CN203394928U - Hydraulic cylinder with stroke measurement and control function and engineering machinery comprising same - Google Patents
Hydraulic cylinder with stroke measurement and control function and engineering machinery comprising same Download PDFInfo
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- CN203394928U CN203394928U CN201320484447.1U CN201320484447U CN203394928U CN 203394928 U CN203394928 U CN 203394928U CN 201320484447 U CN201320484447 U CN 201320484447U CN 203394928 U CN203394928 U CN 203394928U
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- hydraulic cylinder
- oil hydraulic
- observing
- piston rod
- tape travel
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- 238000005259 measurement Methods 0.000 title abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 34
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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Abstract
The utility model provides a take pneumatic cylinder of stroke measurement and control and contain engineering machine tool of this pneumatic cylinder. The hydraulic cylinder with the stroke measurement and control function comprises a cylinder body, a piston rod and a stroke measurement and control device arranged outside the cylinder body, wherein the stroke measurement and control device comprises a measuring part and a monitoring part for monitoring the measuring part; one of the measuring part and the monitoring part is fixed on the cylinder body, and the other is fixed at the outer end part of the piston rod. According to the utility model discloses, the stroke measurement and control device sets up in the cylinder body outside, no matter under any occasion, will take the pneumatic cylinder installation back that the stroke was observed and controlled, and the measuring part takes place relative displacement along with the flexible and with control portion of piston rod, and the displacement volume through control measuring part can measure the stroke that obtains the pneumatic cylinder, and need not to change stroke measurement and control device's mounted position, and stroke measurement and control device can simply reform transform and obtain on original pneumatic cylinder basis, convenient and practical, low in production cost.
Description
Technical field
The utility model relates to the oil hydraulic cylinder field in engineering machinery, more specifically, and the engineering machinery that relates to a kind of oil hydraulic cylinder of tape travel observing and controlling and comprise this oil hydraulic cylinder.
Background technique
Oil hydraulic cylinder as a kind of generally extending means of application, can be used for changing the working state of other mechanisms in engineering machinery, for the function of engineering machinery realize play a part very important.For the position of stretching out and retracting to oil hydraulic cylinder is accurately limited, to obtain better control accuracy, on oil hydraulic cylinder, generally stroke detection mechanism can be set, by the trip feeler mechanism, can obtain in time the stroke of oil hydraulic cylinder, and control accordingly.
In engineering machinery, existing oil hydraulic cylinder Shi Qi back is implanted into a set of electromagnetism displacement transducer device, and sensing device comprises sensor bar and is contained in the compositions such as permanent magnet ring on piston.Motion by piston drives magnet ring to move, and sensor bar senses that permanent magnet ring is in piston Shang position, its displacement of sensing, thereby the stroke of observing and controlling oil cylinder.
But, the oil hydraulic cylinder of existing tape travel observing and controlling is special-purpose autocratic, for existing mechanical structure, apply the oil hydraulic cylinder of existing tape travel observing and controlling, just must change the position of the installation hinge of original sensing device, and need readjust the structure of sensor device, thereby cost and the cost of the oil hydraulic cylinder of whole tape travel observing and controlling have been increased.
Model utility content
The engineering machinery that the utility model aims to provide a kind of oil hydraulic cylinder of tape travel observing and controlling and comprises this oil hydraulic cylinder is transformed inconvenience, the problem that cost is higher to solve the oil hydraulic cylinder of tape travel observing and controlling of the prior art on original oil hydraulic cylinder basis.
For solving the problems of the technologies described above, according to Yi Ge of the present utility model aspect, a kind of oil hydraulic cylinder of tape travel observing and controlling is provided, comprise cylinder body and piston rod, also comprise the stroke measuring and control device that is arranged on cylinder body outside, stroke measuring and control device comprises the monitoring department of measuring piece and control measurement part, and one of them is fixed on measuring piece and monitoring department on cylinder body, and another is fixed on the outer end of piston rod.
Further, monitoring department comprises the sensor of relative displacement and the mounting plate of sensor installation of control measurement part and monitoring department.
Further, sensor is laser displacement sensor, and measuring piece is laser induced.
Further, sensor is stay wire sensor, and measuring piece is the bracing wire being connected with stay wire sensor, and one end of bracing wire is connected on piston rod.
Further, bracing wire is parallel with the axis of piston rod.
Further, the oil hydraulic cylinder of tape travel observing and controlling also comprises the erecting device of the outer end that is fixedly installed on piston rod, and the first end of bracing wire is arranged on stay wire sensor, and the second end of bracing wire is connected with erecting device.
Further, erecting device comprises: supporting base, be fixedly installed on piston rod, and perpendicular to the axis of piston rod; Assembling set, is removably disposed in one end away from piston rod of supporting base, and bracing wire is connected on assembling set.
Further, assembling set is double-screw bolt, and supporting base axially offers the tapped hole suitable with double-screw bolt along piston rod, being locked on supporting base by locking nut of the two ends of double-screw bolt.
Further, the end of the close bracing wire of double-screw bolt is provided with the groove extending vertically, and the second end of bracing wire is removably disposed in groove.
Further, be provided with link in groove, the second end of bracing wire is connected on link.
According to model utility on the other hand, provide a kind of engineering machinery, comprised the oil hydraulic cylinder of tape travel observing and controlling, the oil hydraulic cylinder of tape travel observing and controlling is the oil hydraulic cylinder of above-mentioned tape travel observing and controlling.
Application the technical solution of the utility model, the stroke measuring and control device that the oil hydraulic cylinder of tape travel observing and controlling comprises cylinder body, piston rod and is arranged on cylinder body outside, stroke measuring and control device comprises the monitoring department of measuring piece and control measurement part; Wherein, one of them is fixed on measuring piece and monitoring department on cylinder body, and another is fixed on the outer end of piston rod.According to the oil hydraulic cylinder of tape travel observing and controlling of the present utility model, stroke measuring and control device is arranged on cylinder body outside, no matter under what occasion, after the oil hydraulic cylinder of tape travel observing and controlling is installed, measuring piece with the flexible of piston rod with monitoring department generation relative displacement, by the displacement amount of monitoring department control measurement part, can measure the stroke of oil hydraulic cylinder, and without the mounting point that changes stroke measuring and control device, stroke measuring and control device can simply be transformed and obtain on original oil hydraulic cylinder basis, convenient and practical, low production cost.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the oil hydraulic cylinder plan view of the tape travel observing and controlling in the utility model;
Fig. 2 has schematically shown the oil hydraulic cylinder plan view of tape travel observing and controlling of the present utility model; And
Fig. 3 has schematically shown the partial enlarged drawing M in Fig. 2.
Description of reference numerals:
10, cylinder body; 20, piston rod; 30, stroke measuring and control device; 31, measuring piece; 32, monitoring department; 321, sensor; 322, mounting plate; 40, erecting device; 41, supporting base; 42, assembling set; 43, link; 44, nut; 421, groove.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to shown in Fig. 1 to Fig. 3, according to embodiment of the present utility model, the oil hydraulic cylinder of tape travel observing and controlling comprises cylinder body 10, piston rod 20 and the stroke measuring and control device 30 that is arranged on cylinder body 10 outsides, and stroke measuring and control device 30 comprises the monitoring department 32 of measuring piece 31 and control measurement part 31.Wherein, one of them is fixed on measuring piece 31 and monitoring department 32 on cylinder body 10, and another is fixed on piston rod 20 outer end.According to the oil hydraulic cylinder of tape travel observing and controlling of the present utility model, stroke measuring and control device 30 is arranged on cylinder body 10 outsides, no matter under what occasion, after the oil hydraulic cylinder of tape travel observing and controlling is installed, just can there is relative displacement with monitoring department 32 with the flexible of piston rod 20 in measuring piece 31, by monitoring department 32 control measurement parts 31 and the relative shift of monitoring department 32, can measure the stroke of oil hydraulic cylinder, and without the mounting point that changes stroke measuring and control device, stroke measuring and control device can simply be transformed and obtain on original oil hydraulic cylinder basis, convenient and practical, low production cost.
According to the present embodiment, monitoring department 32 comprises the sensor 321 of relative displacement and the mounting plate 322 of sensor installation 321 of control measurement part 31 and monitoring department 32.Sensor 321 is removably disposed on mounting plate 322.When measuring piece 31 relative displacement occurs with the flexible of piston rod 20 with monitoring department 32, sensor 321 can be monitored out the change in displacement of corresponding piston rod 20, thereby realize, oil cylinder stroke is measured to sensing control.In the present embodiment, when needs are changed other sensors 321 or sensor 321 and broken down, can rapidly original sensor 321 be disassembled, without changing sensor 321 mounting point, as long as new sensor is reinstalled on mounting plate 322, easy accessibility, with low cost.
In the present embodiment, sensor 321 is laser displacement sensor, and measuring piece 31 is laser induced.In the present embodiment, when hydraulic cylinder works, laser displacement sensor can detect its distance with respect to laser induced, thereby detects the stroke of oil hydraulic cylinder.
In another embodiment of the present utility model, sensor 321 is stay wire sensor, and measuring piece 31 is the nonelastic bracing wire being connected with stay wire sensor, and one end of bracing wire is connected on piston rod 20, and stay wire sensor is arranged on mounting plate 322 by screw.When piston rod 20 work, bracing wire is stretched with piston rod 20, and stay wire sensor is monitored the extending amount of bracing wire in real time, thereby realizes the monitoring to hydraulic cylinder travel.And bracing wire to be nonelastic bracing wire can guarantee that the stroke that stay wire sensor detects is the stroke of oil hydraulic cylinder reality, prevent the measurement error that bracing wire brings because there is deformation in telescopic process.In fact, stay wire sensor comprises the control device that can control nonelastic bracing wire folding and unfolding, and when bracing wire is stretched by piston rod 20, control device is controlled bracing wire and extended; When bracing wire is shortened with the shortening of piston rod 20, control device is controlled pull wire coil haulback sensor internal, can accurately control hydraulic cylinder travel.
In other embodiments, measuring piece 31 can also be other the inelastic telescopic bodys that can be controlled by sensor 321.More preferably, sensor 321 of the present utility model and measuring piece 31 can also be that free end is fixed on cylinder body 10, and fixed end is fixed on the tape measure on piston rod 20.Such oil hydraulic cylinder is not only simple in structure, and with low cost.
Preferably, bracing wire is parallel with the axis of piston rod 20, can effectively avoid measuring piece 31 run-off the straights and cause the inaccurate problem of measurement result.
Preferably, mounting plate 322 is arranged on the entry end of cylinder body 10, reduces the space that whole stroke measuring and control device 30 takies, and makes total compact.Mounting plate 322 can also be arranged on the arbitrary position of cylinder body 10 outer surfaces in other embodiments, if can be when guarantee measuring bracing wire be parallel to the center line of piston rod 20.
The oil hydraulic cylinder of the tape travel observing and controlling of the present embodiment also comprises erecting device 40, and this erecting device 40 is fixedly installed on piston rod 20 outer ends, and the first end of bracing wire is fixedly connected with stay wire sensor, and the second end of bracing wire is connected with erecting device 40.
According to the present embodiment, erecting device 40 comprises supporting base 41 and assembling set 42.Wherein, supporting base 41 is fixedly installed on piston rod 20, and perpendicular to the axis of piston rod 20.Supporting base 41, perpendicular to the axis of piston rod 20, can prevent from causing the accurate not phenomenon of stroke measurment result because of the skew of supporting base 41.Assembling set 42 be removably disposed in supporting base 41 away from piston rod 20 one end, the second end of bracing wire is connected on assembling set 42.
Preferably, assembling set 42 is double-screw bolt, and supporting base 41 axially offers the tapped hole suitable with double-screw bolt along piston rod 20, and double-screw bolt is locked on supporting base 41 by being arranged on the locking nut 44 at its two ends.In the present embodiment, it is parallel with the axis of piston rod 20 that supporting base 41 is used for installing the axis of tapped hole of double-screw bolt, and the double-screw bolt that can guarantee to be arranged in tapped hole is parallel to piston rod 20.When carrying out stroke monitoring, can effectively avoid double-screw bolt to be offset and cause bracing wire parallel with the center line of piston rod 20, and then the problem of the validity of impact measurement.The two ends of double-screw bolt are fixed on supporting base 41 by nut 44, can prevent because screw rod in telescopic process, relative displacement occurs when piston rod 20 is flexible, thereby avoid double-screw bolt to become flexible the error that the stroke measurment to oil hydraulic cylinder brings.
Preferably, the end of the close bracing wire of double-screw bolt is provided with the groove 421 extending vertically, and the second end of bracing wire is removably disposed in groove 421.More preferably, be provided with link 43 in groove 421, the second end of bracing wire is connected on link 43.In the present embodiment, when bracing wire is connected to groove 421 place, bracing wire from stud shaft to the groove 421 of offering that can avoid link position place along easily and the uneven problem of axis of piston rod 20.In the time of need to using stroke measuring and control device 30, just the second end of bracing wire is connected to groove 421 places, while not needing, disassembles, simple and quick.In the present embodiment, link 43 is bolt, and in other embodiments, link 43 can also be dismountable linkage structures such as screw.
While using the oil hydraulic cylinder of tape travel observing and controlling of the present utility model, only need sensor 321 be made zero at initial point, motion along with the piston rod 20 of oil hydraulic cylinder, drive measuring piece 31 and monitoring department 32 that relative displacement occurs, the change in displacement of sensor 321 control measurement part 31 relative monitoring departments 32, can detect the change in displacement of the piston rod 20 of corresponding oil hydraulic cylinder, thereby realize the sensing control to the stroke of oil hydraulic cylinder.
According to another embodiment of the present utility model, a kind of engineering machinery is provided, this project machinery comprises the oil hydraulic cylinder of tape travel observing and controlling, the oil hydraulic cylinder of the tape travel observing and controlling that the oil hydraulic cylinder of tape travel observing and controlling is above-mentioned.
From above description, can find out, the utility model the above embodiments have realized following technique effect: the stroke measuring and control device that the oil hydraulic cylinder of tape travel observing and controlling comprises cylinder body, piston rod and is arranged on cylinder body outside, and stroke measuring and control device comprises the monitoring department of measuring piece and control measurement part; Wherein, one of measuring piece and monitoring department are fixed on cylinder body, and another is fixed on the outer end of piston rod.According to the oil hydraulic cylinder of tape travel observing and controlling of the present utility model, stroke measuring and control device is arranged on cylinder body outside, no matter under what occasion, after the oil hydraulic cylinder of tape travel observing and controlling is installed, measuring piece with the flexible of piston rod with monitoring department generation relative displacement, by the displacement amount of monitoring department control measurement part, can measure the stroke of oil hydraulic cylinder, and without the mounting point that changes stroke measuring and control device, stroke measuring and control device can simply be transformed and obtain on original oil hydraulic cylinder basis, convenient and practical, low production cost.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (11)
1. the oil hydraulic cylinder of a tape travel observing and controlling, comprise cylinder body (10) and piston rod (20), it is characterized in that, also comprise and be arranged on the outside stroke measuring and control device (30) of described cylinder body (10), described stroke measuring and control device (30) comprises the monitoring department (32) of measuring piece (31) and the described measuring piece of monitoring (31), one of them is fixed on described cylinder body (10) above described measuring piece (31) and described monitoring department (32), and another is fixed on the outer end of described piston rod (20).
2. the oil hydraulic cylinder of tape travel observing and controlling according to claim 1, it is characterized in that, described monitoring department (32) comprises the described measuring piece of monitoring (31) and the sensor (321) of the relative displacement of described monitoring department (32) and the mounting plate (322) of the described sensor of installation (321).
3. the oil hydraulic cylinder of tape travel observing and controlling according to claim 2, is characterized in that, described sensor (321) is laser displacement sensor, and described measuring piece (31) is laser induced.
4. the oil hydraulic cylinder of tape travel observing and controlling according to claim 2, it is characterized in that, described sensor (321) is stay wire sensor, and described measuring piece (31) is the bracing wire being connected with described stay wire sensor, and one end of described bracing wire is connected on described piston rod (20).
5. the oil hydraulic cylinder of tape travel observing and controlling according to claim 4, is characterized in that, described bracing wire is parallel with the axis of described piston rod (20).
6. according to the oil hydraulic cylinder of the tape travel observing and controlling described in claim 4 or 5, it is characterized in that, the oil hydraulic cylinder of described tape travel observing and controlling also comprises the erecting device (40) of the outer end that is fixedly installed on described piston rod (20), the first end of described bracing wire is arranged on described stay wire sensor, and the second end of described bracing wire is connected with described erecting device (40).
7. the oil hydraulic cylinder of tape travel observing and controlling according to claim 6, is characterized in that, described erecting device (40) comprising:
Supporting base (41), is fixedly installed on described piston rod (20) upper, and perpendicular to the axis of described piston rod (20);
Assembling set (42), is removably disposed in one end away from described piston rod (20) of described supporting base (41), and described bracing wire is connected on described assembling set (42).
8. the oil hydraulic cylinder of tape travel observing and controlling according to claim 7, it is characterized in that, described assembling set (42) is double-screw bolt, described supporting base (41) axially offers the tapped hole suitable with described double-screw bolt along described piston rod (20), and the locking nut (44) that passes through at the two ends of described double-screw bolt is locked on described supporting base (41).
9. the oil hydraulic cylinder of tape travel observing and controlling according to claim 8, is characterized in that, the end of the close described bracing wire of described double-screw bolt is provided with the groove (421) extending vertically, and the second end of described bracing wire is removably disposed in described groove (421).
10. the oil hydraulic cylinder of tape travel observing and controlling according to claim 9, is characterized in that, is provided with link (43) in described groove (421), and the second end of described bracing wire is connected on described link (43).
11. 1 kinds of engineering machinery, comprise and it is characterized in that the oil hydraulic cylinder of tape travel observing and controlling, the oil hydraulic cylinder of described tape travel observing and controlling is the oil hydraulic cylinder of the tape travel observing and controlling described in any one in claim 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484447.1U CN203394928U (en) | 2013-08-08 | 2013-08-08 | Hydraulic cylinder with stroke measurement and control function and engineering machinery comprising same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484447.1U CN203394928U (en) | 2013-08-08 | 2013-08-08 | Hydraulic cylinder with stroke measurement and control function and engineering machinery comprising same |
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| Publication Number | Publication Date |
|---|---|
| CN203394928U true CN203394928U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320484447.1U Expired - Fee Related CN203394928U (en) | 2013-08-08 | 2013-08-08 | Hydraulic cylinder with stroke measurement and control function and engineering machinery comprising same |
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| CN (1) | CN203394928U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567770A (en) * | 2014-12-29 | 2015-04-29 | 一重集团大连设计研究院有限公司 | Hydraulic cylinder stroke display device |
| CN104613051A (en) * | 2015-01-09 | 2015-05-13 | 中国航空工业集团公司金城南京机电液压工程研究中心 | External redundancy sensor installation structure |
| CN108895060A (en) * | 2018-09-10 | 2018-11-27 | 江阴市洪腾机械有限公司 | A kind of built-in stroke measurment hydraulic cylinder |
-
2013
- 2013-08-08 CN CN201320484447.1U patent/CN203394928U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567770A (en) * | 2014-12-29 | 2015-04-29 | 一重集团大连设计研究院有限公司 | Hydraulic cylinder stroke display device |
| CN104613051A (en) * | 2015-01-09 | 2015-05-13 | 中国航空工业集团公司金城南京机电液压工程研究中心 | External redundancy sensor installation structure |
| CN108895060A (en) * | 2018-09-10 | 2018-11-27 | 江阴市洪腾机械有限公司 | A kind of built-in stroke measurment hydraulic cylinder |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20160808 |
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| CF01 | Termination of patent right due to non-payment of annual fee |