CN106762985A - A kind of hydraulic cylinder test fixture - Google Patents
A kind of hydraulic cylinder test fixture Download PDFInfo
- Publication number
- CN106762985A CN106762985A CN201710015417.9A CN201710015417A CN106762985A CN 106762985 A CN106762985 A CN 106762985A CN 201710015417 A CN201710015417 A CN 201710015417A CN 106762985 A CN106762985 A CN 106762985A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- test
- plate
- test fixture
- lower plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/855—Testing of fluid pressure systems
Abstract
The invention discloses a kind of hydraulic cylinder test fixture, the upper plate connected by some pull bars and lower plate, upper plate are provided with longitudinal hole, the middle plate of parallel lower plate are provided between upper plate and lower plate.A kind of hydraulic cylinder test fixture of the invention, is made up of three pieces of upper, middle and lower plate body, the center on straight line, centering and balance beneficial to three hydraulic cylinders；Upper plate center through hole is used to install loading hydraulic cylinder, and rebound is used to carry installs leveling test hydraulic cylinder, and four actual pin leveling operating modes are simulated by the loading force of loading hydraulic cylinder, can be used for two kinds of difference in functionality tests of test hydraulic cylinder；There is specific aim to test test hydraulic cylinder, and carry out performing leak test to loading hydraulic cylinder simultaneously, there is specific aim to have no loss of generality again for test；Its simple structure, compact to design, intensity are big, ensure that the axiality of installation, can avoid the influence of horizontal checkout test bed oil gravity, realize that diversity is tested, with very strong practicality and wide applicability.
Description
Technical field
The present invention relates to a kind of test fixture, and in particular to a kind of hydraulic cylinder test fixture.
Background technology
With the continuous expansion continued to develop with progressive and application field with scope of hydraulic technique, hydraulic drive and control
System becomes increasingly complex in itself, it is desirable to transmit that dynamic range is bigger, control accuracy is higher, system flexibilityization and the various performances of system
It is required that higher, used as most important executive component in hydraulic system, hydraulic energy is converted into mechanical energy to hydraulic cylinder by it.Mesh
Before, hydraulic cylinder is widely used in Practical Project, therefore the quality of hydraulic cylinder performance directly affects the as received basis of hydraulic system
Amount, sealing property research is carried out to hydraulic cylinder, to further improving and improving hydraulic system, improve motion and control accuracy and
Functional reliability is very important, additionally, before hydraulic cylinder dispatches from the factory, it is that inspection product is effective that simulation operating mode carries out experiment
Means.Test tool is the test bed important component of hydraulic cylinder, its installation for being mainly used in test hydraulic cylinder
It is fixed.
At present, the test tool of hydraulic cylinder is generally to be horizontally mounted, and hydraulic cylinder level is fixed for test, due to hydraulic oil certainly
The influence of body gravity, to a certain extent, there is deviation in the result of test, simultaneously as the limitation of test, most hydraulic pressure
What a certain performance of hydraulic cylinder or hydraulic cylinder that cylinder test tool is directed to a certain specification was designed, purpose list
One, testing efficiency is not high.
The content of the invention
It is to solve the deficiencies in the prior art, it is an object of the invention to provide a kind of influence factor is small, high precision, existing logical
Has targetedly hydraulic cylinder test fixture again with property.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：
A kind of hydraulic cylinder test fixture, the upper plate connected by some pull bars and lower plate；The upper plate is provided with longitudinal hole, described
The middle plate of parallel lower plate is provided between upper plate and lower plate.
Above-mentioned through hole is overlapped with the center line of middle plate.
Above-mentioned middle plate surface is provided with disk in the fixation of isocenter, and bottom surface is provided with the fixation that 2 Ge Yi centers are symmetric points
Disk.
Above-mentioned through hole and the loading hydraulic cylinder equal diameter for accommodating.
Above-mentioned pull bar vertically connects upper plate and lower plate.
Above-mentioned upper plate, lower plate, middle plate are all double-decker.
Further, some reinforcements are provided between above-mentioned double-decker.
Above-mentioned lower board surface is provided with rebound.
Above-mentioned lower plate bottom is provided with pedestal.
Above-mentioned pull bar is for 4 and symmetrical two-by-two.
The installation form of the vertical placement that test fixture is used, it is to avoid hydraulic cylinder cavity volume inner fluid gravity is to test result
Influence.
Upper plate plays support.
The fixed upper disk of through hole collaboration, for installing loading hydraulic cylinder；Through hole and loading hydraulic cylinder equal diameter, limit loading
Hydraulic cylinder is only in longitudinal effect, it is to avoid its horizontal amplitude of oscillation.With the through hole and fixed upper disk of center line so that under loading hydraulic cylinder
Pressure acts on fixed upper disk（Or middle plate）Central point.
The fixed lower wall of rebound collaboration, for installing test hydraulic cylinder；Fixed lower wall is used for the stress with test hydraulic cylinder
Contact；Centrosymmetric fixed lower wall causes that test hydraulic cylinder force is identical.Test hydraulic cylinder plays leveling simultaneously.
Lower plate and pedestal play the whole tool structure of supporting.Upper plate, lower plate, middle plate use double-decker, bearing capacity
Greatly, reinforcement further strengthens support bearing.
The present invention is advantageous in that：
A kind of hydraulic cylinder test fixture of the invention, the main body of frock is made up of three pieces of upper, middle and lower plate body, in three pieces of plate bodys
The heart is in a straight line, centering and balance beneficial to three hydraulic cylinders；Upper plate center through hole is used to install loading hydraulic pressure
Cylinder, lower plate and rebound are used for carrying and install leveling test hydraulic cylinder, and reality is simulated by the loading force of loading hydraulic cylinder
Four pin leveling operating modes.
A kind of hydraulic cylinder test fixture of the invention can be used for two kinds of functional tests of hydraulic cylinder, to leveling acting hydraulic
There is cylinder specific aim to test, and carry out performing leak test to loading hydraulic cylinder simultaneously, and there is specific aim to have no loss of generality again for test；
Its simple structure, compact to design, intensity are big, ensure that the axiality of installation, can avoid horizontal checkout test bed oil weight
The influence of power, realizes that diversity is tested, with very strong practicality and wide applicability.
Brief description of the drawings
Fig. 1 is a kind of structural representation of hydraulic cylinder test fixture of the invention.
Fig. 2 is a kind of structural representation of the upper plate of hydraulic cylinder test fixture of the invention.
Fig. 3 is a kind of structural representation of the middle plate of hydraulic cylinder test fixture of the invention.
Fig. 4 is a kind of upward view of the middle plate structure schematic diagram of hydraulic cylinder test fixture of the invention.
Fig. 5 is a kind of structural representation of the lower plate of hydraulic cylinder test fixture of the invention.
The implication marked in accompanying drawing is as follows：1st, upper plate, 2, middle plate, 3 lower plates, 4, pull bar, 5, through hole, 6, disk in fixation, 7,
Rebound, 8, pedestal, 9, fixed lower wall.
Specific embodiment
Make specific introduction to the present invention below in conjunction with the drawings and specific embodiments.
A kind of hydraulic cylinder test fixture, upper plate 1 and lower plate 3 are connected by some pull bars 4, and middle plate 2 is parallel with lower plate 3, on
Plate 1 is provided with the through hole 5 with center line with middle plate 2.
Upper plate 1 is provided with and the isodiametric through hole 5 of loading hydraulic cylinder for accommodating.
The surface of middle plate 2 is provided with disk 6 in the fixation at same midpoint, and bottom surface is provided with 2 fixed lower walls 9 with midpoint as symmetric points.
Upper plate 1, lower plate 3, middle plate 2 are all double-decker, and some reinforcements are provided between double-decker.
The surface of lower plate 3 is provided with rebound 7, and the bottom of lower plate 3 is provided with pedestal 8.
It is Simplified flowsheet and force structure during actual fabrication, upper plate 1, middle plate 2, lower plate 3 are parallel to each other and center line is folded
Close, 4 pull bars 4 symmetrical two-by-two vertical be spirally connected upper plate 1 and lower plate 3.Frock is overall to use symmetrical structure, is further ensured that whole
Body is balanced and uniform force.
Three pieces of upper, middle and lower frame uses weldment, while proof strength, saves cost.
During specific test：
Loading hydraulic cylinder body is contained in through hole 5, and bottom is connected with fixed upper disk 6, and solid by the screwed hole of fixed upper disk 6
It is fixed.
Two test hydraulic cylinders are separately fixed on the rebound 7 in lower plate 3, the Central Symmetry in lower plate 3.
Loading hydraulic cylinder works above test hydraulic cylinder, and piston rod does not stop to act on middle plate 2, multiple by band piston
Motion in cylinder barrel, loading hydraulic pressure can be tested after times of exercise is reached by the frictional force of seal, abrasion, extrusion deformation
The sealing property of cylinder, draws optimal sealing system.
Two fixed Central Symmetries of lower wall 9, and the diameter of fixed lower wall 9 is identical with the bar footpath of two test hydraulic cylinders, plus
Plate 2 causes two test hydraulic cylinder equalization stress during carrier fluid cylinder pressure is passed through.Under this stress, other assemblies can be combined to surveying
Test solution cylinder pressure further carries out serial performance test, such as：Run-in test, startup pressure detecting, leak detection, pressure test
Deng.
Under the control of hydraulic control system, loading hydraulic cylinder is uniformly applied loading force by connected middle plate 2
To following two test hydraulic cylinders, test hydraulic cylinder is acted by its own additional mechanical power house system, by being connected
Controller test its performance.
Run-in test is done first before test hydraulic cylinder progressive can be tested, and is adjusted by the overflow valve on mechanical power house system
Whole pilot system pressure, makes hydraulic cylinder smoothly start.
When hydraulic cylinder is unloaded, passing ratio flow speed control valve has the small hydraulic oil of flow to flow into hydraulic cylinder rodless cavity in oil pipe,
As hydraulic oil is constantly flowed into, the pressure suffered by hydraulic cylinder rodless cavity also constantly rises, and can stretch out piston rod when rising to,
Until proximity switch, now the maximum pressure of pressure sensor reality is the startup pressure of tested hydraulic cylinder, general to start
Pressure is in 1bar-3bar.
Contacted with fixed lower wall 9 when piston rod is protruded upward, by the effect of loading hydraulic cylinder, make test hydraulic cylinder piston
Whether bar transfers to move downward, and by the motion for going round and beginning again, after off-test, carefully detects at each sealing leakage occur.
The on-load pressure of remote adjustment tested hydraulic cylinder is enabled the controller to by electricity liquid ratio relief valve, is carried out pressure-resistant
During experiment, 1.5 times of pressure is imposed, the dwell time reaches two minutes, i.e., pressure-resistant functional.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent or equivalent transformation
Technical scheme, all falls within protection scope of the present invention.
Claims (10)
1. a kind of hydraulic cylinder test fixture, it is characterised in that the upper plate and lower plate connected by some pull bars, the upper plate are provided with
Longitudinal hole, is provided with the middle plate of parallel lower plate between the upper plate and lower plate.
2. a kind of hydraulic cylinder test fixture according to claim 1, it is characterised in that the center line of the through hole and middle plate
Overlapping.
3. a kind of hydraulic cylinder test fixture according to claim 1, it is characterised in that the middle plate surface is provided with same center
Disk in the fixation of point, bottom surface is provided with the fixed lower wall that 2 Ge Yi centers are symmetric points.
4. a kind of hydraulic cylinder test fixture according to claim 1, it is characterised in that the through hole and the loading liquid for accommodating
Cylinder pressure equal diameter.
5. a kind of hydraulic cylinder test fixture according to claim 1, it is characterised in that the pull bar vertically connect upper plate and
Lower plate.
6. a kind of hydraulic cylinder test fixture according to claim 1, it is characterised in that the upper plate, lower plate, middle plate are all
Double-decker.
7. a kind of hydraulic cylinder test fixture according to claim 6, it is characterised in that if being provided between the double-decker
Dry reinforcement.
8. a kind of hydraulic cylinder test fixture according to claim 1, it is characterised in that the lower board surface is provided with transition
Plate.
9. a kind of hydraulic cylinder test fixture according to claim 1, it is characterised in that the lower plate bottom is provided with pedestal.
10. a kind of hydraulic cylinder test fixture according to claim 1, it is characterised in that the pull bar is 4 and right two-by-two
Claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015417.9A CN106762985B (en) | 2017-01-10 | 2017-01-10 | A kind of hydraulic cylinder test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015417.9A CN106762985B (en) | 2017-01-10 | 2017-01-10 | A kind of hydraulic cylinder test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762985A true CN106762985A (en) | 2017-05-31 |
| CN106762985B CN106762985B (en) | 2019-01-25 |
Family
ID=58948678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710015417.9A Expired - Fee Related CN106762985B (en) | 2017-01-10 | 2017-01-10 | A kind of hydraulic cylinder test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762985B (en) |
Citations (14)
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|---|---|---|---|---|
| US2679160A (en) * | 1949-06-15 | 1954-05-25 | Charles W Welch | Actuating cylinder assembly test device |
| SU1373916A1 (en) * | 1986-09-10 | 1988-02-15 | Предприятие П/Я Р-6328 | Bed for testing hydraulic cylinders |
| CN102235943A (en) * | 2010-05-06 | 2011-11-09 | 中国商用飞机有限责任公司 | Loading test device |
| CN203035657U (en) * | 2013-01-14 | 2013-07-03 | 燕山大学 | Hydraulic cylinder hydraulic loading test tool |
| CN203500179U (en) * | 2013-10-11 | 2014-03-26 | 浙江正星健身器有限公司 | Cylinder installation structure in fatigue testing machine of treadmill oil cylinder |
| CN103790895A (en) * | 2014-02-28 | 2014-05-14 | 南京理工大学 | Hydraulic-cylinder lateral force testing device |
| KR101510639B1 (en) * | 2013-07-08 | 2015-04-10 | 한국기계연구원 | Performance testing device for cylinder |
| CN104912873A (en) * | 2015-04-20 | 2015-09-16 | 南京理工大学 | Working condition simulating hydraulic cylinder lateral force loading device |
| CN204878129U (en) * | 2015-07-24 | 2015-12-16 | 杭州绿聚科技有限公司 | Test bench |
| CN105275920A (en) * | 2015-11-04 | 2016-01-27 | 合肥海源机械有限公司 | Hydraulic cylinder test bench |
| CN205446272U (en) * | 2015-12-24 | 2016-08-10 | 张家口第一煤矿机械有限公司 | Hydro -cylinder test bench frame |
| CN105952715A (en) * | 2016-07-12 | 2016-09-21 | 天津优瑞纳斯液压机械有限公司 | Testing device for friction force of hydraulic cylinder |
| CN205654641U (en) * | 2016-05-05 | 2016-10-19 | 吉林大学 | Hydro -cylinder life -span test equipment |
| CN106290006A (en) * | 2016-08-08 | 2017-01-04 | 河海大学 | A kind of assay device measuring the change of shear strength parameter in soft clay consolidation process |
-
2017
- 2017-01-10 CN CN201710015417.9A patent/CN106762985B/en not_active Expired - Fee Related
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2679160A (en) * | 1949-06-15 | 1954-05-25 | Charles W Welch | Actuating cylinder assembly test device |
| SU1373916A1 (en) * | 1986-09-10 | 1988-02-15 | Предприятие П/Я Р-6328 | Bed for testing hydraulic cylinders |
| CN102235943A (en) * | 2010-05-06 | 2011-11-09 | 中国商用飞机有限责任公司 | Loading test device |
| CN203035657U (en) * | 2013-01-14 | 2013-07-03 | 燕山大学 | Hydraulic cylinder hydraulic loading test tool |
| KR101510639B1 (en) * | 2013-07-08 | 2015-04-10 | 한국기계연구원 | Performance testing device for cylinder |
| CN203500179U (en) * | 2013-10-11 | 2014-03-26 | 浙江正星健身器有限公司 | Cylinder installation structure in fatigue testing machine of treadmill oil cylinder |
| CN103790895A (en) * | 2014-02-28 | 2014-05-14 | 南京理工大学 | Hydraulic-cylinder lateral force testing device |
| CN104912873A (en) * | 2015-04-20 | 2015-09-16 | 南京理工大学 | Working condition simulating hydraulic cylinder lateral force loading device |
| CN204878129U (en) * | 2015-07-24 | 2015-12-16 | 杭州绿聚科技有限公司 | Test bench |
| CN105275920A (en) * | 2015-11-04 | 2016-01-27 | 合肥海源机械有限公司 | Hydraulic cylinder test bench |
| CN205446272U (en) * | 2015-12-24 | 2016-08-10 | 张家口第一煤矿机械有限公司 | Hydro -cylinder test bench frame |
| CN205654641U (en) * | 2016-05-05 | 2016-10-19 | 吉林大学 | Hydro -cylinder life -span test equipment |
| CN105952715A (en) * | 2016-07-12 | 2016-09-21 | 天津优瑞纳斯液压机械有限公司 | Testing device for friction force of hydraulic cylinder |
| CN106290006A (en) * | 2016-08-08 | 2017-01-04 | 河海大学 | A kind of assay device measuring the change of shear strength parameter in soft clay consolidation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762985B (en) | 2019-01-25 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Ke Inventor after: Gu Le Inventor after: Wang Jiawei Inventor before: Gu Le Inventor before: Ma Ke Inventor before: Wang Jiawei |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210224 Address after: No.57-58, Yougu Industrial Park, 58 Jinghong Road, Xibei Town, Xishan District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi baitaike Precision Machinery Co.,Ltd. Address before: 213022, No. 200 Jinling North Road, Jiangsu, Changzhou Patentee before: CHANGZHOU CAMPUS OF HOHAI University |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 Termination date: 20220110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |