CN106321563A - Annular hydraulic cylinder provided with mechanical self-locking devices - Google Patents
Annular hydraulic cylinder provided with mechanical self-locking devices Download PDFInfo
- Publication number
- CN106321563A CN106321563A CN201610953926.1A CN201610953926A CN106321563A CN 106321563 A CN106321563 A CN 106321563A CN 201610953926 A CN201610953926 A CN 201610953926A CN 106321563 A CN106321563 A CN 106321563A
- Authority
- CN
- China
- Prior art keywords
- self
- annular
- cylinder
- locking
- hydraulic 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
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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
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- 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
- F15B15/1428—Cylinders
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention provides an annular hydraulic cylinder provided with mechanical self-locking devices. The annular hydraulic cylinder comprises a cylinder base, an annular cylinder body and an annular piston, wherein the annular cylinder body is fixedly mounted on the cylinder base through screws, the annular piston is matched with the annular cylinder body to form a closed hydraulic cavity, sealing rings are mounted on the annular piston and the annular cylinder body, an oil inlet hole is formed in the annular cylinder body, two symmetrically distributed self-locking grooves are formed in the cylinder base, self-locking pins and self-locking springs are mounted in the self-locking grooves, and the self-locking grooves, the self-locking springs and the self-locking pins form mechanical self-locking devices. The annular hydraulic cylinder is simple in structure and convenient to mount and can realize mechanical self-locking when the hydraulic cylinder jacks a bearing shaft.
Description
Technical field
The present invention relates to hydraulic cylinder field, especially, relate to a kind of annular hydraulic cylinder with mechanical self-locking device.
Background technology
In prior art, the jack-up piston of hydraulic jack is generally configured to solid rod-like, and this needs uniform stressed at some
Shaft-like bearing member in cannot complete work.After jack is by weight jack-up, unexpected for preventing hydraulic cylinder from occurring, typically use
Add the way such as steel column or sleeper being lifted between weight and ground pad, but the structure of some load-bearing material do not allow pad to add steel column etc.,
Can only be completed by the self-locking of hydraulic cylinder.
In conventional art, hydraulic cylinder self locking many employings hydraulic valve realizes, but due to the leakage of hydraulic valve, this mode is not
Enough safe and reliable.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of annular hydraulic cylinder with mechanical self-locking device.Including: cylinder
Seat, circular cylinder, annular piston.Circular cylinder is fixedly mounted on cylinder seat by screw, and annular piston coordinates with circular cylinder
Form the hydraulic cavities closed, annular piston and circular cylinder are fitted with sealing ring, circular cylinder has fuel feed hole.
Further, cylinder seat has two symmetrical self-locking grooves, self-locking grooves is provided with self-locking spring and self-locking
Pin, self-locking grooves, self-locking spring constitute mechanical self-locking device with self-lock pin.
Further, circular cylinder and annular piston are all the cylindrical body of hollow.
Further, cylinder seat and annular piston are all provided with guide bearing with load-bearing between centers.
Further, annular piston weight-bearing surface is provided with silica gel pad.
It is an advantage of the current invention that:
Present configuration is simple, easy for installation and have mechanical self-latching function, safe and reliable.
The annular piston of the present invention is designed to the tubular of hollow, it is simple to load-bearing axle is inserted.Cylinder seat and annular piston are all
Being provided with guide bearing with load-bearing between centers makes load-bearing axle to move axially, in the load-carrying surface of annular piston install silica gel pad with
Alleviate the vibration carrying out self-supporting axle.
Accompanying drawing explanation
Fig. 1 is the present invention schematic diagram when annular piston falls
Fig. 2 is present invention schematic diagram when being lifted by load-bearing axle.
Fig. 3 is the structural representation of self-lock pin.
In accompanying drawing:
1, cylinder seat；2, circular cylinder；3, annular piston；4, silica gel pad；5, the load-bearing shaft shoulder；6, load-bearing axle；7, guide bearing；
8, the first sealing ring；9, the second sealing ring；10, fuel feed hole；11, self-locking spring；12, self-locking grooves；13, self-lock pin；14, unblank hands
Handle.
Detailed description of the invention
For fully explaining technical scheme, illustrate below in conjunction with accompanying drawing.
As it is shown in figure 1, The embodiment provides a kind of annular hydraulic cylinder with mechanical self-locking device.Including:
Cylinder seat (1), circular cylinder (2), annular piston (3).Circular cylinder (2) is fixedly mounted on cylinder seat (1) by screw, and annular is lived
Plug (3) and circular cylinder (2) cooperatively form the hydraulic cavities of closing, and annular piston (3) and circular cylinder (2) are separately installed with the
One sealing ring (8) and the second sealing ring (9), circular cylinder (2) has fuel feed hole (10).
For making hydraulic cylinder be capable of mechanical self-latching, cylinder seat (1) has two symmetrical self-locking grooves (12), from
Locked groove (12) is provided with self-lock pin (13) and self-locking spring (11), self-locking grooves (12), self-locking spring (11) and self-lock pin (13)
Constitute mechanical self-locking device.When annular piston (3) falls, self-lock pin (13) withstands in the outer peripheral wall of annular piston (3).
For preventing hydraulic cylinder and load-bearing axle (6) from rigid collision occurring, at annular piston (3) and cylinder seat (1) and load-bearing between centers
(6) it is fitted with guide bearing (7), the weight-bearing surface of annular piston (3) is provided with silica gel pad (4).
When needs are by load-bearing axle (6) jack-up, high pressure liquid force feed is entered by annular piston (3) and annular by fuel feed hole (10)
The hydraulic cavities that cylinder body (2) cooperatively forms, annular piston (3) up moves through the load-bearing shaft shoulder under the pressure of high pressure liquid force feed
(5) load-bearing axle (6) is lifted, when annular piston (3) is increased to certain position, the self-lock pin (13) effect in self-locking spring (11)
Under spring into the gap between annular piston (3) and cylinder seat (1), complete self-locking, as shown in Figure 3.When needs unlock, manually pull certainly
Unlocking handle (14) on lock pin (13) can complete to unlock.
Claims (5)
1. the annular hydraulic cylinder with mechanical self-locking device, it is characterised in that: include cylinder seat, circular cylinder, annular piston,
Circular cylinder is fixedly mounted on cylinder seat by screw, and annular piston and circular cylinder cooperatively form the hydraulic cavities of closing, annular
It is separately installed with sealing ring on piston and circular cylinder, circular cylinder has fuel feed hole.
A kind of annular hydraulic cylinder with mechanical self-locking device the most according to claim 1, it is characterised in that: open on cylinder seat
There are two symmetrical self-locking grooves, self-locking grooves is provided with self-locking spring and self-lock pin, self-locking grooves, self-locking spring and self-lock pin
Constitute mechanical self-locking device.
A kind of annular hydraulic cylinder with mechanical self-locking device the most according to claim 1, it is characterised in that: circular cylinder
It it is all the cylindrical body of hollow with annular piston.
A kind of annular hydraulic cylinder with mechanical self-locking device the most according to claim 1, it is characterised in that: cylinder seat and ring
Shape piston is all provided with guide bearing with load-bearing between centers.
A kind of annular hydraulic cylinder with mechanical self-locking device the most according to claim 1, it is characterised in that: annular piston
Silica gel pad is installed on weight-bearing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610953926.1A CN106321563A (en) | 2016-10-27 | 2016-10-27 | Annular hydraulic cylinder provided with mechanical self-locking devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610953926.1A CN106321563A (en) | 2016-10-27 | 2016-10-27 | Annular hydraulic cylinder provided with mechanical self-locking devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321563A true CN106321563A (en) | 2017-01-11 |
Family
ID=57819034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610953926.1A Pending CN106321563A (en) | 2016-10-27 | 2016-10-27 | Annular hydraulic cylinder provided with mechanical self-locking devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321563A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2446117Y (en) * | 2000-06-28 | 2001-09-05 | 张红兵 | Lifting hydraulic jack |
| CN2464929Y (en) * | 2000-10-24 | 2001-12-12 | 刘学志 | Adjustable sand blasting hole repairing wellhead controller |
| CN1715173A (en) * | 2005-07-08 | 2006-01-04 | 花周建 | Anti-falling feed-through type hydraulic lifting and descending jack |
| CN1915785A (en) * | 2006-09-05 | 2007-02-21 | 南通四建集团有限公司 | Pressure loss falling prevention device in hydraulic climbing system |
| CN201786811U (en) * | 2010-09-25 | 2011-04-06 | 大连首轮机械工业有限公司 | Cylinder with self-locking structure |
| CN201882850U (en) * | 2010-12-03 | 2011-06-29 | 河南红桥锚机有限公司 | Tensioning hydraulic jack with prestressed tendon |
| CN201885697U (en) * | 2010-11-01 | 2011-06-29 | 河南红桥锚机有限公司 | Automatic tension monitoring system for prestressed reinforcements |
| CN203612170U (en) * | 2013-11-18 | 2014-05-28 | 中船桂江造船有限公司 | Propeller installing tool |
| CN204357821U (en) * | 2014-11-21 | 2015-05-27 | 安徽理工大学 | A kind of mechanical self-locking hydraulic cylinder |
| CN206206320U (en) * | 2016-10-27 | 2017-05-31 | 哈尔滨理工大学 | A kind of annular hydraulic cylinder with mechanical self-locking device |
-
2016
- 2016-10-27 CN CN201610953926.1A patent/CN106321563A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2446117Y (en) * | 2000-06-28 | 2001-09-05 | 张红兵 | Lifting hydraulic jack |
| CN2464929Y (en) * | 2000-10-24 | 2001-12-12 | 刘学志 | Adjustable sand blasting hole repairing wellhead controller |
| CN1715173A (en) * | 2005-07-08 | 2006-01-04 | 花周建 | Anti-falling feed-through type hydraulic lifting and descending jack |
| CN1915785A (en) * | 2006-09-05 | 2007-02-21 | 南通四建集团有限公司 | Pressure loss falling prevention device in hydraulic climbing system |
| CN201786811U (en) * | 2010-09-25 | 2011-04-06 | 大连首轮机械工业有限公司 | Cylinder with self-locking structure |
| CN201885697U (en) * | 2010-11-01 | 2011-06-29 | 河南红桥锚机有限公司 | Automatic tension monitoring system for prestressed reinforcements |
| CN201882850U (en) * | 2010-12-03 | 2011-06-29 | 河南红桥锚机有限公司 | Tensioning hydraulic jack with prestressed tendon |
| CN203612170U (en) * | 2013-11-18 | 2014-05-28 | 中船桂江造船有限公司 | Propeller installing tool |
| CN204357821U (en) * | 2014-11-21 | 2015-05-27 | 安徽理工大学 | A kind of mechanical self-locking hydraulic cylinder |
| CN206206320U (en) * | 2016-10-27 | 2017-05-31 | 哈尔滨理工大学 | A kind of annular hydraulic cylinder with mechanical self-locking device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |