CN106438548A - Throttle valve - Google Patents
Throttle valve Download PDFInfo
- Publication number
- CN106438548A CN106438548A CN201611091564.6A CN201611091564A CN106438548A CN 106438548 A CN106438548 A CN 106438548A CN 201611091564 A CN201611091564 A CN 201611091564A CN 106438548 A CN106438548 A CN 106438548A
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- CN
- China
- Prior art keywords
- aperture
- valve
- channel
- passage
- axial
- 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.)
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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
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sliding Valves (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a throttle valve, and belongs to the technical field of engineering machinery. The throttle valve comprises a valve body, wherein an axial fluid channel is formed inside the valve body; the fluid channel comprises a first channel section and a second channel section which are communicated together; a valve cavity for accommodating a valve core is formed between the first channel section and the second channel section; an axial channel which passes through two ends of the valve core is formed inside the valve core; three planes in axial symmetry are arranged on the outer wall of the valve core; a radial pore channel which is communicated with the axial channel is formed in each plane; the sum of apertures of three radial pore channels is greater than the aperture one any end of the axial channel; the aperture of one end of the axial channel is greater than that of the radial pore channel; the aperture of the other end of the axial channel is smaller than that of the radial pore channel. By adopting the throttle valve, the problems that a conventional throttle valve only has fixed flow and different inlet/outlet oil flows (speeds) cannot be adjusted can be solved.
Description
Technical field
The present invention relates to construction machinery production technical field, especially a kind of throttling for construction machinery hydraulic system
Valve.
Background technology
Choke valve is widely used in engineering machinery hydraulic control field, and it passes through to change throttling section or chock length is controlled
The valve of fluid flow processed, a kind of choke valve as shown in Figure 1, including valve body 01, in valve body 01, it is provided with fluid passage, stream
Body passage includes first passage segmentation a and second channel segmentation b, and the aperture of first passage segmentation a is less than second channel segmentation b's
Aperture.During work, fluid flows into first passage segmentation a from second channel segmentation b and is throttled, but this choke valve exists：
Because its valve port orifice size is fixing, either still all can only be led to firm discharge on fuel-displaced oil circuit in oil-feed oil circuit
Stream is it is impossible to realize to into and out of oily flow（Speed）Different adjustment problem.
Content of the invention
The technical problem to be solved is to provide a kind of choke valve, and this choke valve only can solve existing choke valve
Can with firm discharge through-flow it is impossible to realize to into and out of oily flow（Speed）Different adjustment problem.
In order to solve the above problems, the technical solution adopted in the present invention is：This choke valve, including valve body, valve is originally
It is provided with fluid passage in vivo, fluid passage includes first passage segmentation and the second channel segmentation axially communicating, described first leads to
It is provided with the valve pocket of accommodating valve element, the axial direction offering its two ends of insertion in described valve element is led between road segmentation and second channel segmentation
Road, the outer wall of described valve element is provided with axially symmetric three plane, each described plane all offers and leads to described axial direction
The radial direction duct of road connection；The aperture sum in 3 described radial direction ducts is more than the aperture of described axial passage either end, described
The aperture of axial passage wherein one end is more than the aperture in described radial direction duct, and the aperture of the described axial passage other end is less than described
The aperture in radial direction duct.
In technique scheme, more specifically technical scheme can also be：Described radial direction duct angle each other is
120°.
Due to employing technique scheme, the present invention compared with prior art has the advantages that：
1st, due to being provided with the valve pocket of accommodating valve element between described first passage segmentation and second channel segmentation, offer in valve element and pass through
Lead to the axial passage at its two ends, the outer wall of valve element is provided with axially symmetric three plane, each plane all offers and axle
Radial direction duct to channel connection；And, the aperture sum in 3 radial direction ducts is more than the aperture of axial passage either end, axially
The aperture of passage wherein one end is more than the aperture in radial direction duct, and the aperture of the axial passage other end is less than the aperture in radial direction duct.
So, when this choke valve is connected with hose coupling；First, when pressure oil from the first passage segmentation of valve body the axial direction through valve element
Passage wherein one end flows into, and in the presence of pressure oil, valve element is pushed into and is close to close the end of hose coupling by fluid, blocks
Three radial direction ducts are communicated with hose coupling inner chamber, and fluid can only flow into hose coupling inner chamber from the axial passage other end,
Now, because the aperture that this axial passage flows into end is more than the aperture flowing out the other end, therefore, choke valve acts primarily as throttling action
Area of passage for axial passage flow out the other end aperture.Secondly, when pressure oil from the second channel segmentation of valve body through valve
The axial passage other end of core flows into, and in the presence of pressure oil, valve element is pushed into the end of valve pocket by fluid, opens three footpaths
Oil duct to duct and hose coupling inner chamber；Aperture due to radial direction duct is more than the aperture that this axial passage flows into end, fluid
Select shortcut to walk restriction effect inapparent radial direction duct, then flow out from axial passage one end.Now, due to 3 radial direction ducts
Aperture sum flow out the aperture of one end more than axial passage, therefore, the area of passage that choke valve acts primarily as throttling action is axle
Flow out the aperture of one end to passage.Achieve to into and out of oily flow（Speed）Different adjustment.
2nd, due to offering the axial passage at its two ends of insertion in valve element；And the aperture of axial passage one end is more than axially
The aperture of the passage other end, valve element two ends orientation interchangeable when mounted, not only may be implemented in into and out of different flow on oil circuit
（Speed）Regulation, can also neatly realize the inlet throttle speed governing of oil circuit and the switching of outlet throttle timing function, adaptation
The specific demand of different user.
Brief description
Fig. 1 is the structural representation of existing choke valve.
Fig. 2 is the structural representation of the embodiment of the present invention.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the structural representation of embodiment of the present invention valve element.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is that when the embodiment of the present invention uses, liquid enters fashionable schematic diagram from choke valve wherein one end.
Fig. 7 is that when the embodiment of the present invention uses, liquid enters fashionable schematic diagram from the choke valve other end.
Specific embodiment
The invention will be further described for embodiment below in conjunction with the accompanying drawings：
Choke valve shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, including valve body 1, is provided with fluid passage, fluid passage is wrapped in valve body 1
Include first passage segmentation L1 that is axially arranged and communicating and second channel segmentation L2, first passage segmentation L1 and second channel segmentation
It is provided with the valve pocket of accommodating valve element 2 between L2, in valve element 2, offers the axial passage at its two ends of insertion, the outer wall of valve element 2 is provided with
Three axially symmetric planes, each plane are equipped with the radial direction duct T3 being connected with axial passage, T3 is mutual in radial direction duct
Between angle be 120 °；The aperture sum of 3 radial direction duct T3 is more than the aperture of axial passage either end, and axial passage is wherein
The aperture of one end T1 is more than the aperture of radial direction duct T3, and the aperture of axial passage other end T2 is less than the aperture of radial direction duct T3.
As shown in fig. 6, pressure oil from the first passage segmentation L1 of valve body 1 the axial passage wherein one end T1 through valve element 2
Flow into, in the presence of pressure oil, valve element 2 is pushed into and is close to close the end of hose coupling 3 by fluid, blocks three radial directions
Duct T3 is communicated with hose coupling 3 inner chamber, and fluid can only flow into hose coupling 3 inner chamber from axial passage other end T2, now,
Because the aperture that axial passage flows into end T1 is more than the aperture of axial passage outflow end T2, therefore, choke valve acts primarily as throttling and makees
Area of passage is the aperture of axial passage outflow end T2.
As shown in fig. 7, pressure oil is from the second channel segmentation L2 of valve body 1, and the axial passage other end T2 through valve element 2 flows
Enter, in the presence of pressure oil, valve element 2 is pushed into the end of valve pocket by fluid, now, three radial direction duct T3 and hose coupling
3 inner chambers communicate；Aperture due to radial direction duct T3 is more than the aperture that this axial passage flows into end T2, and fluid selects shortcut, walks section
Stream effect inapparent radial direction duct T3, then flow out from axial passage one end T1.Now, due to the aperture of 3 radial direction duct T3
Sum is more than the aperture of axial passage outflow end T1, and therefore, the area of passage that choke valve acts primarily as throttling action is that this axial direction is led to
The aperture of road outflow end T1.Achieve to into and out of oily flow（Speed）Different adjustment.
Meanwhile, when mounted, valve element two ends orientation interchangeable, when exchanging two ends orientation installation valve element, this choke valve master
The passage of throttling action to be risen also and then is exchanged, and not only may be implemented in into and out of different flow on oil circuit（Speed）Regulation, also
The inlet throttle speed governing of oil circuit and the special need of the switching of outlet throttle timing function, adaptation different user can neatly be realized
Ask.
Claims (2)
1. a kind of choke valve, including valve body（1）, valve body（1）Inside it is provided with fluid passage, fluid passage includes what axial direction communicated
First passage segmentation（L1）With second channel segmentation（L2）It is characterised in that：Described first passage segmentation（L1）And second channel
Segmentation（L2）Between be provided with accommodating valve element（2）Valve pocket, described valve element（2）Inside offer the axial passage at its two ends of insertion, institute
State valve element（2）Outer wall be provided with axially symmetric three plane, each described plane all offers and described axial passage
The radial direction duct of connection（T3）；3 described radial direction ducts（T3）Aperture sum be more than described axial passage either end hole
Footpath, the aperture of described axial passage wherein one end is more than described radial direction duct（T3）Aperture, the described axial passage other end
Aperture is less than described radial direction duct（T3）Aperture.
2. choke valve according to claim 1 it is characterised in that：Described radial direction duct（T3）Angle each other is
120°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091564.6A CN106438548B (en) | 2016-12-01 | 2016-12-01 | Throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091564.6A CN106438548B (en) | 2016-12-01 | 2016-12-01 | Throttle valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438548A true CN106438548A (en) | 2017-02-22 |
| CN106438548B CN106438548B (en) | 2018-06-15 |
Family
ID=58223467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611091564.6A Active CN106438548B (en) | 2016-12-01 | 2016-12-01 | Throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438548B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1540173A (en) * | 2003-10-30 | 2004-10-27 | 浙江大学 | Quiet type throttling grooves in hydraulic component |
| DE102004029749A1 (en) * | 2004-06-19 | 2006-01-12 | Bosch Rexroth Aktiengesellschaft | Rotary slide control valve manufacturing method for hydraulic steering gear, involves partially forming counter surfaces on each axial throttle slot in control piston, where counter surfaces have convex or stepped structure |
| CN2898402Y (en) * | 2006-03-16 | 2007-05-09 | 中国人民解放军63983部队 | Two-way throttling valve |
| CN201896807U (en) * | 2010-11-30 | 2011-07-13 | 烟台海德专用汽车有限公司 | Fixed damping bilateral double-speed throttling valve |
| CN203614899U (en) * | 2013-10-23 | 2014-05-28 | 宁波明启液压机械有限公司 | Two-way throttle valve |
| CN203702707U (en) * | 2013-08-29 | 2014-07-09 | 哈尔滨电机厂有限责任公司 | Mechanical sliding type one-way throttling device adopting hydraulic adjustment and used for servomotor |
| CN204226317U (en) * | 2014-09-15 | 2015-03-25 | 徐州徐工液压件有限公司 | A kind of combined type restriction |
| US20160177978A1 (en) * | 2014-12-23 | 2016-06-23 | Hitachi Construction Machinery Co., Ltd. | Throttle valve |
| CN106122147A (en) * | 2016-07-25 | 2016-11-16 | 南京南瑞集团公司 | A kind of main control valve throttling window valve pocket |
-
2016
- 2016-12-01 CN CN201611091564.6A patent/CN106438548B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1540173A (en) * | 2003-10-30 | 2004-10-27 | 浙江大学 | Quiet type throttling grooves in hydraulic component |
| DE102004029749A1 (en) * | 2004-06-19 | 2006-01-12 | Bosch Rexroth Aktiengesellschaft | Rotary slide control valve manufacturing method for hydraulic steering gear, involves partially forming counter surfaces on each axial throttle slot in control piston, where counter surfaces have convex or stepped structure |
| CN2898402Y (en) * | 2006-03-16 | 2007-05-09 | 中国人民解放军63983部队 | Two-way throttling valve |
| CN201896807U (en) * | 2010-11-30 | 2011-07-13 | 烟台海德专用汽车有限公司 | Fixed damping bilateral double-speed throttling valve |
| CN203702707U (en) * | 2013-08-29 | 2014-07-09 | 哈尔滨电机厂有限责任公司 | Mechanical sliding type one-way throttling device adopting hydraulic adjustment and used for servomotor |
| CN203614899U (en) * | 2013-10-23 | 2014-05-28 | 宁波明启液压机械有限公司 | Two-way throttle valve |
| CN204226317U (en) * | 2014-09-15 | 2015-03-25 | 徐州徐工液压件有限公司 | A kind of combined type restriction |
| US20160177978A1 (en) * | 2014-12-23 | 2016-06-23 | Hitachi Construction Machinery Co., Ltd. | Throttle valve |
| CN106122147A (en) * | 2016-07-25 | 2016-11-16 | 南京南瑞集团公司 | A kind of main control valve throttling window valve pocket |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438548B (en) | 2018-06-15 |
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