plate is fixedly provided with a transverse piston cylinder, a piston is matched to the inside of the piston cylinder, and a connecting rod is connected between the piston and the crankshaft; and an input shaft of the diesel engine is provided with a second small belt wheel connected with the large belt wheel through a second V belt, and the base is provided with a cylinder sleeve upper test specimen positioning clamping device, a cylinder sleeve lower test specimen positioning clamping device and a force transducer. The duplex piston ring-cylinder sleeve frictional wear test station provided by the invention utilizes a test station to carry out a lone frictional wear performance test on a cutting test specimen of a large-scale piston ring-cylinder sleeve or a small engine piston ring-cylinder sleeve, and the test specimens of the two piston ring-cylinder sleeve are simultaneously subjected to a frictional wear performance test.
Description
Technical field
The present invention relates to a kind of friction-wear test platform, a kind of testing table for the piston ring-cylinder sleeve friction wear test of saying so more specifically.
Background technology
Piston ring-cylinder liner is one of most important friction pair of engine, and the quality of its friction and wear behavior directly influences the usability of engine.At present, the main method of piston ring and cylinder sleeve friction wear performance evaluation has three kinds of specimen test method, platform experiment method and parts experimental analogic methods.Wherein the test parameters of sample experimental method is more easy to control, and repeatability is relative with stability better, but differs bigger with the piston ring-cylinder liner actual conditions, and simulation is relatively poor; The bench test method adopts fictitious load to carry out fire trial, and the condition controllability is good, and is better to the actual condition simulation of engine, but the test period is long, the cost height; And the parts experimental analogic method is a kind of method between specimen test and bench test, with actual condition simulation is preferably arranged, the shortening test period is arranged, reduce experimentation cost, improve the advantages such as controllability of test parameters, but on test efficiency and sample dimensions scope, also can further improve.Number of patent application is: 200510136811.5 disclose a kind of cylinder liner piston ring component friction wear test method and equipment, application machine formula radial load applying method and equipment carry out the equipment of cylinder sleeve and piston ring component friction-wear test, the charger complexity, range of application is limited.Number of patent application is: 200710066372.4 disclose a kind of reciprocating type piston ring-cylinder sleeve friction wear testing machine, adopt the motor-driven linkage assembly, and slide block and orienting sleeve by guiding mechanism are transformed into straight reciprocating motion, install make complicated, the cost height; Number of patent application is: 200820237523.8 disclosed a kind of piston ring-cylinder sleeve friction wear testing machines, adopt to load piston ring radial loaded device that nut, screw rod, inner conical drogue and external conical sleeve constitute to piston ring carry out radial loaded and by the strain that foil gauge is measured screw rod monitor in real time add the size of load, but just small-sized piston ring-cylinder sleeve integral body is tested; Number of patent application is: but in the big stroke temperature control of the disclosed high-frequency high specific pressure of the 201110041655.X reciprocating friction proving installation, adopt toggle, make piston ring to-and-fro movement between cylinder sleeve, make complicated, balance is poor, and a kind of test method to piston ring-cylinder liner intercepting test specimen only is provided; Contain forever (2012, the Maritime Affairs University Of Dalian, Master's thesis) internal combustion engine cylinder jacket-piston ring duplex friction wear testing machine of design adopts dual gear and complete cylinder sleeve-piston ring as the rubbing wear sample, realized the friction-wear test of two-cycle engine, but its test sample is more single.
Summary of the invention
The objective of the invention is in order to overcome the weak point of above-mentioned prior art, a kind of double crosslinking piston ring-cylinder sleeve friction wear testing table is provided, utilize this testing table both can carry out independent friction and wear behavior test to intercepting test specimen or the put-put piston ring-cylinder liner of Large Piston Ring-cylinder sleeve, also can carry out the friction and wear behavior test simultaneously to two kinds of piston ring-cylinder liner test specimens.
Technical scheme of the present invention is as follows:
A kind of double crosslinking piston ring-cylinder sleeve friction wear testing table, include upper layer bracket, lower floor support, be installed with motor, diesel engine, base on the lower floor support, be installed with big belt wheel on the motor rotary shaft, back up pad is installed on the upper layer bracket, bearing seat is installed on the back up pad, bearing is installed in the bearing seat, bent axle is installed in the bearing, first small pulley that is connected by V band with big belt wheel is installed on the bent axle, be set with horizontal piston cylinder on the back up pad, be combined with piston in the piston cylinder, be connected with connecting rod between piston and the bent axle; Second small pulley that is connected by the 2nd V band with big belt wheel is installed on the input shaft of described diesel engine, test specimen positioning clamping device, force cell, force cell anchor clamps under test specimen positioning clamping device, the cylinder sleeve are installed on the base on the cylinder sleeve, on the test specimen positioning clamping device charger is installed on the cylinder sleeve, described charger comprise supporter and with the supporter anchor clamps on the cylinder sleeve of suit that vertically slide, the upper end overhead of anchor clamps has lever on the cylinder sleeve, one end of lever is placed with counterweight, the other end is hung with scale pan, is placed with counterweight on the scale pan; The lower end of anchor clamps is gripped with test specimen on the cylinder sleeve on the cylinder sleeve, be gripped with test specimen under the cylinder sleeve under the cylinder sleeve on the test specimen positioning clamping device, the piston output terminal of described diesel engine is connected with and extend on the cylinder sleeve guide rod in test specimen gap under the test specimen and cylinder sleeve, it is concrete to be installed with piston ring clamp on the guide rod, insert and put respectively on piston ring clamp is concrete with cylinder sleeve on test specimen under test specimen, the piston ring on the piston ring of the corresponding rubbing contact of test specimen under the test specimen, cylinder sleeve; There is row's needle roller the test specimen below under the described cylinder sleeve, the force cell anchor clamps include sensor anchor clamps seat, sensor fixture block, pressure transducer is fixedly arranged in the sensor anchor clamps seat, pressure transducer is supported by the sensor fixture block, test specimen one end is dead block under the cylinder sleeve, and the other end is fixing vertically by the pressure transducer probe.
Described V band and the transmission simultaneously of the 2nd V band realize the piston ring-cylinder sleeve friction wear test of duplex.
The center-hole diameter of described counterweight is greater than the width of its opening, is inserted in counterweight with narrow opening, cooperates the not slippage under the vibration environment of realization process of the test, thereby stable the loading in the work with big center pit and scale pan suspension rod.
Be fixed with in described piston ring clamp is concrete with piston ring on the test specimen line contacts under the test specimen, piston ring bolt.Be support with the bolt, it is less that the original state clamping force is installed, and keeps the certain activity surplus of piston ring test specimen, after the cylinder sleeve test specimen loads, the arc surface of piston ring test specimen can freely be fitted with the arc surface of cylinder sleeve test specimen, guarantees good face contact, locks by guide bar bolt at last.
Described sensor one end places on the sensor fixture block, one end withstands test specimen under the cylinder sleeve, one row's ball is arranged below the test specimen under the cylinder sleeve, slide and be arranged in the sensor anchor clamps seat in described sensor fixture block rear end, the rear end overhead of sensor fixture block has the adjustment screw rod, be combined with clamping screw on the sensor anchor clamps seat, clamping screw is pressed on sensor fixture block upper end.
Compared with the prior art, beneficial effect of the present invention is embodied in:
In the intercepting test specimen friction-wear test that realizes Large Piston Ring-cylinder sleeve and the test of put-put piston ring-cylinder sleeve friction wear, make two kinds of tests realize duplex, namely can test simultaneously, not only structure is simpler, cost is low, good operability, and improved the efficient of test, save the installing space of testing equipment.
The present invention utilizes diesel engine reversely finishes the motion conversion, this testing table run up require under, the stability of equilibrium of diesel engine can improve the friction-wear test effect.
In the lower floor of the present invention testing table, cylinder sleeve test specimen and piston ring test specimen all are the intercepting parts of System for Large-scale Specimen, the arcuate structure that has kept itself, good contact when testing for making, when utilizing bolt to clamp test specimen, the piston ring test specimen is contacted with bolt point, play automatic aligning, the cylinder sleeve test specimen is well contacted with the piston ring test specimen, can improve experimental performance.
Description of drawings
Fig. 1 is master's TV structure synoptic diagram of the present invention.
Fig. 2 is Fig. 1 plan structure synoptic diagram.
Fig. 3 is the testing table master of lower floor TV structure synoptic diagram.
Fig. 4 is Fig. 3 left side TV structure synoptic diagram.
Fig. 5 is upper strata testing table part bent axle assembly structure synoptic diagram.
Fig. 6 is the piston-cylinder structural representation in the testing table of upper strata.
Fig. 7 is the structural representation of counterweight.
Number in the figure is: 1-lower floor support, 2-motor, the big belt wheel of 3-, 4-the one V band, 5-upper layer bracket, 6-piston cylinder, the 7-connecting rod, 8-first small pulley, 9-bearing seat, the 10-back up pad, 11-the 2nd V band, 12-second small pulley, the 13-diesel engine, 14-charger, test specimen positioning clamping device on the 15-cylinder sleeve, test specimen positioning clamping device under the 16-cylinder sleeve, 17-force cell anchor clamps, 18-base, the 19-bent axle, 20-lever, 21-scale pan, the 22-counterweight, anchor clamps on the 23-cylinder sleeve, test specimen on the 24-cylinder sleeve, test specimen under the 25-cylinder sleeve, 26-needle roller, 27-sensor fixture block, 28-sensor anchor clamps seat, test specimen under the 29-piston ring, 30-guide rod, test specimen on the 31-piston ring, 32-cylinder roller bearing, 33-piston, the 34-force cell, the 35-counterweight.
Embodiment
As depicted in figs. 1 and 2, this friction-wear test platform mainly is made up of power system, kinematic train, loading system and test macro, and power is to provide power by motor 2, and motor 2 is fixed on the lower floor support 1; On the one hand, power is with 11 to pass to second small pulley 12 by big belt wheel 3 by the 2nd V, the diesel engine 13 that drives the transformation of the way rotates, diesel engine 13 will rotatablely move and become rectilinear motion, and connection guide rod 30, guide rod 30 is moved reciprocatingly, piston ring test specimen 31,29 guide rod 30 are housed in to-and-fro movement between the cylinder sleeve test specimen 24,25 up and down, carry out manual loading by lever 20, scale pan 21; On the other hand, the power of motor 2 is with 4 to give first small pulley 5 by big belt wheel 3 by a V, and small pulley 5 drives the rotation of bent axle 19, and bent axle 19 drives piston 33 to-and-fro movement in piston cylinder 6 by connecting rod 7 again.
In specific implementation process, mainly comprise following content:
On lower floor's worktable as Fig. 3 and Fig. 4, when beginning to test, load counterweight 35 at the charger of being formed by counterweight 22, lever 20 and scale pan 21, form load, load is exerted pressure by 15 pairs of piston ring test specimens 31 of clamp body on the cylinder sleeve, the center-hole diameter of the counterweight 35 on the scale pan 21 is greater than the width of opening, and piston ring test specimen 31,29 is done the reciprocating friction test cylinder sleeve test specimen 24,25; Test specimen 25 is placed on row's needle roller 26 under cylinder sleeve, and an end is dead block, and the other end is fixing vertically by the probe of pressure transducer 34, and pressure transducer is supported by sensor fixture block 27, and is fixed on the sensor anchor clamps seat 28.
As shown in Figure 5 and Figure 6, in upper working table, bent axle 19 is supported by a pair of cylinder roller bearing 32, and cylinder roller bearing 32 is installed in two bearing seats 9, and bent axle 19 drives piston 33 to-and-fro movement in piston cylinder 6 by connecting rod 7.
The assembling of upper and lower layer is fixed on top stand 5 on the following stand 1 by bolt builds, and by belt 4 be in transmission connection motor 2 and top bent axle 19, provides power thereby finished a motor 2.The upper strata mechanism for testing has vertical and horizontal assembly relation, considers that vibrations that piston self gravitation etc. causes etc. to the influence of friction accuracy, have selected horizontal assembly relation.Lower floor is the testboard bay of large-scale cylinder sleeve-piston ring intercepting part, in test, moving components such as the bent axle of engine, connecting rod, piston pin, valve actuating mechanism can produce wearing and tearing in various degree and increase the test funds, and factors such as the load in the engine operation process, fuel consume are bigger to the test findings influence, thereby identify that accurately also there are bigger difficulty in the friction of each cylinder, the difference of wearing character.Propulsion system are fixed on mechanism's bottom worktable, and connections such as back up pad, intermediate shaft, fishbolt, setscrew nut are finished the work.Utilize the to-and-fro movement of propulsion system intermediate shaft to be connected with measurement mechanism. can simulate different working conditions, measure the friction and wear behavior between different condition lower piston ring-cylinder sleeve.
Claims (5)
1. double crosslinking piston ring-cylinder sleeve friction wear testing table, include upper layer bracket, lower floor support, it is characterized in that: be installed with motor on the lower floor support, diesel engine, base, be installed with big belt wheel on the motor rotary shaft, back up pad is installed on the upper layer bracket, bearing seat is installed on the back up pad, bearing is installed in the bearing seat, bent axle is installed in the bearing, first small pulley that is connected by V band with big belt wheel is installed on the bent axle, be set with horizontal piston cylinder on the back up pad, be combined with piston in the piston cylinder, be connected with connecting rod between piston and the bent axle; Second small pulley that is connected by the 2nd V band with big belt wheel is installed on the input shaft of described diesel engine, test specimen positioning clamping device, force cell, force cell anchor clamps under test specimen positioning clamping device, the cylinder sleeve are installed on the base on the cylinder sleeve, on the test specimen positioning clamping device charger is installed on the cylinder sleeve, described charger comprise supporter and with the supporter anchor clamps on the cylinder sleeve of suit that vertically slide, the upper end overhead of anchor clamps has lever on the cylinder sleeve, one end of lever is placed with counterweight, the other end is hung with scale pan, is placed with counterweight on the scale pan; The lower end of anchor clamps is gripped with test specimen on the cylinder sleeve on the cylinder sleeve, be gripped with test specimen under the cylinder sleeve under the cylinder sleeve on the test specimen positioning clamping device, the piston output terminal of described diesel engine is connected with and extend on the cylinder sleeve guide rod in test specimen gap under the test specimen and cylinder sleeve, it is concrete to be installed with piston ring clamp on the guide rod, insert and put respectively on piston ring clamp is concrete with cylinder sleeve on test specimen under test specimen, the piston ring on the piston ring of the corresponding rubbing contact of test specimen under the test specimen, cylinder sleeve; There is row's needle roller the test specimen below under the described cylinder sleeve, the force cell anchor clamps include sensor anchor clamps seat, sensor fixture block, pressure transducer is fixedly arranged in the sensor anchor clamps seat, pressure transducer is supported by the sensor fixture block, test specimen one end is dead block under the cylinder sleeve, and the other end is fixing vertically by the pressure transducer probe.
2. double crosslinking piston ring according to claim 1-cylinder sleeve friction wear testing table is characterized in that: described V band and the transmission simultaneously of the 2nd V band.
3. double crosslinking piston ring according to claim 1-cylinder sleeve friction wear testing table, it is characterized in that: the center-hole diameter of described counterweight is greater than the width of its opening.
4. double crosslinking piston ring according to claim 1-cylinder sleeve friction wear testing table is characterized in that: be fixed with in described piston ring clamp is concrete with piston ring on the test specimen line contacts under the test specimen, piston ring bolt.
5. double crosslinking piston ring according to claim 1-cylinder sleeve friction wear testing table, it is characterized in that: described sensor one end places on the sensor fixture block, one end withstands test specimen under the cylinder sleeve, one row's ball is arranged below the test specimen under the cylinder sleeve, slide and be arranged in the sensor anchor clamps seat in described sensor fixture block rear end, the rear end overhead of sensor fixture block has the adjustment screw rod, is combined with clamping screw on the sensor anchor clamps seat, and clamping screw is pressed on sensor fixture block upper end.
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| CN201310134469.XA CN103245581B (en) | 2013-04-17 | 2013-04-17 | Duplex piston ring-cylinder sleeve frictional wear test station |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675423A (en) * | 2016-01-04 | 2016-06-15 | 武汉理工大学 | Engine cylinder sleeve-piston ring friction pair frictional wear testing system |
| CN106153485A (en) * | 2015-04-22 | 2016-11-23 | 南京理工大学 | A kind of experimental provision simulating piston ring-cylinder liner abrasion |
| CN107121292A (en) * | 2017-07-12 | 2017-09-01 | 河北工业大学 | Piston ring and cylinder low friction experimental system and its application method based on heat management |
| CN107894370A (en) * | 2017-12-06 | 2018-04-10 | 南京奥特佳新能源科技有限公司 | A kind of straight pin fatigue tester |
| CN108152152A (en) * | 2018-01-03 | 2018-06-12 | 上海市城市建设设计研究总院（集团）有限公司 | Full-automatic duplex pressure at right angle device |
| CN108362598A (en) * | 2018-05-14 | 2018-08-03 | 吉林大学 | A kind of multi-functional piston-cylinder System friction-wear test test machine |
| CN109085079A (en) * | 2018-09-25 | 2018-12-25 | 合肥工业大学 | A kind of multifunctional internal-combustion engine cylinder liner piston ring friction wear testing machine |
| CN110108547A (en) * | 2019-04-19 | 2019-08-09 | 华中科技大学 | A kind of adjustable clamp for the test of piston ring-cylinder liner sample reciprocating friction |
| CN110160906A (en) * | 2019-06-24 | 2019-08-23 | 安徽理工大学 | A kind of reciprocating friction abrasion tester of included lubrication and compound force loading system |
| CN111982731A (en) * | 2020-08-26 | 2020-11-24 | 徐州徐工挖掘机械有限公司 | Bushing friction wear test device |
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| CN106153485A (en) * | 2015-04-22 | 2016-11-23 | 南京理工大学 | A kind of experimental provision simulating piston ring-cylinder liner abrasion |
| CN105675423B (en) * | 2016-01-04 | 2018-03-16 | 武汉理工大学 | A kind of Cylinder Liner Piston Ring in Engine friction pair friction and wear test system |
| CN105675423A (en) * | 2016-01-04 | 2016-06-15 | 武汉理工大学 | Engine cylinder sleeve-piston ring friction pair frictional wear testing system |
| CN107121292B (en) * | 2017-07-12 | 2023-06-09 | 河北工业大学 | Piston ring-cylinder sleeve low-friction experiment system based on thermal management and application method thereof |
| CN107121292A (en) * | 2017-07-12 | 2017-09-01 | 河北工业大学 | Piston ring and cylinder low friction experimental system and its application method based on heat management |
| CN107894370A (en) * | 2017-12-06 | 2018-04-10 | 南京奥特佳新能源科技有限公司 | A kind of straight pin fatigue tester |
| CN108152152A (en) * | 2018-01-03 | 2018-06-12 | 上海市城市建设设计研究总院（集团）有限公司 | Full-automatic duplex pressure at right angle device |
| CN108362598A (en) * | 2018-05-14 | 2018-08-03 | 吉林大学 | A kind of multi-functional piston-cylinder System friction-wear test test machine |
| CN108362598B (en) * | 2018-05-14 | 2024-01-09 | 吉林大学 | Friction and wear test machine for multifunctional piston-cylinder sleeve system |
| CN109085079A (en) * | 2018-09-25 | 2018-12-25 | 合肥工业大学 | A kind of multifunctional internal-combustion engine cylinder liner piston ring friction wear testing machine |
| CN109085079B (en) * | 2018-09-25 | 2021-04-02 | 合肥工业大学 | Multifunctional internal combustion engine cylinder sleeve piston ring friction wear testing machine |
| CN110108547A (en) * | 2019-04-19 | 2019-08-09 | 华中科技大学 | A kind of adjustable clamp for the test of piston ring-cylinder liner sample reciprocating friction |
| CN110108547B (en) * | 2019-04-19 | 2023-09-29 | 华中科技大学 | Adjustable clamp for piston ring-cylinder sleeve sample reciprocating friction test |
| CN110160906A (en) * | 2019-06-24 | 2019-08-23 | 安徽理工大学 | A kind of reciprocating friction abrasion tester of included lubrication and compound force loading system |
| CN110160906B (en) * | 2019-06-24 | 2024-03-22 | 安徽理工大学 | Reciprocating friction and wear testing machine with lubricating and compound force loading system |
| CN111982731A (en) * | 2020-08-26 | 2020-11-24 | 徐州徐工挖掘机械有限公司 | Bushing friction wear test device |
| CN111982731B (en) * | 2020-08-26 | 2023-09-26 | 徐州徐工挖掘机械有限公司 | Bushing friction and wear test device |
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