CN102419203A - Engine balance shaft noise testing device - Google Patents
Engine balance shaft noise testing device Download PDFInfo
- Publication number
- CN102419203A CN102419203A CN2011104187969A CN201110418796A CN102419203A CN 102419203 A CN102419203 A CN 102419203A CN 2011104187969 A CN2011104187969 A CN 2011104187969A CN 201110418796 A CN201110418796 A CN 201110418796A CN 102419203 A CN102419203 A CN 102419203A
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- shaft
- balance shaft
- balancing shaft
- balancing
- positioning tool
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Abstract
The invention discloses an engine balance shaft noise testing device. The device comprises a pedestal, a workbench, a guide rail, a balance shaft positioning tool, a balance shaft driving device, a balance shaft fixing device, a noise detecting device, an accompanied balance shaft and a hydraulic system, wherein the guide rail is arranged on the workbench; the balance shaft positioning tool is glidingly arranged on the guide rail; the hydraulic system is used for providing hydraulic oil with certain pressure and temperature to the balance shaft to be tested; the accompanied balance shaft is arranged below the balance shaft positioning tool; the balance shaft driving device is arranged in a box body on the right side of the workbench; the noise detecting device is arranged on the side wall on the inner side of the box body; an oil tank providing the hydraulic oil to the accompanied balance shaft is arranged at the position, corresponding to the noise detecting device, below the workbench; and the oil tank is connected with an oil tank lifting device. The engine balance shaft noise testing device is easy to operate and convenient to use, can conveniently and accurately test the performance of a balance shaft and has a great significance for improving the quality of balance shafts.
Description
Technical field
The present invention relates to the mechanical test field, particularly a kind of balance shaft of engine noise proving installation that the performance of balancing shaft is detected.
Background technology
In the working cycle of engine, the movement velocity of piston is very fast, and speed is very inhomogeneous.At last bottom dead center position, the speed of piston is zero, and reaches the highest in last lower dead center position intermediate speed.Because piston is done high-speed straight-line motion repeatedly in cylinder, must on piston, piston pin and connecting rod, produce very big inertial force.At the counterweight that disposes on the connecting rod these inertial force of balance effectively. but the counterweight on the connecting rod only some moving-mass participate in rectilinear motion, another part is participated in rotation.Except last bottom dead center position, various inertial force can not be by complete equipilibrium, the vibration that made engine producing.In order to eliminate vibration, the mode that generally adopts is to increase a balancing shaft to solve.Balance shaft assembly mainly is installed on motor body; The caused amount of unbalance of bent axle piston when being used for the balanced engine high speed rotating; So there is amount of unbalance balancing shaft in itself, along with the rising of rotating speed, because the balance shaft assembly that amount of unbalance causes vibration is inevitable and increasing.Test for the balance shaft assembly monomer both domestic and external seldom normally is installed on this scheme of straightway testing on the motor body with balance shaft assembly, but needs in this scheme to adopt the corresponding motor body of balancing shaft, and volume is too huge.Therefore, the conditional request of place and the test of test than higher, is unfavorable for the performance of balancing shaft is tested fast.
Summary of the invention
The objective of the invention is to adopt and the corresponding motor body of balancing shaft to needs in the test that exists in the existing balancing shaft test described in the background technology; Volume is too huge; To place and Test Condition Requirements problem of higher, a kind of balance shaft of engine noise proving installation that can solve foregoing problems is provided.
The technical scheme that can realize aforementioned goal of the invention is following:
A kind of balance shaft of engine noise proving installation; The hydraulic system that it comprises base, worktable, be arranged at guide rail on the worktable, slide and be arranged at balancing shaft positioning tool, balancing shaft drive unit, balancing shaft stationary installation, noise detection device on the guide rail, accompany the examination balancing shaft and the hydraulic oil of certain pressure and temperature is provided for balancing shaft to be measured; Described balancing shaft stationary installation is the cylinder that rotatably compresses that is arranged on the balancing shaft positioning tool; Described below of accompanying the examination balancing shaft to be arranged at the balancing shaft positioning tool; The balancing shaft drive unit is arranged in the casing on worktable right side; Described noise detection device is arranged on the sidewall of box inside; Below worktable, with the corresponding position of noise detection device promising fuel tank of accompanying the examination balancing shaft that hydraulic oil is provided is set, fuel tank is connected with the fuel tank lifting gear, and it is connected balancing shaft positioning tool and driving along the frock drive unit that guide rail moves.
The below that is positioned at noise detection device on the described worktable is provided with travel switch.
Described balancing shaft positioning tool is provided with pilot hole, and described box inside sidewall is provided with and cooperates the positioning cylinder that balancing shaft is positioned with this pilot hole.
Described fuel tank lifting gear comprises the cylinder that is arranged at fuel tank bottom and fuel tank is led and spacing guide rod.
Be provided with well heater and thermometer in the described fuel tank.
Described balancing shaft positioning tool is provided with idle pulley; Idle pulley and balance shaft assembly to be measured and accompany examination balance shaft assembly engagement; Described balancing shaft drive unit is a variable frequency drive motors, and the rotating shaft of idle pulley is connected with the output shaft of this variable frequency drive motors through shaft coupling.
Described frock drive unit is a lead screw transmission mechanism.
To be balance shaft of engine noise proving installation treating when surveying balancing shaft and making an experiment the advantage of balance shaft of engine noise proving installation of the present invention; Balancing shaft to be measured is assemblied in the upper surface of balancing shaft positioning tool; With accompanying the examination balancing shaft to be assemblied in the lower surface of balancing shaft positioning tool; Be symmetrical set through this, the vertical tremor when balancing out the balancing shaft rotation detects balancing shaft noise condition under certain rotating speed through noise detection device then; Through the standard value of setting, judge whether balancing shaft to be measured is qualified.When making an experiment, adopt earlier work piece hoisting mechanism that balancing shaft to be measured is positioned on the balancing shaft positioning tool, according to idle pulley, balancing shaft to be measured and accompany the alignment marker manual work on the gear on the examination balancing shaft to align; Align through this; Amount of unbalance when balancing out the balancing shaft rotation to greatest extent on vertical direction and the horizontal direction makes testing result more reliable, closes then to be arranged at the outside hatch door of balance shaft of engine noise proving installation; Through rotatably compressing cylinder balancing shaft to be measured is compressed; Make the balancing shaft positioning tool be fed to the below of specifying noise detection device through described frock drive unit, trigger travel switch, the cylinder push-rod of balancing shaft positioning tool top stretches out then; The positioning element of push rod end enters into the pilot hole on the balancing shaft positioning tool, and the balancing shaft positioning tool is positioned.Accompany the examination balancing shaft to immerse in the oil for accompanying the examination balancing shaft to provide the fuel tank of hydraulic oil to rise, making, hydraulic system begins fuel feeding; Variable frequency drive motors low speed rotation then achieves a butt joint with shaft coupling in the idle pulley rotating shaft, then according to test specification; Variable frequency drive motors is to be measured and accompany test specimen to carry out the rotating speed loading; Noise detection device detects the noise that produces when balancing shaft to be measured rotates under certain rotating speed, compares through noise measuring result and standard value, judges whether balancing shaft to be measured is qualified.The main amount of unbalance of horizontal direction and vertical direction made test findings more reliable when balance shaft of engine noise proving installation of the present invention accompanied the examination balancing shaft to offset the balancing shaft rotation through setting, tested occupation space simultaneously and significantly reduced; The environmental requirement of test also reduces greatly, reduces the difficulty of test greatly, has reduced experimentation cost; Through hatch door is set, experimental enviroment is enclosed in the certain space, avoid the interference of environmental factor; Whole experiment adopts dynamo-electric control automatically, the artificial participation seldom, and automaticity is high; Both practice thrift human resources, improved the efficient and the accuracy rate of test again.
Description of drawings
Fig. 1 is the structural representation of balancing shaft testing table of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is a balance shaft assembly positioning tool synoptic diagram;
Fig. 4 is the Oiltank structure synoptic diagram;
Among the figure, 1 is base, and 2 is worktable, and 3 is guide rail, and 4 is the balancing shaft positioning tool, and 5 is noise detection device; 6 for rotatably compressing cylinder, and 7 is casing, and 8 is fuel tank, and 9 is hydraulic system, and 10 is travel switch, and 11 is pilot hole; 12 is positioning cylinder, and 13 is cylinder, and 14 is guide rod, and 15 is well heater, and 16 is thermometer, and 17 is idle pulley; 18 is the balancing shaft drive unit, and 19 is shaft coupling, and 20 is lead screw transmission mechanism, and 21 is balancing shaft to be measured, and 22 for accompanying the examination balancing shaft.
Embodiment
Referring to figs. 1 through a kind of balance shaft of engine noise proving installation shown in Figure 4; The hydraulic system 9 that it comprises base 1, worktable 2, be arranged at guide rail 3 on the worktable 2, slide and be arranged at balancing shaft positioning tool 4, balancing shaft drive unit 18, balancing shaft stationary installation, noise detection device 5 on the guide rail 3, accompany examination balancing shaft 22 and the hydraulic oil of certain pressure and temperature is provided for balancing shaft 21 to be measured; Described balancing shaft stationary installation is to be arranged to rotatably compress cylinder 6 on the balancing shaft positioning tool 4; Described below of accompanying examination balancing shaft 22 to be arranged at balancing shaft positioning tool 4; Balancing shaft drive unit 18 is arranged in the casing 7 on worktable 2 right sides; Described noise detection device 5 is arranged on the sidewall of casing 7 inboards; Below worktable 2, with noise detection device 5 corresponding positions promising fuel tank 8 of accompanying examination balancing shaft 22 that hydraulic oil is provided is set, fuel tank 8 is connected with fuel tank 8 lifting gears, and it is connected balancing shaft positioning tool 4 and driving along the frock drive unit that guide rail 3 moves.
On the basis of aforementioned schemes, further, for the ease of realizing robotization control, the below that is positioned at noise detection device 5 on the described worktable 2 is provided with travel switch 10; In order when balancing shaft is carried out performance test, to be convenient to balancing shaft positioning tool 4 is fixed; Described balancing shaft positioning tool 4 is provided with pilot hole 11, and described casing 7 inside side walls are provided with and cooperate the positioning cylinder 12 that balancing shaft is positioned with this pilot hole 11; For the ease of the automatically lifting of control fuel tank 8, described fuel tank 8 lifting gears comprise the cylinder 13 that is arranged at fuel tank 8 bottoms and fuel tank 8 are led and spacing guide rod 14; Be provided with well heater 15 and thermometer 16 in the described fuel tank 8; Described balancing shaft positioning tool 4 is provided with idle pulley 17; Idle pulley 17 is with balancing shaft 21 assemblies to be measured and accompany the engagement of examination balancing shaft 22 assemblies; Described balancing shaft drive unit 18 is a variable frequency drive motors, and the rotating shaft of idle pulley 17 is connected with the output shaft of this variable frequency drive motors through shaft coupling 19; Move to the below of noise detection device 5 for the ease of driven equilibrium axle positioning tool 4 along guide rail 3, it is detected, described frock drive unit is a lead screw transmission mechanism 20.
Claims (7)
1. balance shaft of engine noise proving installation; It is characterized in that: the hydraulic system that it comprises base, worktable, be arranged at guide rail on the worktable, slide and be arranged at balancing shaft positioning tool, balancing shaft drive unit, balancing shaft stationary installation, noise detection device on the guide rail, accompany the examination balancing shaft and the hydraulic oil of certain pressure and temperature is provided for balancing shaft to be measured; Described balancing shaft stationary installation is the cylinder that rotatably compresses that is arranged on the balancing shaft positioning tool; Described below of accompanying the examination balancing shaft to be arranged at the balancing shaft positioning tool; The balancing shaft drive unit is arranged in the casing on worktable right side; Described noise detection device is arranged on the sidewall of box inside; Below worktable, with the corresponding position of noise detection device promising fuel tank of accompanying the examination balancing shaft that hydraulic oil is provided is set, fuel tank is connected with the fuel tank lifting gear, and it is connected balancing shaft positioning tool and driving along the frock drive unit that guide rail moves.
2. balance shaft of engine noise proving installation according to claim 1, it is characterized in that: the below that is positioned at noise detection device on the described worktable is provided with travel switch.
3. balance shaft of engine noise proving installation according to claim 1; It is characterized in that: described balancing shaft positioning tool is provided with pilot hole, and described box inside sidewall is provided with and cooperates the positioning cylinder that balancing shaft is positioned with this pilot hole.
4. balance shaft of engine noise proving installation according to claim 1 is characterized in that: described fuel tank lifting gear comprises the cylinder that is arranged at fuel tank bottom and fuel tank is led and spacing guide rod.
5. balance shaft of engine noise proving installation according to claim 1 is characterized in that: be provided with well heater and thermometer in the described fuel tank.
6. balance shaft of engine noise proving installation according to claim 1; It is characterized in that: described balancing shaft positioning tool is provided with idle pulley; Idle pulley and balance shaft assembly to be measured and accompany examination balance shaft assembly engagement; Described balancing shaft drive unit is a variable frequency drive motors, and the rotating shaft of idle pulley is connected with the output shaft of this variable frequency drive motors through shaft coupling.
7. balance shaft of engine noise proving installation according to claim 1 is characterized in that: described frock drive unit is a lead screw transmission mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110418796 CN102419203B (en) | 2011-12-15 | 2011-12-15 | Engine balance shaft noise testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110418796 CN102419203B (en) | 2011-12-15 | 2011-12-15 | Engine balance shaft noise testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102419203A true CN102419203A (en) | 2012-04-18 |
| CN102419203B CN102419203B (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110418796 Active CN102419203B (en) | 2011-12-15 | 2011-12-15 | Engine balance shaft noise testing device |
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| CN (1) | CN102419203B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235262A (en) * | 2013-04-24 | 2013-08-07 | 无锡市朗迪测控技术有限公司 | System for testing high-temperature abrupt variable-speed performance of generator |
| CN104279151A (en) * | 2014-09-17 | 2015-01-14 | 浙江工业大学 | Noise feature detection device of hydraulic pump |
| CN104279152A (en) * | 2014-09-17 | 2015-01-14 | 浙江工业大学 | Device for testing operating state of hydraulic pump on basis of copying measurement |
| CN105241542A (en) * | 2015-08-30 | 2016-01-13 | 盐城工学院 | Frictional screaming noise generation method and device |
| CN107478322A (en) * | 2017-07-12 | 2017-12-15 | 浙江亚太机电股份有限公司 | A kind of hydraulic control unit Noise Testing |
| CN111122084A (en) * | 2019-12-30 | 2020-05-08 | 清华大学 | Crankshaft vibration testing device and method |
| CN113776793A (en) * | 2021-08-13 | 2021-12-10 | 江铃汽车股份有限公司 | Balance shaft module assembly comprehensive performance detection device and detection method |
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| FR2809813A1 (en) * | 2000-05-31 | 2001-12-07 | Renault Automation Comau | Balancing shaft holding method and equipment for out of balance measurements, comprises V blocks and holding arms which secure the shaft with the center of gravity in a known position |
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2011
- 2011-12-15 CN CN 201110418796 patent/CN102419203B/en active Active
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| FR2809813A1 (en) * | 2000-05-31 | 2001-12-07 | Renault Automation Comau | Balancing shaft holding method and equipment for out of balance measurements, comprises V blocks and holding arms which secure the shaft with the center of gravity in a known position |
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| 罗福强: "用平衡轴降低高速往复式内燃机的振动和噪声", 《内燃机工程》, vol. 23, no. 1, 31 December 2002 (2002-12-31), pages 72 - 74 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235262A (en) * | 2013-04-24 | 2013-08-07 | 无锡市朗迪测控技术有限公司 | System for testing high-temperature abrupt variable-speed performance of generator |
| CN103235262B (en) * | 2013-04-24 | 2015-08-19 | 无锡市朗迪测控技术有限公司 | Generator high temperature sudden turn of events speed Performance Test System |
| CN104279151A (en) * | 2014-09-17 | 2015-01-14 | 浙江工业大学 | Noise feature detection device of hydraulic pump |
| CN104279152A (en) * | 2014-09-17 | 2015-01-14 | 浙江工业大学 | Device for testing operating state of hydraulic pump on basis of copying measurement |
| CN105241542A (en) * | 2015-08-30 | 2016-01-13 | 盐城工学院 | Frictional screaming noise generation method and device |
| CN107478322A (en) * | 2017-07-12 | 2017-12-15 | 浙江亚太机电股份有限公司 | A kind of hydraulic control unit Noise Testing |
| CN107478322B (en) * | 2017-07-12 | 2019-07-16 | 浙江亚太机电股份有限公司 | A kind of hydraulic control unit Noise Testing |
| CN111122084A (en) * | 2019-12-30 | 2020-05-08 | 清华大学 | Crankshaft vibration testing device and method |
| CN111122084B (en) * | 2019-12-30 | 2021-07-13 | 清华大学 | Crankshaft vibration testing device and method |
| CN113776793A (en) * | 2021-08-13 | 2021-12-10 | 江铃汽车股份有限公司 | Balance shaft module assembly comprehensive performance detection device and detection method |
| CN113776793B (en) * | 2021-08-13 | 2023-10-20 | 江铃汽车股份有限公司 | Balance shaft module assembly comprehensive performance detection device and detection method |
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|---|---|
| CN102419203B (en) | 2013-08-14 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120418 Assignee: CHANGZHOU VRAIC AUTOMATIC EQUIPMENT TECHNOLOGY CO.,LTD. Assignor: Zhu Liucun Contract record no.: 2015320000398 Denomination of invention: Engine balance shaft noise testing device Granted publication date: 20130814 License type: Exclusive License Record date: 20150601 |
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Effective date of registration: 20180628 Address after: 213000 Changzhou New Energy Vehicle Research Institute, No. 178 ERON South Road, Zhong Lou District, Changzhou, Jiangsu 608 Patentee after: CHANGZHOU VRAIC AUTOMATIC EQUIPMENT TECHNOLOGY CO.,LTD. Address before: 213014 ERON road high tech Innovation Service Center building 802, bell tower Economic Development Zone, Changzhou, Jiangsu Patentee before: Zhu Liucun |
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Effective date of registration: 20230525 Address after: No.68 Xiangzhang Road, Zhonglou Development Zone, Changzhou City, Jiangsu Province, 213000 Patentee after: CHANGZHOU CHANGRUI AUTOMOBILE PARTS Co.,Ltd. Address before: 213000 Changzhou New Energy Vehicle Research Institute, No. 178 ERON South Road, Zhong Lou District, Changzhou, Jiangsu 608 Patentee before: CHANGZHOU VRAIC AUTOMATIC EQUIPMENT TECHNOLOGY CO.,LTD. |
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