CN105422534A - Flow limiting valve - Google Patents
Flow limiting valve Download PDFInfo
- Publication number
- CN105422534A CN105422534A CN201510833438.2A CN201510833438A CN105422534A CN 105422534 A CN105422534 A CN 105422534A CN 201510833438 A CN201510833438 A CN 201510833438A CN 105422534 A CN105422534 A CN 105422534A
- Authority
- CN
- China
- Prior art keywords
- constrictor
- flow limiting
- pad
- shell
- current limliting
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/009—Influencing flow of fluids by means of vortex rings
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/008—Throttling member profiles
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a flow limiting valve and relates to the technical field of hydraulic pressure. The flow limiting valve comprises an end cover, a plurality of gaskets, flow limiting pieces and a shell. A first through hole is formed in each gasket. Vortex grooves are formed in the two sides of each flow limiting piece, and the vortex grooves in the two sides of each flow limiting piece are communicated. The gaskets are arranged on the two sides of the flow limiting piece, and the vortex grooves are communicated with the first through holes. The shell is provided with a containing cavity. The gaskets and the flow limiting pieces are placed in the containing cavity. The shell is sleeved with the end cover, and the end cover is fixedly connected with the shell and tightly presses the gaskets and the flow limiting pieces in the axial direction. The flow limiting valve has the advantages that the vortex grooves are formed in the flow limiting pieces, liquid passes through the vortex grooves to form vortexes, the flow speed of the liquid is decreased, multiple flow limiting pieces can be arranged according to the flow control requirements, and the effective control over the extremely small flow is achieved.
Description
Technical field
The present invention relates to hydraulic system technical field, be specifically related to a kind of current limliting valve.
Background technique
Current limliting valve is a kind of flow control annex that hydraulic system is commonly used, and is mainly used in the movement velocity of hydraulic control actuating system.Commercially the bidirectional current limiting valve of application at present mainly uses orifice restriction technology, and by the flow velocity of the change adjustment hydraulic oil in aperture, for preventing the alluvial of metering hole from blocking, aperture can not be too small, therefore cannot form effective control to the system of minimum flow.
Summary of the invention
The object of this invention is to provide a kind of current limliting valve, to solve the problem that cannot form effectively control to the system of minimum flow existing in background technique.
Technological scheme of the present invention is: provide a kind of current limliting valve to comprise end cap, multiple pad, constrictor and shell, wherein, described pad is provided with the first through hole; The both sides of described constrictor are provided with vortex groove, and the vortex groove of described both sides is communicated with, and described pad is arranged on the both sides of described constrictor, and described vortex groove is communicated with described first through hole; Described shell is provided with holding cavity, and described pad and described constrictor are placed in described holding cavity, and the outside that described end cap is set in described shell is fixedly connected with, and pad described in axial compression and described constrictor.
Preferably, described vortex groove comprises two circular grooves and runner, described flow passage two circular grooves.
Preferably, described vortex groove is arranged in the bilateral symmetry of described constrictor.
Preferably, described first through hole is manhole, and is arranged on the center of described pad.
Preferably, described clamping piece is arranged between described end cap and described pad.
Preferably, described clamping piece is provided with loss of weight circular groove.
Preferably, described vortex groove forms the angle of 180 ° along the circumference of constrictor in the both sides of described constrictor.
Preferably, seal ring is provided with between described end cap and the fitting surface of shell.
Beneficial effect of the present invention: constrictor of the present invention is provided with vortex groove, and liquid forms eddy current after vortex groove, slowed down the flow velocity of liquid, according to flow control requirement, can arrange multiple constrictor.Reliability is high, without crossing small flow channels, not easily blocks; Performance is high, and compared with the current limliting valve of traditional orifice restriction principle, when cross section of fluid channel amasss suitable, performance can reach 10 times of traditional approach; Add list, do not need new process, user cost is low, good economy performance.
The both sides of each constrictor are provided with pad, vortex groove on constrictor is communicated with first through hole at pad center, the advantage that first through hole is arranged on the center of pad is: do not need the position considering vortex groove on it when installing constrictor, and convenient installation, performance is more stable.
Be provided with clamping piece between end cap and pad, be conducive to the better set current limiting sheet of end cap and pad.
Clamping piece is provided with loss of weight circular groove, the weight of clamping piece can be alleviated, and then alleviate the weight of whole current limliting valve.
Vortex groove forms the angle of 180 ° along the circumference of constrictor in the both sides of constrictor, can extend the runner of liquid, better solid line is to the control of flow.
Accompanying drawing explanation
Fig. 1 is the structural representation of current limliting valve of the present invention;
Fig. 2 is the decomposing schematic representation of the current limliting valve shown in Fig. 1;
Fig. 3 is the erection drawing of the current limliting valve shown in Fig. 1;
Fig. 4 is the schematic diagram of the constrictor of the current limliting valve shown in Fig. 1.
Wherein, 1-end cap, 2-clamping piece, 3-pad, 4-constrictor, 5-shell, 6-seal ring, 21-loss of weight circular groove, 41-vortex groove, 411-circular groove, 412-runner.
Embodiment
For making object of the invention process, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
As shown in Figures 1 to 4, a kind of current limliting valve, comprises end cap 1, multiple pad 3, constrictor 4 and shell 5, wherein, pad 3 is provided with the first through hole; The both sides of constrictor 4 are provided with vortex groove 41, and the vortex groove 41 of both sides is communicated with, and pad 3 is arranged on the both sides of constrictor 4, and vortex groove 41 is communicated with the first through hole; Shell 5 is provided with holding cavity, and pad 3 and constrictor 4 are placed in described holding cavity, and the outside that end cap 1 is set in shell 5 is fixedly connected with, and axial compression pad 3 and constrictor 4.
Be understandable that, the both sides of constrictor 4 are at least respectively provided with a pad 3, according to the control overflow to flow, can arrange multiple constrictor 4.
In the present embodiment, vortex groove 41 comprises two circular grooves 411 and runner 412, and runner 412 is communicated with two circular grooves 411.The position of two grooves 411 in the radial arrangement of constrictor 4, and is provided with groove through hole on the groove 411 of the outer rim near constrictor 4, and described groove through hole is for being communicated with the vortex groove 41 of constrictor 4 both sides.
In the present embodiment, vortex groove 41 is arranged in the bilateral symmetry of constrictor 4.Its advantage is easy to process.
Be understandable that, vortex groove 41 also can unsymmetrical arrangement in the both sides of constrictor 4.Such as, in an alternative embodiment, vortex groove 41 forms the angle of 180 ° along the circumference of constrictor 4 in the both sides of constrictor 4, wherein side is provided with circular arc runner, for being communicated with the vortex groove of both sides.Its advantage is: be symmetrical arranged the length that can increase circular arc runner, thus the better flow of confined liquid under identical cross section of fluid channel, in same time section.
First through hole is manhole, and is arranged on the center of pad 3.Its advantage is: do not need the position considering vortex groove 41 on it when installing constrictor 4, and convenient installation, performance is more stable.
The size of the first through hole is main determines according to requiring the difference of flow control, but in order to allow circulating liquid better form eddy current in vortex groove 41, the diameter of general first through hole should ensure that the first through hole can just be communicated with on constrictor 4 by paracentral groove 411.
In the present embodiment, also comprise clamping piece 2, clamping piece 2 is arranged between end cap 1 and pad 3.Be provided with clamping piece 2 between end cap 1 and pad 3, be conducive to end cap 1 better set current limiting sheet 4 and pad 3.
Clamping piece 2 is provided with loss of weight circular groove 21.Its advantage is: clamping piece 2 is provided with loss of weight circular groove 21, can alleviate the weight of clamping piece, and then alleviates the weight of whole current limliting valve.
Seal ring 6 is provided with between the fitting surface of end cap 1 and shell 5.Seal ring 6 can form more effective sealing to internal liquid.
Finally it is to be noted: above embodiment only in order to technological scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (8)
1. a current limliting valve, is characterized in that: comprise end cap (1), multiple pad (3), constrictor (4) and shell (5), wherein,
(3) are provided with the first through hole with described pad;
The both sides of described constrictor (4) are provided with vortex groove (41), and the vortex groove of both sides (41) is communicated with, described pad (3) is arranged on the both sides of described constrictor (4), and described vortex groove (41) is communicated with described first through hole;
Described shell (5) is provided with holding cavity, described pad (3) and described constrictor (4) are placed in described holding cavity, described end cap (1) is set in the outside of described shell (5) and is fixedly connected with, pad described in axial compression (3) and described constrictor (4).
2. current limliting valve as claimed in claim 1, it is characterized in that: described vortex groove (41) comprises two circular grooves (411) and runner (412), described runner (412) is communicated with two circular grooves (411).
3. current limliting valve as claimed in claim 1 or 2, is characterized in that: described vortex groove (41) is arranged in the bilateral symmetry of described constrictor (4).
4. current limliting valve as claimed in claim 3, is characterized in that: described first through hole is manhole, and is arranged on the center of described pad (3).
5. current limliting valve as claimed in claim 4, it is characterized in that: also comprise clamping piece (2), described clamping piece (2) is arranged between described end cap (1) and described pad (3).
6. current limliting valve as claimed in claim 5, is characterized in that: described clamping piece (2) is provided with loss of weight circular groove (21).
7. current limliting valve as claimed in claim 3, is characterized in that: described vortex groove (41) forms the angle of 180 ° along the circumference of constrictor (4) in the both sides of described constrictor (4).
8. current limliting valve as claimed in claim 1, is characterized in that: be provided with seal ring (6) between the fitting surface of described end cap (1) and shell (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833438.2A CN105422534A (en) | 2015-11-25 | 2015-11-25 | Flow limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833438.2A CN105422534A (en) | 2015-11-25 | 2015-11-25 | Flow limiting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422534A true CN105422534A (en) | 2016-03-23 |
Family
ID=55500991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510833438.2A Pending CN105422534A (en) | 2015-11-25 | 2015-11-25 | Flow limiting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422534A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864024A (en) * | 2019-11-04 | 2020-03-06 | 中航飞机起落架有限责任公司 | Oil discharge conversion valve and hydraulic retraction system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2916246A1 (en) * | 1979-04-21 | 1980-11-06 | Becker & Van Huellen | Fluid throttling device for reducing pressure impulses - has cylindrical chambers with end faces inclined to lengthwise axis formed in washers |
| US20060180215A1 (en) * | 2005-02-16 | 2006-08-17 | Fisher Controls International Llc | Pneumatic device having a selectively variable orifice |
| CN200968470Y (en) * | 2006-10-25 | 2007-10-31 | 保定天威集团有限公司 | Gas compression release valve |
| CN101566855A (en) * | 2008-04-21 | 2009-10-28 | Smc株式会社 | Throttling structure for use in a fluid pressure device |
| CN103256447A (en) * | 2013-06-06 | 2013-08-21 | 兰州理工大学 | Pipeline depressurization device |
| CN203223604U (en) * | 2013-03-12 | 2013-10-02 | 上海华理安全装备有限公司 | Serial connection and combination device between anti-backpressure creep-resistant rupture disc and fusible plug |
| CN203585697U (en) * | 2014-02-13 | 2014-05-07 | 山东联科新材料有限公司 | Restriction orifice assembly |
| CN104075069A (en) * | 2014-07-19 | 2014-10-01 | 李彩云 | Throttling orifice plate component |
| CN204042109U (en) * | 2014-09-04 | 2014-12-24 | 宜宾三江机械有限责任公司 | Non-maintaining type flow-limiting valve |
-
2015
- 2015-11-25 CN CN201510833438.2A patent/CN105422534A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2916246A1 (en) * | 1979-04-21 | 1980-11-06 | Becker & Van Huellen | Fluid throttling device for reducing pressure impulses - has cylindrical chambers with end faces inclined to lengthwise axis formed in washers |
| US20060180215A1 (en) * | 2005-02-16 | 2006-08-17 | Fisher Controls International Llc | Pneumatic device having a selectively variable orifice |
| CN200968470Y (en) * | 2006-10-25 | 2007-10-31 | 保定天威集团有限公司 | Gas compression release valve |
| CN101566855A (en) * | 2008-04-21 | 2009-10-28 | Smc株式会社 | Throttling structure for use in a fluid pressure device |
| CN203223604U (en) * | 2013-03-12 | 2013-10-02 | 上海华理安全装备有限公司 | Serial connection and combination device between anti-backpressure creep-resistant rupture disc and fusible plug |
| CN103256447A (en) * | 2013-06-06 | 2013-08-21 | 兰州理工大学 | Pipeline depressurization device |
| CN203585697U (en) * | 2014-02-13 | 2014-05-07 | 山东联科新材料有限公司 | Restriction orifice assembly |
| CN104075069A (en) * | 2014-07-19 | 2014-10-01 | 李彩云 | Throttling orifice plate component |
| CN204042109U (en) * | 2014-09-04 | 2014-12-24 | 宜宾三江机械有限责任公司 | Non-maintaining type flow-limiting valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864024A (en) * | 2019-11-04 | 2020-03-06 | 中航飞机起落架有限责任公司 | Oil discharge conversion valve and hydraulic retraction system |
| CN110864024B (en) * | 2019-11-04 | 2022-04-08 | 中航飞机起落架有限责任公司 | Oil discharge conversion valve and hydraulic retraction system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203297617U (en) | Sealing ring anti-disengaging seal structure and sealing ring groove thereof | |
| CN207649406U (en) | A kind of tubular type automobile water-cooling device | |
| CN105422534A (en) | Flow limiting valve | |
| CN202418609U (en) | Guiding and sealing valve for valve seat | |
| CN204239821U (en) | A kind of gasket mounted angle one-way valve | |
| CN203441916U (en) | Direction adjustable oil bolt assembly | |
| CN204717217U (en) | A kind of groove type pressure reducing orifice | |
| CN104452698B (en) | For the dynamic sluice gate structure in power station | |
| CN203477742U (en) | Speed reducing pipe | |
| CN206845959U (en) | Plug valve engineering plastics valve element | |
| CN204420398U (en) | The effective reducing of resistance to compression is directly managed | |
| CN204942681U (en) | A kind of valve with stiffening rib | |
| CN204083298U (en) | A kind of gate valve of detachable valve seat | |
| CN204805601U (en) | Ball valve | |
| CN204756021U (en) | Novel high temperature stop valve | |
| CN208348734U (en) | A kind of eccentric reducer | |
| CN203051757U (en) | Riveting type fabrication hole plug | |
| CN203880286U (en) | Labyrinth rubber tube core | |
| CN203670867U (en) | Valve | |
| CN203322628U (en) | L-shaped sealing plugging cap | |
| CN202708378U (en) | Pipe fitting | |
| CN105318043A (en) | Double-stop valve | |
| CN201696014U (en) | Efficient self-cleaning flow regulation device | |
| CN208686954U (en) | A kind of gasket | |
| CN204611021U (en) | A kind of equilibrium valve |
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 |
Application publication date: 20160323 |
|
| RJ01 | Rejection of invention patent application after publication |