CN102094871A - Novel connecting body of hydraulic cylinder - Google Patents
Novel connecting body of hydraulic cylinder Download PDFInfo
- Publication number
- CN102094871A CN102094871A CN2009102424587A CN200910242458A CN102094871A CN 102094871 A CN102094871 A CN 102094871A CN 2009102424587 A CN2009102424587 A CN 2009102424587A CN 200910242458 A CN200910242458 A CN 200910242458A CN 102094871 A CN102094871 A CN 102094871A
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- link
- fluid power
- connecting body
- sealing
- seal
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Abstract
The invention belongs to the technical field of petroleum extraction equipment and particularly relates to a seal body of a hydraulic cylinder of an automatic pressure regulating device for injecting water into an oil well. A novel connecting body of a hydraulic cylinder comprises a connecting element, wherein both ends of the connecting elements are fixedly connected with a barrel of the hydraulic cylinder; a seal element is arranged in the connecting element; threads on the excircle surface of the seal element are connected with threads on the inner surface of the connecting element; the excircle surface of the seal element is centered and matched with the inner surface of the connecting element; the inner circle surface of the seal element is sleeved on a connecting rod of the hydraulic cylinder; and the connecting rod can freely slide back and forth. The invention has the advantages that the separating arrangement of the seal body and the connecting body improves the applicability of the connecting body; and when the diameter of the connecting rod of the hydraulic cylinder is changed, the seal combination of the connecting rod and the connecting body can be simply and conveniently realized just by adjusting the position of the seal body or replacing a proper seal body without replacing the whole connecting body.
Description
Technical field
The invention belongs to the hydropower pressure regulating technical field, specifically relate to a kind of novel connecting body that is used for the fluid power cylinder of hydropower pressure regulating device.
Background technique
The hydropower pressure regulating device generally uses the fluid power cylinder to carry out pressure regulation, two cylinder barrels independent of each other about fluid power cylinder in the waterpower automatic pressure regulating device is divided into, two cylinder barrels connect as one by a connecting body, the inner chamber of two cylinder barrels and connecting body has been formed the cavity of fluid power cylinder, be provided with connecting rod in the cavity of fluid power cylinder, the two ends of connecting rod are provided with piston.Present connecting body is as a whole, and the inner chamber of connecting body and connecting rod sealing are in succession.But the cylinder of this structure point is the internal diameter of connecting body must adapt with the diameter of connecting rod, if the diameter of connecting rod changes, whole connecting body all must be changed again, not only time-consuming taking a lot of work, and also cost is very big.
Summary of the invention
In order to solve deficiency of the prior art, the purpose of this invention is to provide a kind of novel connecting body of fluid power cylinder, can adjust the diameter variation that connecting body adapts to connecting rod easily.
For achieving the above object, technological scheme of the present invention is: the novel connecting body of fluid power cylinder, described connecting body comprises a link, fixedly connected with the cylinder barrel of fluid power cylinder in the two ends of described link, the inside of described link is provided with Sealing, and the screw thread on the Sealing periphery is threaded with the link internal surface, and the periphery of Sealing cooperates with link internal surface centering, the Sealing inner headed face is socketed on the connecting rod of fluid power cylinder, and described connecting rod can freely reciprocatingly slide.
The two ends of described Sealing are provided with limited ring, and described limited ring is fixedlyed connected with described link by bolt.
Described Sealing is provided with limited step, and link is provided with the step that closely contacts with described limited step.
Described link is fixed on the cylinder barrel flange of fluid power cylinder.
Described link is by fixedlying connected with described cylinder barrel flange.
Described cylinder barrel flange and cylinder barrel are by being threaded.
Described cylinder barrel flange is welded on the cylinder barrel.
Compared with prior art, beneficial effect of the present invention shows as: the link inside of connecting body is provided with the Sealing separated from one another with link, when the connecting rod diameter of fluid power cylinder changes, need not to change again whole connecting body, only need to change the sealing combination that suitable Sealing just can be realized connecting rod and connecting body easily; The limited step of Sealing can be transferred to the suffered impact force from piston of Sealing on the link, then be delivered on the cylinder body by the cylinder barrel flange from link again, thereby eliminate impact force, improved steadiness and sealing that connecting body is connected with cylinder barrel from piston; The impact force that the setting of limited ring also can be transmitted piston plays the effect of further stabilisation system.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1-link among the figure, 2-cylinder barrel, 3-Sealing, 4-cylinder barrel flange, 5-limited ring, 6-limited step, 7-connecting rod.
Embodiment
Below in conjunction with accompanying drawing structure of the present invention is described further, but not as a limitation of the invention.
Referring to Fig. 1, the connecting body that the present invention relates to comprises a link 1, fixedly connected with the cylinder barrel 2 of fluid power cylinder in the two ends of link 1, the inside of link 1 is provided with Sealing 3, Sealing 3 peripheries are provided with screw thread, and with link 1 internal surface on set screw thread realize being threaded, the periphery of Sealing 3 cooperates with link 1 internal surface centering, Sealing 3 inner headed faces are socketed on the connecting rod 7 of fluid power cylinder, and connecting rod 7 can freely reciprocatingly slide.The two ends of connecting rod have piston, the outer surface of Sealing 3 closely contacts with the internal surface of link 1, the two ends of Sealing 3 are provided with limited ring 5, limited ring 5 is fixedlyed connected with link 1 by bolt, the impact force from piston that limited ring 5 can be subjected to Sealing 3 is delivered on the link 1, thereby pass to the impact force of cylinder barrel counteracting by link again from piston, be provided with limited step 6 between Sealing 3 and the link 1, the limited step 6 of Sealing 3 can be transferred to the Sealing 3 suffered impact forces from piston on the link 1, link 1 is fixed on the cylinder barrel flange 4 of cylinder barrel 2 of fluid power cylinder, and link 1 is fixedlyed connected with cylinder barrel flange 4 by flange.Cylinder barrel flange 4 and cylinder barrel 2 are by being threaded, and the both sides of cylinder barrel flange 4 are welded on the cylinder barrel 2.
Claims (7)
1. the novel connecting body of fluid power cylinder, described connecting body comprises a link, fixedly connected with the cylinder barrel of fluid power cylinder in the two ends of described link, it is characterized in that: the inside of described link is provided with Sealing, screw thread on the Sealing periphery is threaded with the link internal surface, the periphery of Sealing cooperates with link internal surface centering, and the Sealing inner headed face is socketed on the connecting rod of fluid power cylinder, and described connecting rod can freely reciprocatingly slide.
2. the novel connecting body of fluid power cylinder according to claim 1 is characterized in that: the two ends of described Sealing are provided with limited ring, and described limited ring is fixedlyed connected with described link by bolt.
3. the novel connecting body of fluid power cylinder according to claim 1 is characterized in that: described Sealing is provided with limited step, and link is provided with the step that closely contacts with described limited step.
4. the novel connecting body of fluid power cylinder according to claim 3 is characterized in that: described link is fixed on the cylinder barrel flange of fluid power cylinder.
5. a kind of seal that is used for the fluid power cylinder according to claim 4 is characterized in that: described link is by fixedlying connected with described cylinder barrel flange.
6. a kind of fluid power cylinder rod seal according to claim 4, it is characterized in that: described cylinder barrel flange and cylinder barrel are by being threaded.
7. a kind of fluid power cylinder rod seal according to claim 5, it is characterized in that: described cylinder barrel flange is welded on the cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102424587A CN102094871A (en) | 2009-12-14 | 2009-12-14 | Novel connecting body of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102424587A CN102094871A (en) | 2009-12-14 | 2009-12-14 | Novel connecting body of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102094871A true CN102094871A (en) | 2011-06-15 |
Family
ID=44128091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102424587A Pending CN102094871A (en) | 2009-12-14 | 2009-12-14 | Novel connecting body of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094871A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0010332A1 (en) * | 1978-10-25 | 1980-04-30 | GENERAL TECHNIC s.e.c.s. | Coupling element and method of making the same |
| US4783101A (en) * | 1987-05-20 | 1988-11-08 | Buell Industries, Inc. | Locking element |
| CN1317661A (en) * | 2001-06-08 | 2001-10-17 | 北京化工大学 | Squeezing expansion method for joinint pipes and joint assembly |
| CN2506838Y (en) * | 2001-05-08 | 2002-08-21 | 梁文华 | Pipe joint |
| CN200989287Y (en) * | 2006-12-15 | 2007-12-12 | 崔自力 | Oil-field flooding hydraulic pump |
| CN101230849A (en) * | 2008-02-14 | 2008-07-30 | 大连劳雷流体设备有限公司 | Double-piston hydropower pressure regulating pump |
| CN101424281A (en) * | 2008-11-14 | 2009-05-06 | 中国农业大学 | Ultra-high pressure aqueous medium supercharger |
| CN101578471A (en) * | 2006-12-13 | 2009-11-11 | 奥斯卡·梅尔股份有限公司 | Quick connect coupling for connecting hydraulic lines, especially in earth moving machines and the interchangeable add-on devices and tools thereof |
-
2009
- 2009-12-14 CN CN2009102424587A patent/CN102094871A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0010332A1 (en) * | 1978-10-25 | 1980-04-30 | GENERAL TECHNIC s.e.c.s. | Coupling element and method of making the same |
| US4783101A (en) * | 1987-05-20 | 1988-11-08 | Buell Industries, Inc. | Locking element |
| CN2506838Y (en) * | 2001-05-08 | 2002-08-21 | 梁文华 | Pipe joint |
| CN1317661A (en) * | 2001-06-08 | 2001-10-17 | 北京化工大学 | Squeezing expansion method for joinint pipes and joint assembly |
| CN101578471A (en) * | 2006-12-13 | 2009-11-11 | 奥斯卡·梅尔股份有限公司 | Quick connect coupling for connecting hydraulic lines, especially in earth moving machines and the interchangeable add-on devices and tools thereof |
| CN200989287Y (en) * | 2006-12-15 | 2007-12-12 | 崔自力 | Oil-field flooding hydraulic pump |
| CN101230849A (en) * | 2008-02-14 | 2008-07-30 | 大连劳雷流体设备有限公司 | Double-piston hydropower pressure regulating pump |
| CN101424281A (en) * | 2008-11-14 | 2009-05-06 | 中国农业大学 | Ultra-high pressure aqueous medium supercharger |
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Application publication date: 20110615 |