CN103307055A - Horizontal plunger piston oil cylinder - Google Patents
Horizontal plunger piston oil cylinder Download PDFInfo
- Publication number
- CN103307055A CN103307055A CN2013102572212A CN201310257221A CN103307055A CN 103307055 A CN103307055 A CN 103307055A CN 2013102572212 A CN2013102572212 A CN 2013102572212A CN 201310257221 A CN201310257221 A CN 201310257221A CN 103307055 A CN103307055 A CN 103307055A
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- plunger
- cylinder
- guide sleeve
- plunger piston
- inner hole
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Abstract
The invention discloses a horizontal plunger piston oil cylinder, which comprises a cylinder barrel, a cylinder cover, a plunger piston, a plurality of cylinder cover seal rings, a plunger piston seal ring, a front guide sleeve, a rear guide sleeve and guiding rings, wherein the plunger piston seal ring is arranged between the rear end of the cylinder cover and the front guide sleeve; one end of the plunger piston sequentially penetrates the cylinder cover, the plurality of cylinder cover seal rings, the plunger piston seal ring and the front guide sleeve to be inserted into an inner hole of the cylinder barrel; the rear guide sleeve is fixed at the rear end of the plunger piston; a plurality of oil holes are formed in the rear end of the plunger piston. According to the invention, the plunger piston moves, but does not swing, which greatly improves the plunger piston operation precision. A hydraulic oil in a back cavity enters into a ring-shaped gap between the major diameter of the plunger piston and the inner hole of the cylinder barrel through the plurality of oil holes, so as to better lubricate the plurality of cylinder cover seal rings, the plunger piston seal ring, the front guide sleeve and the plurality of guiding rings, as a result, the service life of seal elements and guiding elements is greatly prolonged, the maintenance cost is reduced, and the work efficiency is improved.
Description
Technical field
The present invention relates to a kind of plunger cylinder, especially a kind of plunger cylinder for the loading of heavy horizontal hydraulic machine belongs to the hydraulic actuator technical field.
Background technique
The chain link forming process of marine anchor chain or mooring anchor chain is as follows: the sub-elliptical ring body that the bar after will heating becomes two ends not connect through special-purpose ring bending machine horizontal curvature, then with flash welder aforesaid sub-elliptical ring body is welded into the ring body of a sealing, remove the welding burr through deburring machine again, then ring body one side being vertically located in horizontal hydraulic presses in the fixed die of shelves machine, again crosspiece is sent in the ring body, being arranged on hydraulic pressure presses the horizontal plunger cylinder plunger in the shelves machine opposite side to move horizontally towards the fixed die direction, promotion is laterally pushed ring body by the movable mold that template is fixed on the plunger, ring body is squeezed into oval ring body, the ring body inboard is firmly compressed at the crosspiece two ends that be positioned in the middle of the ring body this moment, thereby finishes the shaping operation of a chain link.Because the ring body diameter of large specification cable link has reached more than the φ 170mm, the required extruding force of ring body generation plastic deformation reaches 8 ~ 10MN when pressing crosspiece, and the movable mold working stroke also need reach more than the 700mm.In order to reach aforementioned purpose, press the supporting horizontal plunger cylinder of shelves machine must have the characteristics such as large cylinder diameter, long stroke with hydraulic pressure.
In the cylinder barrel of the horizontal plunger cylinder that existing hydraulic pressure pressure shelves machine is supporting a guide sleeve only is set, plunger back-end is in and the contactless free state of inner hole of cylinder.Because when ring body presses shelves to be shaped, the loading center of horizontal plunger cylinder and ring body produce the pressure center of lateral deformation not on the same straight line, the guiding length that adds upper plug is shorter, under the effect of eccentric force, when moving, plunger easily swings, and cause the guide sleeve wearing and tearing larger, and plunger sealing washer and several cylinder cap ring wears are strengthened, have a strong impact on the working life of seal element, strengthened maintenance cost, affect working efficiency.
Summary of the invention
The purpose of this invention is to provide a kind of plunger back-end and be bearing in horizontal plunger cylinder in the cylinder body by rear guide sleeve, prolong the working life of seal element, increase work efficiency.
The present invention is achieved by the following technical programs:
A kind of horizontal plunger cylinder, comprise cylinder barrel, cylinder cap, plunger, several cylinder cap seal rings, plunger sealing washer, front guide sleeve and rear guide sleeve, described cylinder barrel back-end closure, described cylinder cap is fixed on the cylinder barrel front end by a plurality of fastening pieces, several cylinder cap seal rings are disposed between cylinder cap and the inner hole of cylinder front end, described front guide sleeve outer circumferential face radially is fixedly connected with inner hole of cylinder, plunger sealing washer is arranged between cylinder cap rear end and the front guide sleeve, plunger one end passes cylinder cap successively, several cylinder cap seal rings, behind plunger sealing washer and the front guide sleeve, inject in the inner hole of cylinder; Plunger back-end outer circumferential face and rear guide sleeve internal orifice dimension be to being fixedly connected with, rear guide sleeve by flange shaft to being positioned on the plunger back-end; The outer circumferential face of described plunger and front guide sleeve endoporus Spielpassung, rear guide sleeve outer circumferential face and the inner hole of cylinder Spielpassung of plunger back-end.
Purpose of the present invention can also further realize by following technical measures.
Aforesaid horizontal plunger cylinder, wherein said plunger are the hollow body structure of closed at both ends, leave annular space between the plunger outer diameter of rear guide sleeve front end and inner hole of cylinder; Radially equally distributed several oilholes are arranged on plunger back-end.Described oilhole comprises upright opening and the horizontal hole that intersects vertically, and described upright opening communicates with the plunger outer circumferential face, and described horizontal hole communicates with the plunger back-end face.
Aforesaid horizontal plunger cylinder, wherein said inner hole of cylinder cover interval is provided with several guide collar, plunger outer diameter and guide collar endoporus Spielpassung.
The present invention has set up several guide collar in cylinder cap, several oilholes of rear guide sleeve and the horizontal plunger cylinder back cavity of connection and front guide sleeve have been set up at plunger back-end, so that plunger back-end is bearing on the inner hole of cylinder, the guiding length of plunger guide sleeve length in the existing cylinder barrel extends to from cylinder cap and begins until plunger back-end, short-range missile is to for existing plunger case 2.55 times of length, and the longest guiding length is 5.85 times of existing plunger case.Plunger back-end is subject to the constraint of inner hole of cylinder, and the eccentric force when ring body presses shelves to be shaped is by rear guide sleeve balance, and plunger can not swing, and has greatly improved the running precision of plunger.The present invention has set up several oilholes that are communicated with horizontal plunger cylinder back cavity and front guide sleeve at plunger back-end, during plunger advancement, the hydraulic oil of horizontal plunger cylinder back cavity enters annular space between plunger outer diameter and the inner hole of cylinder by several oilholes, so that several cylinder cap seal rings, several guide collar, plunger sealing washer and the front guide sleeve of front portion of the present invention all obtain good lubricating, greatly prolonged the working life of seal element and director element, reduce maintenance cost, improved working efficiency.
Advantage and disadvantage of the present invention will be for illustration and explanation by the non-limitative illustration of following preferred embodiment, and these embodiments only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is whole-cutaway view of the present invention.
Embodiment
Pressing the supporting horizontal plunger cylinder of shelves machine below in conjunction with accompanying drawing and 10MN hydraulic pressure is that the invention will be further described for embodiment.
As shown in Figure 1, the present invention includes and comprise cylinder barrel 1, cylinder cap 2, plunger 3,2 cylinder cap seal rings 4, plunger sealing washer 5, front guide sleeve 6 and rear guide sleeves 7, cylinder barrel 1 is the forging of back-end closure, inner hole of cylinder 11 adopts the higher honing processing of precision, during plunger 3 operation, rear guide sleeve 7 and inner hole of cylinder 11 no-floats have improved the running precision of plunger 3.Cylinder cap 2 is fixed on cylinder barrel 1 front end by a plurality of fastening screw trip bolts 10,2 cylinder cap seal rings 4 are disposed on cylinder cap 2 to the right between extended cylinder cap seam 21 and the inner hole of cylinder 11, and 2 cylinder cap seal rings 4 of the present embodiment all adopt preferably O RunddichtringO of static seal effect.Front guide sleeve 6 outer circumferential faces radially are fixedly connected with by interference fit with inner hole of cylinder 11, plunger sealing washer 5 is arranged between cylinder cap seam 21 rear ends and the front guide sleeve 6, the V-shaped seal ring that the plunger sealing washer 5 of the present embodiment adopts a plurality of v shaped rings to combine, when the present invention moves under high pressure conditions, good sealing effect is opened on V-shaped seal ring lip limit.After plunger 3 right-hand members pass cylinder cap 2,2 cylinder cap seal rings 4, plunger sealing washer 5 and front guide sleeves 6 successively, inject in the inner hole of cylinder 11; The outer circumferential face of plunger 3 radially is fixedly connected with by interference fit with the endoporus of rear guide sleeve 7, and flange 8 axially locating are passed through on plunger 3 rear ends in rear guide sleeve 7 rear ends.The endoporus Spielpassung of plunger 3 outer circumferential faces and front guide sleeve 6, rear guide sleeve 7 outer circumferential faces of plunger 3 rear ends and inner hole of cylinder 11 Spielpassung.
Inner hole of cylinder cover 21 intervals are provided with 2 guide collar 9, plunger 3 external diameters and guide collar 9 endoporus Spielpassung.Guide collar 9 is formed around 21 1 weeks of inner hole of cylinder cover with guidance tape by axle, the two ends open-ended.
Plunger 3 is the hollow body structure of closed at both ends, can alleviate the weight of plunger 3, reduces 3 pairs of cylinder barrels 1 of plunger of horizontal supporting, the pressure of leading cylinder cap seal ring 4, plunger sealing washer 5, front guide sleeve 6 and guide collar 9, prolongs the working life of aforementioned part.The plunger 3 of the present embodiment adopts by the integrally welded hollow-core construction of front plug 31, rear plug 32 and plunger cylindrical shell 33.Leave annular space 12 between plunger 3 external diameters of rear guide sleeve 7 front ends and inner hole of cylinder 11, radially equally distributed 4 oilholes 34 are arranged on plunger 3 rear ends.Oilhole 34 comprises upright opening 341 and the horizontal hole 342 that intersects vertically, upright opening 341 communicates with plunger 3 outer circumferential faces, horizontal hole 342 communicates with plunger 3 ear end faces, when plunger 3 advances, the hydraulic oil of back cavity of the present invention enters in the annular space 12 by 4 oilholes 34, so that 2 seal rings 4 of cylinder cap, 2 guide collar 9, plunger sealing washer 5 and front guide sleeves 6 all obtain is good lubricated.
The present invention also can be used for the horizontal hydraulic machine of large-scale metal plate moulding moulding, or large-size horizontal Die casting machine and Powder metallurgic forming machines etc. needs the hydraulic press of level loading except the horizontal hydraulic that is used for the anchor chain manufacturing is pressed the shelves machine.
In addition to the implementation, the present invention can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (4)
1. horizontal plunger cylinder, comprise cylinder barrel, cylinder cap, plunger, several cylinder cap seal rings, plunger sealing washer and front guide sleeve, described cylinder barrel back-end closure, described cylinder cap is fixed on the cylinder barrel front end by a plurality of fastening pieces, several cylinder cap seal rings are disposed between cylinder cap and the inner hole of cylinder front end, described front guide sleeve outer circumferential face radially is fixedly connected with inner hole of cylinder, plunger sealing washer is arranged between cylinder cap rear end and the front guide sleeve, after plunger one end passes cylinder cap, several cylinder cap seal rings, plunger sealing washer and front guide sleeve successively, inject in the inner hole of cylinder; It is characterized in that: also comprise rear guide sleeve, plunger back-end outer circumferential face and rear guide sleeve internal orifice dimension be to being fixedly connected with, rear guide sleeve by flange shaft to being positioned on the plunger back-end; The outer circumferential face of described plunger and front guide sleeve endoporus Spielpassung, rear guide sleeve outer circumferential face and the inner hole of cylinder Spielpassung of plunger back-end.
2. horizontal plunger cylinder as claimed in claim 1, it is characterized in that: described plunger is the hollow body structure of closed at both ends, leaves annular space between the plunger outer diameter of rear guide sleeve front end and inner hole of cylinder; Radially equally distributed several oilholes are arranged on plunger back-end.
3. horizontal plunger cylinder as claimed in claim 2, it is characterized in that: described oilhole comprises upright opening and the horizontal hole that intersects vertically, and described upright opening communicates with the plunger outer circumferential face, and described horizontal hole communicates with the plunger back-end face.
4. horizontal plunger cylinder as claimed in claim 1, it is characterized in that: described inner hole of cylinder cover interval is provided with several guide collar, plunger outer diameter and guide collar endoporus Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102572212A CN103307055A (en) | 2013-06-26 | 2013-06-26 | Horizontal plunger piston oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102572212A CN103307055A (en) | 2013-06-26 | 2013-06-26 | Horizontal plunger piston oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103307055A true CN103307055A (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102572212A Pending CN103307055A (en) | 2013-06-26 | 2013-06-26 | Horizontal plunger piston oil cylinder |
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| Country | Link |
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| CN (1) | CN103307055A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224325A (en) * | 2016-08-25 | 2016-12-14 | 北汽福田汽车股份有限公司 | Plunger case, pumping system pendulum valve system and concrete pumping equipment |
| CN106286460A (en) * | 2015-05-29 | 2017-01-04 | 湖北省咸宁三合机电制业有限责任公司 | A kind of ram cylinder |
| CN107269620A (en) * | 2017-06-12 | 2017-10-20 | 南通爱慕希机械股份有限公司 | A kind of ram cylinder |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4770085A (en) * | 1981-11-19 | 1988-09-13 | Spetsialnoe Konstruktorskotekhnologicheskoe Bjuro Glavmosinzhstroja Pri Mosgorispolkome | Hydraulic jack |
| CN1097845A (en) * | 1993-07-20 | 1995-01-25 | 王华业 | Hollow plunger hydraulic cylinder |
| CN101092981A (en) * | 2007-07-25 | 2007-12-26 | 天津市天锻压力机有限公司 | Anti partial loading oil cylinder in use for large size hydraulic machine |
| CN101457751A (en) * | 2008-12-18 | 2009-06-17 | 浙江工业大学 | Hollow plunger assembly for plunger pump |
| CN203362686U (en) * | 2013-06-26 | 2013-12-25 | 亚星（镇江）系泊链有限公司 | Horizontal plunger cylinder |
-
2013
- 2013-06-26 CN CN2013102572212A patent/CN103307055A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4770085A (en) * | 1981-11-19 | 1988-09-13 | Spetsialnoe Konstruktorskotekhnologicheskoe Bjuro Glavmosinzhstroja Pri Mosgorispolkome | Hydraulic jack |
| CN1097845A (en) * | 1993-07-20 | 1995-01-25 | 王华业 | Hollow plunger hydraulic cylinder |
| CN101092981A (en) * | 2007-07-25 | 2007-12-26 | 天津市天锻压力机有限公司 | Anti partial loading oil cylinder in use for large size hydraulic machine |
| CN101457751A (en) * | 2008-12-18 | 2009-06-17 | 浙江工业大学 | Hollow plunger assembly for plunger pump |
| CN203362686U (en) * | 2013-06-26 | 2013-12-25 | 亚星（镇江）系泊链有限公司 | Horizontal plunger cylinder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286460A (en) * | 2015-05-29 | 2017-01-04 | 湖北省咸宁三合机电制业有限责任公司 | A kind of ram cylinder |
| CN106224325A (en) * | 2016-08-25 | 2016-12-14 | 北汽福田汽车股份有限公司 | Plunger case, pumping system pendulum valve system and concrete pumping equipment |
| CN107269620A (en) * | 2017-06-12 | 2017-10-20 | 南通爱慕希机械股份有限公司 | A kind of ram cylinder |
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Application publication date: 20130918 |