CN104373418A - Piston rod type hydraulic cylinder structure - Google Patents
Piston rod type hydraulic cylinder structure Download PDFInfo
- Publication number
- CN104373418A CN104373418A CN201410595763.5A CN201410595763A CN104373418A CN 104373418 A CN104373418 A CN 104373418A CN 201410595763 A CN201410595763 A CN 201410595763A CN 104373418 A CN104373418 A CN 104373418A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- piston
- hydraulic cylinder
- type hydraulic
- cylinder barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1471—Guiding means other than in the end cap
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention provides a piston rod type hydraulic cylinder structure. Two piston rods are of a split structure. The two ends of a piston are each connected with one piston rod. The piston rods and the piston are connected in a taper pin radial mode. The two piston rods are hollow. The ends, adjacent to the piston, of the piston rods are provided with radial holes for inflow and outflow of hydraulic oil. The two piston rods are of a cylindrical structure, the end, extending out of a cylinder barrel, of each piston rod is used for inflow and outflow of the hydraulic oil, and the end, for being connected with the piston, of each piston rod is connected with a plug. The end, connected with the piston, of each piston rod is provided with steps. The plugs are arranged on the top of the corresponding steps. An axial hole is formed in each plug and communicated with the radial hole in the corresponding piston rod. According to the piston rod type hydraulic cylinder structure, the two sides of the piston are each provided with one piston rod for transmitting power. According to the piston rod type hydraulic cylinder structure, the structure connecting mode is simple, displacement can be effectively transmitted, and overhauling is easy.
Description
Technical field
The present invention relates to a kind of piston rod type hydraulic cylinder structure, belong to field of mechanical technique.
Background technique
Piston rod type oil hydraulic cylinder is for transmitting displacement amount, existing hydraulic cylinder structure is ensure that piston rod is often made of one formula structure by certain displacement transmitting accuracy, be the connection of piston rod and piston for directly to connect, so ensure the transmission validity of the bidirectional displacement amount of oil hydraulic cylinder.This kind of structural type is single, often cannot complete required task in actual applications.
Summary of the invention
The invention provides a kind of piston rod type hydraulic cylinder structure, the above defect can be overcome, different from the structure of existing Simple hydraulic cylinder.
For solving above technical problem, the invention provides following technological scheme: a kind of piston rod type hydraulic cylinder structure, described hydraulic cylinder structure comprises piston rod, bracket, exhaust port, guide sleeve, piston, taper pin, cylinder barrel, pressing plate, steel wire ring, gland, cylinder cap, guide sleeve, gland, described piston rod connects piston, piston is placed in cylinder barrel, piston rod stretches out cylinder barrel, two ports of cylinder barrel connect cylinder cap, described piston rod is split-type structural, piston rod is two, the two ends of piston respectively connect a piston rod, piston rod is connected for adopting taper pin radial direction with the Placement of piston, two piston rods are hollow stem, and on piston rod, adjacent piston end is provided with the turnover of radial hole for hydraulic oil, the tubular construction of described two piston rods, it stretches out the turnover of one end for hydraulic oil of cylinder barrel, is connected with plug for the one end connecting piston, piston rod connects piston end and has step, and plug top set is in step place, described plug has an axial bore, and this axial bore communicates with radial hole on piston rod.
Further, described taper pin connects piston rod and plug, and this tie point is just in plug and closes place.
Further, have guide sleeve between described cylinder cap and piston rod, guide sleeve is extruded by gland, and gland is bolted on cylinder cap.
Further, the center of described outside piston diametric plane has circular groove, and the both sides of circular groove are provided with seal ring.
Further, described cylinder barrel connects annular pressing plate outward, is connected steel wire ring between annular pressing plate with cylinder barrel.
Further, paper washer is provided with between described cylinder cap and cylinder barrel.
This piston rod type hydraulic cylinder structure that the present invention relates to, bilateral all has piston rod in order to transferring power.Its anatomical connectivity form is simple, effectively can transmit displacement amount, is easy to maintenance.
Accompanying drawing explanation
Fig. 1 is a kind of piston rod type hydraulic cylinder structure of the present invention structural representation;
1-piston rod; 2-plug; 3-bracket; 4-seal ring; 5-exhaust port; 6-guide sleeve; 7-seal ring; 8-piston; 9-taper pin; 10-cylinder barrel; 11-pressing plate; 12-steel wire ring; 13-paper washer; 14-exhaust port; 15-piston rod; 16-gland; 17-seal ring; 18-cylinder cap; 19-guide sleeve; 20-pressing plate; 21-steel wire ring; 22-taper pin; 23-paper washer; 24-cylinder cap; 25-gland.
Embodiment
As shown in Figure 1, a kind of piston rod type hydraulic cylinder structure, described hydraulic cylinder structure comprises piston rod 1, bracket, exhaust port 5, guide sleeve 6, piston 8, taper pin 9, cylinder barrel 10, pressing plate 11, steel wire ring 12, gland 16, cylinder cap 18, guide sleeve 6, gland 25, described piston rod connects piston 8, piston 8 is placed in cylinder barrel 10, piston rod stretches out cylinder barrel, two ports of cylinder barrel connect cylinder cap, described piston rod is split-type structural, piston rod is two, piston rod 1 and piston rod 15, the two ends of piston 8 respectively connect a piston rod, piston rod 1 and piston rod 15 and the Placement of piston are taper pin 22 radial direction and are connected, described piston rod 1 and piston rod 15 are hollow stem, and on piston rod 1 and piston rod 15, adjacent piston end is provided with the turnover of radial hole for hydraulic oil.The tubular construction of described piston rod 1 and piston rod 15, it stretches out the turnover of one end for hydraulic oil of cylinder barrel, and the one end for connecting piston is connected with plug 2; Two piston rods connect piston 8 end place and have step, and plug 2 top set is in step place; Described plug 2 has an axial bore, and this axial bore communicates with radial hole on piston rod.Described taper pin 9 and taper pin 22 are connected piston rod 1 and piston rod 15 respectively, and as shown in the figure, taper pin 9 connects piston rod 1 and plug 2, and this tie point is just in plug and closes place, and axial bore is counterbore, and axial bore does not go deep into part.
In figure, the chamber, left and right two of oil hydraulic cylinder is communicated with left and right radial hole 1 and c through the center hole of piston rod 1 and piston rod 15 by hydraulic fluid port b and hydraulic fluid port d.Because piston rod is fixed on lathe bed, cylinder barrel 10 is fixing on the table, and worktable, at radial hole c cut-in pressure oil, moves right when radial hole a connects oil return, otherwise is then moved to the left.Cylinder cap 18 is connected with pressing plate 20 with pressing plate 11 by screw with cylinder cap 24, and is fixed on cylinder barrel 10 through steel wire ring 12 and steel wire ring 21.Consider in hydraulic cylinder works elongation of will generating heat, it is only fixedly linked with worktable with right cylinder cap 18, and left cylinder cap 24 empty set, can free-extension in bracket 3 hole.
Described cylinder cap 18 is connected with the two-port of cylinder barrel with cylinder cap 24, all has guide sleeve 6 and then guide sleeve 19 between the two and piston rod, and guide sleeve 6 and guide sleeve 19 are extruded by gland 16 and gland 25 respectively, and two glands are bolted on cylinder cap 18 and cylinder cap 24.
The center of described piston 8 cylindrical diametric plane has circular groove, and the both sides of circular groove are provided with seal ring 7.
Described cylinder barrel 10 is outer connects annular pressing plate 11 and annular pressing plate 20, is connected steel wire ring 12 and steel wire ring 21 between annular pressing plate 11 with cylinder barrel 10.
As shown in Figure 1, this oil hydraulic cylinder is fixed by bracket 3, and cylinder cap 18 and cylinder cap 24 are respectively equipped with exhaust port 5 and exhaust port 14.
Paper washer 13 and paper washer 23 is provided with between described cylinder cap and cylinder barrel.
Embodiment of the present invention does not form the restriction to the application's scope; within every spirit in the present invention's design and principle, any amendment that one of skill in the art can make, equivalent to replace and improvement etc. all should be included within protection scope of the present invention.
Claims (6)
1. a piston rod type hydraulic cylinder structure, described hydraulic cylinder structure comprises piston rod, bracket, exhaust port, guide sleeve, piston, taper pin, cylinder barrel, pressing plate, steel wire ring, gland, cylinder cap, guide sleeve, gland, described piston rod connects piston, piston is placed in cylinder barrel, piston rod stretches out cylinder barrel, two ports of cylinder barrel connect cylinder cap, it is characterized in that, described piston rod is split-type structural, piston rod is two, the two ends of piston respectively connect a piston rod, and piston rod is connected for adopting taper pin radial direction with the Placement of piston; Two piston rods are hollow stem, and on piston rod, adjacent piston end is provided with the turnover of radial hole for hydraulic oil; The tubular construction of described two piston rods, it stretches out the turnover of one end for hydraulic oil of cylinder barrel, is connected with plug for the one end connecting piston; Piston rod connects piston end and has step, and plug top set is in step place; Described plug has an axial bore, and this axial bore communicates with radial hole on piston rod.
2. a kind of piston rod type hydraulic cylinder structure according to claim 1, is characterized in that, described taper pin connects piston rod and plug, and this tie point is just in plug and closes place.
3. a kind of piston rod type hydraulic cylinder structure according to claim 1, it is characterized in that, have guide sleeve between described cylinder cap and piston rod, guide sleeve is extruded by gland, and gland is bolted on cylinder cap.
4. a kind of piston rod type hydraulic cylinder structure according to claim 1, is characterized in that, the center of described outside piston diametric plane has circular groove, and the both sides of circular groove are provided with seal ring.
5. a kind of piston rod type hydraulic cylinder structure according to claim 1, it is characterized in that, described cylinder barrel connects annular pressing plate outward, is connected steel wire ring between annular pressing plate with cylinder barrel.
6. a kind of piston rod type hydraulic cylinder structure according to claim 1, is characterized in that, be provided with paper washer between described cylinder cap and cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410595763.5A CN104373418A (en) | 2014-10-30 | 2014-10-30 | Piston rod type hydraulic cylinder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410595763.5A CN104373418A (en) | 2014-10-30 | 2014-10-30 | Piston rod type hydraulic cylinder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373418A true CN104373418A (en) | 2015-02-25 |
Family
ID=52552520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410595763.5A Pending CN104373418A (en) | 2014-10-30 | 2014-10-30 | Piston rod type hydraulic cylinder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373418A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369005A (en) * | 2016-10-14 | 2017-02-01 | 广西欧讯科技服务有限责任公司 | Durable hydraulic cylinder for ship |
| CN106402258A (en) * | 2016-09-30 | 2017-02-15 | 辽宁工业大学 | Damp-controllable shock absorber strut assembly |
| CN106438559A (en) * | 2016-10-14 | 2017-02-22 | 广西欧讯科技服务有限责任公司 | Ship hydraulic oil cylinder |
| CN113251026A (en) * | 2021-06-03 | 2021-08-13 | 一重集团大连工程技术有限公司 | Combined piston rod for stretcher and piston cylinder with same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2552745Y (en) * | 2002-07-05 | 2003-05-28 | 煤炭科学研究总院太原分院 | Hydraulic buffer adjustable suspension for vehicle |
-
2014
- 2014-10-30 CN CN201410595763.5A patent/CN104373418A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2552745Y (en) * | 2002-07-05 | 2003-05-28 | 煤炭科学研究总院太原分院 | Hydraulic buffer adjustable suspension for vehicle |
Non-Patent Citations (2)
| Title |
|---|
| 王慧，等: "《液压与气压传动》", 30 September 2011, 东北大学出版社 * |
| 黄志坚: "《液压实用技术500问》", 31 July 2013, 中国电力出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402258A (en) * | 2016-09-30 | 2017-02-15 | 辽宁工业大学 | Damp-controllable shock absorber strut assembly |
| CN106369005A (en) * | 2016-10-14 | 2017-02-01 | 广西欧讯科技服务有限责任公司 | Durable hydraulic cylinder for ship |
| CN106438559A (en) * | 2016-10-14 | 2017-02-22 | 广西欧讯科技服务有限责任公司 | Ship hydraulic oil cylinder |
| CN113251026A (en) * | 2021-06-03 | 2021-08-13 | 一重集团大连工程技术有限公司 | Combined piston rod for stretcher and piston cylinder with same |
| CN113251026B (en) * | 2021-06-03 | 2024-02-06 | 一重集团大连工程技术有限公司 | Combined piston rod for stretcher and piston cylinder with piston rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150225 |