CN206458663U - One kind can change rod end chamber active area and anti-piston rotating hydraulic cylinder - Google Patents
One kind can change rod end chamber active area and anti-piston rotating hydraulic cylinder Download PDFInfo
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- CN206458663U CN206458663U CN201720158128.XU CN201720158128U CN206458663U CN 206458663 U CN206458663 U CN 206458663U CN 201720158128 U CN201720158128 U CN 201720158128U CN 206458663 U CN206458663 U CN 206458663U
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Abstract
It can change rod end chamber active area and anti-piston rotating hydraulic cylinder the utility model discloses one kind, belong to hydraulic cylinder technical field.The utility model includes cylinder cap, cylinder seat, piston, pressing plate, displacement transducer, sleeve, anti-rotation piston, plunger and spring；Cylinder cap is connected by connecting bolt with cylinder seat, and is sealed with the second sealing ring；Piston is arranged between cylinder cap and cylinder seat；Pressing plate is fixed on the top of piston by four pressing plate connecting bolts；The sleeve intracavitary that sleeve is constituted located at piston with cylinder seat；Displacement transducer is placed in sleeve；The through hole for setting and coordinating with plunger hole on plunger hole, pressing plate is set on piston, plunger is in plunger hole, and its top connecting spring, plunger hole tightens closure with plunger bolt.The utility model has the characteristics of high accuracy, high response, can prevent piston from being rotated in reciprocating motion, and the power output bigger than Normal hydraulic cylinder is provided in piston retraction movement, and functional reliability is high.
Description
Technical field
The utility model is related to hydraulic cylinder technical field, and rod end chamber acting surface can be changed more specifically to one kind
Long-pending and anti-piston rotating hydraulic cylinder.
Background technology
Plain-barreled roll, the roll gap adjustment of edger roll need high accuracy, the hydraulic cylinder of high response in milling train field, and hydraulic cylinder will
Can the anti-piston rod rotation under radial direction heavy load, therefore the type hydraulic cylinder the has spy such as diameter is big, stroke is short, band Displacement Feedback
Point, when piston driving load is moved back and forth, if the active area of piston or piston rod could be changed, and then it would be defeated to improve hydraulic cylinder
Exert oneself just significant.The hydraulic cylinder used at present does not possess the function of anti-piston rotation largely, but is used in milling train
The hydraulic cylinder connection roll of roll gap adjustment, in order to meet the required precision of rolled piece, it is necessary to which hydraulic cylinder piston has anti-rotational want
Ask；And current asymmetric servo cylinder rod end chamber active area is all motion that is immutable, so being retracted in rod end chamber
Process provides active force than stretching process and is much smaller.
Utility model content
1st, the problem of solving
The shortcomings and deficiencies existed for prior art, the utility model, which provides one kind, can change rod end chamber acting surface
Long-pending and anti-piston rotating hydraulic cylinder, the characteristics of being responded with high accuracy, height, can not only prevent piston in reciprocatory movement
Rotation, and the power output bigger than Normal hydraulic cylinder can be provided in the motion process that piston is retracted, piston stretches out motion
When corresponding resistance can't be had more than Normal hydraulic cylinder, hydraulic cylinder power output is improved well.
2nd, technical scheme
One kind can change rod end chamber active area and anti-piston rotating hydraulic cylinder, including cylinder cap, cylinder seat, piston, pressing plate,
Displacement transducer, sleeve, anti-rotation piston, plunger and spring, described cylinder cap are connected by connecting bolt with cylinder seat, and use second
Sealing ring is sealed；Described piston is arranged between cylinder cap and cylinder seat；Described pressing plate is fixed by four pressing plate connecting bolts
On the top of piston；The sleeve intracavitary that described sleeve is constituted located at piston with cylinder seat；Described displacement transducer is placed in sleeve
Interior, two ends are connected with piston, cylinder seat respectively；Described anti-rotation piston small end is threadedly coupled with cylinder seat, is sealed with the 5th sealing ring,
Big end is arranged in piston, is sealed with the 4th sealing ring, and the anti-rotation big end top of piston constitutes rod end chamber with piston；Described work
The through hole for setting and coordinating with plunger hole on plunger hole, pressing plate is set beyond the Great Wall, and plunger is in plunger hole, its top connecting spring, plunger
Closure is tightened with plunger bolt in hole.
As further improvement of the utility model, described anti-rotation piston is arranged with two in cylinder seat and piston.
As further improvement of the utility model, described plunger and the cavity of piston hole formation are passage, described
Passage is connected with rod end chamber, and the bottom of passage is provided with the groove coordinated with plunger.
As further improvement of the utility model, described plunger hole is symmetrical arranged two in piston.
As further improvement of the utility model, described plunger bolt and piston junction is close with the 6th sealing ring
Envelope.
As further improvement of the utility model, described cylinder cap top is provided with rod end chamber oil inlet, cylinder seat bottom
Provided with plunger shaft oil inlet.
As further improvement of the utility model, described piston is sealed with the first sealing ring, and cylinder seat is sealed with the 3rd
Circle sealing.
As further improvement of the utility model, described piston is provided with first piston ring and second piston ring.
3rd, beneficial effect
Compared to prior art, the beneficial effects of the utility model are：
One kind of the present utility model can change rod end chamber active area and anti-piston rotating hydraulic cylinder, simple in construction tight
Gather, the characteristics of being responded with high accuracy, height not only can prevent piston from being rotated in reciprocatory movement, and can be in work
Fill in and the power output bigger than Normal hydraulic cylinder is provided in the motion process retracted, piston can't compare Normal hydraulic when stretching out motion
Cylinder has more corresponding resistance, and hydraulic cylinder power output is improved well, and functional reliability is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is part A passage opening close-up schematic view in Fig. 1；
Fig. 3 is part A passage closing close-up schematic view in Fig. 1；
Fig. 4 is perspective cross-sectional schematic diagram of the present utility model.
In figure：1st, cylinder cap；2nd, cylinder seat；3rd, piston；4th, pressing plate；5th, displacement transducer；6th, sleeve；7th, anti-rotation piston；8th, press
Plate connecting bolt；9th, the first sealing ring；10th, first piston ring；11st, the second sealing ring；12nd, the 3rd sealing ring；13rd, second piston
Ring；14th, the 4th sealing ring；15th, the 5th sealing ring；16th, plunger；17th, spring；18th, plunger bolt；19th, the 6th sealing ring；20、
Passage；21st, rod end chamber oil inlet；22nd, plunger shaft oil inlet.
Embodiment
The utility model is further described below with reference to specific embodiments and the drawings：
Embodiment 1
As Figure 1-4, one kind of the present embodiment can change rod end chamber active area and anti-piston rotating hydraulic cylinder, bag
Include cylinder cap 1, cylinder seat 2, piston 3, pressing plate 4, displacement transducer 5, sleeve 6, anti-rotation piston 7, plunger 16 and spring 17, above-mentioned cylinder cap
1 is connected by connecting bolt with cylinder seat 2, and is sealed with the second sealing ring 11；Piston 3 is arranged between cylinder cap 1 and cylinder seat 2；Pressure
Plate 4 is fixed on the top of piston 3 by four pressing plate connecting bolts 8；The sleeve that above-mentioned sleeve 6 is constituted located at piston 3 with cylinder seat 2
Intracavitary, is fixed on cylinder seat 2；Displacement transducer 5 is placed in sleeve 6, and two ends 2 are connected with piston 3, cylinder seat respectively, 3, piston
Shifting signal is accurately fed back, and realizes the Close loop servo control of whole hydraulic system；The above-mentioned anti-rotation small end of piston 7 and cylinder seat 2
Threaded connection, is sealed with the 5th sealing ring 15, and big end is arranged in piston 3, is sealed with the 4th sealing ring 14, and anti-rotation piston 7 is big
Top is held to constitute rod end chamber with piston 3；The through hole for setting and coordinating with plunger hole on plunger hole, pressing plate 4, post are set on above-mentioned piston 3
Plug 16 is in plunger hole, and its top connecting spring 17, plunger hole plunger bolt 18 tightens closure.
Preferably, anti-rotation piston 7 is arranged with two in cylinder seat 2 and piston 3.
Preferably, plunger 16 and the cavity of piston hole formation are passage 20, above-mentioned passage 20 is connected with rod end chamber, is led to
The bottom in road 20 is provided with the groove coordinated with plunger 16.
Preferably, plunger hole is symmetrical arranged two in piston 3.
Preferably, plunger bolt 18 is sealed with the junction of piston 3 with the 6th sealing ring 19.
Preferably, the top of cylinder cap 1 is provided with rod end chamber oil inlet 21,2 bottoms of cylinder seat are provided with plunger shaft oil inlet 22, point
Rod end chamber that Wei be not close supplies fluid.
Preferably, piston 3 is sealed with the first sealing ring 9, cylinder seat 2 is sealed with the 3rd sealing ring 12.
Preferably, piston 3 is provided with first piston ring 10 and second piston ring 13, plays support piston and reduce friction
Effect.
In use, hydraulic cylinder makes piston 3 in the case where radial direction has heavy load by two anti-rotation pistons 7, it is being moved through
Keep radially fixed in journey, when piston 3 is moved back and forth in the presence of two cavity oil liquid, the load being connected with piston 3 is limited
It can only in the axial direction be moved, and then realize the purpose for preventing that piston from rotating.
Hydraulic cylinder can also change the active area of rod end chamber simultaneously, under load behavior, when plunger shaft enters hydraulic oil,
During rod end chamber oil return, the position closing passage 20 of plunger 16, power output is multiplied by its active area for piston cavity pressure and subtracts work
Stopper rod cavity pressure is multiplied by rod end chamber active area；When rod end chamber enters hydraulic oil, during plunger shaft oil return, the position of plunger 16 is beaten
Open walk 20, power output is that rod end chamber pressure is multiplied by its active area and subtracts piston cavity pressure and is multiplied by rod end chamber plus two
The active area of plunger 16；I.e. 3 retraction movement of piston when the phase that two areas of plunger 16 are had more than Normal hydraulic cylinder can be provided
Stress, plunger 16 is closed when piston 3 stretches out motion, and rod end chamber can't have more the corresponding resistance of two areas of plunger 16.
One kind of the present embodiment can change rod end chamber active area and anti-piston rotating hydraulic cylinder, simple and compact for structure,
The characteristics of with high accuracy, high response, not only it can prevent piston from being rotated in reciprocatory movement, and can be contracted in piston
The power output bigger than Normal hydraulic cylinder is provided in the motion process returned, piston stretches out can't be more than Normal hydraulic cylinder when moving
Go out corresponding resistance, hydraulic cylinder power output is improved well, functional reliability is high.
Schematically the utility model and embodiments thereof are described above, the description does not have restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area
Those of ordinary skill enlightened by it, do not departing from the case that the utility model creates objective, designed without creative
The frame mode similar to the technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (8)
1. one kind can change rod end chamber active area and anti-piston rotating hydraulic cylinder, it is characterised in that：Including cylinder cap (1), cylinder
Seat (2), piston (3), pressing plate (4), displacement transducer (5), sleeve (6), anti-rotation piston (7), plunger (16) and spring (17), institute
The cylinder cap (1) stated is connected by connecting bolt with cylinder seat (2), and is sealed with the second sealing ring (11)；Described piston (3) is installed
Between cylinder cap (1) and cylinder seat (2)；Described pressing plate (4) is fixed on the upper of piston (3) by four pressing plate connecting bolts (8)
Portion；The sleeve intracavitary that described sleeve (6) is constituted located at piston (3) with cylinder seat (2)；Described displacement transducer (5) is placed in set
In cylinder (6), two ends are connected with piston (3), cylinder seat (2) respectively；Described anti-rotation piston (7) small end is threadedly coupled with cylinder seat (2),
Sealed with the 5th sealing ring (15), big end is arranged in piston (3), is sealed with the 4th sealing ring (14), anti-rotation piston (7) is held greatly
Top constitutes rod end chamber with piston (3)；Set and set on plunger hole, pressing plate (4) and leading to that plunger hole coordinates on described piston (3)
Hole, plunger (16) is in plunger hole, and its top connecting spring (17), plunger hole tightens closure with plunger bolt (18).
2. one kind according to claim 1 can change rod end chamber active area and anti-piston rotating hydraulic cylinder, its feature
It is：Described anti-rotation piston (7) is arranged with two in cylinder seat (2) and piston (3).
3. one kind according to claim 1 or 2 can change rod end chamber active area and anti-piston rotating hydraulic cylinder, it is special
Levy and be：Described plunger (16) and the cavity of piston hole formation are passage (20), described passage (20) and rod end chamber company
Logical, the bottom of passage (20) is provided with the groove coordinated with plunger (16).
4. one kind according to claim 3 can change rod end chamber active area and anti-piston rotating hydraulic cylinder, its feature
It is：Described plunger hole is symmetrical arranged two in piston (3).
5. one kind according to claim 1 can change rod end chamber active area and anti-piston rotating hydraulic cylinder, its feature
It is：Described plunger bolt (18) is sealed with piston (3) junction with the 6th sealing ring (19).
6. one kind according to claim 1 can change rod end chamber active area and anti-piston rotating hydraulic cylinder, its feature
It is：Described cylinder cap (1) top is provided with rod end chamber oil inlet (21), and cylinder seat (2) bottom is provided with plunger shaft oil inlet (22).
7. one kind according to claim 1 can change rod end chamber active area and anti-piston rotating hydraulic cylinder, its feature
It is：Described piston (3) is sealed with the first sealing ring (9), and cylinder seat (2) is sealed with the 3rd sealing ring (12).
8. one kind according to claim 1 can change rod end chamber active area and anti-piston rotating hydraulic cylinder, its feature
It is：Described piston (3) is provided with first piston ring (10) and second piston ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720158128.XU CN206458663U (en) | 2017-02-22 | 2017-02-22 | One kind can change rod end chamber active area and anti-piston rotating hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720158128.XU CN206458663U (en) | 2017-02-22 | 2017-02-22 | One kind can change rod end chamber active area and anti-piston rotating hydraulic cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN206458663U true CN206458663U (en) | 2017-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720158128.XU Active CN206458663U (en) | 2017-02-22 | 2017-02-22 | One kind can change rod end chamber active area and anti-piston rotating hydraulic cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762960A (en) * | 2017-02-22 | 2017-05-31 | 中冶华天南京工程技术有限公司 | One kind can change rod end chamber active area and anti-piston rotating hydraulic cylinder |
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2017
- 2017-02-22 CN CN201720158128.XU patent/CN206458663U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762960A (en) * | 2017-02-22 | 2017-05-31 | 中冶华天南京工程技术有限公司 | One kind can change rod end chamber active area and anti-piston rotating hydraulic cylinder |
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