Control valve
阅读说明:本技术 控制阀 (Control valve ) 是由 吴盈志 李志鹏 张启明 侯云 张红涛 李琳琳 卓靳露 郭宁 毛华华 刘建军 于 2019-11-28 设计创作,主要内容包括:本发明提供了一种控制阀,能够解决现有技术中使用永磁体的阀门所存在的制造难度高的问题。控制阀包括:阀体、阀芯,阀芯上设置有第一永磁单元和第二永磁单元,两永磁单元朝向彼此的磁极极性相同;第一永磁单元和第二永磁单元均布置在阀芯的远离阀口的一侧,第二永磁单元布置在第一永磁单元靠近阀口的一侧,两永磁单元之间设有供两者相对活动的间隔,其中:第一永磁单元与阀芯沿阀芯活动方向导向配合,控制阀中设置有顶撑体,顶撑体处于第一永磁单元背向第二永磁单元一侧,用于顶撑第一永磁单元;第二永磁单元固定在阀芯上,随阀芯同步动作;或者,第二永磁单元在斥力作用下顶压在阀芯上,通过斥力带动阀芯动作。(The invention provides a control valve which can solve the problem that a valve using a permanent magnet in the prior art is high in manufacturing difficulty. The control valve includes: the valve comprises a valve body and a valve core, wherein a first permanent magnet unit and a second permanent magnet unit are arranged on the valve core, and the polarities of the magnetic poles of the two permanent magnet units facing each other are the same; first permanent magnetism unit and second permanent magnetism unit equipartition are arranged in one side of keeping away from the valve port of case, and second permanent magnetism unit is arranged in one side that first permanent magnetism unit is close to the valve port, is equipped with the interval that supplies both relative activities between two permanent magnetism units, wherein: the first permanent magnet unit is in guiding fit with the valve core along the moving direction of the valve core, and a jacking body is arranged in the control valve and is positioned on one side, back to the second permanent magnet unit, of the first permanent magnet unit and used for jacking the first permanent magnet unit; the second permanent magnet unit is fixed on the valve core and synchronously acts with the valve core; or the second permanent magnet unit is pressed on the valve core under the action of the repulsive force, and the valve core is driven to act through the repulsive force.)
1. A control valve characterized by: comprises that
The valve body is internally provided with a valve port;
the valve core is arranged in the valve body in a guiding manner and is used for plugging or opening the valve port;
the valve core is provided with a first permanent magnet unit and a second permanent magnet unit, and the polarities of the magnetic poles of the two permanent magnet units facing each other are the same; first permanent magnetism unit and second permanent magnetism unit equipartition are arranged in one side of keeping away from the valve port of case, and second permanent magnetism unit is arranged in one side that first permanent magnetism unit is close to the valve port, is equipped with the interval that supplies both relative activities between two permanent magnetism units, wherein:
the first permanent magnet unit is in guiding fit with the valve core along the moving direction of the valve core, and a jacking body is arranged in the control valve and is positioned on one side, back to the second permanent magnet unit, of the first permanent magnet unit and used for jacking the first permanent magnet unit;
the second permanent magnet unit is fixed on the valve core and synchronously acts with the valve core; or the second permanent magnet unit is pressed on the valve core under the action of the repulsive force, and the valve core is driven to act through the repulsive force.
2. The control valve of claim 1, wherein: one side of the valve core, which is back to the valve port, is provided with a sleeve extending back to the valve port, and the first permanent magnet unit and the second permanent magnet unit are installed in the sleeve in a guiding manner.
3. The control valve of claim 2, wherein: the first permanent magnet unit comprises a first permanent magnet and a first bearing seat, wherein a mounting groove is formed in the first bearing seat, and the first permanent magnet is arranged in the mounting groove.
4. The control valve of claim 3, wherein: a guide pin is arranged on the peripheral surface of the first bearing seat and extends along the direction vertical to the moving direction of the valve core; the wall of the sleeve is provided with a guide groove matched with the guide pin in a guide way, and the first permanent magnet unit is matched with the valve core in a guide way through the guide pin and the guide groove.
5. The control valve of claim 4, wherein: the section of the guide pin is in an oblong shape; the peripheral surface of the guide pin comprises cambered surfaces arranged at two opposite sides and a guide plane connected between the two cambered surfaces; the guide pin is matched with the groove wall of the guide groove in a guiding mode through the guide plane.
6. The control valve of claim 2, wherein: the second permanent magnet unit comprises a second permanent magnet and a second bearing seat, wherein the second bearing seat is provided with a mounting groove, and the second permanent magnet is arranged in the mounting groove.
7. The control valve of claim 6, wherein: a guide pin is arranged on the peripheral surface of the second bearing seat and extends along the direction vertical to the moving direction of the valve core; the wall of the sleeve is provided with a guide groove matched with the guide pin in a guide way, and the second permanent magnet unit is matched with the valve core in a guide way through the guide pin and the guide groove.
8. The control valve of claim 7, wherein: the section of the guide pin is in an oblong shape; the peripheral surface of the guide pin comprises cambered surfaces arranged at two opposite sides and a guide plane connected between the two cambered surfaces; the guide pin is matched with the groove wall of the guide groove in a guiding mode through the guide plane.
9. The control valve according to any one of claims 1 to 8, wherein: the control valve comprises an adjusting nut, the adjusting nut is in threaded connection with the valve body and used for plugging a mounting port for mounting the valve core so as to form a valve cavity of the control valve; the jacking body is arranged on the side face, facing the first permanent magnet unit, of the adjusting nut.
10. The control valve of claim 9, wherein: the top bracing body comprises a hollow rod, a cone which faces towards the inner cavity of the hollow rod and is matched with the top bracing of the hollow rod is arranged in the first permanent magnet unit, and the first permanent magnet unit is matched with the top bracing of the hollow rod through the cone.
Technical Field
The present invention relates to a control valve.
Background
Disclosure of Invention
The invention aims to provide a control valve which can solve the problem that a valve using a permanent magnet in the prior art is high in manufacturing difficulty.
In order to achieve the purpose, the control valve adopts the following technical scheme:
a control valve, comprising:
the valve body is internally provided with a valve port;
the valve core is arranged in the valve body in a guiding manner and is used for plugging or opening the valve port;
the valve core is provided with a first permanent magnet unit and a second permanent magnet unit, and the polarities of the magnetic poles of the two permanent magnet units facing each other are the same; first permanent magnetism unit and second permanent magnetism unit equipartition are arranged in one side of keeping away from the valve port of case, and second permanent magnetism unit is arranged in one side that first permanent magnetism unit is close to the valve port, is equipped with the interval that supplies both relative activities between two permanent magnetism units, wherein:
the first permanent magnet unit is in guiding fit with the valve core along the moving direction of the valve core, and a jacking body is arranged in the control valve and is positioned on one side, back to the second permanent magnet unit, of the first permanent magnet unit and used for jacking the first permanent magnet unit;
the second permanent magnet unit is fixed on the valve core and synchronously acts with the valve core; or the second permanent magnet unit is pressed on the valve core under the action of the repulsive force, and the valve core is driven to act through the repulsive force.
The beneficial effects are that: the valve core in the control valve can be in guide fit with the first permanent magnet unit, the valve core in guide fit with the valve body is used as a carrier, the valve body and the original guide structure of the valve core are utilized to ensure that the first permanent magnet unit can also be in guide fit with the valve body, the complex guide structure is not required to be processed in the valve body, an operator only needs to ensure the fit relation between the permanent magnet unit and the valve core, and the processing requirement of the valve body is reduced.
Furthermore, one side of the valve core, which is back to the valve port, is provided with a sleeve extending back to the valve port, and the first permanent magnet unit and the second permanent magnet unit are installed in the sleeve in a guiding manner.
The beneficial effects are that: the sleeve is processed on the valve core, the first permanent magnet unit and the second permanent magnet unit are accommodated in the inner cavity of the sleeve, and the same proportion of the sleeve is utilized to be matched with the first permanent magnet unit and the second permanent magnet unit in a guiding mode, so that the valve core is simple in structure and convenient to process and produce by operators while the function of the valve core is achieved.
Furthermore, first permanent magnet unit includes first permanent magnet and the first seat that bears, is equipped with the mounting groove on the first seat that bears, and first permanent magnet setting is in the mounting groove.
The beneficial effects are that: set up and bear the seat and come to support the supporter, operating personnel only need guarantee to bear seat and telescopic guide relation when the assembly, just can guarantee that first permanent magnet can possess regular movement track, and operating personnel can come to design the structure that bears the seat according to different work condition, and is more nimble.
Furthermore, a guide pin is arranged on the peripheral surface of the first bearing seat, and the guide pin extends along the direction vertical to the moving direction of the valve core; the wall of the sleeve is provided with a guide groove matched with the guide pin in a guide way, and the first permanent magnet unit is matched with the valve core in a guide way through the guide pin and the guide groove.
The beneficial effects are that: the guide pin and the guide groove are matched to realize the guide matching of the permanent magnet unit and the sleeve, the structure is simple, and the processing is convenient.
Further, the cross section of the guide pin is in an oblong shape; the peripheral surface of the guide pin comprises cambered surfaces arranged at two opposite sides and a guide plane connected between the two cambered surfaces; the guide pin is matched with the groove wall of the guide groove in a guiding mode through the guide plane.
The beneficial effects are that: the arc in the guide pin outer peripheral face can avoid guide pin and guide slot jamming when the motion, and the guide plane can guarantee guide pin and guide slot face contact.
Furthermore, the second permanent magnet unit comprises a second permanent magnet and a second bearing seat, wherein the second bearing seat is provided with a mounting groove, and the second permanent magnet is arranged in the mounting groove.
The beneficial effects are that: set up and bear the seat and come to support the supporter, operating personnel only need guarantee to bear seat and telescopic guide relation when the assembly, just can guarantee that first permanent magnet can possess regular movement track, and operating personnel can come to design the structure that bears the seat according to different work condition, and is more nimble.
Furthermore, a guide pin is arranged on the peripheral surface of the second bearing seat, and the guide pin extends along the direction vertical to the moving direction of the valve core; the wall of the sleeve is provided with a guide groove matched with the guide pin in a guide way, and the second permanent magnet unit is matched with the valve core in a guide way through the guide pin and the guide groove.
The beneficial effects are that: the guide pin and the guide groove are matched to realize the guide matching of the permanent magnet unit and the sleeve, the structure is simple, and the processing is convenient.
Further, the cross section of the guide pin is in an oblong shape; the peripheral surface of the guide pin comprises cambered surfaces arranged at two opposite sides and a guide plane connected between the two cambered surfaces; the guide pin is matched with the groove wall of the guide groove in a guiding mode through the guide plane.
The beneficial effects are that: the arc in the guide pin outer peripheral face can avoid guide pin and guide slot jamming when the motion, and the guide plane can guarantee guide pin and guide slot face contact.
Furthermore, the control valve comprises an adjusting nut which is in threaded connection with the valve body and used for plugging a mounting port for mounting the valve core so as to form a valve cavity of the control valve; the jacking body is arranged on the side face, facing the first permanent magnet unit, of the adjusting nut.
The beneficial effects are that: the top support body is arranged on the adjusting nut, the adjusting nut is adjustable in position through threads and the valve body, the top support body can be changed relative to the position of the first permanent magnet unit by screwing the adjusting nut by an operator, the interval for relative movement between the first permanent magnet unit and the second permanent magnet unit is conveniently adjusted through the top support of the first permanent magnet unit, and therefore the repulsive force between the two permanent magnet units is changed.
Further, the shoring body includes hollow rod, be equipped with in the first permanent magnetism unit towards hollow rod inner chamber and with hollow rod shore complex cone, first permanent magnetism unit passes through cone and hollow rod shore cooperation.
The beneficial effects are that: set up hollow pole and come to cooperate with the cone, realize hollow pole cooperation through the outer peripheral face of cone, realize the centering of first permanent magnetism unit and arrange.
Drawings
FIG. 1 is a cross-sectional view of a control valve according to embodiment 1 of the control valve of the present invention;
FIG. 2 is a schematic structural diagram of a valve core in embodiment 1 of the control valve of the invention;
FIG. 3 is a schematic structural diagram of a first carrier in embodiment 1 of the control valve of the present invention;
in the figure:
10-a valve body; 101-a liquid inlet channel; 102-a liquid outlet channel; 103-valve port;
11-a valve core; 111-a guide slot; 112-a housing cavity;
12-a first permanent magnet unit; 121-a first bearing seat; 122-a first permanent magnet; 123-a first guide pin; 124-cone; 125-mounting grooves;
13-a second permanent magnet unit; 131-a second bearing seat; 132-a second permanent magnet; 133-a second guide pin;
14-a seal; 15-pressing a ring;
16-adjusting the screw cap; 161-hollow bar.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the valve of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the control valve of the present invention: the control valve is used in a hydraulic system, belongs to a normally closed mechanical valve, and drives a valve core to seat on a valve port through repulsive force between permanent magnets so as to keep the valve in a normally closed state. When the inlet pressure is larger than the repulsion force between the permanent magnets, the valve core is pushed to be opened and leaves the valve port, so that the fluid flows from the inlet to the outlet, and the repulsion force of the permanent magnets replaces a common spring in the prior art.
As shown in fig. 1, the control valve includes a
A
The radial dimension of the
As shown in fig. 2 and 3, two permanent magnet units, namely, a first
The first
The second
On the outer circumferential surface of the sleeve, a
In the sunken groove that sets up downwards of
An adjusting
When the operator assembles the control valve of the present invention:
the first
The
Then, the
Finally, the adjusting
The first
The control valve of the invention uses the repulsion force between the permanent magnets to replace the elastic force generated by the elastic element, and can be applied to direction control valves in air pressure or hydraulic systems, such as one-way valves, reversing valves and the like, pressure control valves, such as overflow valves, pressure reducing valves, sequence valves and the like, and flow control valves, such as throttle valves, speed regulating valves and the like.
Embodiment 2 of the control valve of the present invention: the difference with the above embodiment is that the structure of the valve core in this embodiment for guiding and matching with the first permanent magnet unit adopts a guide post, specifically, a guide post extending along the axial direction of the valve core is arranged on one side of the valve core, which is away from the valve port, the first permanent magnet unit is sleeved on the guide post, and the movement of the first permanent magnet unit is guided by the cylindrical surface of the guide post, at this time, the second permanent magnet unit can be fixed on the valve core, and also can be sleeved on the guide post.
Embodiment 3 of the control valve of the present invention: the difference from the above embodiments is that in this embodiment, the second permanent magnet unit is fixed on the valve core, for example, when the bearing seat of the second permanent magnet unit is directly welded on the valve core, the second permanent magnet unit directly acts with the valve core.
Embodiment 4 of the control valve of the present invention: the difference with the above embodiment is that in this embodiment, the first permanent magnet unit is only composed of a permanent magnet, and is not provided with a bearing seat, the permanent magnet is directly placed in the sleeve, or the bearing seat is provided with a track, and the valve core is provided with a slide block matched with the track.
Embodiment 5 of the control valve of the present invention: the difference with the above embodiment is that in this embodiment, the second permanent magnet unit is only composed of a permanent magnet, and is not provided with a bearing seat, the permanent magnet is directly placed in the sleeve, or the bearing seat is provided with a track, and the valve core is provided with a slide block matched with the track.
Example 6 of the control valve of the present invention: the difference from the above embodiments is that the guide pin on the first bearing seat in this embodiment is in a cylindrical structure, and the guide pin and the guide groove are in line contact, and the embodiment is not limited to the solution that the cross section is in an oval shape.
Embodiment 7 of the control valve of the present invention: the difference from the above embodiments is that the guide pin on the second bearing seat in this embodiment is in a cylindrical structure, and the guide pin and the guide groove are in line contact, and the solution is not limited to the solution with an oval cross section.
Embodiment 8 of the control valve of the present invention: the difference from the above embodiment is that the supporting body is a solid rod in this embodiment, and the first permanent magnet unit is not provided with a cone adapted to the hollow rod, but directly pushes the first permanent magnet unit by using the solid rod.
Embodiment 9 of the control valve of the present invention: the difference with the above embodiment is that the valve body is not provided with an adjusting nut any more, and the position of the supporting body is fixed.
The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
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