CN109269798B - A kind of damper recuperation valve spring pre-tightening force tester - Google Patents
A kind of damper recuperation valve spring pre-tightening force tester Download PDFInfo
- Publication number
- CN109269798B CN109269798B CN201811405177.4A CN201811405177A CN109269798B CN 109269798 B CN109269798 B CN 109269798B CN 201811405177 A CN201811405177 A CN 201811405177A CN 109269798 B CN109269798 B CN 109269798B
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- CN
- China
- Prior art keywords
- piston
- adjusting sleeve
- guide rail
- sliding platform
- recuperation valve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention discloses a kind of damper recuperation valve spring pre-tightening force testers, including hydraulic platform, motor and detection piston cylinder.Screw rod is connect across adjusting sleeve with piston bush in piston in detection piston cylinder, and screw rod and adjusting sleeve are threadedly coupled, and adjusting sleeve bottom bung hole in the form of annular discs and with piston bush matches.Piston bush bottom and adjusting sleeve bottom are provided with several oil-through holes, and piston bush bottom and adjusting sleeve bottom are each provided with an adjustment gasket, adjust and are provided with spring between gasket.Hydraulic platform central post is equipped with guide rail, and guide rail is equipped with the first sliding platform, the second sliding platform, and the mandril of hydraulic cylinder is connect with the second sliding platform, and piston cylinder interconnecting piece is connected with cylinder barrel and is fixedly connected between two platforms and with column.The shaft of motor passes through the first sliding platform and connect with adjusting sleeve.The present invention is adjusted gasket and needs the thickness approach that adjusts simple and convenient, laborsaving time saving, is remarkably improved assembly, the debugging efficiency of damper recuperation valve.
Description
Technical field
The present invention relates to the technical fields of experiment test device, more particularly to a kind of damper recuperation valve initial tension of spring
Testing machine.
Background technique
The initial tension of spring of damper recuperation valve is one important factor in order of body movement performance, and especially arms battlebus subtracts
The performances such as stationarity, the barrier-jump ability that the initial tension of spring of shake device recuperation valve moves battlebus influence very big.Previous arms battlebus
The detecting step of damper recuperation valve initial tension of spring is: 1) damper member assembles, and 2) make damper indicator card, 3) work as damping
The disintegration damper member that (is unsatisfactory for design requirement in most cases) when device indicator card is unsatisfactory for design requirement, 4) replacement recuperation valve
Spring end adjust spacer thickness, 5) re-start damper member assembly, 6) make damper indicator card, the above process may need
It is repeated several times and can be only achieved design requirement, the debugging cycle for obtaining a suitable adjustment spacer thickness is long, time and effort consuming, work
Low efficiency.
Summary of the invention
The object of the present invention is to provide a kind of damper recuperation valve spring pre-tightening force testers, to solve the above-mentioned prior art
There are the problem of, keep the adjustment of damper recuperation valve initial tension of spring simple and convenient, be remarkably improved assembly, debugging efficiency.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of damper recuperation valve spring pre-tightening force testers, including hydraulic platform, motor and detection
Piston cylinder,
The detection piston cylinder includes cylinder barrel, piston and piston rod, and the piston is set in the cylinder barrel, the piston
Bottom is connect with the piston rod, and the piston rod passes through the bottom of the cylinder barrel and is tightly connected with the cylinder barrel；The work
Plug includes piston bush, screw rod and adjusting sleeve, and the piston bush is in tubbiness, and the screw rod passes through the adjusting sleeve and the piston bush
The connection of bucket bottom, the screw rod and the adjusting sleeve be threadedly coupled, the adjusting sleeve bottom it is in the form of annular discs and with the piston bush
Bung hole match；The piston bush bottom and the adjusting sleeve bottom are provided with several oil-through holes, the piston bush bottom
Portion and the adjusting sleeve bottom are each provided with an adjustment gasket, are provided with spring between the adjustment gasket, are located at the spring
The adjustment gasket of lower end is covered with several oil-through holes；
The hydraulic platform includes hydraulic cylinder, column, piston cylinder interconnecting piece, guide rail, the first sliding platform and the second sliding
Platform is provided with guide rail on the column, and the top of the guide rail is provided with first sliding platform, the lower part of the guide rail
It is provided with the second sliding platform, the mandril of the hydraulic cylinder is connect with second sliding platform, the piston cylinder connecting portion
It is fixedly connected between first sliding platform and second sliding platform and with the column；The piston cylinder interconnecting piece
It is connect with the cylinder barrel；
The motor be located on first sliding platform and the shaft of the motor pass through first sliding platform with
The adjusting sleeve connection.
Preferably, first sliding platform is connect with the bracing wire of a stay wire displacement sensor, the bracing wire displacement sensing
Device is set to the rail crown, and the bracing wire keeps vertical.
Preferably, the guide rail is rolling guide and is divided into section guide rail and lower section guide rail, the upper section guide rail and described
Lower section guide rail is collinearly set on the column, and the piston cylinder interconnecting piece is set to the upper section guide rail and the lower section guide rail
On the column of interval.
It preferably, further include a pedestal, the column and the hydraulic cylinder are all arranged on the base.
Preferably, the motor is speed reducer for servo motor.
Preferably, the shaft of the motor and a sleeve connection, the sleeve are socketed and are able to drive with the adjusting sleeve
The adjusting sleeve rotation.
Preferably, the cross section outside the adjusting sleeve is at regular quadrangle, regular pentagon or regular hexagon, the sleeve
Internal cross section matches with the cross section outside the adjusting sleeve.
It preferably, is clearance fit between the adjusting sleeve, the piston rod and the cylinder barrel.
Preferably, sealing element is provided between the piston rod and the cylinder barrel.
Preferably, the oil-through hole is circumferentially uniformly distributed by rotating shaft of the axis of screw rod, the size and setting of the oil-through hole
Mode is identical as on damper recuperation valve.
The present invention achieves following technical effect compared with the existing technology:
The distance moved up and down when damper recuperation valve spring pre-tightening force tester of the invention is by measuring motor spring,
It is adjusted the thickness that gasket needs to adjust, and then realizes the adjustment of damper recuperation valve initial tension of spring, method is simple and convenient,
It is laborsaving time saving, it is remarkably improved assembly, the debugging efficiency of damper recuperation valve.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of damper recuperation valve spring pre-tightening force tester of the present invention；
Fig. 2 is the cross-sectional view of A-A in Fig. 1 of the present invention；
Fig. 3 is the partial enlarged view of structure at B in Fig. 1 of the present invention；
Wherein: the upper section guide rail of 1-, the first sliding platform of 2-, 3- motor, 4- column, 5- piston bush, 6- cylinder barrel, 7- piston cylinder
Interconnecting piece, 8- stay wire displacement sensor, section guide rail under 9-, 10- pedestal, 11- hydraulic cylinder, 12- mandril, the second sliding platform of 13-,
14- sealing element, 15- piston rod, 16- adjustment gasket, 17- spring, 18- sleeve, 19- screw rod, 20- adjusting sleeve, 21- oil-through hole,
22- compensates valve port.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art under the premise of not making the creative labor it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of damper recuperation valve spring pre-tightening force testers, to solve prior art presence
The problem of, keep the adjustment of damper recuperation valve initial tension of spring simple and convenient, is remarkably improved assembly, debugging efficiency.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
It is as shown in Figure 1 to Figure 3: to present embodiments provide a kind of damper recuperation valve spring pre-tightening force tester, including liquid
Flattening bench, motor 3 and detection piston cylinder.
Specifically, detection piston cylinder includes cylinder barrel 6, piston and piston rod 15, piston is set in cylinder barrel 6, piston base
It is connect with piston rod 15, piston rod 15 passes through the bottom of cylinder barrel 6 and is tightly connected with cylinder barrel 6；It is set between piston rod 15 and cylinder barrel 6
It is equipped with sealing element 14.
Piston includes piston bush 5, screw rod 19 and adjusting sleeve 20, and piston bush 5 is in tubbiness, and screw rod 19 passes through adjusting sleeve 20 and lives
The bucket bottom of plug sleeve 5 connects, and screw rod 19 and adjusting sleeve 20 are threadedly coupled, and 20 bottom of adjusting sleeve is in the form of annular discs and bucket with piston bush 5
Mouth matches.The shaft of motor 3 is connect with a sleeve 18, and sleeve 18 is socketed with adjusting sleeve 20 and is able to drive 20 turns of adjusting sleeve
It is dynamic, for adjusting the pretightning force of spring 17.Cross section outside adjusting sleeve 20 is at regular quadrangle, regular pentagon or positive six side
Shape, the cross section inside sleeve 18 match with the cross section outside adjusting sleeve 20.Adjusting sleeve 20, piston rod 15 and cylinder barrel 6 it
Between be clearance fit, it is easy to disassemble.Wherein, piston bush 5, screw rod 19, adjusting sleeve 20, spring and the adjustment combination of gasket 16 are one
It rises, constitutes experiment damper recuperation valve.
5 bottom of piston bush and 20 bottom of adjusting sleeve are provided with several oil-through holes 21,5 bottom of piston bush and adjusting sleeve 20
Bottom is each provided with an adjustment gasket 16, and 5 bottom of piston bush and 20 bottom of adjusting sleeve are each provided with a corresponding annular groove, ring
Shape slot is provided with spring 17 between adjustment gasket 16, the adjustment gasket 16 positioned at 17 lower end of spring for accommodating adjustment gasket 16
It is covered with several oil-through holes 21.Oil-through hole 21 is circumferentially uniformly distributed by rotating shaft of the axis of screw rod 19, the size of oil-through hole 21 and
Set-up mode is identical as on damper recuperation valve, can sufficiently simulate the initial tension of spring of damper recuperation valve.Wherein, oil-through hole
21 can guarantee that testing the intracorporal oil liquid of the upper and lower chamber of damper recuperation valve communicates, several oil-through holes that adjustment gasket 16 covers
21 be compensation valve port 22, when the oil liquid pressure intracorporal greater than epicoele of the oil liquid pressure in lower chamber, the intracorporal oil liquid meeting of cavity of resorption
The compensation valve port 22 covered by opening adjustment gasket 16, to alleviate oil liquid pressure difference.
Hydraulic platform includes hydraulic cylinder 11, column 4, piston cylinder interconnecting piece 7, guide rail, the first sliding platform 2 and the second sliding
Platform 13 is provided with guide rail on column 4, and the top of guide rail is provided with the first sliding platform 2, and it is sliding that the lower part of guide rail is provided with second
Moving platform 13, the mandril 12 of hydraulic cylinder 11 are connect with the second sliding platform 13, and piston cylinder interconnecting piece 7 is located at the first sliding platform 2
And second be fixedly connected between sliding platform 13 and with column 4；Piston cylinder interconnecting piece 7 is connect with cylinder barrel 6, makes to detect piston cylinder
Cylinder barrel 6 keeps opposing stationary.It further include a pedestal 10 in the present embodiment, column 4 and hydraulic cylinder 11 are all set on pedestal 10.
Motor 3 is located on the first sliding platform 2 and the shaft of motor 3 passes through the first sliding platform 2 and connect with adjusting sleeve 20.
First sliding platform 2 is connect with the bracing wire of a stay wire displacement sensor 8, and stay wire displacement sensor 8 is set to rail crown, bracing wire
Keep vertical.Stay wire displacement sensor 8 in the present embodiment also could alternatively be laser displacement sensor or other and can measure
The sensor of 3 vertical displacement of first sliding platform 2 or motor out.
Guide rail is rolling guide and is divided into section guide rail 1 and lower section guide rail 9, and upper section guide rail 1 and lower section guide rail 9 are collinearly arranged
In on column 4, piston cylinder interconnecting piece 7 is set on the column 4 of section guide rail 1 and lower 9 interval of section guide rail.
The specific work process of the present embodiment damper recuperation valve spring pre-tightening force tester is as follows:
Firstly, spring 17 and adjustment gasket 16 are assembled between piston bush 5 and adjusting sleeve 20, make the mandril of hydraulic cylinder 11
12 are in ejection state, and stay wire displacement sensor 8 is connect with data control system, while being provided with tensile test on piston rod 15
Component, data control system are connect with the detection of tensile test component, experiment damper recuperation valve indicator card with drawing system,
The pulling force of middle piston rod 15 and the curved line relation of displacement are the indicator card for testing damper recuperation valve.
Oil liquid is filled into the cavity of experiment damper recuperation valve, making the liquid level of oil liquid is more than that adjusting sleeve 20 is discoid
The upper surface at place and the cavity for not spilling over cylinder barrel 6.The mandril 12 of driving hydraulic cylinder 11 declines, and hydraulic cylinder 11 pulls the second sliding flat
13 piston rod 15 of platform, piston bush 5, screw rod 19, adjusting sleeve 20, adjustment gasket 16 and spring 17 are according to the rate request for testing outline
It moves downward；The first sliding platform 2, motor 3 (the direct-connected retarder of servo motor) and sleeve 18 are downward under the effect of gravity simultaneously
Movement.At this point, the oil liquid of experiment damper recuperation valve lower chamber enters its upper cavity at least partially through oil-through hole 21, but due to mistake
The diameter of oilhole 21 is small, causes to generate pressure difference between the lower chamber and upper cavity of testing damper recuperation valve, in the motion process
Measure an indicator card.When the indicator card measured is unsatisfactory for the design requirement of damper recuperation valve, positive (or reversed) is driven
The dynamic direct-connected retarder of servo motor drives interior hexagonal hole sleeve 18 to rotate forward (or reversion), so that adjusting sleeve 20 is rotated forward (or reversion), together
When adjusting sleeve 20 drive adjustment gasket 16 and spring 17 (or upwards) movement certain distance downwards, the later direct-connected deceleration of servo motor
Device is braked, again the indicator card of test experience damper recuperation valve.It repeats the above process, until indicator card meets damper compensation
Until the design requirement of valve.At this point, the shift value that stay wire displacement sensor 8 measures is the thickness for adjusting gasket 16 and needing to adjust
Degree.
Since the installation dimension of spring 17 and adjustment 16 component of gasket in damper recuperation valve is definite value, bracing wire is worked as in setting
When displacement sensor 8 reaches spring 17 and adjusts the installation dimension of 16 component of gasket, the shift value of stay wire displacement sensor 8 is 0；
When stay wire displacement sensor 8 shift value be timing, then adjust gasket 16 and need to increase thickness；When stay wire displacement sensor 8
When shift value is negative, then adjusts gasket 16 and need to reduce thickness.
By the thickness of increase (or reduction) adjustment gasket 16, the spring for meeting design requirement and gasket group can be obtained
Part, to ensure that the design of damper recuperation valve meets the requirements.
The damper recuperation valve spring pre-tightening force tester of the present embodiment moves up and down when debugging spring by measurement motor
Distance, be adjusted gasket 16 and need the thickness that adjusts, and then do not need being dismounted for multiple times spring and gasket, disposable realize subtracts
The adjustment of device recuperation valve initial tension of spring is shaken, method is simple and convenient, and it is laborsaving time saving, it is remarkably improved the dress of damper recuperation valve
Match, debugging efficiency.
Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (9)
1. a kind of damper recuperation valve spring pre-tightening force tester, it is characterised in that: including hydraulic platform, motor and detection piston
Cylinder,
The detection piston cylinder includes cylinder barrel, piston and piston rod, and the piston is set in the cylinder barrel, the piston base
It is connect with the piston rod, the piston rod passes through the bottom of the cylinder barrel and is tightly connected with the cylinder barrel；The piston packet
Piston bush, screw rod and adjusting sleeve are included, the piston bush is in tubbiness, and the screw rod passes through the bucket of the adjusting sleeve and the piston bush
Bottom connection, the screw rod and the adjusting sleeve are threadedly coupled, and the adjusting sleeve bottom is in the form of annular discs and bucket with the piston bush
Mouth matches；The piston bush bottom and the adjusting sleeve bottom are provided with several oil-through holes, the piston bush bottom and
The adjusting sleeve bottom is each provided with an adjustment gasket, is provided with spring between the adjustment gasket, is located at the lower spring end
Adjustment gasket be covered with several oil-through holes；
The hydraulic platform includes hydraulic cylinder, column, piston cylinder interconnecting piece, guide rail, the first sliding platform and the second sliding platform,
Guide rail is provided on the column, the top of the guide rail is provided with first sliding platform, the lower part setting of the guide rail
There is the second sliding platform, the mandril of the hydraulic cylinder is connect with second sliding platform, and the piston cylinder connecting portion is in institute
It states between the first sliding platform and second sliding platform and is fixedly connected with the column；The piston cylinder interconnecting piece and institute
State cylinder barrel connection；
The motor be located on first sliding platform and the shaft of the motor pass through first sliding platform with it is described
Adjusting sleeve connection；
First sliding platform is connect with the bracing wire of a stay wire displacement sensor, and the stay wire displacement sensor is set to described
Rail crown, the bracing wire keep vertical.
2. damper recuperation valve spring pre-tightening force tester according to claim 1, it is characterised in that: the guide rail is rolling
It moves guide rail and is divided into section guide rail and lower section guide rail, the upper section guide rail and the lower section guide rail are collinearly set to the column
On, the piston cylinder interconnecting piece is set on the column of the upper section guide rail and the lower section guide rail interval.
3. damper recuperation valve spring pre-tightening force tester according to claim 1, it is characterised in that: further include a bottom
Seat, the column and the hydraulic cylinder are all arranged on the base.
4. damper recuperation valve spring pre-tightening force tester according to claim 1, it is characterised in that: the motor is to watch
Take motor reducer.
5. damper recuperation valve spring pre-tightening force tester according to claim 1, it is characterised in that: the motor turns
Axis and a sleeve connection, the sleeve and the adjusting sleeve are socketed and are able to drive the adjusting sleeve and rotate.
6. damper recuperation valve spring pre-tightening force tester according to claim 5, it is characterised in that: outside the adjusting sleeve
The cross section in portion is at regular quadrangle, regular pentagon or regular hexagon, outside the cross section of the sleeve inner and the adjusting sleeve
The cross section in portion matches.
7. damper recuperation valve spring pre-tightening force tester according to claim 1, it is characterised in that: the adjusting sleeve,
It is clearance fit between the piston rod and the cylinder barrel.
8. damper recuperation valve spring pre-tightening force tester according to claim 1, it is characterised in that: the piston rod with
Sealing element is provided between the cylinder barrel.
9. damper recuperation valve spring pre-tightening force tester according to claim 1, it is characterised in that: the oil-through hole with
The axis of screw rod is that rotating shaft is circumferentially uniformly distributed, and the size and set-up mode of the oil-through hole are identical as on damper recuperation valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405177.4A CN109269798B (en) | 2018-11-23 | 2018-11-23 | A kind of damper recuperation valve spring pre-tightening force tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811405177.4A CN109269798B (en) | 2018-11-23 | 2018-11-23 | A kind of damper recuperation valve spring pre-tightening force tester |
Publications (2)
| Publication Number | Publication Date |
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| CN109269798A CN109269798A (en) | 2019-01-25 |
| CN109269798B true CN109269798B (en) | 2019-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811405177.4A Active CN109269798B (en) | 2018-11-23 | 2018-11-23 | A kind of damper recuperation valve spring pre-tightening force tester |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206378234U (en) * | 2016-12-30 | 2017-08-04 | 深圳市中车业成实业有限公司 | A kind of high speed motor car damper piston pretension draught control system |
| CN206899086U (en) * | 2017-05-24 | 2018-01-19 | 宝沃汽车（中国）有限公司 | The dismounting frock of shock absorber |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0297739A (en) * | 1988-10-04 | 1990-04-10 | Nippon Denso Co Ltd | Damping force detecting device for shock absorber |
| CN201083615Y (en) * | 2006-09-15 | 2008-07-09 | 江苏科技大学 | Shock absorber test stand for motorcycle |
| CN203908773U (en) * | 2014-06-24 | 2014-10-29 | 上海帆特机电设备制造有限公司 | Clamping mechanism and indicator machine to which clamping mechanism is applied |
| CN105571757B (en) * | 2015-12-14 | 2018-02-09 | 芜湖天佑汽车技术有限公司 | Shock absorber pretension force checking device and detection method |
| CN107843444B (en) * | 2017-10-26 | 2019-07-19 | 海门市铁路机车车辆配件厂有限公司 | Test the testing stand and its test method of being hit by a bullet property of oil-pressure damper part performance |
| CN207621247U (en) * | 2017-12-05 | 2018-07-17 | 华东交通大学 | A kind of Novel magneto-rheological damper of detectable piston displacement |
-
2018
- 2018-11-23 CN CN201811405177.4A patent/CN109269798B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206378234U (en) * | 2016-12-30 | 2017-08-04 | 深圳市中车业成实业有限公司 | A kind of high speed motor car damper piston pretension draught control system |
| CN206899086U (en) * | 2017-05-24 | 2018-01-19 | 宝沃汽车（中国）有限公司 | The dismounting frock of shock absorber |
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| Publication number | Publication date |
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| CN109269798A (en) | 2019-01-25 |
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