CN105526203B - Band transmission axle elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves - Google Patents
Band transmission axle elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves Download PDFInfo
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- CN105526203B CN105526203B CN201610048119.5A CN201610048119A CN105526203B CN 105526203 B CN105526203 B CN 105526203B CN 201610048119 A CN201610048119 A CN 201610048119A CN 105526203 B CN105526203 B CN 105526203B
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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
- 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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- Physics & Mathematics (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
Abstract
Coupling type semibridge system 2D electro-hydraulic proportion reversing valves are turned round the invention discloses a kind of band transmission axle elasticity pressure, including reversal valve, rotational rate electromagnet and pressure turn round shaft coupling；Pressure, which turns round shaft coupling, includes first connecting portion, second connecting portion, the first elastic helix part, the second elastic helix part and transmission axle；First connecting portion, second connecting portion, the first elastic helix part, the second elastic helix part and transmission axle are integrated.The beneficial effects of enforcing the present invention are：The 2D electro-hydraulic proportion reversing valves turn round the structure of shaft coupling using pressure, when rotational rate electromagnet is obtained it is electric when, the rotary motion of rotor can pass to valve element by the first elastic helix part, the second elastic helix part and transmission axle simultaneously, it has without friction transmission, flexible, the advantages of dynamic response is good, small volume and process and assemble are easy.
Description
Technical field
The present invention relates to electro-hydraulic proportional control system field, passed more specifically to a kind of band applied to shield machine
Pass axle elasticity pressure and turn round coupling type semibridge system 2D electro-hydraulic proportion reversing valves.
Background technology
Electro-hydraulic proportional valve is adoption rate control technology, a kind of liquid between switch type hydraulic valve and electrohydraulic servo valve
Press element.Because electro-hydraulic proportional valve can be combined with electronic-controlled installation, thus it is easy to transport various inputs, output signal
Calculation is handled, to realize the control function of complexity.Meanwhile, electro-hydraulic proportional valve has antipollution, low cost and fast response time etc. excellent
Point, is obtained a wide range of applications in the industrial production.
Existing electro-hydraulic proportion reversing valve typically can be using Direct Action Type and the design for leading two kinds of structures of control type.Direct Action Type
Electro-hydraulic proportion reversing valve directly drives valve element motion by rotational rate electromagnet, and its is simple in construction, and can be in work under zero pressure
Make, but big flow control can not be realized due to being limited by rotational rate electromagnet thrust output.Lead the commutation of control type electric-hydraulic proportion
Valve produces larger hydraulic static pressure-driven main valve plug motion by the pressure change of pilot valve control bound sensitive cavity, it is possible to achieve
Big flow is controlled, but its is complicated.
The content of the invention
The technical problem to be solved in the present invention is, for prior art drawbacks described above there is provided a kind of high-pressure high-flow,
And a kind of band transmission axle elasticity pressure of volume compact turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of band transmission axle elasticity pressure and turn round shaft coupling
Type semibridge system 2D electro-hydraulic proportion reversing valves, including reversal valve and rotational rate electromagnet；The reversal valve includes valve body, and
Valve element in the valve body；The rotational rate electromagnet includes housing, and the rotor in the housing；
The pressure that the 2D electro-hydraulic proportion reversing valves also include being used to connect the reversal valve and the rotational rate electromagnet turns round shaft coupling；
The pressure turn round the first connecting portion that shaft coupling includes being fixedly connected with the valve element, with the rotor is fixedly connected second is connected
Portion, the first elastic helix part being connected between the first connecting portion and the second connecting portion and the second elastic helix part,
And transmission axle；The valve element, the first connecting portion, the second connecting portion, the transmission axle, and the rotor are same
Axle is set；The first connecting portion, the second connecting portion, the first elastic helix part, the second elastic helix part with
And the transmission axle is integrated；
The first connecting portion is external diameter identical cylinder with the second connecting portion；The first elastic helix part with
The rotation direction of the second elastic helix part is identical, and the first elastic helix part and the second elastic helix part are respectively in institute
The projection stated on the same end face of first connecting portion is separated from each other；The first connecting portion axially offers first through hole, described
Second connecting portion axially offers the second through hole, and the transmission axle is located in the first through hole and second through hole；Institute
The one end and the valve element gap for stating transmission axle coordinate, and the other end of the transmission axle is interference fitted with the rotor；
When the rotor rotational movement with when driving the second connecting portion to rotate, the first elastic helix part with it is described
Second elastic helix part produces relative torsion to drive the first connecting portion rotary motion.
It is described to pass in band transmission axle of the present invention elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves
Axle is passed in six prism structures.
In band transmission axle of the present invention elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves, the 2D
Electro-hydraulic proportion reversing valve also includes being sleeved on the sleeve outside the pressure torsion shaft coupling；One end of the sleeve is consolidated with the valve body
Fixed connection, the other end of the sleeve is connected with the housing.
In band transmission axle of the present invention elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves, the set
Cylinder is square hollow structure.
In band transmission axle of the present invention elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves, described the
One elastic helix part and the second elastic helix part are identical structure, and reverse symmetry is set, and its mathematical modeling is as follows：
X=φ r
L=ψ r
Wherein：
φ:First elastic helix part or the corresponding central angle of the second elastic helix part end on projection；
r：First elastic helix part or the corresponding radius of the second elastic helix part end on projection；
ψ：The corresponding central angle of any one section of conveyor screw end on projection on first elastic helix part or the second elastic helix part；
x：The corresponding arc length of central angle φ；
l：The corresponding arc length of central angle ψ；
θ：The angle that section is turned at first elastic helix part, the second elastic helix part x；
w：Amount of deflection at first elastic helix part, the second elastic helix part x；
δ：The dislocation distance of first elastic helix part and the second elastic helix part.
The band transmission axle elasticity pressure for implementing the present invention turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves, has with following
Beneficial effect：The 2D electro-hydraulic proportion reversing valves turn round the structure of shaft coupling using the pressure with transmission axle, when rotational rate electromagnet is obtained
On the one hand electricity, the rotary motion of rotor makes Spool rotating by transmission axle, on the other hand passes through the first elastic helix part and second
Elastic helix part makes Spool rotating, and valve element two ends pressure difference moves valve element, and the first elastic helix part and the second elastic helix part are produced
Raw axile displacement distance will produce certain reset torque, first connecting portion is rotated back to initial angle, balance is reached again；Again
Person, turning round shaft coupling using the pressure with transmission axle has without friction transmission, flexible, and dynamic response is good, small volume and process and assemble
Easy the advantages of.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is that the band transmission axle elasticity pressure torsion coupling type semibridge system 2D electric-hydraulic proportions that present pre-ferred embodiments are provided are changed
To the internal structure schematic diagram of valve；
Fig. 2 is the A portions enlarged drawing in Fig. 1；
Fig. 3 is that the pressure in the 2D electro-hydraulic proportion reversing valves shown in Fig. 1 turns round the structure that shaft coupling is connected with valve element, rotor respectively
Figure；
Fig. 4 is the structure chart for pressing torsion shaft coupling in the 2D electro-hydraulic proportion reversing valves shown in Fig. 1；
Fig. 5 is the structure chart pressed after torsion shaft coupling removal transmission axle in the 2D electro-hydraulic proportion reversing valves shown in Fig. 1；
Fig. 6 is the first elastic helix part and the second elastic helix part in the 2D electro-hydraulic proportion reversing valves shown in Fig. 1
Degree of disturbing sketch.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now compare accompanying drawing and describe in detail
The embodiment of the present invention.In the description of the invention, it is to be understood that term " first ", " second ", " left end ",
" right-hand member " etc. is only used for describing purpose, and it is not intended that indicating or implying relative importance.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, presently preferred embodiments of the present invention provides a kind of band transmission axle elasticity pressure
Turn round coupling type semibridge system 2D electro-hydraulic proportion reversing valves, it include reversal valve 1, rotational rate electromagnet 2, pressure torsion shaft coupling 3 with
And sleeve 4.
Specifically, as shown in Figure 1, Figure 2 and shown in Fig. 3, the reversal valve 1 includes valve body 11, and in valve body 11
Valve element 12.The rotational rate electromagnet 2 includes housing 21, and the rotor 22 in housing 21.Reversal valve 1 and speed ratio
Example electromagnet 2 is structure common in the art, be will not be repeated here.
If Fig. 3, Fig. 4, Fig. 5 are simultaneously as shown in fig.1, pressure torsion shaft coupling 3 is used for the rotor in rotational rate electromagnet 2
22 rotation is changed into the rotary motion of the valve element 12 in reversal valve 1.Pressure is turned round shaft coupling 3 and connected including first connecting portion 31, second
Portion 32, the first elastic helix part 33, the second elastic helix part 34 and transmission axle 35.First connecting portion 31, second connecting portion 32,
First elastic helix part 33, the second elastic helix part 34 and transmission axle 35 are integrated, and its globality structure is preferable, group
Assembly and disassembly unload relatively simple during the 2D electro-hydraulic proportion reversing valves.In the embodiment, valve element 12, first connecting portion 31, second are connected
Portion 32, transmission axle 35 and rotor 22 are coaxially disposed.
Wherein, such as Fig. 4, Fig. 5 and refering to shown in Fig. 1, Fig. 2, the first connecting portion 31 is fixedly connected with valve element 12, and this second
Connecting portion 32 is fixedly connected with rotor 22, and first connecting portion 31 is external diameter identical cylinder with second connecting portion 32.This first
Elastic helix part 33 and the second elastic helix part 34 are connected between first connecting portion 31 and second connecting portion 32, namely
First elastic helix part 33 is connected to the both ends of the surface adjacent with second connecting portion 32 of first connecting portion 31, the second elastic helix part 34
It is again connected to the both ends of the surface adjacent with second connecting portion 32 of first connecting portion 31.In the present embodiment, the first elastic helix part 33
It is identical with the rotation direction of the second elastic helix part 34, and the first elastic helix part 33 and the second elastic helix part 34 are respectively in the first company
Projection on the same end face of socket part 31 is separated from each other, and this is projected as fan annular, and two projections are axisymmetricly set.When rotor 22
Rotate with when driving the second connecting portion 32 to rotate, the first elastic helix part 33 and the second elastic helix part 34 generation relative torsion with
Drive the rotary motion of first connecting portion 31.
Refering to shown in Fig. 5, Fig. 6, in the present embodiment, it is preferable that the first elastic helix part 33 and the second elastic helix part 34
For identical structure, and reverse symmetry is set, and its mathematical modeling is as follows：
X=φ r
L=ψ r
Wherein：
φ:First elastic helix part or the corresponding central angle of the second elastic helix part end on projection；
r：First elastic helix part or the corresponding radius of the second elastic helix part end on projection；
ψ：The corresponding central angle of any one section of conveyor screw end on projection on first elastic helix part or the second elastic helix part；
x：The corresponding arc length of central angle φ；
l：The corresponding arc length of central angle ψ；
θ：The angle that section is turned at first elastic helix part, the second elastic helix part x；
w：Amount of deflection at first elastic helix part, the second elastic helix part x；
δ：The dislocation distance of first elastic helix part and the second elastic helix part.
In Fig. 6, Δ l is the variable quantity of the corresponding arc length of central angle ψ.Above-mentioned mathematical modeling preferably reaction pressure can turn round shaft coupling
Degree of the disturbing situation of change after the first elastic helix part 33 and the expansion of the second elastic helix part 34 in device 3, makes the first elastic spiral shell
Rotating part 33 and the deformation energy of the second elastic helix part 34 are more fitted design requirement, and the effect that pressure turns round amplification reaches most preferably.
In the present embodiment, first connecting portion 31 axially offers first through hole 311, and the first through hole 311 is connected with first
Portion 31 is coaxially disposed.Second connecting portion 32 axially offers the second through hole 321, and second through hole 321 and second connecting portion 32 are same
Axle is set.Transmission axle 35 is located in the through hole 321 of first through hole 311 and second, and one end and the gap of valve element 12 of transmission axle 35
Coordinate, the other end and the rotor 22 of transmission axle 35 are interference fitted.Preferably, the transmission axle 35 is in six prism structures, more can may be used
The moment of torsion of rotational rate electromagnet is transmitted to valve element by ground.Using the structure of transmission axle 35, when the rotary motion of rotor 22 to drive
When second connecting portion 32 is rotated, the first elastic helix part 33 and the second elastic helix part 34 produce relative torsion to drive the first company
While 31 rotary motion of socket part, the rotary motion of rotor 22 can equally be passed to valve element 12 by transmission axle 35.
As shown in figure 1, the sleeve 4 suit pressure is turned round outside one end of shaft coupling 3, one end of sleeve 4 is fixed with valve body 11 to be connected
Connect, the other end of sleeve 4 is connected with housing 21.In the present embodiment, sleeve 4 is square hollow structure.Using the knot of the sleeve 4
Structure, can turn round shaft coupling 3 to pressure and play a protective role.
The concrete operating principle of the 2D electro-hydraulic proportion reversing valves：As shown in figure 3, as shown in figure 3, system pressure mouthful P, work
Make hydraulic fluid port A and B, and return pressure mouthful T.When 2 dead electricity of rotary magnet, valve element 12 is in zero-bit, and pressure hole 121 is with experiencing passage
123 transfer area, low pressure hole 122 and the transfer area for experiencing passage 123, two transfer areas are identical, the left end pressure of valve element 12
Power is system pressure P half, and right-hand member pressure perseverance is P, but its effective area only has the left end side half of the area of valve element 12, therefore valve
Core 12 is in balance.The 2D electro-hydraulic proportion reversing valves turn round the structure of shaft coupling using the pressure with transmission axle, when rotary proportional electricity
Magnet 2 obtains electric, because the right-hand member of transmission axle 35 is interference fitted with rotor 22, and left end is that gap coordinates with valve element 12, the rotation of rotor 22
On the one hand transhipment is dynamic to rotate valve element 12 by transmission axle 35, on the other hand by the first elastic helix part 33 and the second elastic helix
The radial rigidity of part 34 is larger, and the rotary motion of rotor 22 also will be directly by the first elastic helix part 33 and the second elastic helix part
34 are transferred to valve element 12.For example, when valve element 12, (from direction as shown from right to left) rotation makes pressure hole 121 and impression clockwise
The transfer area of passage 123 reduces, low pressure hole 122 and the transfer area increase for experiencing passage 123, under the left end pressure of valve element 12
Drop, two ends pressure difference moves valve element 12, and when valve element 12 is axially moved, the first elastic helix part 33 is produced with the second elastic helix part 34
Raw axile displacement distance.Because first connecting portion 31 is clockwise (from direction as shown by from right to left) after rotation, the first elasticity
The axile displacement distance that the elastic helix part 34 of helical member 33 and second is produced will produce certain reset torque, when the first elastic spiral shell
Rotating part 33 will be produced with respect to the second elastic helix part 34 (from direction as shown from right to left) to be reversed counterclockwise, until going back to identical
Angle, valve element 12 reaches balance exercise again.Because the two ends pressure difference of valve element 12 moves valve element 12, the first elastic helix part 33
Certain reset torque will be produced by producing axile displacement distance with the second elastic helix part 34, first connecting portion is revolved 31 and is gone back to just
Beginning angle, reaches balance again.
In the present embodiment, the structure between the first elastic helix part 33 and the second elastic helix part 34 is similar to DNA double spiral shell
Structure is revolved, approximate right angle is constituted between double-spiral structure axile displacement distance, circumferential arc length and structure length of run three
Two relations between right-angle side and hypotenuse of triangle, it is clear that because the length of helical structure is constant, when second connecting portion 32 by turn
The push-and-pull action of son 22 makes first connecting portion 31 be changed with the dislocation of second connecting portion 32, then necessarily makes the first elastic helix part
33 are changed with the camber line distance of the second elastic helix part 34, i.e. the first elastic helix part 33 is sent out with the second elastic helix part 34
Raw relative torsion, so that the rotary motion of first connecting portion 31 is driven, to realize that the rotation by rotor 22 is changed into the rotation of valve element 12
Motion.Compared with other electro-hydraulic proportion reversing valves, the pressure that pressure turns round shaft coupling 3 turns round transfer process in the absence of frictional force and gap, and
And the distance or force amplifying function of dislocation can pass through the first elastic helix part 33 of change and double spiral shells of the second elastic helix part 34
Rotation structural parameters are adjusted.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (4)
1. a kind of band transmission axle elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves, including reversal valve (1) and rotation
Proportion electro-magnet (2)；The reversal valve (1) includes valve body (11), and the valve element (12) in the valve body (11)；Institute
Stating rotational rate electromagnet (2) includes housing (21), and the rotor (22) in the housing (21)；Its feature exists
In：The 2D electro-hydraulic proportion reversing valves also include the pressure for being used to connect the reversal valve (1) and the rotational rate electromagnet (2)
Turn round shaft coupling (3)；The pressure turns round first connecting portion (31) and the institute that shaft coupling (3) includes being fixedly connected with the valve element (12)
State second connecting portion (32) that rotor (22) is fixedly connected, be connected to the first connecting portion (31) and the second connecting portion
(32) the first elastic helix part (33) and the second elastic helix part (34) between, and transmission axle (35)；The valve element (12),
The first connecting portion (31), the second connecting portion (32), the transmission axle (35), and the rotor (22) are coaxially set
Put；The first connecting portion (31), the second connecting portion (32), the first elastic helix part (33), second elasticity
Helical member (34) and the transmission axle (35) are integrated；
The first connecting portion (31) is external diameter identical cylinder with the second connecting portion (32)；First elastic helix
Part (33) is identical with the rotation direction of the second elastic helix part (34), and the first elastic helix part (33) and second bullet
Projection of the property helical member (34) respectively on the same end face of the first connecting portion (31) is separated from each other；The first connecting portion
(31) first through hole (311) is axially offered, the second connecting portion (32) axially offers the second through hole (321), described to pass
Axle (35) is passed to be located in the first through hole (311) and second through hole (321)；One end of the transmission axle (35) and institute
The cooperation of valve element (12) gap is stated, the other end and the rotor (22) of the transmission axle (35) are interference fitted；
The 2D electro-hydraulic proportion reversing valves also include being sleeved on the sleeve (4) that the pressure turns round shaft coupling (3) outside；The sleeve
(4) one end is fixedly connected with the valve body (11), and the other end of the sleeve (4) is connected with the housing (21)；
When the rotor (22) rotary motion to drive during the second connecting portion (32) rotation, the first elastic helix part
(33) produce relative torsion to drive the first connecting portion (31) rotary motion with the second elastic helix part (34).
2. band transmission axle elasticity pressure according to claim 1 turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves, it is special
Levy and be：The transmission axle (35) is in six prism structures.
3. band transmission axle elasticity pressure according to claim 1 turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves, it is special
Levy and be：The sleeve (4) is square hollow structure.
4. band transmission axle elasticity pressure according to claim 1 turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves, it is special
Levy and be：The first elastic helix part (33) and the second elastic helix part (34) are identical structure, and reverse symmetry is set
Put, its mathematical modeling is as follows：
X=φ r
L=ψ r
<mrow>
<mi>&theta;</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mn>6</mn>
<mi>&delta;</mi>
</mrow>
<msup>
<mi>l</mi>
<mn>3</mn>
</msup>
</mfrac>
<msup>
<mi>x</mi>
<mn>2</mn>
</msup>
<mo>-</mo>
<mfrac>
<mrow>
<mn>6</mn>
<mi>&delta;</mi>
</mrow>
<msup>
<mi>l</mi>
<mn>2</mn>
</msup>
</mfrac>
<mi>x</mi>
</mrow>
<mrow>
<mi>w</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mn>2</mn>
<mi>&delta;</mi>
</mrow>
<msup>
<mi>l</mi>
<mn>3</mn>
</msup>
</mfrac>
<msup>
<mi>x</mi>
<mn>3</mn>
</msup>
<mo>-</mo>
<mfrac>
<mrow>
<mn>3</mn>
<mi>&delta;</mi>
</mrow>
<msup>
<mi>l</mi>
<mn>2</mn>
</msup>
</mfrac>
<msup>
<mi>x</mi>
<mn>2</mn>
</msup>
</mrow>
Wherein：
φ:First elastic helix part or the corresponding central angle of the second elastic helix part end on projection；
r：First elastic helix part or the corresponding radius of the second elastic helix part end on projection；
ψ：The corresponding central angle of any one section of conveyor screw end on projection on first elastic helix part or the second elastic helix part；
x：The corresponding arc length of central angle φ；
l：The corresponding arc length of central angle ψ；
θ：The angle that section is turned at first elastic helix part, the second elastic helix part x；
w：Amount of deflection at first elastic helix part, the second elastic helix part x；
δ：The dislocation distance of first elastic helix part and the second elastic helix part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048119.5A CN105526203B (en) | 2016-01-25 | 2016-01-25 | Band transmission axle elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610048119.5A CN105526203B (en) | 2016-01-25 | 2016-01-25 | Band transmission axle elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves |
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| Publication Number | Publication Date |
|---|---|
| CN105526203A CN105526203A (en) | 2016-04-27 |
| CN105526203B true CN105526203B (en) | 2017-08-29 |
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| CN201610048119.5A Active CN105526203B (en) | 2016-01-25 | 2016-01-25 | Band transmission axle elasticity pressure turns round coupling type semibridge system 2D electro-hydraulic proportion reversing valves |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458864A (en) * | 2018-04-09 | 2018-08-28 | 湖州职业技术学院 | Pressure turns round shaft coupling force analysis and tests system |
| CN109555741B (en) * | 2018-11-12 | 2020-09-22 | 温州大学 | Damping half-bridge type pilot control switch valve |
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