CN105422544A - Oil cylinder with internal guiding device - Google Patents
Oil cylinder with internal guiding device Download PDFInfo
- Publication number
- CN105422544A CN105422544A CN201510992634.4A CN201510992634A CN105422544A CN 105422544 A CN105422544 A CN 105422544A CN 201510992634 A CN201510992634 A CN 201510992634A CN 105422544 A CN105422544 A CN 105422544A
- Authority
- CN
- China
- Prior art keywords
- end cap
- cylinder barrel
- guide pad
- plunger
- oil cylinder
- 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
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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
- F15B15/1423—Component parts; Constructional details
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
The invention discloses an oil cylinder with an internal guiding device. The oil cylinder with the internal guiding device comprises a lower end cover, a cylinder barrel, an upper end cover, a plunger, upper screws, lower screws, a right guiding block, a left guiding block and guiding block installation screws. According to the oil cylinder, the guiding device is installed inside the oil cylinder, so that in the movement process of the oil cylinder, the radial guiding function of the oil cylinder is enhanced on one hand, and on the other hand, rotation of the oil cylinder is limited, and circumferential guiding of the oil cylinder is reliably achieved. The oil cylinder with the internal guiding device is simple in structure and reliable in work, and the problem that the installation space and condition of an external accessory guiding device of the oil cylinder are limited is solved; the oil cylinder with the internal guiding device can be applied to the occasion that circumferential rotation of the oil cylinder needs to be limited in the movement process of the oil cylinder and has broad application prospects.
Description
Technical field
The present invention relates to a kind of guiding oil cylinder, be specifically related to the built-in guiding oil cylinder of one that a kind of guiding device is installed on oil cylinder inside, belong to electric and field of electromechanical technology.
Background technique
At present, hydraulic jack has been widely used in, in all kinds of mechanized equipment, under common applied environment, utilizing hydraulic jack, by larger working force, realizes straight line motion.The guiding problem of oil cylinder in linear motion; major part is by arranging guide ring or guiding brings realization in cylinder cover and on piston; in cylinder cover He on piston, guide ring or guidance tape are set; the problem that cylinder piston rod or plunger rotate in a circumferential direction can not be solved; for the occasion needing restriction oil cylinder to rotate in a circumferential direction, the guiding device that often can add in the outer installment of oil cylinder.And in some special occasions, space and condition that outside additional guide is set cannot be met, so, must consider to arrange in oil cylinder inside guiding device, ensure to prevent rotating in a circumferential direction of oil cylinder by the guide function of oil cylinder.In the application, a kind of built-in guiding oil cylinder, solve installing space and the restricted problem of condition of oil cylinder external accessory guiding device, guiding device is installed on oil cylinder inside, strengthen the radially-directed effect of oil cylinder, reliably achieve the circumference guiding of oil cylinder simultaneously, prevent the circumference of oil cylinder from rotating.
Summary of the invention
The object of the present invention is to provide a kind of built-in guiding oil cylinder.
The technical solution used in the present invention is: a kind of built-in guiding oil cylinder, comprises lower end cap, cylinder barrel, upper end cap, plunger, screwing, lower screw, right guide pad, left guide pad and guide pad mounting screw.The middle and upper part of described lower end cap offers lower end cap oil pocket, left side offers lower end cap filler opening and lower end cap oil through, lower end cap filler opening is connected with lower end cap oil pocket by lower end cap oil through, and lower end cap top outer circle wall is provided with lower end cap seal ring, the bottom of described cylinder barrel offers cylinder barrel lower cylindrical hole, middle part offers cylindrical hole in the middle part of cylinder barrel, top offers cylinder barrel Upper cylindrical hole, in the middle part of cylinder barrel, cylindrical hole engages with cylinder barrel lower cylindrical hole and cylinder barrel Upper cylindrical hole respectively, in the middle part of cylinder barrel, the right side inwall of cylindrical hole offers the right guiding groove of cylinder barrel of axial up/down perforation, and in the middle part of cylinder barrel, the inner left wall of cylindrical hole offers the left guiding groove of cylinder barrel of axial up/down perforation, the centre of described upper end cap offers upper end cap plunger hole, upper end cap plunger hole is through upper end cap axially, on the inner peripheral wall of upper end cap plunger hole, upper end cap dust ring, upper end cap inner seal ring, upper end cap guide ring are installed from top to bottom, upper end cap lower outer circumferential wall is provided with upper end cap exterior seal ring, the bottom of described plunger with plug, the left guide pad mounting groove that the right side opening of plug is provided with the right guide pad mounting groove of axial up/down perforation, the left side of plug offers axial up/down perforation, described lower end cap inserts cylinder barrel lower cylindrical hole, and is connected with the bottom of cylinder barrel by lower screw, realizes sealing by lower end cap seal ring, described upper end cap inserts cylinder barrel Upper cylindrical hole, and is connected with the top of cylinder barrel by screwing, realizes sealing by upper end cap exterior seal ring, described right guide pad close-fitting is arranged in right guide pad mounting groove, and is fastenedly connected by guide pad mounting screw and plug, described left guide pad close-fitting is arranged in left guide pad mounting groove, and is fastenedly connected by guide pad mounting screw and plug, described plunger is arranged in cylinder barrel, in the middle part of the outer circle wall of plug and cylinder barrel cylindrical hole inner peripheral wall between form annular pass, the right guide pad be arranged in the right guide pad mounting groove on the right side of plug inserts in the right guiding groove of cylinder barrel, outer wall three directions of right guide pad and the inner wall surface of the right guiding groove of cylinder barrel are formed and are slidably matched, the left guide pad be arranged in the left guide pad mounting groove on the left of plug inserts in the left guiding groove of cylinder barrel, outer wall three directions of left guide pad and the inner wall surface of the left guiding groove of cylinder barrel are formed and are slidably matched, upper end cap plunger hole is run through on the top of plunger, stretch out in upper end cap plunger hole, and realize dust-proof by upper end cap dust ring, sealing is realized by upper end cap inner seal ring, guiding is realized by upper end cap guide ring.
When high-voltage oil liquid is by lower end cap filler opening, lower end cap oil through and lower end cap oil pocket enter oil cylinder inside, act on the bottom of plunger, overcome the effect of outer load, promotion plunger outward is stretched out, plug will drive right guide pad and left guide pad, respectively along the right guiding groove of cylinder barrel and the left guiding groove of cylinder barrel, move from bottom to top, due to right guide pad, left guide pad and the right guiding groove of cylinder barrel, the left guiding groove of cylinder barrel radial restrictive function each other, the radial direction further reducing plunger is rocked, strengthen the radially-directed effect of plunger, on the other hand, due to right guide pad, left guide pad and the right guiding groove of cylinder barrel, the left guiding groove of cylinder barrel circumferential restrictive function each other, limit the rotation of plunger, reliably achieve the circumference guiding of plunger, when outer load acts on plunger, when promoting plunger retraction, the fluid of oil cylinder inside is by lower end cap oil pocket, lower end cap oil through and lower end cap filler opening flow out, plug will drive right guide pad and left guide pad, respectively along the right guiding groove of cylinder barrel and the left guiding groove of cylinder barrel, move from the top down, equally, due to right guide pad, left guide pad and the right guiding groove of cylinder barrel, the left guiding groove of cylinder barrel radial restrictive function each other, the radial direction further reducing plunger is rocked, strengthen the radially-directed effect of plunger, on the other hand, due to right guide pad, left guide pad and the right guiding groove of cylinder barrel, the left guiding groove of cylinder barrel circumferential restrictive function each other, limit the rotation of plunger, reliably achieve the circumference guiding of plunger, so, oil cylinder of the present invention can realize reliable guiding in movement process.
Described lower end cap is connected with the bottom of cylinder barrel by lower screw, also can be, lower end cap is connected with the bottom of cylinder barrel by screw thread.
Described upper end cap is connected with the top of cylinder barrel by screwing, also can be, upper end cap is connected with the top of cylinder barrel by screw thread.
The invention has the beneficial effects as follows:
A kind of built-in guiding oil cylinder, thoroughly solve installing space and the restricted problem of condition of oil cylinder external accessory guiding device, guiding device is installed on oil cylinder inside, strengthen the radially-directed effect in cylinder movement process, reliably achieve the circumference guiding of oil cylinder simultaneously, prevent the circumference of oil cylinder from rotating.
Accompanying drawing explanation
The embodiment provided below in conjunction with accompanying drawing is described in more detail the present invention.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan view of Fig. 1.
Embodiment
As shown in Figure 1 and Figure 2, a kind of built-in guiding oil cylinder, comprises lower end cap 1, cylinder barrel 2, upper end cap 3, plunger 4, screwing 5, lower screw 6, right guide pad 8, left guide pad 9 and guide pad mounting screw 10.The middle and upper part of lower end cap 1 offers lower end cap oil pocket 1-1, left side offers lower end cap filler opening 1-3 and lower end cap oil through 1-2, lower end cap filler opening 1-3 is connected with lower end cap oil pocket 1-1 by lower end cap oil through 1-2, and lower end cap 1 top outer circle wall is provided with lower end cap seal ring 1-4, the bottom of cylinder barrel 2 offers cylinder barrel lower cylindrical hole 2-1, middle part offers cylindrical hole 2-2 in the middle part of cylinder barrel, top offers cylinder barrel Upper cylindrical hole 2-3, in the middle part of cylinder barrel, cylindrical hole 2-2 engages with cylinder barrel lower cylindrical hole 2-1 and cylinder barrel Upper cylindrical hole 2-3 respectively, in the middle part of cylinder barrel, the right side inwall of cylindrical hole 2-2 offers the right guiding groove 2-4 of cylinder barrel of axial up/down perforation, and in the middle part of cylinder barrel, the inner left wall of cylindrical hole 2-2 offers the left guiding groove 2-5 of cylinder barrel of axial up/down perforation, the centre of upper end cap 3 offers upper end cap plunger hole 3-5, upper end cap plunger hole 3-5 is through upper end cap 3 axially, on the inner peripheral wall of upper end cap plunger hole 3-5, upper end cap dust ring 3-2, upper end cap inner seal ring 3-3, upper end cap guide ring 3-4 are installed from top to bottom, upper end cap 3 lower outer circumferential wall is provided with upper end cap exterior seal ring 3-1, the bottom of plunger 4 with plug 4-1, the left guide pad mounting groove 4-3 that the right side opening of plug 4-1 is provided with the right guide pad mounting groove 4-2 of axial up/down perforation, the left side of plug 4-1 offers axial up/down perforation, lower end cap 1 inserts cylinder barrel lower cylindrical hole 2-1, and is connected with the bottom of cylinder barrel 2 by lower screw 6, realizes sealing by lower end cap seal ring 1-4, upper end cap 3 inserts cylinder barrel Upper cylindrical hole 2-3, and is connected by the top of screwing 5 with cylinder barrel 2, realizes sealing by upper end cap exterior seal ring 3-1, right guide pad 8 close-fitting is arranged in right guide pad mounting groove 4-2, and is fastenedly connected with plug 4-1 by guide pad mounting screw 10, left guide pad 9 close-fitting is arranged in left guide pad mounting groove 4-3, and is fastenedly connected with plug 4-1 by guide pad mounting screw 10, plunger 4 is arranged in cylinder barrel 2, in the middle part of the outer circle wall of plug 4-1 and cylinder barrel cylindrical hole 2-2 inner peripheral wall between form annular pass 7, the right guide pad 8 be arranged in the right guide pad mounting groove 4-2 on the right side of plug 4-1 inserts in the right guiding groove 2-4 of cylinder barrel, outer wall three directions of right guide pad 8 and the inner wall surface of the right guiding groove 2-4 of cylinder barrel are formed and are slidably matched, the left guide pad 9 be arranged in the left guide pad mounting groove 4-3 on the left of plug 4-1 inserts in the left guiding groove 2-5 of cylinder barrel, outer wall three directions of left guide pad 9 and the inner wall surface of the left guiding groove 2-5 of cylinder barrel are formed and are slidably matched, upper end cap plunger hole 3-5 is run through on the top of plunger 4, stretch out in upper end cap plunger hole 3-5, and realize dust-proof by upper end cap dust ring 3-2, sealing is realized by upper end cap inner seal ring 3-3, guiding is realized by upper end cap guide ring 3-4.
When high-voltage oil liquid is by lower end cap filler opening 1-3, lower end cap oil through 1-2 and lower end cap oil pocket 1-1 enters oil cylinder inside, act on the bottom of plunger 4, overcome the effect of outer load, promote plunger 4 protruding, plug 4-1 will drive right guide pad 8 and left guide pad 9, respectively along cylinder barrel right guiding groove 2-4 and the left guiding groove 2-5 of cylinder barrel, move from bottom to top, due to right guide pad 8, left guide pad 9 and the right guiding groove 2-4 of cylinder barrel, cylinder barrel left guiding groove 2-5 radial restrictive function each other, the radial direction further reducing plunger 4 is rocked, strengthen the radially-directed effect of plunger 4, on the other hand, due to right guide pad 8, left guide pad 9 and the right guiding groove 2-4 of cylinder barrel, cylinder barrel left guiding groove 2-5 circumferential restrictive function each other, limit the rotation of plunger 4, reliably achieve the circumference guiding of plunger 4, when outer load acts on plunger 4, when promotion plunger 4 is retracted, the fluid of oil cylinder inside is by lower end cap oil pocket 1-1, lower end cap oil through 1-2 and lower end cap filler opening 1-3 flows out, plug 4-1 will drive right guide pad 8 and left guide pad 9, respectively along cylinder barrel right guiding groove 2-4 and the left guiding groove 2-5 of cylinder barrel, move from the top down, equally, due to right guide pad 8, left guide pad 9 and the right guiding groove 2-4 of cylinder barrel, cylinder barrel left guiding groove 2-5 radial restrictive function each other, the radial direction further reducing plunger 4 is rocked, strengthen the radially-directed effect of plunger 4, on the other hand, due to right guide pad 8, left guide pad 9 and the right guiding groove 2-4 of cylinder barrel, cylinder barrel left guiding groove 2-5 circumferential restrictive function each other, limit the rotation of plunger 4, reliably achieve the circumference guiding of plunger 4, so, oil cylinder of the present invention can realize reliable guiding in movement process.
Preferably, above-mentioned lower end cap 1 is connected by the bottom of screw thread with cylinder barrel 2.
Preferably, above-mentioned upper end cap 3 is connected by the top of screw thread with cylinder barrel 2.
A kind of built-in guiding oil cylinder of the present invention, structure is simple, reliable operation, thoroughly solve installing space and the restricted problem of condition of oil cylinder external accessory guiding device, guiding device is installed on oil cylinder inside, strengthen the radially-directed effect in cylinder movement process, reliably achieve the circumference guiding of oil cylinder simultaneously, prevent the circumference of oil cylinder from rotating.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a built-in guiding oil cylinder, is characterized in that: comprise lower end cap (1), cylinder barrel (2), upper end cap (3), plunger (4), screwing (5), lower screw (6), right guide pad (8), left guide pad (9) and guide pad mounting screw (10), the middle and upper part of described lower end cap (1) offers lower end cap oil pocket (1-1), left side offers lower end cap filler opening (1-3) and lower end cap oil through (1-2), described lower end cap filler opening (1-3) is connected with lower end cap oil pocket (1-1) by lower end cap oil through (1-2), and lower end cap (1) top outer circle wall is provided with lower end cap seal ring (1-4), the bottom of described cylinder barrel (2) offers cylinder barrel lower cylindrical hole (2-1), middle part offers cylindrical hole in the middle part of cylinder barrel (2-2), top offers cylinder barrel Upper cylindrical hole (2-3), in the middle part of cylinder barrel, cylindrical hole (2-2) engages with cylinder barrel lower cylindrical hole (2-1) and cylinder barrel Upper cylindrical hole (2-3) respectively, in the middle part of cylinder barrel, the right side inwall of cylindrical hole (2-2) offers the right guiding groove of cylinder barrel (2-4) of axial up/down perforation, and in the middle part of cylinder barrel, the inner left wall of cylindrical hole (2-2) offers the left guiding groove of cylinder barrel (2-5) of axial up/down perforation, the centre of described upper end cap (3) offers upper end cap plunger hole (3-5), upper end cap plunger hole (3-5) is through upper end cap (3) axially, on the inner peripheral wall of upper end cap plunger hole (3-5), upper end cap dust ring (3-2), upper end cap inner seal ring (3-3), upper end cap guide ring (3-4) are installed from top to bottom, upper end cap (3) lower outer circumferential wall are provided with upper end cap exterior seal ring (3-1), the bottom of described plunger (4) with plug (4-1), the left guide pad mounting groove (4-3) that the right side opening of plug (4-1) is provided with the right guide pad mounting groove (4-2) of axial up/down perforation, the left side of plug (4-1) offers axial up/down perforation, described lower end cap (1) inserts cylinder barrel lower cylindrical hole (2-1), and is connected by the bottom of lower screw (6) with cylinder barrel (2), realizes sealing by lower end cap seal ring (1-4), described upper end cap (3) inserts cylinder barrel Upper cylindrical hole (2-3), and is connected by the top of screwing (5) with cylinder barrel (2), realizes sealing by upper end cap exterior seal ring (3-1), described right guide pad (8) close-fitting is arranged in right guide pad mounting groove (4-2), and is fastenedly connected by guide pad mounting screw (10) and plug (4-1), described left guide pad (9) close-fitting is arranged in left guide pad mounting groove (4-3), and is fastenedly connected by guide pad mounting screw (10) and plug (4-1), described plunger (4) is arranged in cylinder barrel (2), in the middle part of the outer circle wall of plug (4-1) and cylinder barrel cylindrical hole (2-2) inner peripheral wall between form annular pass (7), the right guide pad (8) be arranged in the right guide pad mounting groove (4-2) on plug (4-1) right side inserts in the right guiding groove of cylinder barrel (2-4), outer wall three directions of right guide pad (8) and the inner wall surface of the right guiding groove of cylinder barrel (2-4) are formed and are slidably matched, the left guide pad (9) be arranged in the left guide pad mounting groove (4-3) in plug (4-1) left side inserts in the left guiding groove of cylinder barrel (2-5), outer wall three directions of left guide pad (9) and the inner wall surface of the left guiding groove of cylinder barrel (2-5) are formed and are slidably matched, upper end cap plunger hole (3-5) is run through on the top of plunger (4), stretch out in upper end cap plunger hole (3-5), and realize dust-proof by upper end cap dust ring (3-2), sealing is realized by upper end cap inner seal ring (3-3), guiding is realized by upper end cap guide ring (3-4).
2. the built-in guiding oil cylinder of one according to claim 1, is characterized in that: the bottom of described lower end cap (1) and cylinder barrel (2) is threaded connection.
3. the built-in guiding oil cylinder of one according to claim 1, is characterized in that: the top of described upper end cap (3) and cylinder barrel (2) is threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510992634.4A CN105422544A (en) | 2015-12-25 | 2015-12-25 | Oil cylinder with internal guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510992634.4A CN105422544A (en) | 2015-12-25 | 2015-12-25 | Oil cylinder with internal guiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422544A true CN105422544A (en) | 2016-03-23 |
Family
ID=55501001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510992634.4A Pending CN105422544A (en) | 2015-12-25 | 2015-12-25 | Oil cylinder with internal guiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422544A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55177503U (en) * | 1979-06-08 | 1980-12-19 | ||
| CN1251885A (en) * | 1998-10-21 | 2000-05-03 | 杨世祥 | Digitalized electric cylinder with inner guide unit |
| CN1119534C (en) * | 1997-09-19 | 2003-08-27 | 速睦喜股份有限公司 | Fluid-pressure cylinder apparatus |
| CN201092987Y (en) * | 2007-08-22 | 2008-07-30 | 中国舰船研究设计中心 | Inner guiding torsion-proof telescopic piston jar |
| CN202718962U (en) * | 2012-06-17 | 2013-02-06 | 福建省龙岩盛通液压有限公司 | Guiding structure of hydraulic oil cylinder |
| CN103557200A (en) * | 2013-11-22 | 2014-02-05 | 徐州徐工液压件有限公司 | Hydraulic cylinder with rotation resistant mechanism |
| CN104088848A (en) * | 2014-07-03 | 2014-10-08 | 福建海源自动化机械股份有限公司 | Anti-rotation servo oil cylinder of external displacement sensor |
-
2015
- 2015-12-25 CN CN201510992634.4A patent/CN105422544A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55177503U (en) * | 1979-06-08 | 1980-12-19 | ||
| CN1119534C (en) * | 1997-09-19 | 2003-08-27 | 速睦喜股份有限公司 | Fluid-pressure cylinder apparatus |
| CN1251885A (en) * | 1998-10-21 | 2000-05-03 | 杨世祥 | Digitalized electric cylinder with inner guide unit |
| CN201092987Y (en) * | 2007-08-22 | 2008-07-30 | 中国舰船研究设计中心 | Inner guiding torsion-proof telescopic piston jar |
| CN202718962U (en) * | 2012-06-17 | 2013-02-06 | 福建省龙岩盛通液压有限公司 | Guiding structure of hydraulic oil cylinder |
| CN103557200A (en) * | 2013-11-22 | 2014-02-05 | 徐州徐工液压件有限公司 | Hydraulic cylinder with rotation resistant mechanism |
| CN104088848A (en) * | 2014-07-03 | 2014-10-08 | 福建海源自动化机械股份有限公司 | Anti-rotation servo oil cylinder of external displacement sensor |
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| 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: 20160323 |