CN102063998A - Pressure-proof proportion electromagnet based on integrated type flux sleeve - Google Patents

Pressure-proof proportion electromagnet based on integrated type flux sleeve Download PDF

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Publication number
CN102063998A
CN102063998A CN 201010558158 CN201010558158A CN102063998A CN 102063998 A CN102063998 A CN 102063998A CN 201010558158 CN201010558158 CN 201010558158 CN 201010558158 A CN201010558158 A CN 201010558158A CN 102063998 A CN102063998 A CN 102063998A
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CN
China
Prior art keywords
flux sleeve
type
ring
groove
armature
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CN 201010558158
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Chinese (zh)
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CN102063998B (en
Inventor
周星
丁凡
满军
笪靖
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浙江大学
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Abstract

The invention discloses a pressure-proof proportion electromagnet based on an integrated type flux sleeve, which comprises a flux sleeve (5), a push rod (9), an armature (3) and the like, wherein a flux sleeve inner cavity (55) is arranged inside a front section (51) and a middle section (52) of the flux sleeve (5); an inner cavity end face (54) is formed at an interface of the flux sleeve inner cavity (55) and a rear section (53); the armature (3) is arranged inside the flux sleeve inner cavity (55); a limit piece (7) is arranged between a right end face (31) of the armature (3) and the inner cavity end face (54) of the flux sleeve (5); a radial operating air gap I (101) is formed by a gap between the side wall of the flux sleeve inner cavity (55) and the side wall of the armature (3); and an axial operating air gap II (102) is formed by a gap between the right end face (31) of the armature (3) and the inner cavity end face (54) of the flux sleeve (5). The proportion electromagnet has the characteristics of high pressure resistance, good force characteristic proportion performance, long effective stroke length and the like.

Description

Pressure resistant type proportion electro-magnet based on the integral type flux sleeve
Technical field
The present invention relates to the electromechanical switching mechanism that proportioning valve, servo valve are used in a kind of fluid control systems, relate in particular to a kind of pressure resistant type proportion electro-magnet based on the integral type flux sleeve.
Background technology
Proportion electro-magnet is as a kind of electromechanical switching mechanism of electric-hydraulic proportion control element, and its function is that the current signal that control amplifier is exported to is converted to power or displacement pro rata.Traditional proportion electro-magnet, the proportion electro-magnet of the disclosed a kind of typical basin shape pole shoe structure of patent of invention DE3309904 for example, be specially: its stage casing is general shown in Fig. 8 (for the partial enlarged drawing in stage casing): one section magnetism-isolating loop is fired with non-magnet material brass in the stage casing at flux sleeve, leading portion and back segment are respectively the magnetic conductor that soft magnetic material is made, and its leading portion and magnetic conduction are with an angle α; For obtaining good output characteristics, angle α requirement on machining accuracy height; These all make and implement very complexity on its technology.
Patent of invention US6520600 discloses a kind of high-speed switch electromagnet that adopts the integrated flux sleeve of special construction, shown in Fig. 9 (for flux sleeve stage casing partial enlarged drawing): have a ring-type trapezoidal groove at the flux sleeve middle part, replaced traditional magnetism-isolating loop structure, make whole flux sleeve can adopt same material one-body molded, thereby simplified processing process, reduce cost.Leading portion angle α is 90 °~135 °, and back segment angle β is 90 °~135 °; The stage casing of this flux sleeve is-the annular thin wall structure that it is limited to bear pressure; And the Qian Penjiao of trapezoidal groove and basin angle, back processing difficulties.
Patent of invention CN101776172 discloses a kind of permanent magnet-shield formula high-speed switch electromagnet, has placed permanent magnet in the ring-type trapezoidal groove of integrated flux sleeve, has improved response speed, increases the output electromagnetic force.But there is the thin and long shortcoming of the jacket wall at flux sleeve fluting place equally in this electromagnet, causes the pressure that bears in the flux sleeve limited.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of pressure resistant type proportion electro-magnet based on the integral type flux sleeve simple in structure, the characteristics that it has the voltage endurance capability height, force characteristic ratio performance is good and effective travel is long.
In order to solve the problems of the technologies described above, the invention provides a kind of pressure resistant type proportion electro-magnet based on the integral type flux sleeve, the flux sleeve that is made into integration by permeability magnetic material that comprises hollow, flux sleeve is positioned at housing, between flux sleeve and housing, control coil is set, push rod vertically runs through the armature that is positioned at flux sleeve, and push rod and armature are fixedly linked; The integral type flux sleeve comprises leading portion, stage casing and back segment three parts; In the leading portion of flux sleeve and stage casing the flux sleeve inner chamber is set, the interface of flux sleeve inner chamber and back segment forms interior resonator end surface; The armature that slides and link to each other with flux sleeve is set in the flux sleeve inner chamber, is provided with the axially extending bore or the axial pass trough of two symmetric arrangement in the armature; In the back segment of flux sleeve, passage is set, in passage, is provided with the back segment strutting piece; Be provided with logical oily aperture with the flux sleeve intracavity inter-connection at the back segment of flux sleeve;
Establish the end cap of end cap cavity in also comprising based on the pressure resistant type proportion electro-magnet of integral type flux sleeve, the leading portion of flux sleeve is sleeved in the end cap cavity, and the leading portion of flux sleeve links to each other with the end cap cavity sealing; The back segment of flux sleeve closely link to each other with the inner chamber of housing (promptly between the two for interference fit); Between the interior resonator end surface of the right side of armature and flux sleeve, the banking stop that non-magnet material is made is set; The two ends, the left and right sides of banking stop contact with right side and interior resonator end surface respectively; The right-hand member of push rod runs through the back segment strutting piece; Push rod slides with the back segment strutting piece and links to each other; Be provided with the leading portion strutting piece at the flux sleeve inner chamber that is arranged in leading portion, the left end of push rod slides with the leading portion strutting piece and links to each other;
Gap between the sidewall of flux sleeve inner chamber and the sidewall of armature forms radially working gas gap I, and the gap between the interior resonator end surface of the right side of armature and flux sleeve forms axial running clearance II.
Further improvement as the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention: flux sleeve is to be integrated into by permeability magnetic material.
Further improvement as the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention: parallel from left to right at least 1 dark groove of ring-type and at least 1 ring-type shallow grooves of being provided with on the outer surface in flux sleeve stage casing, form a depth groove group, dark groove is defined as the groove that groove depth is a flux sleeve wall thickness 80%~90%, and shallow grooves is defined as the groove that groove depth is a flux sleeve wall thickness 45%~75%.
Further improvement as the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention: the depth groove group on the outer surface of flux sleeve stage casing is divided into pressure-bearing groove group and adjustable magnetic groove group from left to right, pressure-bearing groove group is made up of the dark groove of ring-type, perhaps pressure-bearing groove group is dark groove of ring-type and the various dissimilar combinations of ring-type shallow grooves, and adjustable magnetic groove group is made up of the ring-type shallow grooves.The groove depth of the dark groove of ring-type can unanimity also can be inconsistent, the groove depth of ring-type shallow grooves can unanimity also can be inconsistent.
In the present invention, armature, flux sleeve, housing, end cap are the magnetic conductor that soft magnetic material is made.
In the present invention: the groove depth L2 of the dark groove of ring-type can equate also can not wait, and the groove width δ 2 of the dark groove of ring-type can equate also can not wait, and the separation λ 2 between the dark groove of ring-type can equate also can not wait.The groove depth L1 of ring-type shallow grooves can equate also can not wait, and the groove width δ 1 of ring-type shallow grooves can equate also can not wait, and the separation λ 1 between the ring-type shallow grooves can equate also can not wait; Separation λ 3 between the dark groove of ring-type shallow grooves and ring-type can equate also can not wait.
Pressure-bearing groove group has been avoided the shortcoming that trapezoidal annular recess causes the magnetic conduction jacket wall to approach and grow in the background technology by the combination of multiple ring-type shallow grooves and the dark groove of ring-type, can bear enough big internal pressure; Adjustable magnetic groove group forms a magnetic saturation zone by the combination of multiple ring-type shallow grooves, thereby constitutes the magnetic circuit of special shape, has realized the ratio characteristic of power output.Thereby make the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention when having the good proportion output performance, also make flux sleeve have enough compressive resistances.
The magnetic circuit of the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention is divided into Φ near working gas gap 1And Φ 2Two parts, wherein magnetic circuit Φ 1Working gas gap II enters the interior resonator end surface of flux sleeve vertically, produces end force F 1Φ 2After the outer surface of armature (for cylindrical outer surface) passes working gas gap I radially, enter the back segment of flux sleeve, produce axial additional force F 2F 1And F 2The two comprehensively just obtained proportion electro-magnet power output F.
In the present invention, increase the groove width δ 2 of the dark groove of ring-type or the groove width δ 1 of ring-type shallow grooves and can prolong impulse stroke, optimize the ratio characteristic of power output, but bearing capacity is descended; Reduce the size that separation λ 2, the separation λ 1 between the ring-type shallow grooves between the dark groove of ring-type or the separation λ 3 between ring-type shallow grooves and the dark groove of ring-type can increase power output, optimize the ratio characteristic of power output, prolong impulse stroke, but can increase technology difficulty, and reduce the jacket wall intensity of flux sleeve.The groove depth L1 that increases the dark groove of ring-type can optimize the ratio characteristic of power output, prolongs impulse stroke, but can reduce the bearing capacity of flux sleeve.Adjust the different groove depths combinations of ring-type shallow grooves in the adjustable magnetic groove group, can the optimized proportion characteristic, increase the size of power output.Therefore, need at real work, by emulation and finite element optimization, can select the combination of suitable pressure-bearing groove group and adjustable magnetic groove group, each groove groove depth of (promptly comprising dark groove of ring-type and ring-type shallow grooves) is set, groove width and groove spacing parameter, the radially leakage field component when thereby control armature moves, the electromagnetic force that makes armature be subjected to is only proportional with the current value of control coil in certain stroke range, and it is irrelevant with the stroke of the relative flux sleeve of armature, therefore just can on armature, obtain direction and the corresponding power output of numerical value with Control current, make electromagnetic force F be the horizontal force characteristic relation substantially, as shown in Figure 4 with respect to the stroke of armature.
Pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention is compared with background technology, has following beneficial effect:
1, flux sleeve is integrated into by permeability magnetic material, and simplified processing process reduces cost;
2, the stage casing of flux sleeve has the annular recess (comprising dark groove and shallow grooves) of several special constructions, has substituted traditional magnetism-isolating loop structure, thereby has formed the magnetic circuit of special shape, obtains the ratio characteristic; Therefore electromagnet of the present invention has good quiet, dynamic characteristic;
3, have the flux sleeve of depth groove, have enough compressive resistances.
In sum, use the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention, can significantly reduce the complexity of technology, bear enough internal pressures, on armature, can obtain and the proportional continuous power output of input signal, have good quiet, dynamic characteristic.Pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention can be widely used in guide's controlled stage of servo valve or proportioning valve, has the engineering practical value.
The power composite diagram of the horizontal characteristic of the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention can satisfy the output requirement of ratio characteristic as shown in Figure 4.Pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention is carried out the overall target contrast with the high pressure resistant proportionality electromagnet of common form and the structure and the performance of the permanent magnet-shield formula high-speed switch electromagnet in the background technology, and concrete correction data is as shown in table 1:
Table 1
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the sectional structure schematic diagram of the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention;
Fig. 2 (a) (b) (c) is the structure for amplifying schematic diagram of the local A among Fig. 1;
Fig. 2 (a) is pressure-bearing groove group and adjustable magnetic groove group compound mode one;
Fig. 2 (b) is pressure-bearing groove group and adjustable magnetic groove group compound mode two;
Fig. 2 (c) is pressure-bearing groove group and adjustable magnetic groove group compound mode three;
Fig. 3 is the magnetic circuit schematic diagram of Fig. 2 (a);
Fig. 4 is the power composite diagram of the horizontal characteristic of the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention;
Fig. 5 is the displacement-force characteristic figure based on the pressure resistant type proportion electro-magnet of integral type flux sleeve of embodiment 1;
Fig. 6 is the displacement-force characteristic figure based on the pressure resistant type proportion electro-magnet of integral type flux sleeve of embodiment 2;
Fig. 7 is the displacement-force characteristic figure based on the pressure resistant type proportion electro-magnet of integral type flux sleeve of embodiment 3;
Fig. 8 is one of local structure for amplifying schematic diagram in the background technology;
Fig. 9 be in the background technology local structure for amplifying schematic diagram two.
Among above-mentioned Fig. 1~Fig. 2:
1: end cap, 11: end cap cavity,
2: circlip,
3: armature, 31: the right side, 32: axially extending bore,
4: housing,
5: flux sleeve, 51: leading portion, 52: the stage casing, 53: back segment, 54: interior resonator end surface, 55: the flux sleeve inner chamber,
56: passage, 57: the dark groove of ring-type, 58: the ring-type shallow grooves, 59: logical oily aperture,
6: back segment strutting piece, 7: banking stop, 8: control coil, 9: push rod, 10: the leading portion strutting piece;
101: working gas gap I radially, 102: axial running clearance II; 103: pressure-bearing groove group, 104: adjustable magnetic groove group.
Embodiment
Embodiment 1, Fig. 1 and Fig. 2 (a) be in conjunction with having provided a kind of pressure resistant type proportion electro-magnet based on the integral type flux sleeve, comprise profile be cuboid and endoporus be housing 4, the profile of cylindrical hole be the cylindrical flux sleeve 5 of ladder and in establish the end cap 1 of end cap cavity 11; Flux sleeve 5 is sleeved in the housing 4, between flux sleeve 5 and housing 4 control coil 8 is set.Control coil 8 can be selected concentric spirals tubular type control coil for use.On housing 4, be provided with opening, be used for mounting receptacle and be connected with the control electronic circuit; Be that control coil 8 can utilize this opening to realize and extraneous being electrically connected.
Flux sleeve 5 is made up of the leading portion 51, stage casing 52 and the back segment 53 that link to each other successively from left to right.Back segment 53 is combined by small cylinder and large cylinder, and therefore, back segment 53 is the ladder cylinder; Leading portion 51 and stage casing 52 are equal diameters cylinder (small cylinder in diameter=back segment 53).Leading portion 51, stage casing 52 and back segment 53 adopt the integrated making of permeability magnetic material to form, thereby have the effect of simplifying production technology; Leading portion 51, stage casing 52 and back segment 53 smooth linking to each other successively.
The leading portion 51 of flux sleeve 5 is sleeved in the end cap cavity 11 of end cap 1, the outer wall of the sidewall of this end cap cavity 11 and leading portion 51 matches, can between the outer wall of the sidewall of end cap cavity 11 and leading portion 51, sealing ring be set, thereby realize that end cap 1 links to each other with the sealing of leading portion 51 (that is the leading portion 51 of, realizing flux sleeve 5 links to each other with the sealing of end cap cavity 11).
In the leading portion 51 of flux sleeve 5 and stage casing 52, flux sleeve inner chamber 55 is set, resonator end surface 54 in the interface of flux sleeve inner chamber 55 and back segment 53 forms.At the flux sleeve inner chamber 55 that is positioned at stage casing 52 armature 3 is set, armature 3 slides with flux sleeve 5 and links to each other (that is, armature 3 links to each other with 55 slips of flux sleeve inner chamber); The external diameter of armature 3 is slightly less than the aperture of flux sleeve inner chamber 55.
Armature 3 is a cylinder, and heart position is provided with a passage longitudinally therein, push rod 9 utilize this longitudinally passage vertically run through whole armature 3, the diameter of passage is identical longitudinally with this for the external diameter of push rod 9, and push rod 9 is fixedly linked with armature 3.Be provided with the axially extending bore 32 of two symmetric arrangement in armature 3, the two ends, the left and right sides of this axially extending bore 32 all are connected with flux sleeve inner chamber 55; The purposes of axially extending bore 32 is holding armature 3 two ends fluid pressure balances.
Between the interior resonator end surface 54 of the right side 31 of armature 3 and flux sleeve 5, the banking stop 7 that non-magnet material is made is set; This banking stop 7 is sleeved on the push rod 9.The two ends, the left and right sides of banking stop 7 contact with right side 31 and interior resonator end surface 54 respectively.Banking stop 7 is set in the manner described above, inhale together with the interior resonator end surface 54 of flux sleeve 5 right side 31 that can prevent armature 3, accelerated the dispose procedure of the dynamic characteristic of armature 3, and the inoperative stroke of (when the gap between right side 31 and the interior resonator end surface 54 is very little) when having removed small air gap.
The inwall of the outer surface of the large cylinder of back segment 53 and housing 4 matches, thereby closely link to each other (being interference fit between the two) of the inwall of the large cylinder of realization back segment 53 and housing 4; In fact the large cylinder of back segment 53 plays the effect of right end cap.The above-mentioned design of back segment 53 can guarantee the concentricity of right end cap and flux sleeve 5, can realize high-seal between the two again.In the back segment 53 of flux sleeve 5, be provided with the logical oily aperture 59 that is connected with flux sleeve inner chamber 55; The effect of logical oily aperture 59 is to avoid pocketed oil.
In the back segment 53 of flux sleeve 5 passage 56 is set, this passage 56 communicates with flux sleeve inner chamber 55.Be provided with back segment strutting piece 6 (can be linear bearing, copper ring etc., is copper ring in the present embodiment) in passage 56, this back segment strutting piece 6 is fixedly linked with passage 56.The right-hand member of push rod 9 runs through back segment strutting piece 6, and push rod 9 slides with back segment strutting piece 6 and links to each other.Back segment strutting piece 6 is made by the material of low-friction coefficient, and back segment strutting piece 6 plays the effect of support set.
Be provided with leading portion strutting piece 10 (can be linear bearing, copper ring etc., is linear bearing in the present embodiment) at the flux sleeve inner chamber 55 that is positioned at leading portion 51, the end face of leading portion strutting piece 10 blocks with circlip 2, prevents that leading portion strutting piece 10 from sliding vertically; The flux sleeve inner chamber 55 of the outer ring of this leading portion strutting piece 10 and flux sleeve 5 closely cooperates; The left end of push rod 9 slides with leading portion strutting piece 10 and links to each other, and promptly the left end of push rod 9 slides with the inner ring of leading portion strutting piece 10 and links to each other.
The effect of push rod 9 is output electromagnetic forces, externally load acting.Set leading portion strutting piece 10 and back segment strutting piece 6 can make the less uniform radial clearance of maintenance between armature 3 and the flux sleeve 5, to reduce friction between the two.
In the present embodiment, on the outer surface in flux sleeve 5 stage casings 52 from left to right set gradually the dark groove 57 of 6 ring-types and 1 the ring-type shallow grooves 58 that is parallel to each other, the dark groove 57 of these 6 ring-types and 1 ring-type shallow grooves 58 are all perpendicular to the central axis of flux sleeve 5; The dark groove 57 of these 6 ring-types and 1 ring-type shallow grooves 58 are formed depth groove group.6 dark grooves 57 of ring-type are formed 103,1 ring-type shallow grooves of pressure-bearing groove group 58 and are formed adjustable magnetic groove group 104.
In the present embodiment, flux sleeve 5 stage casings 52 wall thickness a=2mm.
The groove width δ 2 of the dark groove 57 of ring-type and the groove width δ 1 of ring-type shallow grooves 58 can regulate between 0.2 times~0.5 times of flux sleeve 5 stage casings 52 wall thickness a.Separation λ 3 between the dark groove 57 of separation λ 2, ring-type shallow grooves 58 and ring-type between the dark groove 57 of ring-type can regulate between 0.25 times~0.5 times of flux sleeve 5 stage casings 52 wall thickness a.
The groove depth L2 of the dark groove 57 of ring-type regulates between 0.8 times~0.9 times of flux sleeve 5 stage casings 52 wall thickness a.The groove depth L1 of ring-type shallow grooves 58 regulates between 0.45 times~0.75 times of flux sleeve 5 stage casings 52 wall thickness a.
In the present embodiment, the groove width δ 2=0.6mm of the dark groove 57 of ring-type, the groove width δ 1=0.6mm of ring-type shallow grooves 58, separation λ 2=0.6mm between the dark groove 57 of ring-type, separation λ 3=0.6mm between the dark groove 57 of ring-type shallow grooves 58 and ring-type, the groove depth L2 of the dark groove 57 of ring-type is 1.7mm, and the groove depth L1 that ring-type shallow grooves 58 is set is 1.0mm.
Above-mentioned pressure-bearing groove group 103 and adjustable magnetic groove group 104 all are positioned at the left side of resonator end surface 54, and back segment strutting piece 6 is positioned at the right side of resonator end surface 54.
Above-mentioned armature 3, whole flux sleeve 5, housing 4, end cap 1 are the magnetic conductor that soft magnetic material is made.
Because the external diameter of armature 3 is less than the aperture of flux sleeve inner chamber 55, gap between the sidewall of the sidewall of flux sleeve inner chamber 55 and armature 3 forms radially working gas gap I 101, and the gap between the right side 31 of armature 3 and the interior resonator end surface 54 of flux sleeve 5 forms axial running clearance II 102.
Pressure resistant type proportion electro-magnet real work content based on the integral type flux sleeve of the present invention is as shown in Figure 3 and Figure 4, and is specific as follows:
When control coil 8 galvanizations, produce electromagnetic force between armature 3 and the flux sleeve 5, because push rod 9 is fixedly linked with armature 3, therefore can export external load acting by push rod 9, and this electromagnetic force maintenance level in certain stroke range.
The magnetic circuit of the pressure resistant type proportion electro-magnet based on the integral type flux sleeve of the present invention is divided into Φ near working gas gap 1And Φ 2Two parts, wherein magnetic circuit Φ 1Working gas gap II 102 enters the interior resonator end surface 54 of flux sleeve 5 vertically, produces end force F 1Φ 2After the cylindrical outer surface of armature 3 passes working gas gap I 101 radially, enter the back segment 53 of flux sleeve 5, produce axial additional force F 2F 1And F 2The two comprehensively just obtained proportion electro-magnet power output F.
Fig. 5 is this pressure resistant type proportion electro-magnet displacement one force characteristic figure under different electric currents based on the integral type flux sleeve, thereby proof: the electromagnetic force that armature 3 is subjected to is only proportional with the current value of control coil 8 in certain stroke range, and it is irrelevant with the stroke of armature 3 relative flux sleeves 5, obtain direction and the corresponding power output of numerical value with Control current on armature 3, electromagnetic force F is the horizontal force characteristic relation substantially with respect to the stroke of armature 3.
Embodiment 2, Fig. 1 and Fig. 2 (b) are in conjunction with having provided another kind of pressure resistant type proportion electro-magnet based on the integral type flux sleeve.
The difference of itself and embodiment 1 only has been to change the set depth groove group of being made up of pressure-bearing groove group 103 and adjustable magnetic groove group 104 of the outer surface in flux sleeve 5 stage casings 52, and is specific as follows: on the outer surface in flux sleeve 5 stage casings 52 from left to right set gradually the dark groove 57 of 4 ring-types and 3 the ring-type shallow grooves 58 that are parallel to each other; The dark groove 57 of these 4 ring-types and 3 ring-type shallow grooves 58 are all perpendicular to the central axis of flux sleeve 5.The dark groove 57 of these 4 ring-types and 3 ring-type shallow grooves 58 are formed depth groove group.4 dark grooves 57 of ring-type are formed 103,3 ring-type shallow grooves of pressure-bearing groove group 58 and are formed adjustable magnetic groove group 104.
In the present embodiment, flux sleeve 5 stage casings 52 wall thickness a=2mm.Separation λ 1 between the ring-type shallow grooves 58 can regulate between 0.25 times~0.5 times of flux sleeve 5 stage casings 52 wall thickness a.
In the present embodiment, the groove width δ 2=0.8mm of the dark groove 57 of ring-type, the groove width δ 1=0.8mm of ring-type shallow grooves 58, separation λ 2=0.6mm between the dark groove 57 of ring-type, separation λ 1=0.6mm between the ring-type shallow grooves 58, separation λ 3=0.6mm between the dark groove 57 of ring-type shallow grooves 58 and ring-type, the groove depth L2 of the dark groove 57 of ring-type is 1.8mm, and the groove depth L1 of 3 ring-type shallow grooves 58 is followed successively by 1.3mm, 1.4mm, 1.5mm from right to left.
Fig. 6 is this pressure resistant type proportion electro-magnet displacement-force characteristic figure under different electric currents based on the integral type flux sleeve.Thereby proof: the electromagnetic force that armature 3 is received is only proportional with the current value of control coil 8 in certain stroke range, and it is irrelevant with the stroke of armature 3 relative flux sleeves 5, obtain direction and the corresponding power output of numerical value with Control current on armature 3, electromagnetic force F is the horizontal force characteristic relation substantially with respect to the stroke of armature 3.
Embodiment 3, Fig. 1 and Fig. 2 (c) are in conjunction with having provided another pressure resistant type proportion electro-magnet based on the integral type flux sleeve.The difference of itself and embodiment 1 only has been to change the set depth groove group of being made up of pressure-bearing groove group 103 and adjustable magnetic groove group 104 of the outer surface in flux sleeve 5 stage casings 52, specific as follows: on the outer surface in flux sleeve 5 stage casings 52 earlier from left to right be arranged alternately 3 dark grooves 57 of ring-type and 3 ring-type shallow grooves 58 successively, 1 ring-type shallow grooves 58 is set at the rightest place again.Formed pressure-bearing groove group 103 from the dark groove 57 of 3 ring-types and 2 ring-type shallow grooves 58 of left-hand digit; Remaining 2 ring-type shallow grooves 58 have been formed adjustable magnetic groove group 104.
Above-mentioned all dark grooves 57 of ring-type are parallel mutually with all ring-type shallow grooves 58, and all perpendicular to the central axis of flux sleeve 5.
In the present embodiment, flux sleeve 5 stage casings 52 wall thickness a=2mm.
In the present embodiment, in the pressure-bearing groove group 103: the groove width δ 2=0.8mm of the dark groove 57 of ring-type, the groove width δ 1=0.8mm of ring-type shallow grooves 58, the separation λ 3=0.6mm between the dark groove 57 of ring-type shallow grooves 58 and ring-type; The groove depth L2 of 3 dark grooves 57 of ring-type is unequal, is followed successively by 1.8mm, 1.7mm, 1.8mm, and the groove depth L1 of 2 ring-type shallow grooves 58 is 1.5mm.
In adjustable magnetic groove group 104: the groove width δ 1=0.8mm of ring-type shallow grooves 58, the separation λ 1=0.6mm between the ring-type shallow grooves 58, the separation λ 3=0.6mm between the dark groove 57 of ring-type shallow grooves 58 and ring-type; The groove depth L1 of 2 ring-type shallow grooves 58 is followed successively by 1.4mm, 1.3mm from left to right.
Fig. 7 is this pressure resistant type proportion electro-magnet displacement-force characteristic figure under different electric currents based on the integral type flux sleeve.Thereby proof: the electromagnetic force that armature 3 is received is only proportional with the current value of control coil 8 in certain stroke range, and it is irrelevant with the stroke of armature 3 relative flux sleeves 5, obtain direction and the corresponding power output of numerical value with Control current on armature 3, electromagnetic force F is the horizontal force characteristic relation substantially with respect to the stroke of armature 3.
At last, it is also to be noted that what more than enumerate only is several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.

Claims (4)

1. based on the pressure resistant type proportion electro-magnet of integral type flux sleeve, the flux sleeve (5) that comprises the hollow of making by permeability magnetic material, flux sleeve (5) is positioned at housing (4), between flux sleeve (5) and housing (4), control coil (8) is set, push rod (9) vertically runs through the armature (3) that is positioned at flux sleeve (5), and push rod (9) is fixedly linked with armature (3); It is characterized in that: described flux sleeve (5) is made up of leading portion (51), stage casing (52) and back segment (53) three parts; In described leading portion (51) and stage casing (52) flux sleeve inner chamber (55) is set, flux sleeve inner chamber (55) forms interior resonator end surface (54) with the interface of back segment (53); The armature (3) that slides and link to each other with flux sleeve (5) is set in flux sleeve inner chamber (55), is provided with the axially extending bore (32) or the axial pass trough of two symmetric arrangement in the described armature (3); Passage (56) is set in back segment (53), in passage (56), is provided with back segment strutting piece (6); In back segment (53), be provided with the logical oily aperture (59) that is connected with flux sleeve inner chamber (55);
In also comprising, establishes described pressure resistant type proportion electro-magnet based on the integral type flux sleeve end cap (1) of end cap cavity (11), the leading portion (51) of flux sleeve (5) is sleeved in the end cap cavity (11), and the leading portion (51) of flux sleeve (5) links to each other with end cap cavity (11) sealing; The back segment (53) of flux sleeve (5) closely links to each other with the inner chamber of housing (4); Between the interior resonator end surface (54) of the right side (31) of armature (3) and flux sleeve (5), the banking stop (7) that non-magnet material is made is set; The two ends, the left and right sides of banking stop (7) contact with the right side (31) of described armature (3) and the interior resonator end surface (54) of flux sleeve (5) respectively; The right-hand member of push rod (9) runs through back segment strutting piece (6); Described push rod (9) slides with back segment strutting piece (6) and links to each other; Be provided with leading portion strutting piece (10) at the flux sleeve inner chamber (55) that is arranged in leading portion (51), described push rod (9) left end slides with leading portion strutting piece (10) and links to each other;
Gap between the sidewall of the sidewall of described flux sleeve inner chamber (55) and armature (3) forms radially working gas gap I (101), and the gap between the right side (31) of armature (3) and the interior resonator end surface (54) of flux sleeve (5) forms axial running clearance II (102).
2. the pressure resistant type proportion electro-magnet based on the integral type flux sleeve according to claim 1 is characterized in that: described flux sleeve (5) is formed by the integrated making of permeability magnetic material.
3. the pressure resistant type proportion electro-magnet based on the integral type flux sleeve according to claim 1 and 2, it is characterized in that: on the outer surface in flux sleeve (5) stage casing (52), be provided with and be parallel to each other and all perpendicular to the dark groove of at least 1 ring-type (57) of flux sleeve (5) central axis and at least 1 ring-type shallow grooves (58), dark groove of described ring-type (57) and ring-type shallow grooves (58) are formed depth groove group, and the groove depth of the dark groove of described ring-type (57) is 80%~90% of flux sleeve (5) stage casing (a 52) wall thickness; The groove depth of described ring-type shallow grooves (58) is 45%~75% of flux sleeve (5) stage casing (a 52) wall thickness.
4. the pressure resistant type proportion electro-magnet based on the integral type flux sleeve according to claim 3, it is characterized in that: the depth groove group on the outer surface of flux sleeve (5) stage casing (52) is divided into pressure-bearing groove group (103) and adjustable magnetic groove group (104) from left to right, described pressure-bearing groove group (103) is the dark groove of ring-type (57) or is the combination of dark groove of ring-type (57) and ring-type shallow grooves (58) that described adjustable magnetic groove group (104) is ring-type shallow grooves (58).
CN2010105581582A 2010-11-23 2010-11-23 Pressure-proof proportion electromagnet based on integrated type flux sleeve CN102063998B (en)

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CN102684447A (en) * 2012-05-12 2012-09-19 中国兵器工业集团第七0研究所 Linear electromagnetic actuator
CN102788186A (en) * 2012-07-17 2012-11-21 宁波市鄞州通力液压电器厂 Proportional electromagnet for controlling position of valve core of hydraulic valve
CN103606432A (en) * 2013-11-27 2014-02-26 浙江科技学院 High-pressure-resistant moving-magnet type proportional electromagnet
CN103700464A (en) * 2013-12-17 2014-04-02 宁波华液机器制造有限公司 Novel proportion electromagnet
CN104167274A (en) * 2014-08-20 2014-11-26 浙江万向精工有限公司 Proportional electromagnet
CN104617740A (en) * 2015-01-14 2015-05-13 江西农业大学 Wet type high temperature resistance electric-mechanical converter
CN104728421A (en) * 2014-12-11 2015-06-24 贵州红林机械有限公司 Improved method and device for pressure proportional valve of automobile automatic gearbox
CN107420616A (en) * 2017-09-01 2017-12-01 杰锋汽车动力系统股份有限公司 A kind of middle VVT proportion magnetic valve
CN110444363A (en) * 2019-08-31 2019-11-12 重庆红江机械有限责任公司 A kind of proportion electro-magnet

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US6520600B1 (en) * 2000-09-09 2003-02-18 Kelsey-Hayes Company Control valve with single piece sleeve for a hydraulic control unit of vehicular brake systems
CN101776172A (en) * 2010-03-23 2010-07-14 浙江大学 High voltage-resistant permanent magnet-shield high speed switching electromagnet

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6520600B1 (en) * 2000-09-09 2003-02-18 Kelsey-Hayes Company Control valve with single piece sleeve for a hydraulic control unit of vehicular brake systems
CN101776172A (en) * 2010-03-23 2010-07-14 浙江大学 High voltage-resistant permanent magnet-shield high speed switching electromagnet

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102684447A (en) * 2012-05-12 2012-09-19 中国兵器工业集团第七0研究所 Linear electromagnetic actuator
CN102788186A (en) * 2012-07-17 2012-11-21 宁波市鄞州通力液压电器厂 Proportional electromagnet for controlling position of valve core of hydraulic valve
CN102788186B (en) * 2012-07-17 2014-10-29 宁波市鄞州通力液压电器厂 Proportional electromagnet for controlling position of valve core of hydraulic valve
CN103606432A (en) * 2013-11-27 2014-02-26 浙江科技学院 High-pressure-resistant moving-magnet type proportional electromagnet
CN103606432B (en) * 2013-11-27 2016-05-25 浙江科技学院 High pressure resistant moving-magnetic type proportion electro-magnet
CN103700464B (en) * 2013-12-17 2016-01-27 宁波华液机器制造有限公司 A kind of Novel proportion electromagnet
CN103700464A (en) * 2013-12-17 2014-04-02 宁波华液机器制造有限公司 Novel proportion electromagnet
CN104167274A (en) * 2014-08-20 2014-11-26 浙江万向精工有限公司 Proportional electromagnet
CN104167274B (en) * 2014-08-20 2017-02-22 浙江万向精工有限公司 Proportional electromagnet
CN104728421A (en) * 2014-12-11 2015-06-24 贵州红林机械有限公司 Improved method and device for pressure proportional valve of automobile automatic gearbox
CN104617740A (en) * 2015-01-14 2015-05-13 江西农业大学 Wet type high temperature resistance electric-mechanical converter
CN107420616A (en) * 2017-09-01 2017-12-01 杰锋汽车动力系统股份有限公司 A kind of middle VVT proportion magnetic valve
CN110444363A (en) * 2019-08-31 2019-11-12 重庆红江机械有限责任公司 A kind of proportion electro-magnet

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