CN201461595U - High temperature drilling hydraulic cylinder with displacement transducer - Google Patents
High temperature drilling hydraulic cylinder with displacement transducer Download PDFInfo
- Publication number
- CN201461595U CN201461595U CN2009201081509U CN200920108150U CN201461595U CN 201461595 U CN201461595 U CN 201461595U CN 2009201081509 U CN2009201081509 U CN 2009201081509U CN 200920108150 U CN200920108150 U CN 200920108150U CN 201461595 U CN201461595 U CN 201461595U
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- displacement transducer
- piston rod
- pull bar
- high temperature
- hydraulic cylinder
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Abstract
The utility model provides a high temperature drilling hydraulic cylinder with displacement transducer. The high temperature drilling hydraulic cylinder with displacement transducer comprises a body, a piston rod and a pull rod of the displacement transducer, the piston rod and pull rod are sheathed in the body movably and are connected end to end, the other end of the pull rod is connected with a data collecting and processing structure of the displacement transducer. In the utility model, the piston rod and pull rod are connected, thus omitting the intermediate links, and causing the detection to be more reliable and more precise.
Description
Technical field
The utility model relates to a kind of high temperature drill-in fluid cylinder pressure with displacement transducer.
Background technique
In the drilling type well wall coring instrument, the high temperature drill-in fluid Press cylinder device of traditional band displacement transducer as shown in Figure 1, drill-in fluid cylinder pressure 7 is arranged in the hydraulic pressure joint 6, and is fixed on the flange plate 5.The pull bar 2 that creeps into displacement transducer is parallel with the piston rod 1 of drill-in fluid cylinder pressure 7, is installed in jointly above the flange plate 5 of hydraulic pressure joint 6.Fixing pin 4 is fixed together creeping into the pull bar 2 of displacement transducer, the piston rod 1 of drill-in fluid cylinder pressure 7, the fixed plate 3 of motion.When the piston rod 1 of drill-in fluid cylinder pressure 7 moves, drive the fixed plate 3 of motion, the pull bar 2 that creeps into displacement transducer moves together, by the position of detecting position displacement sensor pull bar 2, just can detect the position of motion fixed plate 3, thereby can judge the motion state of motion.
Mainly there is following problem in the high temperature drill-in fluid cylinder pressure of traditional band displacement transducer:
1, the fixing pin 4 fixedly piston rod 1 of drill-in fluid cylinder pressure 7, the pull bar 2 that creeps into displacement transducer, motion fixed plate 3 simultaneously, for easy maintenance, each assembling link all has certain interval; Take apart when ressembling at fixing pin 4, its relative position is easy to change; Cause the relative position of detected motion inaccurate, cause folding core point position often to change, for coring causes big operating risk;
2, the flange plate 5 places perforate of hydraulic pressure joint 6 is many, and is movable sealing structure, in pull bar 2 movement processes of the piston rod 1 of drill-in fluid cylinder pressure 7, displacement transducer, easily mud is brought into hydraulic pressure and saves 6 inside, pollutes hydraulic oil; In addition holes, the also corresponding increase of the risk of leakage of hydraulic oil of opening more;
3, the parallelism of the piston rod 1 of the pull bar 2 of displacement transducer, drill-in fluid cylinder pressure 7 is difficult to guarantee that in movement process, the pull bar 2 of displacement transducer is subjected to radial force, and unfailing performance, the working life of displacement transducer reduce greatly.
4, drill-in fluid cylinder pressure 7 adopts the O circle to seal, and under high-temperature condition, the swell increment of O circle is bigger, and the resistance of start is very big, and oil hydraulic cylinder is slow in reacting.
The model utility content
The technical problems to be solved in the utility model provides that a kind of testing precision height, testing process are reliable, the high temperature drill-in fluid cylinder pressure of the band displacement transducer of long service life.
In order to address the above problem, the utility model provides a kind of high temperature drill-in fluid cylinder pressure with displacement transducer, comprise: body reaches the pull bar that is sleeved on interior end to end piston rod of described body and displacement transducer movably, and the described pull bar the other end links to each other with the data acquisition process structure of displacement transducer.
Preferably, described piston rod and described pull bar are all coaxial with described body.
Preferably, all adopt the high temperature lattice to enclose sealing between described piston rod and described pull bar and the described body.
The utlity model has following advantage:
1, the utility model piston rod and pull bar link together, and medium tache reduces, and detect reliable more and testing precision height.
2, piston rod in the utility model, pull bar are coaxial with body, make piston rod, pull bar movement process resistance reduce, and improve testing precision.
3, the utility model adopts the high temperature lattice to enclose sealing, and traditional relatively O circle sealing is reliable, has reduced the resistance to motion of oil hydraulic cylinder, has improved the grade of accuracy of oil hydraulic cylinder.
Description of drawings
Below in conjunction with accompanying drawing mode of execution of the present utility model is described further:
Fig. 1 shows the high temperature drill-in fluid Press cylinder device schematic representation of traditional band displacement transducer;
Fig. 2 shows a kind of high temperature drill-in fluid Press cylinder device schematic representation with displacement transducer of the utility model;
Fig. 3 shows the local enlarged diagram of a kind of high temperature drill-in fluid Press cylinder device with displacement transducer of the utility model.
Embodiment
As Fig. 2, shown in Figure 3, the utility model provides a kind of high temperature drill-in fluid cylinder pressure with displacement transducer, comprise: body 10 reaches the pull bar 12 that is sleeved on body 10 interior end to end piston rods 11 and displacement transducer movably, and pull bar 12 the other ends link to each other with the data acquisition process structure 13 of displacement transducer.
The utility model piston rod 11 links together with pull bar 12, and medium tache reduces, and detects reliable more and testing precision height.
Below the utility model is elaborated:
In the present embodiment, oil hydraulic cylinder mainly is made up of the two large divisions, and front end is the main body of oil hydraulic cylinder, comprises body 10, piston 20, piston rod 11, and the rear end is in series with the pull bar 12 of the displacement transducer 13 of sliding rheostat.Pull bar 12 and piston rod 11 be by being threaded, and be fixed on the piston 20 by second locking nut 18 and first locking nut 17 respectively, makes piston 20, piston rod 11 and pull bar 12 become one.In cylinder body 10, by the effect of hydraulic oil, promote in the movement process of piston 20, drive piston rod 11 and pull bar 12 and be synchronized with the movement, by detecting the movement position and the direction of pull bar 12, just can judge the exact position and the movement velocity of creeping into hydraulic cylinder piston rod 11 like this.
In the present embodiment, pull bar 12 parts are sleeved in the cylinder body 10, and part is in outside the body 10, and links to each other with displacement transducer 13.Fixed cover 15 before pull bar 12 is provided with body 10 joints, protect after the position corresponding with preceding fixed cover 15 is provided with on the body 10 and emit 16, before fixed cover 15 protect after by screw thread and oil hydraulic cylinder and emit 16 to be fixed together, and carry out accurate centering, guarantee the concentricity of pull bar 12 and piston 11; Pull bar 12 passes to protect behind the oil hydraulic cylinder and emits 16 center hole, and the screw thread by front end directly is fixed together with piston rod 11, and by 18 lockings of second locking nut, prevents to connect in movement process and become flexible.
In the present embodiment, piston rod 11 and piston 20 are fixed together by screw thread, lock with first locking nut 17; Prevent from being connected between piston rod 11 and the piston 20 to unclamp.Adopt O circle 21 to seal simultaneously between piston 20 and the piston rod 11.Two high temperature lattice are installed above the piston 20 enclose 14, guarantee the kinematic dexterity of piston 20 in cylinder body 10.
In the present embodiment, protect behind pull bar 12 and the oil hydraulic cylinder and adopt the high temperature lattice to enclose 14 between emitting 16 to seal.Piston rod 11 parts are in the body 10; be provided with preceding cylinder head 22 with body 10 connecting places; enclosing 14 by lattice between the cylinder head 22 before piston rod 11 and the oil hydraulic cylinder seals; and wipe dust above the piston rod 11 off by the dust-blocking ring 23 on the cylinder head 22 before being arranged on, protection hydraulic oil is avoided polluting.
In the present embodiment, pull bar 12 directly and piston rod 11 be cascaded, in piston rod 11 movement processes,, can accurately detect position and the travel direction and the speed of piston rod 11 by the feedback signal of the pull bar 12 of connecting later.All motive sealings are adopted high temperature lattice to enclose 14 to seal in the body 10, and starting resistance of the present utility model is smaller, guarantees the kinematic dexterity under high-temperature condition.In addition, by the locking effect of first locking nut 17, second locking nut 18, guarantee that pull bar 12, piston 20, piston rod 11 connect reliable.
In sum; it below only is preferred embodiment of the present utility model; be not to be used to limit protection domain of the present utility model; therefore; all any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. high temperature drill-in fluid cylinder pressure with displacement transducer, it is characterized in that: comprise that body (10) reaches the pull bar (12) that is sleeved on interior end to end piston rod (11) of described body (10) and displacement transducer movably, described pull bar (12) the other end links to each other with the data acquisition process structure (13) of displacement transducer.
2. the high temperature drill-in fluid cylinder pressure of band displacement transducer as claimed in claim 1 is characterized in that: described piston rod (11) and described pull bar (12) are all coaxial with described body (10).
3. the high temperature drill-in fluid cylinder pressure of band displacement transducer as claimed in claim 2 is characterized in that: all adopt the high temperature lattice to enclose (14) sealing between described piston rod (11) and described pull bar (12) and the described body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201081509U CN201461595U (en) | 2009-05-14 | 2009-05-14 | High temperature drilling hydraulic cylinder with displacement transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201081509U CN201461595U (en) | 2009-05-14 | 2009-05-14 | High temperature drilling hydraulic cylinder with displacement transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461595U true CN201461595U (en) | 2010-05-12 |
Family
ID=42388948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201081509U Expired - Fee Related CN201461595U (en) | 2009-05-14 | 2009-05-14 | High temperature drilling hydraulic cylinder with displacement transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461595U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179664A (en) * | 2014-08-25 | 2014-12-03 | 重庆耐德燃气设备有限公司 | Compression cylinder of hydraulic piston type natural gas compressor |
| CN110540146A (en) * | 2019-09-19 | 2019-12-06 | 郑州煤矿机械集团股份有限公司 | Pushing jack easy for replacing magnetic ring under coal mine |
-
2009
- 2009-05-14 CN CN2009201081509U patent/CN201461595U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179664A (en) * | 2014-08-25 | 2014-12-03 | 重庆耐德燃气设备有限公司 | Compression cylinder of hydraulic piston type natural gas compressor |
| CN110540146A (en) * | 2019-09-19 | 2019-12-06 | 郑州煤矿机械集团股份有限公司 | Pushing jack easy for replacing magnetic ring under coal mine |
| CN110540146B (en) * | 2019-09-19 | 2020-08-25 | 郑州煤矿机械集团股份有限公司 | Pushing jack easy for replacing magnetic ring under coal mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100512 Termination date: 20170514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |