CN206627086U - A kind of stroke caliberating device for linear hydraulic cylinder - Google Patents
A kind of stroke caliberating device for linear hydraulic cylinder Download PDFInfo
- Publication number
- CN206627086U CN206627086U CN201720360218.7U CN201720360218U CN206627086U CN 206627086 U CN206627086 U CN 206627086U CN 201720360218 U CN201720360218 U CN 201720360218U CN 206627086 U CN206627086 U CN 206627086U
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- Prior art keywords
- bracing wire
- bearing
- hydraulic cylinder
- linear hydraulic
- stroke
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Abstract
It the utility model is related to a kind of stroke caliberating device for linear hydraulic cylinder, it includes multi-diameter shaft, bearing, clip, bracing wire retainer ring and adjusting part, the multi-diameter shaft includes optical axis, installation step and thread spindle, the optical axis and screw thread adapter coupling coordinate completes to be rigidly connected with different piston rods, and the thread spindle can realize that multi-diameter shaft, bearing removing and installing and fastening；The bracing wire retainer ring is locked by bolt, and inner ring holds bearing, while fixed bracing wire tightly；The clip is bolted fixation, and inner ring holds bearing tightly；The adjusting part ensures bracing wire and piston rod diameter parallel according to the cylinder diameter adjusting position of the linear hydraulic cylinder.The utility model utilizes the rotation of bearing confined piston bar, the perpendicularity of bracing wire is adjusted using the deadweight of clip and adjusting part, ensure that bracing wire, with piston rod diameter parallel, is solved the problems, such as because piston rod transfers to produce bracing wire deflection and winding certainly after guide roller is oriented to.
Description
Technical field
The utility model belongs to stroke calibration facility field, and more particularly to a kind of stroke for linear hydraulic cylinder is demarcated
Device.
Background technology
Hydraulic cylinder is a kind of executive component common in Hydraulic Power Transmission System, is for realizing operating mechanism's linear reciprocation fortune
The dynamic or energy conversion device less than 360 ° of oscillating motions.Hydraulic cylinder substantially by cylinder, piston, piston rod, end cap, seal, enter
Go out the parts such as pipeline composition.Stroke is one of critical technical parameter of hydraulic pressure hydraulic cylinder, is measurement hydraulic pressure using displacement transducer
The common technology means of cylinder stroke, ensure the primary on condition that being demarcated to its precision of displacement sensor precision.
Bracing wire method is the transducer calibration method commonly used in engineering, is had the advantages that simple and direct practical.But actually using
Cheng Zhong, bracing wire method still have several drawbacks part：Bracing wire is generally fixed on the post of hydraulic cylinder piston rod end, works as piston rod
With that bracing wire can be driven to deflect when itself, which is moved back and forth, produces rotation, cause the axis of bracing wire and piston rod not parallel, when serious
Bracing wire can be wound on post, produce very big calibrated error.
Utility model content
The defects of in order to overcome prior art, the purpose of this utility model are to provide a kind of for linear hydraulic cylinder
Stroke caliberating device, solve the problems, such as bracing wire deflection and winding during demarcation, effectively improve displacement sensor precision.
What the utility model was realized in：
The utility model provides a kind of stroke caliberating device for linear hydraulic cylinder, including multi-diameter shaft, bearing, card
Hoop, bracing wire retainer ring and adjusting part；
The multi-diameter shaft includes first end, the second end and is provided between first end and the second end spacing
The installation step of the shaft shoulder, female optical axis, the internal thread and screw thread adapter coupling are set centered on the first end
The external screw thread connection of first end, the piston rod of the second end of the screw thread adapter coupling and the linear hydraulic cylinder connect
Connect；The second end is thread spindle；
The bearing includes clutch shaft bearing and second bearing, and the inner ring of the clutch shaft bearing holds the spacing shaft shoulder tightly, and
It is pressed on by the clamping sleeve being screwed onto on the thread spindle on installation step；The second bearing passes through nut and the ladder
The thread spindle of axle is attached and is fastened on the multi-diameter shaft；
The clip includes upper half arc sections and lower half arc sections, and the two of the upper half arc sections and the lower half arc sections
Side is provided with lug, and the lug is provided with bolt hole, and the inner ring of clip is located in the bolt hole by bolt to embrace
The tight clutch shaft bearing；
The bracing wire retainer ring is provided with the opening that can be locked, and the opening is locked by bolt, and the bracing wire is fixed
The inner ring of ring holds the second bearing tightly；And
The adjusting part includes sliding sleeve, slide bar and the guide roller for guiding bracing wire in the bracing wire retainer ring, described
Sliding sleeve is connected to the lower half arc sections of the clip, and the slide bar is connected with the guide roller, and the slide bar is by being arranged on
State the fixing device on sliding sleeve and be fixed on the sliding sleeve.
Preferably, the clamping sleeve includes first end and the second end, and the cross section of the first end is circular, institute
The cross section for stating the second end is regular hexagon；The clamping sleeve is provided with internal thread hole, and the clamping sleeve is by means of the interior spiral shell
Pit is screwed onto on the thread spindle, for clutch shaft bearing to be pressed on into installation step.
Preferably, the outer cover of the thread spindle is provided with stop collar, and the stop collar includes the first of connection second bearing
Second insertion end of insertion end and connection clamping sleeve.
Preferably, the stop collar is rubber sleeve.
Preferably, it is recessed in first coiling around line groove, guy winding to be provided with first for the outer ring of the bracing wire retainer ring
It is locked after groove by bolt.
Preferably, the fixing device be multiple adjustment holes of the uniform genesis analysis on the sliding sleeve and with the regulation
The bolt that hole coordinates.
Preferably, the guide roller is provided be used for that bracing wire to be guided second around line groove.
Preferably, displacement of the bracing wire after the guide roller with a length change that can measure the bracing wire
Sensor is connected.
Compared with prior art, the utility model has advantages below：
1. the utility model utilizes the rotation of bearing confined piston bar, while utilizes the deadweight of clip and adjusting part to drawing
The perpendicularity of line automatically adjusts, and ensures that bracing wire, with piston rod diameter parallel, solves original technology after guide roller guides
Method transfers to produce bracing wire deflection and winding problem certainly due to piston rod.
2. the utility model utilizes replaceable screw thread adapter coupling, realization connects from the rigidity of different tailpiece of the piston rod head threads
Connect；The hydraulic cylinder of different cylinder diameters is adapted to by adjusting the collapsing length of slide bar, regulative mode is simple, and device is versatile.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；And
Fig. 2 is fundamental diagram of the present utility model.
Embodiment
Describe exemplary embodiment, feature and the aspect of the present invention in detail below with reference to accompanying drawing.Identical is attached in accompanying drawing
Icon note represents the same or analogous element of function.Although the various aspects of embodiment are shown in the drawings, unless special
Do not point out, it is not necessary to accompanying drawing drawn to scale.
The utility model provides a kind of stroke caliberating device for linear hydraulic cylinder, as shown in figure 1, it includes ladder
Axle 1, bearing, clip 8, bracing wire retainer ring 7 and adjusting part 9, bearing include clutch shaft bearing 2 and second bearing 5.
As depicted in figs. 1 and 2, multi-diameter shaft 1 includes first end 11, the second end 14 and positioned at first end 11 and the
The installation step 12 of the spacing shaft shoulder 13 is provided between two ends 14, female optical axis, interior spiral shell are set centered on first end 11
Line is connected with the external screw thread of screw thread adapter coupling first end, the work of the second end of screw thread adapter coupling and linear hydraulic cylinder
Stopper rod connects, and overlaps the center line of the piston rod of optical axis, screw thread adapter coupling and linear hydraulic cylinder, optical axis, screw thread switching
Joint, which coordinates, to be completed to be rigidly connected with the piston rod of linear hydraulic cylinder；The second end 14 is thread spindle, and thread spindle is logical with nut 6
After crossing threaded connection, center line is overlapped, and second bearing 5 is fastened on multi-diameter shaft 1 by nut 6.
Bearing includes clutch shaft bearing 2 and second bearing 5, and the inner ring of clutch shaft bearing 2 holds the spacing shaft shoulder at the middle part of multi-diameter shaft 1 tightly
13, and the clamping sleeve 3 by being screwed onto on thread spindle is pressed on installation step 12；Second bearing 5 passes through nut 6 and thread spindle
It is attached and is fastened on multi-diameter shaft 1.
Bracing wire retainer ring 7 is provided with the opening 71 that can be locked and is locked opening 71 by bolt, and after locking, bracing wire is solid
The inner ring for determining ring 7 holds second bearing 5 tightly, and it is recessed in the first coiling around line groove, guy winding that the outer ring of bracing wire retainer ring 7 is provided with first
It is locked after groove by bolt.
Clip 8 includes upper half arc sections and lower half arc sections, and the both sides of upper half arc sections and lower half arc sections are provided with
Lug, lug are provided with bolt hole, and the inner ring of clip 8 is located in bolt hole by bolt to hold clutch shaft bearing 2 tightly；Clip 8
Lower half arc sections be connected with adjusting part 9, adjusting part 9 includes sliding sleeve 91, slide bar 92 and for guiding bracing wire retainer ring 7
The guide roller 93 of bracing wire, slide bar 92 are connected with guide roller 93, and it is multiple on sliding sleeve 91 that sliding sleeve 91 is provided with uniform genesis analysis
Adjustment hole and the bolt coordinated with adjustment hole, corresponding adjustment hole and bolt are selected according to the cylinder diameter of linear hydraulic cylinder, by cunning
Bar 92 is fixed in sliding sleeve 91, is adjusted the position of slide bar 92 and guide roller 93 by adjusting the collapsing length of slide bar 92, is protected
Piston after the guiding that bracing wire one end of card connection displacement transducer 103 passes through the groove of guide roller 93 second with linear hydraulic cylinder
Rod axis are parallel, and bracing wire is in tension.
Clamping sleeve 3 includes first end 31 and the second end 32, and the cross section of first end 31 is circular, the second end 32
Cross section be regular hexagon；Clamping sleeve 3 is provided with internal thread hole 33, and clamping sleeve 3 is screwed onto on thread spindle by screwed hole 33, uses
It is pressed in by clutch shaft bearing 2 on installation step 12.
Stop collar 4 is sleeved on thread spindle, and stop collar 4 includes the first insertion end of connection second bearing 5 and connection compresses
Second insertion end of set 3, avoids the friction of second bearing 5 and clamping sleeve 3；Stop collar 4 is rubber sleeve.
As shown in Fig. 2 an end set of bracing wire has the displacement transducer for the length change that can measure the bracing wire.
The bolt that preferably sliding sleeve 91 is provided with 3-8 adjustment hole of uniform genesis analysis and coordinated with adjustment hole, root
Quantity and the position of corresponding adjustment hole and screw thread are selected according to the cylinder diameter of hydraulic cylinder, slide bar 92 is fixed in sliding sleeve 91, passed through
Adjust the collapsing length of slide bar 92 and then adjust the position of slide bar 92 and guide roller 93, ensure the drawing of connection displacement transducer 103
Line one end makes drawing by the second piston rod diameter parallel after the guiding of line groove with linear hydraulic cylinder of guide roller 93
Line is in tension.As shown in figure 1, in the present embodiment, regulation hole number is 8, bolt is 3.
Preferably, in the present embodiment, the stroke range of displacement transducer is 0~560mm, precision 0.1mm, at remaining
In embodiment, according to being actually needed, suitable range and precision are selected.
Operation principle of the present utility model is illustrated with reference to embodiment：
1) hydraulic pressure hydraulic cylinder 101 is arranged on fixed rack, connects hydraulic test pipeline, installation displacement transducer arrives
Piston rod cavity, data wire is connected the output end of data collecting instrument, and Acquisition Instrument is connected to host computer by data wire；
2) from the screw thread adapter coupling with piston rod output end adaptation, by the optical axis of multi-diameter shaft 1 and screw thread adapter coupling
First end is connected, and the second end of screw thread adapter coupling is connected with the piston rod of linear hydraulic cylinder, makes optical axis, screw thread switching
The center line of the piston rod of joint and linear hydraulic cylinder is overlapped, and optical axis, screw thread adapter coupling, which coordinate, to be completed and linear hydraulic pressure
The piston rod of cylinder is rigidly connected；
3) inner ring of clutch shaft bearing 2 holds the spacing shaft shoulder 13 in the middle part of multi-diameter shaft 1 tightly, and clamping sleeve 3 is screwed onto to the screw thread of multi-diameter shaft 1
On axle, and clutch shaft bearing 2 is pressed on installation step 12, stop collar 4, second bearing 5 are socketed in the spiral shell of multi-diameter shaft 1 successively
On line axle, it is attached finally by the thread spindle of nut 6 and multi-diameter shaft 1 and then second bearing 5 is fastened on multi-diameter shaft 1；
4) inner ring of bracing wire retainer ring 7 holds second bearing 5 tightly, is locked lock opening 71 by bolt, by guy winding
First in the ring outer ring that is strained and fixed is locked on line groove, and by bolt；
5) other end of bracing wire is connected with the displacement transducer 103 for the length change that can measure bracing wire；
6) the upper half arc sections of clip 8 and lower half arc sections are worn into screwed hole by bolt to be attached, the inner ring of clip 8
Hold tightly on clutch shaft bearing 2, quantity and the position of adjustment hole and bolt are chosen according to the cylinder diameter of hydraulic cylinder, regulation slide bar 92 is stretched
Contracting length, slide bar 92 is fastened in sliding sleeve 91, and bracing wire one end of connection displacement transducer 103 is passed through guide roller 93 second
With piston rod diameter parallel and keeping tension after the guiding of line groove；
7) data wire of stay wire sensor 103 is coupled with Acquisition Instrument input；
8) start the control valve in hydraulic system, piston rod is withdrawn on earth, by the displacement transducer of piston rod cavity and position
The regular registration of displacement sensor 103 is zero；Piston rod is extend out to maximum travel position, adjusts the registration of displacement transducer 103
For 560mm, 560mm is assigned to calibration sensor；
9) repeat said process and carry out calibration result inspection, until error meets required precision, complete demarcation.
To sum up, compared with prior art, the utility model has advantages below：
1. the utility model utilizes the rotation of bearing confined piston bar, while utilizes the deadweight of clip and adjusting part to drawing
The perpendicularity of line automatically adjusts, and ensures that bracing wire, with piston rod diameter parallel, solves original technology after guide roller guides
Method transfers to produce bracing wire deflection and winding problem certainly due to piston rod.
2. the utility model utilizes replaceable screw thread adapter coupling, realization connects from the rigidity of different tailpiece of the piston rod head threads
Connect；The hydraulic cylinder of different cylinder diameters is adapted to by adjusting the collapsing length of slide bar, regulative mode is simple, and device is versatile.
Finally it should be noted that：Above-described each embodiment is merely to illustrate the technical solution of the utility model, rather than
It is limited；Although the utility model is described in detail with reference to the foregoing embodiments, one of ordinary skill in the art
It should be understood that：It can still modify to the technical scheme described in previous embodiment, or to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or substitutions, the essence of appropriate technical solution is departed from the utility model
The scope of each embodiment technical scheme.
Claims (8)
1. a kind of stroke caliberating device for linear hydraulic cylinder, it include multi-diameter shaft, bearing, clip, bracing wire retainer ring with
And adjusting part, it is characterised in that：
The multi-diameter shaft includes first end, the second end and the spacing shaft shoulder is provided between first end and the second end
Installation step, female optical axis, the internal thread and the first of screw thread adapter coupling are set centered on the first end
The external screw thread connection of end, the second end of the screw thread adapter coupling are connected with the piston rod of the linear hydraulic cylinder；Institute
It is thread spindle to state the second end；
The bearing includes clutch shaft bearing and second bearing, and the inner ring of the clutch shaft bearing holds the spacing shaft shoulder tightly, and passes through
The clamping sleeve being screwed onto on the thread spindle is pressed on installation step；The second bearing passes through nut and the multi-diameter shaft
Thread spindle is attached and is fastened on the multi-diameter shaft；
The clip includes upper half arc sections and lower half arc sections, and the both sides of the upper half arc sections and the lower half arc sections are equal
Lug is provided with, the lug is provided with bolt hole, and the inner ring of the clip is located in the bolt hole by bolt to embrace
The tight clutch shaft bearing；
The bracing wire retainer ring is provided with the opening that can be locked, and the opening is locked by bolt, the bracing wire retainer ring
Inner ring holds the second bearing tightly；And
The adjusting part includes sliding sleeve, slide bar and the guide roller for guiding bracing wire in the bracing wire retainer ring, the sliding sleeve
The lower half arc sections of the clip are connected to, the slide bar is connected with the guide roller, and the slide bar is by being arranged on the cunning
The fixing device that puts and be fixed on the sliding sleeve.
2. the stroke caliberating device according to claim 1 for linear hydraulic cylinder, it is characterised in that：The clamping sleeve
Including first end and the second end, the cross section of the first end is circle, and the cross section of the second end is positive six
Side shape；The clamping sleeve is provided with internal thread hole, and the clamping sleeve is screwed onto on the thread spindle by means of the internal thread hole, uses
It is pressed in by clutch shaft bearing on installation step.
3. the stroke caliberating device according to claim 1 for linear hydraulic cylinder, it is characterised in that：The thread spindle
Outer cover be provided with stop collar, the stop collar includes the first insertion end of connection second bearing and the second of connection clamping sleeve inserts
Enter end.
4. the stroke caliberating device according to claim 3 for linear hydraulic cylinder, it is characterised in that：The stop collar
For rubber sleeve.
5. the stroke caliberating device according to claim 1 for linear hydraulic cylinder, it is characterised in that：The bracing wire is consolidated
The outer ring for determining ring is locked described first around line groove, guy winding provided with first after line groove by bolt.
6. the stroke caliberating device according to claim 1 for linear hydraulic cylinder, it is characterised in that：The fixed dress
Put including multiple adjustment holes of the uniform genesis analysis on the sliding sleeve and the bolt with adjustment hole cooperation.
7. the stroke caliberating device according to claim 5 for linear hydraulic cylinder, it is characterised in that：The guide roller
Provided with second for being guided to bracing wire around line groove.
8. the stroke caliberating device according to claim 7 for linear hydraulic cylinder, it is characterised in that：The bracing wire warp
It is connected after crossing the guide roller with the displacement transducer of a length change that can measure the bracing wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720360218.7U CN206627086U (en) | 2017-04-07 | 2017-04-07 | A kind of stroke caliberating device for linear hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720360218.7U CN206627086U (en) | 2017-04-07 | 2017-04-07 | A kind of stroke caliberating device for linear hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206627086U true CN206627086U (en) | 2017-11-10 |
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ID=60207796
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720360218.7U Active CN206627086U (en) | 2017-04-07 | 2017-04-07 | A kind of stroke caliberating device for linear hydraulic cylinder |
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| Country | Link |
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| CN (1) | CN206627086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945164A (en) * | 2021-03-22 | 2021-06-11 | 中国长江电力股份有限公司 | Rapid calibration device for ceramic piston rod openness instrument and use method |
-
2017
- 2017-04-07 CN CN201720360218.7U patent/CN206627086U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945164A (en) * | 2021-03-22 | 2021-06-11 | 中国长江电力股份有限公司 | Rapid calibration device for ceramic piston rod openness instrument and use method |
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