CN2533340Y - Automatic piston reciprocating hydraulic oil cylinder - Google Patents
Automatic piston reciprocating hydraulic oil cylinder Download PDFInfo
- Publication number
- CN2533340Y CN2533340Y CN 01274683 CN01274683U CN2533340Y CN 2533340 Y CN2533340 Y CN 2533340Y CN 01274683 CN01274683 CN 01274683 CN 01274683 U CN01274683 U CN 01274683U CN 2533340 Y CN2533340 Y CN 2533340Y
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- plunger
- cushion hole
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Abstract
The utility model relates to a piston automatic repeated hydraulic cylinder that is a hydraulic cylinder for the hydraulic motor. The utility model is characterized in that a piston of a hydraulic cylinder including a cylinder barrel, a cylinder bottom and a piston with a piston rod is completely connected with an axial piston with a diameter that is larger than the diameter of the piston; the cylinder wall against the piston is provided with a plunger cushion hole that is communicated with the inlet or outlet oil of the cylinder; controlling orifices are arranged on the cylinder on the place of adjoined plunger cushion holes and are communicated with a piston cavity through a cylinder hole access; the piston extends into the cushion hole; an cylinder oil inlet and outlet is insulated with the piston cavity, thereby achieving the automatic repeated shifting of the hydraulic cylinder piston under the control of the hydraulic cylinder through a reversing valve. The utility model has the advantages of an easy structure, stable operation, reliable work and applicability for manufacturing liquid transferring pumps of high pressure and a large flux.
Description
Technical field
The utility model relates to a kind of oil hydraulic motor hydraulic jack.
Background technique
The reciprocating reversing of the hydraulic cylinder piston of the oil hydraulic motor of the existing reciprocating type infusion pump of driven plunger all is that the external force effect by forms such as manual, the mechanical application of force, electromagnetic forces drives the action of oil circuit selector valve and realizes, can not reach gratifying usage requirement under some use occasion.For example; the high-pressure water pump by fluid motor-driven that uses is handled in desalination of sea water; not only require water delivery pressure height, flow big, but also require water delivery pressure, stability of flow, fluctuation little, make the desalination of sea water job run stable and realize the industrialization and the scale of desalination of sea water.And the hydraulic cylinder piston of the existing actual water pump oil hydraulic motor that uses is because can not automatic reverse; water pump water delivery pressure flows big, and the operation that handle to desalination of sea water in the defeated hole that is difficult to realize big flow and industrialization, the scale of desalination of sea water bring totally unfavorable influence.
Summary of the invention
The purpose of this utility model provides and a kind ofly is suitable for that oil hydraulic motor uses, and the commutation of hydraulic cylinder piston is controlled the piston automatic reciprocating type hydraulic jack that the selector valve action realizes automatically by hydraulic jack.
The purpose of this utility model realizes by following design.
By cylinder barrel with the cylinder head of the band inlet (outlet) of cylinder barrel two-port sealing, cylinder body that cylinder bottom constitutes be loaded on the whole axial plunger of diameter that be connected with on the piston of the hydraulic jack that the piston that has piston rod in the cylinder piston chamber constitutes greater than diameter of piston rod, the plunger cushion hole that is communicated with the cylinder body inlet (outlet) is arranged on the cylinder body wall relative with plunger, and piston stretches into cushion hole inner cylinder body inlet (outlet) and piston cavity is isolated mutually.There is the control mouth that can be connected with the selector valve control mouth of piston control device for reversing at the contiguous plunger cushion hole of cylinder body place, and the control mouth is communicated with piston cavity by the duct in the cylinder body.
In order to adapt to and the usage requirement of satisfying different use occasions, a kind of structural type of piston automatic reciprocating type hydraulic jack is, hydraulic cylinder piston has a whole piston rod that connects, the piston rod free end is stretched out outside the cylinder body by cylinder head, piston has the axial plunger of the whole diameter that connects greater than diameter of piston rod on cylinder bottom one side piston wall, the plunger cushion hole and the control mouth that are communicated with the cylinder bottom inlet (outlet) are arranged on the cylinder bottom, and the control mouth is communicated with piston cavity by the duct in the cylinder bottom.
Second kind of structural type of piston automatic reciprocating type hydraulic jack is, have the piston rod of a whole connection by cylinder barrel and the piston that has the hydraulic jack that the whole piston that is connected piston rod constitutes with the cylinder head that has inlet (outlet) of cylinder barrel two-port sealing, cylinder body that cylinder bottom constitutes and in being loaded on the cylinder piston chamber, the piston rod free end is stretched out outside the cylinder body by cylinder head.The whole respectively diameter that is connected with is greater than having plunger cushion hole that is communicated with cylinder head, cylinder bottom inlet (outlet) and the control mouth that can be connected with piston control device for reversing selector valve control mouth on the axial plunger of diameter of piston rod, cylinder head, the cylinder bottom on the wall of cylinder head, cylinder bottom for piston, and two control mouth is communicated with piston cavity by the duct in cylinder head and the cylinder bottom respectively.Piston rod is connected by plunger and piston are whole.
The third structural type of piston automatic reciprocating type hydraulic jack is, by cylinder barrel with the cylinder head that has inlet (outlet) of cylinder barrel two-port sealing, cylinder body that cylinder bottom constitutes and the piston of the hydraulic jack that constitutes by the piston that has the whole piston rod that is connected in being loaded on the cylinder piston chamber two piston rods are arranged, two-piston bar free end is stretched out outside the cylinder body by cylinder head and cylinder bottom respectively.Piston is the whole respectively plunger of diameter greater than diameter of piston rod that be connected with on the wall of cylinder head and cylinder bottom, plunger cushion hole that is communicated with inlet (outlet) and the control mouth that can be connected with piston control device for reversing selector valve control mouth are arranged on cylinder head, the cylinder bottom, and two control mouths are communicated with piston cavity by the duct in cylinder head and the cylinder bottom respectively.The two-piston bar is connected by plunger and piston are whole respectively.
The plunger of piston automatic reciprocating type hydraulic jack cooperate with the plunger cushion hole with hydraulic jack cylinder body inlet (outlet) and cylinder piston chamber mutually every a kind of structural type be, plunger stretch into cushion hole piston side peripheral wall surfaces and cushion hole wall surface of the hole be sealed sliding movingly.Cylinder body inlet (outlet) and cylinder piston chamber is isolated mutually.
Plunger cooperates with the plunger cushion hole, setting-in annular seal ring on the plunger, plunger stretch into the cushion hole inner plunger and the cushion hole wall surface of the hole passes through the seal ring sealed sliding movingly.Cylinder body inlet (outlet) and cylinder piston chamber is isolated mutually.
Plunger cooperates with the plunger cushion hole, be set with the seal ring that has damping spring that is slidingly matched with the plunger wall face seal on the plunger, it is isolated mutually with cylinder body inlet (outlet) and piston cavity with the sealing of cushion hole aperture under the damping spring thrusting action that plunger stretches into the cushion hole inner seal ring.
When piston automatic reciprocating type hydraulic jack uses, oil cylinder control mouth connects with the control mouth of the selector valve of piston control device for reversing by pipeline, piston is in the displacement of oil-feed oil pressure effect lower slider during oil cylinder work operation, when the plunger of piston stretches in the cushion hole oil cylinder oil outlet end hydraulic fluid port and the fuel-displaced side piston cavity of the isolated piston of piston cavity are formed Seal cage, oil boosts to make piston both sides generation pressure reduction and then be delivered to selector valve control mouth by the control oral instructions under the piston extruding and makes the selector valve action in the chamber, the oil cylinder oil inlet end becomes the oil outlet end oil outlet end and becomes oil inlet end, the piston reverses direction slippage.So move in circles, piston is automatic reciprocating operation under the control of oil cylinder self.
Stable, the reliable operation of piston automatic reciprocating type hydraulic jack, the high pressure pump infusion pressure height of making, flow are big, and infusion pressure, flowed fluctuation are little.Simple in structure, easy operating control.
Description of drawings
Fig. 1 is a twin-tub single action piston automatic reciprocating type hydraulic jack structural drawing.
Fig. 2 is a twin-tub single action piston automatic reciprocating type hydraulic jack shown in Figure 1 assembly structure schematic representation when using.
Fig. 3 is a single-cylinder single-acting piston automatic reciprocating type hydraulic jack structural drawing.
Fig. 4 is a single-cylinder dual-action piston automatic reciprocating type hydraulic jack structural drawing.
Fig. 5 is embedded with the partial structurtes figure of the piston automatic reciprocating type hydraulic jack of annular seal ring for plunger.
Fig. 6 is equipped with the partial structurtes figure of the piston automatic reciprocating type hydraulic jack of the seal ring of being with damping spring for plunger bushing.
Mode of execution
Be mode of execution of the present utility model shown in the accompanying drawing, but the utility model is not limited only to mode of execution shown in the drawings, below in conjunction with description of drawings mode of execution of the present utility model.
A kind of mode of execution of the present utility model is that piston automatic reciprocating type hydraulic jack is made twin-tub single-acting formula hydraulic jack.Twin-tub single action piston automatic reciprocating type hydraulic jack, as shown in Figure 1, by cylinder barrel (3), be fastened on cylinder barrel two-port place and by seal ring (8, (2)) sealing joint had piston rod via hole and the cylinder head that is connected hydraulic fluid port (13) (9), the piston rod free end of hydraulic jack that is embedded with piston (6) formation of the piston rod (7) that seal ring (5) and integral body is connected in having the cylinder body that the cylinder bottom (1) of inlet (outlet) (17) and control mouthful (14) constitutes and being loaded on the cylinder piston chamber is stretched out outside the oil cylinder by cylinder head, between piston rod and cylinder head by seal ring (10), (11), (12) sealing.Piston is the whole axial plunger (4) of diameter greater than diameter of piston rod that be connected with on the cylinder bottom one side piston wall, cylinder bottom has the plunger cushion hole (16) that is communicated with inlet (outlet), and plunger stretches into cushion hole inner plunger side peripheral wall surfaces and cushion hole wall surface of the hole sealed sliding is isolated mutually with inlet (outlet) and oil cylinder piston chamber movingly.A control mouthful duct (15) of passing through in the cylinder bottom is communicated with the oil cylinder piston chamber.Equipment assembling and connecting as shown in Figure 2 during use, twin-tub uses side by side simultaneously, the piston control device for reversing is made of hand-operated direction valve (22), leading type pilot operated directional control valve (20), oil cylinder by fuel tank (24), have high pressure oil pump (23) the fuel feeding operation of bypass relief valve (21).The connection hydraulic fluid port of two oil cylinders interconnects, and inlet (outlet) is connected with two hydraulic fluid ports of pilot change over valve respectively, and leading type hydraulic control system selector valve two hydraulic fluid ports in addition is connected with hand-operated direction valve two hydraulic fluid ports.Two oil cylinders are controlled mouth and are connected with two control mouths of leading type pilot operated directional control valve respectively, one-way valve (18), (19) are housed to prevent the malfunction of leading type pilot operated directional control valve between the inlet (outlet) of two oil cylinders and control mouth.
The hydraulic oil of oil pump output is entered by the inlet (outlet) of an oil cylinder through hand-operated direction valve, leading type pilot operated directional control valve that another oil cylinder inlet (outlet) is an oil outlet in the hydraulic jack during operation, and hydraulic oil flows back to fuel tank by leading type pilot operated directional control valve, hand-operated direction valve in the oil cylinder.Hydraulic oil flows into the hydraulic oil of another oil cylinder in another hydraulic jack outside piston is pushed down by inlet (outlet) outflow cylinder by connecting hydraulic fluid port in the oil-feed oil cylinder piston moves piston opposite side piston cavity under hydraulic oil is pushed.In the plunger on the piston of oil extraction hydraulic jack stretches into plunger cushion hole on the cylinder bottom with inlet (outlet) and piston cavity when isolated mutually, piston forms Seal cage towards cylinder bottom one side piston cavity, since in the Seal cage hydraulic oil piston squeeze push can't discharge and the Seal cage annular cross-sectional area less than piston opposite side piston cavity annular cross-sectional area, thereby between two oil cylinders control mouthful, produce pressure reduction and be delivered to the leading type pilot operated directional control valve and make its rotary movement by the control oral instructions.Change oil circuit into and out of oily direction, oil-feed hydraulic fluid port originally becomes oil outlet, oil outlet originally becomes filler opening.So move in circles, two hydraulic cylinder pistons under oil cylinder self control, automatic reciprocating motion, two oil cylinders carry out complementary operation.
Second kind of mode of execution of piston automatic reciprocating type hydraulic jack is for to make single-cylinder single-acting formula hydraulic jack with piston automatic reciprocating type hydraulic jack.
Single-cylinder single-acting piston automatic reciprocating type hydraulic jack as shown in Figure 3, by cylinder barrel (27), be fastened on cylinder barrel two-port place by seal ring (33), (26) sealing joint had an inlet (outlet) (38), the cylinder head (34) of control mouthful (39) and piston rod via hole, have inlet (outlet) (45), the cylinder body that the cylinder bottom (25) of control mouthful (42) constitutes and be loaded on the cylinder piston chamber in be embedded with the piston rod free end of hydraulic jack that seal ring (29) and integral body is connected piston (30) formation of piston rod (32) and stretch out outside the oil cylinder by cylinder head, between piston rod and cylinder head by seal ring (35), (36), (37) sealing, piston is the whole axial plunger (31) of diameter greater than diameter of piston rod that be connected with on cylinder head and the cylinder bottom two side walls, (28), cylinder head, the plunger cushion hole (41) that is communicated with inlet (outlet) is arranged on the cylinder bottom, (44), plunger stretches into cushion hole inner plunger side peripheral wall surfaces and cushion hole wall surface of the hole sealed sliding is isolated mutually with inlet (outlet) and oil cylinder piston chamber movingly, and oil cylinder two control mouths are communicated with piston cavity by duct (40) in the cylinder head and the duct (43) in the cylinder bottom respectively.Piston rod is connected by plunger and piston are whole.The assembling of equipment during use is identical with mode of execution one, just with two controls of hydraulic jack mouthful respectively with two control connections of the leading type pilot operated directional control valve of piston control device for reversing.
The third mode of execution of piston automatic reciprocating type hydraulic jack is that piston automatic reciprocating type hydraulic jack is made single-cylinder dual-action formula hydraulic jack.Single-cylinder dual-action piston automatic reciprocating type hydraulic jack as shown in Figure 4, by cylinder barrel (52), be fastened on cylinder barrel two-port place by seal ring (57), (51) sealing joint had an oil inlet and outlet (63), the cylinder head (58) of control mouthful (64) and piston rod via hole, have control mouthful (68), the cylinder body that the cylinder bottom (50) of inlet (outlet) (69) and piston rod via hole constitutes and be loaded on being embedded with seal ring (54) and having piston rod (62) in the cylinder piston chamber, the two-piston bar free end of the hydraulic jack that piston (46) (55) constitutes is respectively by cylinder head, cylinder bottom stretches out outside the oil cylinder, between two-piston bar and cylinder head cylinder bottom by seal ring (59), (60), (61), (47), (48), (49) sealing.Piston is towards whole respectively axial plunger (56), (53) of diameter greater than diameter of piston rod that are connected with of cylinder head, cylinder bottom two side walls, plunger cushion hole (66), (70) are arranged on cylinder head and the cylinder bottom, and plunger stretches into cushion hole inner plunger side peripheral wall surfaces and cushion hole hole wall sealed sliding is isolated mutually with inlet (outlet) and oil cylinder piston chamber movingly.Two control mouths are communicated with oil cylinder piston by duct (65) in the cylinder head and the duct (67) in the cylinder bottom respectively, and the two-piston bar is connected by plunger and piston are whole respectively.During use the assembling of equipment be connected identical with mode of execution two.
The plunger of piston automatic reciprocating type hydraulic jack and plunger cushion hole cooperating structure pattern also can adopt Fig. 5, structural type shown in Figure 6 that oil cylinder inlet (outlet) and piston cavity are completely cut off mutually except that the structural type that mode of execution 1-3 provides.As shown in Figure 5, integral body is connected on the plunger (72) on the piston (73) and is embedded with seal ring (71), and it is isolated mutually with inlet (outlet) (75) and piston cavity movingly by seal ring and cushion hole wall surface of the hole sealed sliding that plunger stretches into cushion hole (74) inner plunger.As shown in Figure 6, plunger (78) free end that integral body is connected on the piston (79) has guide pad made in one piece (76), the seal ring that has damping spring (80) (77) that is embedded with seal ring (81) is sleeved on the plunger, seal ring and plunger pass through seal ring (81) sealed sliding movingly, and plunger stretches into plunger cushion hole (83) inner seal ring makes oil cylinder inlet (outlet) (84) and piston cavity isolated mutually the sealing of plunger cushion hole aperture by the seal ring (82) that is inlaid on the seal ring seal capping under the damping spring effect.
Claims (7)
1, a kind of piston automatic reciprocating type hydraulic jack, by cylinder barrel with the cylinder head that has inlet (outlet) of cylinder barrel two-port sealing, the cylinder body that cylinder bottom constitutes and be loaded on the piston that has piston rod in the cylinder piston chamber and constitute, it is characterized in that the whole axial plunger of diameter that be connected with on the piston greater than diameter of piston rod, the plunger cushion hole that is communicated with the cylinder body inlet (outlet) is arranged on the cylinder body wall relative with plunger, plunger stretches into cushion hole inner cylinder body inlet (outlet) and piston cavity is isolated mutually, there is the control mouth that can be connected with the selector valve control mouth of piston control device for reversing at the contiguous plunger cushion hole of cylinder body place, and the control mouth is communicated with piston cavity by the duct in the cylinder body.
2, by the described piston automatic reciprocating type of claim 1 hydraulic jack, it is characterized in that said hydraulic cylinder piston has a whole piston rod that connects, the piston rod free end is stretched out outside the cylinder body by cylinder head, piston has the axial plunger of the whole diameter that connects greater than diameter of piston rod on cylinder bottom one side piston wall, have with cylinder bottom plunger cushion hole and control mouth that (going out) oil is communicated with on the cylinder bottom, a control mouthful duct of passing through in the cylinder bottom is communicated with piston cavity.
3, by the described piston automatic reciprocating type of claim 1 hydraulic jack, it is characterized in that said hydraulic cylinder piston has a whole piston rod that connects, the piston rod free end is stretched out outside the cylinder block body by cylinder head, piston is towards cylinder head, the whole respectively plunger of diameter that be connected with on the wall of cylinder bottom greater than diameter of piston rod, cylinder head, have on the cylinder bottom and cylinder head, cylinder bottom advances (going out) mouthful plunger cushion hole that oil is communicated with and the control mouth that can be connected with the selector valve control mouth of piston control device for reversing, two control mouths pass through cylinder head respectively, duct in the cylinder bottom is communicated with piston cavity, and piston rod is connected by plunger and piston are whole.
4, by the described piston automatic reciprocating type of claim 1 hydraulic jack, it is characterized in that said hydraulic cylinder piston has two piston rods, two piston rod free ends are stretched out outside the cylinder body by cylinder head and cylinder bottom respectively, piston is the whole respectively plunger of diameter greater than diameter of piston rod that be connected with on the wall of cylinder head and cylinder bottom, cylinder head, plunger cushion hole that is communicated with inlet (outlet) and the control mouth that can be connected with piston control device for reversing selector valve control mouth are arranged on the cylinder bottom, the control mouth passes through cylinder head, duct in the cylinder bottom is communicated with piston cavity, and the two-piston bar is connected by plunger and piston are whole respectively.
5, by the described piston automatic reciprocating type of claim 1 hydraulic jack, it is characterized in that said plunger stretch into plunger cushion hole inner plunger side peripheral wall surfaces and cushion hole wall surface of the hole be sealed sliding movingly.
6, by the described piston automatic reciprocating type of claim 1 hydraulic jack, it is characterized in that being embedded with annular seal ring on the said plunger, plunger stretches into the cushion hole inner plunger and the cushion hole wall surface of the hole passes through the seal ring sealed sliding movingly.
7, by the described piston automatic reciprocating type of claim 1 hydraulic jack, it is characterized in that being set with on the said plunger seal ring that has damping spring that is slidingly matched with the plunger wall face seal, plunger stretches into the cushion hole inner seal ring and under the damping spring thrusting action cushion hole aperture is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274683 CN2533340Y (en) | 2001-12-27 | 2001-12-27 | Automatic piston reciprocating hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01274683 CN2533340Y (en) | 2001-12-27 | 2001-12-27 | Automatic piston reciprocating hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2533340Y true CN2533340Y (en) | 2003-01-29 |
Family
ID=33679262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01274683 Expired - Fee Related CN2533340Y (en) | 2001-12-27 | 2001-12-27 | Automatic piston reciprocating hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2533340Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464081C (en) * | 2007-06-26 | 2009-02-25 | 中国地质大学（武汉） | Automatically-reciprocating hydraulic cylinder |
| CN101664739A (en) * | 2008-09-03 | 2010-03-10 | 克罗内斯股份公司 | Device and piston for segregating articles |
| CN104016239A (en) * | 2014-05-29 | 2014-09-03 | 鞍钢集团矿业公司 | Barrier buffering apparatus for bridge crane |
| CN105673613A (en) * | 2016-02-26 | 2016-06-15 | 杨艳 | Mechanical automatic reversing hydraulic motor |
| CN106704288A (en) * | 2015-07-14 | 2017-05-24 | 徐工集团工程机械股份有限公司 | Hydraulic cylinder buffering structure and engineering machine with hydraulic cylinder buffering structure |
| CN114370442A (en) * | 2021-12-28 | 2022-04-19 | 荆门美中美阀门有限公司 | Double-piston oil cylinder |
-
2001
- 2001-12-27 CN CN 01274683 patent/CN2533340Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100464081C (en) * | 2007-06-26 | 2009-02-25 | 中国地质大学（武汉） | Automatically-reciprocating hydraulic cylinder |
| CN101664739A (en) * | 2008-09-03 | 2010-03-10 | 克罗内斯股份公司 | Device and piston for segregating articles |
| CN104016239A (en) * | 2014-05-29 | 2014-09-03 | 鞍钢集团矿业公司 | Barrier buffering apparatus for bridge crane |
| CN104016239B (en) * | 2014-05-29 | 2015-12-23 | 鞍钢集团矿业公司 | Traverse crane stops shock absorber |
| CN106704288A (en) * | 2015-07-14 | 2017-05-24 | 徐工集团工程机械股份有限公司 | Hydraulic cylinder buffering structure and engineering machine with hydraulic cylinder buffering structure |
| CN106704288B (en) * | 2015-07-14 | 2018-09-04 | 徐工集团工程机械股份有限公司 | Hydraulic cylinder and engineering machinery with the hydraulic cylinder |
| CN105673613A (en) * | 2016-02-26 | 2016-06-15 | 杨艳 | Mechanical automatic reversing hydraulic motor |
| CN114370442A (en) * | 2021-12-28 | 2022-04-19 | 荆门美中美阀门有限公司 | Double-piston oil cylinder |
| CN114370442B (en) * | 2021-12-28 | 2024-04-26 | 荆门美中美阀门有限公司 | Double-piston oil cylinder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Shuqi Document name: Notification of Termination of Patent Right |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |