CN203858118U - Durability testing device for shock absorber - Google Patents
Durability testing device for shock absorber Download PDFInfo
- Publication number
- CN203858118U CN203858118U CN201420209407.0U CN201420209407U CN203858118U CN 203858118 U CN203858118 U CN 203858118U CN 201420209407 U CN201420209407 U CN 201420209407U CN 203858118 U CN203858118 U CN 203858118U
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- Prior art keywords
- vibration damper
- hydraulic cylinder
- test unit
- portal frame
- endurance quality
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- Expired - Lifetime
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 239000006096 absorbing agent Substances 0.000 title abstract description 11
- 230000035939 shock Effects 0.000 title abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a durability testing device for shock absorbers. The durability testing device comprises a portal frame (1), a hydraulic cylinder (2) and a hydraulic servo control system which controls operation of the hydraulic cylinder (2), wherein upper ends of tested shock absorbers (5) are fixedly connected with a cross beam of the portal frame (1), the hydraulic cylinder (2) is arranged below the tested shock absorbers (5), a moving end of a piston rod of the hydraulic cylinder (2) is connected with lower ends of the tested shock absorbers (5), and the cylinder body of the hydraulic cylinder (2) is provided with a linear guide mechanism (3). The durability testing device for shock absorbers provided by the utility model is simple in structure, is more consistent with the actual working state of the whole vehicle, has high control measurement accuracy, and has high practicality.
Description
Technical field
The utility model relates to vibration testing device, more particularly, relates to a kind of test unit of testing automobile vibration damper endurance quality.
Background technology
Vibration damper is durability test bed, is a kind of endurance quality testing equipment of simulation vibration damper in automobile practical working situation, and vibration damper is done to performance degradation monitoring in the test of vibration damper endurance quality simultaneously.
At present, domestic main durability test stand of shock absorber is mainly is with eccentric electric system, this testing table lacks relevant displacement sensor, cause this kind of equipment in the time regulating vibration damper point midway and test trip, need to measure by the eccentric wheel of repeatedly adjusting motor, site error is very big.Can not on shock absorber piston rod, connect power sensing element, lack the monitoring means that resistance of shock absorber performance changes in long duration test process.And it is large to take up room, in process of the test, can produce higher mechanicalness noise, make testing crew can not accurately judge the abnormal sound source in vibration damper long duration test process.Existing durability test bed, in function and performance, there are many defects, can not simulate well real vehicle duty, be subject to the impact of external environment condition, can accurately not reflect all stressing conditions of sample, the accuracy of test figure is caused to certain influence.
Utility model content
The purpose of this utility model is to solve the problem that prior art exists, and provides one more to meet car load actual working state, the vibration damper endurance quality test unit that accuracy is high.
To achieve these goals, the technical scheme that the utility model is taked is this vibration damper endurance quality test unit that provides, comprise portal frame, hydraulic cylinder and control the hydraulic servo control system that described hydraulic cylinder operates, the upper end of tested vibration damper is fixedly connected with the crossbeam of described portal frame, described hydraulic cylinder is placed in the below of described vibration damper, and the piston rod movement end of described hydraulic cylinder is connected with the lower end of described vibration damper, and described hydraulic cylinder body is provided with linear guiding mechanism.
For making technique scheme more detailed and concrete, the utility model also provides following further optimal technical scheme, to obtain satisfied practical function:
Described linear guiding mechanism comprises and is positioned at two guide poles of described hydraulic cylinder both sides and the guide bearing matching with described guide pole, described guide bearing is fixedly connected with on the cylinder body with described hydraulic cylinder by fixed support, the upper end of described two guide poles and the piston rod end of described hydraulic cylinder connect by upper junction plate, and the lower end of described guide pole connects by lower connecting plate.
Described upper junction plate is provided with the mount pad that described vibration damper is installed.
Described mount pad is provided with at least two vibration damper fixed orifices.
Described vibration damper is installed in described vibration damper fixed orifice by the connection bracket of being located on its housing.
Described each vibration damper upper end is fixedly connected on the crossbeam of described portal frame by holder.
On the crossbeam of described portal frame, be provided with power sensor.
This new type vibration isolator endurance quality test unit compared with prior art, has the following advantages: vibration damper is arranged between portal frame and hydraulic cylinder by whole vehicle state, loads from shock absorber casing lower end, makes vibration damper long duration test more meet car load actual working state; Linear guiding mechanism is directly installed on hydraulic cylinder body, is used for supporting and guided-moving parts, make it do linear reciprocating motion by given direction, to eliminate the abnormal side force that hydraulic cylinder bears and to prevent that hydraulic cylinder piston rod from rotating; By the power installation of sensors in vibration damper long duration test, on testing table portal frame, the sensor of exerting all one's strength becomes static monitoring from dynamic monitoring, and control measurement is more accurate.
Brief description of the drawings
Below the mark in the accompanying drawing of this instructions expressed content and figure is briefly described:
Fig. 1 is the utility model endurance quality test unit structural representation;
Fig. 2 is the utility model linear guiding mechanism schematic diagram;
In figure, be labeled as: 1, portal frame, 2, hydraulic cylinder, 3, linear guiding mechanism, 31, lower connecting plate, 32, guide bearing, 33, guide pole, 34, upper junction plate, 35, fixed support, 4, mount pad, 5, vibration damper, 6, holder, 7, connection bracket.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail.
The utility model vibration damper endurance quality test unit, durability test stand of shock absorber taking hydraulic cylinder band linear guiding mechanism as main device, take full advantage of the powerful control function of Hydrauservo System, taking sine-wave superimposed theory as basis, meet the requirement of vibration damper double-acting endurance.As shown in Figure 1, this device comprises portal frame 1, hydraulic cylinder 2, and operate by hydraulic servo control system control hydraulic cylinder 2, hydraulic servo control system is Waveform Control after the sine wave of two different frequencies and amplitude is superposeed, by sine-wave superimposed theory, two sine waves of upper and lower side that vibration damper double-acting endurance is required superpose, and generate the displacement drive signal of hydraulic cylinder 2.The upper end of tested vibration damper 5 is fixedly connected on the crossbeam of portal frame 1, hydraulic cylinder 2 is placed in the below of vibration damper 5, directly be fixed on iron floor, and the piston rod movement end of hydraulic cylinder 2 is connected with the lower end of vibration damper 5, be that vibration damper 5 is arranged between portal frame 1 and hydraulic cylinder 2 by whole vehicle state, hydraulic cylinder 2 loads motion from vibration damper 5 housing lower ends, and portal frame 1 is as the fixed mount of vibration damper 5 piston rods.The vibration damper endurance quality test unit that this structure makes more meets car load actual working state.
Hydraulic cylinder 2 cylinder bodies are provided with linear guiding mechanism 3, to eliminate the abnormal side force that hydraulic cylinder bears and to prevent hydraulic cylinder piston rod rotation.
As shown in Figure 2, the linear guiding mechanism 3 in the utility model comprises and is positioned at two guide poles 33 of hydraulic cylinder 2 both sides and the guide bearing 32 matching with guide pole 33, and guide bearing 32 is fixedly connected with on the cylinder body with hydraulic cylinder 2 by fixed support 35.The piston rod end of the upper end of two guide poles 33 and hydraulic cylinder 2 connects by upper junction plate 34, synchronizes and moves up and down with the piston rod of hydraulic cylinder 2.The lower end of guide pole 33 connects by lower connecting plate 31, and lower connecting plate 31 is the arcuate structure around casing wall.Linear guiding mechanism is directly installed on hydraulic cylinder 2 cylinder bodies, is used for supporting and guided-moving parts, make it do linear reciprocating motion by given direction, to eliminate the abnormal side force that hydraulic cylinder 2 bears and to prevent that hydraulic cylinder 2 piston rods from rotating.
On upper junction plate 34, be provided with the mount pad 4 of mounting dampers 5.Mount pad 4 is provided with at least two vibration damper fixed orifices, and mount pad 4 is attended class at least two vibration dampers 5 are installed simultaneously, and the embodiment that the utility model provides is for installing two vibration dampers 5.Vibration damper 5 is installed in vibration damper fixed orifice by the connection bracket 7 of being located on its housing, and connection bracket 7 is L shaped structure, is connected on vibration damper 5 housings on one side, in the fixed orifice of another side fixed installation and mount pad.The upper end of each vibration damper 5 is fixedly connected on the crossbeam of portal frame 1 by holder 6.
On the crossbeam of portal frame 1, be provided with power sensor.The crossbeam that power sensor in vibration damper long duration test is moved on to testing table portal frame 1 from hydraulic cylinder 2 piston rod position is installed, and the sensor of exerting all one's strength becomes static monitoring from dynamic monitoring, avoids vibration error and the abnormal signal of power sensor.
Process of the test: vibration damper complement is arranged between hydraulic cylinder 2 and portal frame 1 by whole vehicle state, by double-acting endurance requirement, the loading sine wave of vibration damper upper and lower side is superposeed, generate Driven by Hydraulic Cylinder signal, hydraulic cylinder carries out displacement loading from vibration damper 5 lower ends.By the size variation of power Sensor monitoring vibration damper 5 damping forces, to reach the object of examination vibration damper permanance.
The endurance quality test unit of the utility model vibration damping, directly loads from vibration damper 5 lower ends, makes vibration damper long duration test more meet car load actual working state; Linear guiding mechanism 3 is directly installed on hydraulic cylinder 2 cylinder bodies, be used for supporting and guided-moving parts, make it do linear reciprocating motion by given direction, to eliminate the abnormal side force that hydraulic cylinder 2 bears and to prevent hydraulic cylinder piston rod rotation, avoid vibration error and the abnormal signal of power sensor; By the power installation of sensors in vibration damper long duration test, on testing table portal frame 1, the sensor of exerting all one's strength becomes static monitoring from dynamic monitoring, and control measurement is more accurate.
By reference to the accompanying drawings the utility model is exemplarily described above; but the utility model is not limited to aforesaid way; as long as adopt the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out or directly apply to other occasion, all drop in protection domain of the present utility model.
Claims (7)
1. a vibration damper endurance quality test unit, comprise portal frame (1), hydraulic cylinder (2) and control the hydraulic servo control system that described hydraulic cylinder (2) operates, it is characterized in that: the upper end of tested vibration damper (5) is fixedly connected with the crossbeam of described portal frame (1), described hydraulic cylinder (2) is placed in the below of described vibration damper (5), and the piston rod movement end of described hydraulic cylinder (2) is connected with the lower end of described vibration damper (5), described hydraulic cylinder (2) cylinder body is provided with linear guiding mechanism (3).
2. according to vibration damper endurance quality test unit claimed in claim 1, it is characterized in that: described linear guiding mechanism (3) comprises the guide bearing (32) that is positioned at two guide poles (33) of described hydraulic cylinder (2) both sides and matches with described guide pole (33), described guide bearing (32) is fixedly connected on the cylinder body of described hydraulic cylinder (2) by fixed support (35), the piston rod end of the upper end of described two guide poles (33) and described hydraulic cylinder (2) connects by upper junction plate (34), the lower end of described guide pole (33) connects by lower connecting plate (31).
3. according to vibration damper endurance quality test unit claimed in claim 2, it is characterized in that: described upper junction plate (34) is provided with the mount pad (4) that described vibration damper (5) is installed.
4. according to vibration damper endurance quality test unit claimed in claim 3, it is characterized in that: described mount pad (4) is provided with at least two vibration damper fixed orifices.
5. according to vibration damper endurance quality test unit claimed in claim 4, it is characterized in that: described vibration damper (5) is installed in described vibration damper fixed orifice by the connection bracket (7) of being located on its housing.
6. according to vibration damper endurance quality test unit claimed in claim 5, it is characterized in that: described each vibration damper (5) upper end is fixedly connected on the crossbeam of described portal frame (1) by holder (6).
7. according to the vibration damper endurance quality test unit described in claim 1 to 6 any one, it is characterized in that: on the crossbeam of described portal frame (1), be provided with power sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209407.0U CN203858118U (en) | 2014-04-26 | 2014-04-26 | Durability testing device for shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209407.0U CN203858118U (en) | 2014-04-26 | 2014-04-26 | Durability testing device for shock absorber |
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| Publication Number | Publication Date |
|---|---|
| CN203858118U true CN203858118U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420209407.0U Expired - Lifetime CN203858118U (en) | 2014-04-26 | 2014-04-26 | Durability testing device for shock absorber |
Country Status (1)
| Country | Link |
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| CN (1) | CN203858118U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316307A (en) * | 2014-10-24 | 2015-01-28 | 奇瑞汽车股份有限公司 | Fatigue test device and method of sliding column assembly |
| CN107271171A (en) * | 2017-07-13 | 2017-10-20 | 江西洪都航空工业集团有限责任公司 | Modular tests framework |
| CN108181100A (en) * | 2017-12-30 | 2018-06-19 | 北华大学 | Simulate the electric vehicle hydraulic buffer reliability test of actual condition loading |
| CN111693273A (en) * | 2020-07-15 | 2020-09-22 | 苏州东菱振动试验仪器有限公司 | Multifunctional mechanical test equipment and mechanical test method |
| CN112254944A (en) * | 2020-10-19 | 2021-01-22 | 奇瑞商用车（安徽）有限公司 | New energy automobile shock absorber assembly lower mounting bracket welding strength test device and test method |
| CN109991022B (en) * | 2017-12-29 | 2024-02-06 | 上汽通用五菱汽车股份有限公司 | Dust endurance test rack for shock absorber |
-
2014
- 2014-04-26 CN CN201420209407.0U patent/CN203858118U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316307A (en) * | 2014-10-24 | 2015-01-28 | 奇瑞汽车股份有限公司 | Fatigue test device and method of sliding column assembly |
| CN107271171A (en) * | 2017-07-13 | 2017-10-20 | 江西洪都航空工业集团有限责任公司 | Modular tests framework |
| CN109991022B (en) * | 2017-12-29 | 2024-02-06 | 上汽通用五菱汽车股份有限公司 | Dust endurance test rack for shock absorber |
| CN108181100A (en) * | 2017-12-30 | 2018-06-19 | 北华大学 | Simulate the electric vehicle hydraulic buffer reliability test of actual condition loading |
| CN108181100B (en) * | 2017-12-30 | 2019-09-06 | 北华大学 | Simulate the electric vehicle hydraulic buffer reliability test of actual condition load |
| CN111693273A (en) * | 2020-07-15 | 2020-09-22 | 苏州东菱振动试验仪器有限公司 | Multifunctional mechanical test equipment and mechanical test method |
| CN112254944A (en) * | 2020-10-19 | 2021-01-22 | 奇瑞商用车（安徽）有限公司 | New energy automobile shock absorber assembly lower mounting bracket welding strength test device and test method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |
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| CX01 | Expiry of patent term |