CN203441869U - AGC hydraulic cylinder - Google Patents
AGC hydraulic cylinder Download PDFInfo
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- CN203441869U CN203441869U CN201320557814.6U CN201320557814U CN203441869U CN 203441869 U CN203441869 U CN 203441869U CN 201320557814 U CN201320557814 U CN 201320557814U CN 203441869 U CN203441869 U CN 203441869U
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- piston rod
- groove
- hydraulic cylinder
- oil hydraulic
- capping
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Abstract
The utility model discloses an AGC hydraulic cylinder. The AGC hydraulic cylinder comprises a cylinder body, a cylinder cover, a piston rod and a displacement sensor. The piston rod is sleeved with a cavity formed by the cylinder body and the cylinder cover. An electronic component of the displacement sensor is arranged inside the piston rod, and a magnetic ring is fixedly connected with the cylinder body. The piston rod comprises a piston rod body, a seal cover body of an integrated plate structure and a bearing plate, wherein the stretching end of the piston rod body is provided with an installing groove, the electronic component is located in the installing groove, the end face, located on one side of the stretching end, of the piston rod body abuts against the end face of the seal cover body, a sealing ring is arranged between the piston rod body and the seal cover body, the diameter of the seal cover body is larger than that of the stretching end, the piston rod body is provided with a wire outlet groove hole, the seal cover body is provided with a wire outlet through hole, one end of the wire outlet groove hole is communicated with the installing groove, the other end of the wire outlet groove hole is communicated with the wire outlet through hole, and the bearing plate is used for transmitting rolling force, located at the side end of the seal cover body and fixedly connected with the seal cover body. The seal cover body of the integrated plate structure is high in sealing effect and capable of preventing cooling water from entering the interior of the piston rod.
Description
Technical field
The utility model relates to hot-rolled steel section Mill Technology field, particularly a kind of AGC oil hydraulic cylinder.
Background technique
Shape mill is in rolling process, and by AGC(Automatic Generation Control, automatic generation amount is controlled) the flexible adjustment rolling rolling reduction of oil hydraulic cylinder, to realize the rolling of different-thickness rolled piece.In rolling process, AGC oil hydraulic cylinder bears huge rolling load, and, on AGC oil hydraulic cylinder, displacement transducer is installed, by the extending amount of displacement sensor AGC oil hydraulic cylinder.
Wherein, this displacement transducer is generally magnetostrictive liquid level sensor, and the working principle of magnetostrictive liquid level sensor is: the time that the strain-pulse signal producing while utilizing two different magnetic fields to intersect is detected calculates the accurate location of magnetic field crosspoint.The driving pulse that magnetic field produces from the electronic unit in sensor electronic storehouse, caudad advance from electronics storehouse end with the light velocity along the waveguide filament made from high-magnetostriction material in sensor measuring staff in the magnetic field that this driving pulse produces, when the permanent-magnetic field with movable, (this permanent-magnetic field comes from the magnet ring that permanent magnet is made, this magnet ring is generally arranged on the moving plate that needs detection position) while intersecting, due to magneto-striction phenomenon, waveguide filament produces a mechanical strain pulse in crosspoint, and from then on put through waveguide filament and return to electronics storehouse end with the velocity of sound, this strain-pulse is detected by the testing circuit in electronics storehouse.Therefore, from launching one, initiatively Pulse wave is to receiving a strain-pulse ripple, and the time between this is exactly the time that the velocity of sound is transmitted in waveguide filament, the known velocity of sound (fixed amount is 3000m/s) and passing time, and this distance has just been determined certainly.When permanent magnet moves to new position, redefine above-mentioned measurement.
In prior art, some AGC oil hydraulic cylinders adopt two displacement transducers, and, two displacement transducers are arranged in cylinder body outside, the displacement transducer of this structure lacks safety protection, be very easily subject to the pollution of external environment condition and ooze erosion, thereby the reliability of system is lower.In prior art, also there is the AGC oil hydraulic cylinder that displacement transducer is placed in to cylinder interior, for example, make the magnet ring of displacement transducer be positioned at cylinder body and be connected with cylinder base, with the electronic unit of seasonal displacement transducer, be positioned at piston rod.Now, piston rod stretches out on the external part of cylinder body and is coated with for this displacement transducer being sealed in to the capping of piston rod inside.Because piston rod external part need to bear huge rolling load, thereby this capping need to have higher hardness to bear the rolling load in rolling process.In prior art, for cost-saving, the capping on piston rod external part is generally comprised of a ring body and a bearing plate, and this bearing plate is positioned at this ring body center, and has higher hardness to bear rolling load.But, this capping in actual use, owing to having gap between ring body and bearing plate, and be difficult for reaching sealing effect preferably, therefore, in piston rod, easily infilter cooling water, steam or other pollution impurity, cause the displacement transducer that is positioned at piston rod polluted and damage.
Therefore,, in AGC oil hydraulic cylinder, how, when realizing rolling load and transmitting, the displacement transducer in protection AGC oil hydraulic cylinder, is those skilled in the art's technical problems urgently to be resolved hurrily.
Model utility content
In view of this, the utility model provides a kind of AGC oil hydraulic cylinder, and its piston rod can have by bearing plate and capping body the several functions that transmits mill rolling force and guard bit displacement sensor concurrently.
For achieving the above object, the utility model provides following technological scheme:
A kind of AGC oil hydraulic cylinder, comprise gray iron, piston rod and displacement transducer, described piston rod is sheathed in the cavity of described cylinder body and described cylinder cap formation, the electronic unit of described displacement transducer is arranged in described piston rod, the magnet ring of described displacement transducer and described cylinder body are connected, wherein, described piston rod comprises:
Piston rod body, the external part of described piston rod body is provided with mounting groove, and described electronic unit is positioned at described mounting groove;
Capping body, described capping body is integral type platy structure, on described piston rod body, be positioned at the end face of described external part one side and the end face of described capping body offsets, and between is provided with seal ring, the diameter of described capping body is greater than the diameter of described external part, on described piston rod body, is provided with outlet slotted eye, on described capping body, is provided with out line three-way hole, described outlet slotted eye one end communicates with described mounting groove, the other end with described in go out line three-way hole and communicate;
For transmitting the bearing plate of rolling load, described bearing plate is positioned at the side of described capping body, and is connected with described capping body.
Preferably, in above-mentioned AGC oil hydraulic cylinder, the center of the end face that described capping body does not offset with described piston rod body is provided with the first groove, and the shape of described the first groove and described bearing plate are adaptive, and described bearing plate is fixed in described the first groove.
Preferably, in above-mentioned AGC oil hydraulic cylinder, described bearing plate is circular plate, and described the first groove is the circular groove with described bearing plate adaptation.
Preferably, in above-mentioned AGC oil hydraulic cylinder, the end face center that described capping body offsets for the external part with described piston rod body is provided with boss, the external part end face of described piston rod body is provided with the second groove, described boss and described the second groove are adaptive, and described mounting groove and described outlet slotted eye are arranged at respectively the bottom of described the second groove.
Preferably, in above-mentioned AGC oil hydraulic cylinder, described outlet slotted eye is the groove structure that is positioned at the external part end face of described piston rod body.
Preferably, in above-mentioned AGC oil hydraulic cylinder, described in go out line three-way hole outlet be positioned at the side of described capping body.
Preferably, in above-mentioned AGC oil hydraulic cylinder, described capping body and described bearing plate removably connect by the first connecting bolt.
Preferably, in above-mentioned AGC oil hydraulic cylinder, described capping body and piston rod body removably connect by the second connecting bolt.
Preferably, in above-mentioned AGC oil hydraulic cylinder, the position corresponding with described mounting groove, bottom in described cylinder body is provided with locating column, the bottom of described piston rod body is provided with the locating slot with described locating column adaptation, described locating column and described locating slot Spielpassung, described magnet ring is arranged in described installation cylinder, and measuring staff one end of described displacement transducer is connected with described electronic unit, and the other end is sheathed in the center hole of described installation cylinder.
Preferably, in above-mentioned AGC oil hydraulic cylinder, the bottom in described cylinder body is provided with guide rod, and the corresponding position of described piston rod body bottom is provided with guiding groove.
From above-mentioned technological scheme, can find out, in the AGC oil hydraulic cylinder that the utility model embodiment provides, because capping body is integral type platy structure, its diameter is greater than the diameter of piston rod body external part, therefore, this capping body can effectively prevent cooling water, steam or other impurity enter piston rod inside by the external part of piston rod body, especially can effectively avoid capping body upside water to enter in piston rod, thereby can reach to the mounting groove in piston rod higher sealing effect, the displacement transducer electronic unit being arranged in mounting groove is effectively protected, reduce the maintenance frequency of displacement transducer.Visible, with respect to the annular capping that is difficult to effective sealing in prior art, in the AGC oil hydraulic cylinder that the utility model embodiment provides, between the end face of the end face of piston rod body and capping body, more easily realize sealing, and, the capping body of integral type platy structure is more conducive to stop that cooling water or steam enter in mounting groove along gap, thereby obviously improved the working environment of displacement transducer, effectively extended the working life of displacement transducer, reduce the consumption of displacement transducer, obtained extraordinary economic benefit.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the assembling schematic diagram of the AGC oil hydraulic cylinder that provides of the utility model embodiment;
Fig. 2 is the plan view of Fig. 1.
Wherein, 1 is bearing plate, and 2 is capping body, 3 is electronic unit, and 4 is the second connecting bolt, and 5 is hydraulic cylinder sealing group, 6 is cylinder cap, and 7 is cylinder body, and 8 is piston rod body, 9 is magnet ring, and 10 is guide rod, and 11 for going out line three-way hole, 12 is the first connecting bolt, and 13 is oil hydraulic cylinder lifting attachment hole, and 14 is cylinder body connecting bolt, 15 is outlet slotted eye, and 16 is seal ring.
Embodiment
The utility model discloses a kind of AGC oil hydraulic cylinder, its piston rod can have by bearing plate and capping body the several functions that transmits mill rolling force and guard bit displacement sensor concurrently.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, Fig. 1 is the assembling schematic diagram of the AGC oil hydraulic cylinder that provides of the utility model embodiment, and Fig. 2 is the plan view of Fig. 1.
The AGC oil hydraulic cylinder that the utility model embodiment provides, comprise cylinder body 7, cylinder cap 6, piston rod and displacement transducer, cylinder body 7 is connected on mill housing, cylinder body 7 is fixedly connected with by cylinder body connecting bolt 14 with cylinder cap 6, piston rod is sheathed in the cavity of cylinder body 7 and cylinder cap 6 formations, the electronic unit 3 of displacement transducer is arranged in piston rod, and magnet ring 9 and the cylinder body 7 of displacement transducer are connected.Wherein, piston rod comprises piston rod body 8, capping body 2 and bearing plate 1, and the external part of piston rod body 8 (being one end that piston rod body 8 stretches out the cavity of cylinder body 7 and cylinder cap 6 formations) is provided with mounting groove, the electronic unit 3 of displacement transducer is positioned at mounting groove; Capping body 2 is integral type platy structure, on piston rod body 8, be positioned at the end face of external part one side and the end face of capping body 2 offsets, and between is provided with seal ring 16, the diameter of capping body 2 is greater than the diameter of piston rod body 8 external parts, on piston rod body 8, be provided with outlet slotted eye 15, on capping body 2, be provided with out line three-way hole 11, outlet slotted eye 15 one end communicate with mounting groove, the other end communicates with going out line three-way hole 11, and the link tester on displacement transducer electronic unit 3 is crossed this outlet slotted eye 15 and gone out line three-way hole 11 and stretches out piston rod; Bearing plate 1 is positioned at the side of capping body 2 and is connected with capping body 2, and bearing plate 1 has higher hardness, for transmitting rolling load, therefore fabricating cost is higher with respect to capping body 2.
From technique scheme, can find out, capping body 2 in the AGC oil hydraulic cylinder providing due to the utility model embodiment is integral type platy structure, its diameter is greater than the diameter of piston rod body 8 external parts, therefore, this capping body 2 can effectively prevent cooling water, steam or other impurity enter piston rod inside by the external part of piston rod body 8, especially can effectively avoid capping body upside water to enter in piston rod, thereby can reach to the mounting groove in piston rod higher sealing effect, the displacement transducer electronic unit 3 being arranged in mounting groove is effectively protected, reduce the maintenance frequency of displacement transducer.Visible, with respect to the annular capping that is difficult to effective sealing in prior art, in the AGC oil hydraulic cylinder that the utility model embodiment provides, between the end face of the end face of piston rod body 8 and capping body 2, more easily realize sealing, and, the capping body 2 of integral type platy structure is more conducive to stop that cooling water or steam enter in mounting groove along gap, thereby obviously improved the working environment of displacement transducer, effectively extended the working life of displacement transducer, reduce the consumption of displacement transducer, obtained extraordinary economic benefit.
As shown in Figure 1, in specific embodiment, the center of the end face (being the upper surface of capping body 2 in Fig. 1) that capping body 2 does not offset with piston rod body 8 is provided with the first groove, the shape of the first groove and bearing plate 1 adaptation.For example, bearing plate 1 is circular plate, and the first groove is the circular groove with bearing plate 1 adaptation.And bearing plate 1 is fixed in the first groove by the first connecting bolt 12 with removably connecting.Said structure be provided with the effective location being beneficial between bearing plate 1 and capping body 2, strengthen join strength between the two, and be convenient to bearing plate 1 to change.Further, the end face that capping body 2 offsets for the external part with piston rod body 8 (being the lower surface of capping body 2 in Fig. 1) center is provided with boss, the external part end face of piston rod body 8 is provided with the second groove, this boss and the second groove are adaptive, and capping body 2 removably connects by the second connecting bolt 4 with piston rod body 8.Yi Zhi, the interface arrangment that this boss and the second groove form is conducive to the effective location between capping body 2 and piston rod body 8, strengthen join strength between the two, and be convenient to the transmission sensors electronic unit 3 between capping body 2 and piston rod body 8 to keep in repair and change.Particularly, mounting groove and outlet slotted eye 15 are arranged at respectively the bottom of the second groove, and, outlet slotted eye 15 is for being positioned at the groove structure of the external part end face of piston rod body 8, the import that goes out line three-way hole 11 communicates with outlet slotted eye 15 one end, the outlet that goes out line three-way hole 11 be positioned at the side of capping body 2 and after setting the cable of displacement transducer with seal arrangement sealing, to prevent that displacement transducer in piston rod from receiving, pollute and damage.
Visible, the piston rod in the AGC oil hydraulic cylinder that the utility model embodiment provides, by between bearing plate 1, capping body 2 and piston rod body 8 successively nested structure position, not only compact structure, good sealing effect, and safe and reliable, be convenient to safeguard.But specific embodiment of the utility model is not limited to this, those skilled in the art easily expect other specific embodiment, for example, in a specific embodiment, the external part of piston rod body 8 is provided with boss, simultaneously at the lower surface of capping body 2, is provided with the groove with this boss adaptation; For example, outlet slotted eye 15 is set to through-hole structure; For example, bearing plate 1 is rectangular plate, and the first groove is the rectangular recess with bearing plate 1 adaptation; Etc..Therefore, the utility model is to this and be not specifically limited.
In the specific embodiment providing at the utility model, the position corresponding with mounting groove, bottom in cylinder body 7 is provided with locating column, the bottom of piston rod body 8 is provided with the locating slot with this locating column adaptation, locating column and locating slot Spielpassung, the magnet ring 9 of displacement transducer is arranged to be installed in cylinder, measuring staff one end of displacement transducer is connected with electronic unit 3, and the other end is sheathed in the center hole of locating column.In order further to optimize technique scheme, the bottom in cylinder body 7 is also provided with guide rod 10, and the position corresponding with guide rod 10, piston rod body 8 bottoms is provided with guiding groove, with the piston rod in telescopic process, leads.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To these embodiments' multiple modification, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an AGC oil hydraulic cylinder, comprise cylinder body (7), cylinder cap (6), piston rod and displacement transducer, described piston rod is sheathed in the cavity of described cylinder body (7) and described cylinder cap (6) formation, the electronic unit of described displacement transducer (3) is arranged in described piston rod, the magnet ring of described displacement transducer (9) is connected with described cylinder body (7), it is characterized in that, described piston rod comprises:
Piston rod body (8), the external part of described piston rod body (8) is provided with mounting groove, and described electronic unit (3) is positioned at described mounting groove;
Capping body (2), described capping body (2) is integral type platy structure, on described piston rod body (8), be positioned at the end face of described external part one side and the end face of described capping body (2) offsets, and between is provided with seal ring (16), the diameter of described capping body (2) is greater than the diameter of described external part, on described piston rod body (8), be provided with outlet slotted eye (15), on described capping body (2), be provided with out line three-way hole (11), described outlet slotted eye (15) one end communicates with described mounting groove, the other end with described in go out line three-way hole (11) and communicate,
For transmitting the bearing plate (1) of rolling load, described bearing plate (1) is positioned at the side of described capping body (2), and is connected with described capping body (2).
2. AGC oil hydraulic cylinder according to claim 1, it is characterized in that, the center of the end face that described capping body (2) does not offset with described piston rod body (8) is provided with the first groove, the shape of described the first groove and described bearing plate (1) adaptation, described bearing plate (1) is fixed in described the first groove.
3. AGC oil hydraulic cylinder according to claim 2, is characterized in that, described bearing plate (1) is circular plate, and described the first groove is the circular groove adaptive with described bearing plate (1).
4. AGC oil hydraulic cylinder according to claim 1, it is characterized in that, the end face center that described capping body (2) offsets for the external part with described piston rod body (8) is provided with boss, the external part end face of described piston rod body (8) is provided with the second groove, described boss and described the second groove are adaptive, and described mounting groove and described outlet slotted eye (15) are arranged at respectively the bottom of described the second groove.
5. AGC oil hydraulic cylinder according to claim 1, is characterized in that, described outlet slotted eye (15) is for being positioned at the groove structure of the external part end face of described piston rod body (8).
6. AGC oil hydraulic cylinder according to claim 1, is characterized in that, described in go out line three-way hole (11) outlet be positioned at the side of described capping body (2).
7. AGC oil hydraulic cylinder according to claim 1, is characterized in that, described capping body (2) removably connects by the first connecting bolt (12) with described bearing plate (1).
8. AGC oil hydraulic cylinder according to claim 1, is characterized in that, described capping body (2) removably connects by the second connecting bolt (4) with piston rod body (8).
9. AGC oil hydraulic cylinder according to claim 1, it is characterized in that, the position corresponding with described mounting groove, bottom in described cylinder body (7) is provided with locating column, the bottom of described piston rod body (8) is provided with the locating slot with described locating column adaptation, described locating column and described locating slot Spielpassung, described magnet ring is arranged in described installation cylinder, and measuring staff one end of described displacement transducer is connected with described electronic unit (3), and the other end is sheathed in the center hole of described installation cylinder.
10. according to the AGC oil hydraulic cylinder described in claim 1-9 any one, it is characterized in that, the bottom in described cylinder body (7) is provided with guide rod (10), and the corresponding position of described piston rod body (8) bottom is provided with guiding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557814.6U CN203441869U (en) | 2013-09-09 | 2013-09-09 | AGC hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557814.6U CN203441869U (en) | 2013-09-09 | 2013-09-09 | AGC hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441869U true CN203441869U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557814.6U Expired - Fee Related CN203441869U (en) | 2013-09-09 | 2013-09-09 | AGC hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441869U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106460876A (en) * | 2014-06-13 | 2017-02-22 | 法雷奥离合器公司 | Hydraulic cylinder, production method thereof and clutch or brake control system comprising said cylinder |
| CN108799227A (en) * | 2018-06-23 | 2018-11-13 | 江苏创良智能数控科技有限公司 | A kind of cylinder buffer valve and numerically-controlled machine tool deceleration oil cylinder |
-
2013
- 2013-09-09 CN CN201320557814.6U patent/CN203441869U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106460876A (en) * | 2014-06-13 | 2017-02-22 | 法雷奥离合器公司 | Hydraulic cylinder, production method thereof and clutch or brake control system comprising said cylinder |
| CN108799227A (en) * | 2018-06-23 | 2018-11-13 | 江苏创良智能数控科技有限公司 | A kind of cylinder buffer valve and numerically-controlled machine tool deceleration oil cylinder |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20160909 |