CN204498022U - A kind of composite excitation noncontact levitation and guidance system - Google Patents
A kind of composite excitation noncontact levitation and guidance system Download PDFInfo
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- CN204498022U CN204498022U CN201520188975.1U CN201520188975U CN204498022U CN 204498022 U CN204498022 U CN 204498022U CN 201520188975 U CN201520188975 U CN 201520188975U CN 204498022 U CN204498022 U CN 204498022U
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Abstract
The utility model discloses a kind of composite excitation noncontact levitation and guidance system, adopt permanent magnet and electromagnet composite excitation, significantly reduce controlling electric current, low in energy consumption, can be used for the noncontact guiding of elevator, elevator.It comprises guide rail and guidance set, guidance set by left yoke, right yoke, permanent magnet, left coil winding, right coil windings, left tooth and right tooth composition; Left and right yoke is C shape channel-shaped body, the two notch relatively, be symmetrical set to form in guide rail both sides and partly encircle structure, and form both sides air gap; Two underarms of left and right yoke are connected by permanent magnet, and the underarm of left and right yoke is symmetrical arranged the left tooth of folding bar shape and right tooth respectively along direction straight up, and corresponding cover has coil windings, and the top end face of left and right tooth is parallel with guide rail side and arrange tooth air gap.The utility model provide a kind of quantity few, take up room little, low in energy consumption, control simple composite excitation noncontact levitation and guidance system.
Description
Technical field
The utility model belongs to electrician, elevators field, particularly relates to a kind of electromagnetism guidance system, is specifically related to a kind of composite excitation noncontact levitation and guidance system.
Background technology
Along with socioeconomic development, people more and more build high level and skyscraper, such as, and Burj Dubai's height overall of the United Arab Emirates 828 meters, totally 162 layers; The bell tower restaurant of imperial family, Meccah of Kingdom of Saudi Arabia is high 601 meters, totally 95 layers; Shanghai Center Building is high 632 meters, totally 125 layers; Taipei 101 financial center is high 509 meters, totally 106 layers; The bimodal tower height 457 meters in Malaysia capital, totally 88 layers.Multiple skyscraper is also had to be in the design and construction stage at present.Along with the continuous increase of story height, need configuration high-speed elevator, the needs of traditional mechanical guide wheel or the discontented sufficient actual motion of piston shoes contact guidance mode: be subject to leading the restriction of boots frictional force, cage operation speed is difficult to significantly improve; In high-speed cruising process, lead boots serious wear, maintenance is large; Because deviation and the vibration & noise caused that misplaces have impact on the comfortableness etc. taken.Based on this, people also been proposed non-contact type electromagnetism guide rail, by the guiding of electromagnetic force without wearing and tearing, without the need to lubricating oil, compare with tradition machinery guidance system, owing to running without friction, elevator may operate in higher speed, meanwhile, by the ratio of damping of electromagnetism regulable control guidance system, significantly riding comfort can be improved.Application publication number is the Chinese invention patent " magnetic levitation elevator guiding system and control method thereof " of CN102689830A, disclose one and utilize the non-contacting magnetic suspension guider of U-shaped high-speed double electromagnet and elevator device, the electromagnetism guider that this invention adopts 8 diagonal angles to arrange is to keep car status, although achieve noncontact guiding to run, but its electromagnet quantity used is many, take up room large, control complexity, control electric current is large, and electric energy loss is large.
Summary of the invention
The purpose of this utility model be to overcome above-mentioned deficiency of the prior art provide a kind of quantity few, take up room little, low in energy consumption, control simple composite excitation noncontact levitation and guidance system.
The technical solution of the utility model is achieved in that a kind of composite excitation noncontact levitation and guidance system, comprises guide rail and guidance set, the list structure of described guide rail to be cross section be rectangle, and described guide rail is vertically fixed on well enclosure;
Described guidance set comprises left yoke, right yoke, permanent magnet, left coil winding, right coil windings, left tooth and right tooth; Described left yoke is C shape channel-shaped body, and have the horizontal upper arm and underarm that are parallel to each other, described right yoke is identical with described left yoke structure, and the two C shape groove notch relatively and the both sides be symmetrical set at guide rail, forms and partly encircles structure; Described guide rail is arranged between the upper arm of described left yoke and the upper arm of described right yoke, and the side, two, left and right of described guide rail forms left arm air gap and right arm air gap respectively and between described left yoke and two upper arm end faces of described right yoke; Arrange the permanent magnet of rectangle between described left yoke underarm end face and right yoke underarm end face, left yoke and right yoke are connected in one through permanent magnet; Left yoke underarm and right yoke underarm edge are symmetrical arranged described left tooth and described right tooth in direction straight up respectively, and left tooth and right tooth respectively corresponding cover have left coil winding and right coil windings; Described left tooth is parallel with the leading flank of described guide rail with the top end face of described right tooth and be provided with left tooth air gap and right tooth air gap, and two gas lengths are equal.
Described left tooth and right tooth are folding bar shape, and the horizontal width d of two tooth top outer rim spacing d1 and guide rail meets d1≤d, and two tooth top inner edge spacing d2 and left tooth gas length d3 meet d2 > d3.
Described permanent magnet adopts rare earth permanent-magnetic material or Nd-Fe-Bo permanent magnet material to make.
Described left yoke, right yoke, left tooth and right tooth all adopt the good electrical pure iron of magnetic conduction or silicon steel to make.
The good effect that the technical solution of the utility model produces is as follows: the magnetic flux that permanent magnet produces is through two shunt circuits, primary Ioops is through permanent magnet, left yoke, left air gap, guide rail, right air gap and right yoke, and another permanent magnet circuit is through permanent magnet, left tooth, left tooth air gap, guide rail, right tooth air gap and right tooth.And the coil windings that left and right tooth is arranged forms two independent magnetic circuits in left and right, one tunnel through left tooth, left tooth air gap, guide rail, left air gap to left yoke, another road through right tooth, right tooth air gap, guide rail, right air gap to right yoke, coil windings magnetic circuit and permanent magnetic circuit all have overlap in left air gap, right air gap, left tooth air gap, right tooth air gap 4 air gaps, and winding coil magnetic circuit is without permanent magnet.From prior art, square being directly proportional of the suction that magnetic field produces ferromagnetic material effect and magnetic flux, permanent magnet flux is as groundwork magnetic flux, electromagnetism is logical as regulating magnetic flux, and after permanent magnet flux superposition electromagnetism is logical, the resultant magnetic field in the air gap of left and right can have a greater change, such as, left air-gap flux increases, and when right air-gap flux reduces, just can produce larger synthesis electromagnetic attraction to the right; Or left air-gap flux reduces, when right air-gap flux increases, just can produce larger synthesis electromagnetic attraction left.The raw electromagnetism of small electric miscarriage can be passed into like this lead in coil windings, regulate the resultant magnetic flux in X-direction and each air gap of Y-direction, and then independent regulation X-direction power and Y-direction electromagnetic force, realize electromagnetism noncontact guide function.
The utility model discloses a kind of composite excitation noncontact levitation and guidance system, adopt permanent magnet and electromagnet composite excitation, significantly reduce controlling electric current, low in energy consumption, can be used for the noncontact guiding of elevator, elevator.
Composite excitation noncontact levitation and guidance system of the present utility model, what its two covers coil windings was in that left yoke and right yoke formed completely encircles inside configuration, and be convenient to protection winding, fail safe is high, overall volume can be done less, and iron core utilization is high.Described permanent magnet adopts rare earth permanent-magnetic material or Nd-Fe-Bo permanent magnet material to make, and magnetic property is high, can reduce device volume further.Described left yoke, right yoke, left tooth and right tooth all adopt the good electrical pure iron of magnetic conduction or silicon steel to make, and significantly can reduce stray field.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of the utility model composite excitation noncontact levitation and guidance system.
Fig. 2 be in Fig. 1 A-A to cutaway view.
Fig. 3 is magnetic circuit schematic diagram of the present utility model.
Fig. 4 is the magnetic circuit schematic diagrames of two control coils of the present utility model when passing into " left positive the right side just " electric current.
Fig. 5 is the magnetic circuit schematic diagrames of two control coils of the present utility model when passing into " left negative right negative " electric current.
Fig. 6 is the magnetic circuit schematic diagrames of two control coils of the present utility model when passing into " left positive right negative " electric current.
Fig. 7 is the magnetic circuit schematic diagrames of two control coils of the present utility model when passing into " left negative the right side just " electric current.
Fig. 8 is dimension constraint schematic diagram of the present utility model.
Fig. 9 is the application schematic diagram of composite excitation noncontact elevator guidance system of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
A kind of composite excitation noncontact levitation and guidance system, as shown in Figure 1, 2, comprises guide rail 4 and guidance set 40, described guide rail 4 for cross section be the list structure of rectangle, described guide rail 4 is vertically fixed on well enclosure.Described guidance set 40 comprises left yoke 1, right yoke 2, permanent magnet 3, left coil winding 5, right coil windings 6, left tooth 7 and right tooth 8.Described left yoke 1 is C shape channel-shaped body, there is the horizontal upper arm and underarm that are parallel to each other, right yoke 2 is and left yoke 1 structure identical C shape channel-shaped body, the two notch relatively, be symmetrical set to form in guide rail 4 both sides and partly encircle structure, the structure full symmetric of the right and left.Arrange guide rail 4 between left yoke 1 upper arm and right yoke 2 upper arm, the side, two, left and right of guide rail 4 forms left arm air gap 9 and right arm air gap 10 respectively and between left yoke 1 and two upper arm end faces of right yoke 2; Seamlessly between left yoke 1 underarm end face and right yoke 2 underarm end face arrange rectangular permanent magnet 3, left yoke 1 and right yoke 2 are connected in one through permanent magnet 3; Left yoke 1 underarm and right yoke 2 underarm edge are symmetrical arranged left tooth 7 and the right tooth 8 of folding bar shape in direction straight up respectively, and left tooth 7 and right tooth 8 respectively corresponding cover have left coil winding 5 and right coil windings 6; Left tooth 7 is parallel with the leading flank of guide rail 4 with the top end face of right tooth 8 and to be provided with left tooth air gap 11 equal with right tooth air gap 12, two gas length.
The composite excitation noncontact elevator guidance system of the present embodiment, what its two covers coil windings was in that left yoke 1 and right yoke 2 formed completely encircles inside configuration, and be convenient to protection winding, fail safe is high, overall volume can be done less, and iron core utilization is high.
Described permanent magnet 3 adopts rare earth permanent-magnetic material or Nd-Fe-Bo permanent magnet material to make, and magnetic property is high, can reduce device volume further.
Described left yoke 1, right yoke 2, left tooth 7 and right tooth 8 all adopt the good electrical pure iron of magnetic conduction or silicon steel to make, and significantly can reduce stray field.
As shown in Figure 3, for two parallel circuitses that the magnetized permanent magnet 3 of level produces, be respectively permanent magnetism tooth magnetic circuit 31 and permanent magnetism yoke magnetic circuit 32, that is: permanent magnetism yoke magnetic circuit 31 is from permanent magnet 3s, forms loop through left yoke 1, left arm air gap 9, guide rail 4 left and right side, right arm air gap 10 and right yoke 2; Permanent magnetism tooth magnetic circuit 32, from permanent magnet 3s, forms loop through left tooth 7, left tooth air gap 11, guide rail 4 leading flank, right tooth air gap 12 and right tooth 8.When permanent magnet independent role, the left arm air gap of permanent magnetism yoke magnetic circuit 32 is the same with right arm air-gap flux size, the electromagnetic attraction equal and opposite in direction of generation, and direction is contrary, guidance set 40 opposite rail 4, be subject to X-direction to make a concerted effort be 0.And for permanent magnetism tooth magnetic circuit 31, magnetic flux enters guide rail 4 leading flank, then exit again guide rail 4 leading flank, the electromagnetic attraction that the magnetic flux in left tooth air gap 11 and right tooth air gap 12 produces is all along Y-direction, and guidance set 40 is subject to+Y-direction electromagnetic attraction.
As shown in Figure 4, left winding magnetic circuit 51 and right winding magnetic circuit 61 two independent magnetic circuits are formed during the coil windings independent role that left and right tooth is arranged, left winding magnetic circuit 51 forms loop through left tooth 7, left tooth air gap 11, guide rail 4, left arm air gap 9, left yoke 1, right winding magnetic circuit 61 forms loop through right tooth 8, right tooth air gap 12, guide rail 4, right arm air gap 10, right yoke 2, and winding coil magnetic circuit is without permanent magnet 3.Two, left and right coil windings adopts insulated copper wire coiling, around to identical, independently can pass into the electric current of different directions, and the electromagnetism forming different directions leads to.For convenience of explanation, when left coil winding passes into electric current generation+Y-direction magnetic flux, being designated as " left side just ", when passing into electric current generation-Y-direction magnetic flux, being designated as " left negative "; When right coil windings passes into electric current generation+Y-direction magnetic flux, being designated as " right side just ", when passing into electric current generation-Y-direction magnetic flux, being designated as " right negative ".
The guiding Principles of Regulation of two the solenoid windings in left and right are as follows: in Fig. 4, when two control coils pass into the same direct current of " left positive the right side just " amplitude, at left tooth, produce vertical electromagnetism upward in right tooth respectively to lead to, take the magnetic circuit shown in Fig. 3 again into consideration, known, in the Y direction, the left tooth of guidance set, homonymy air gap is only had between right tooth and guide rail, electromagnetism is logical superpose with permanent magnet after, in left tooth air gap 11, magnetic flux reduces, magnetic flux in right tooth air gap 12 increases, due to square being directly proportional of magnetic attraction force and magnetic flux, left tooth 7 suction reduces, right tooth 8 suction increases, the Y-direction synthesis suction that is subject to of two teeth is constant on the whole.And in X-direction, the resultant flux in left air gap increases, the resultant flux in right air gap reduces, the stressed increase of yoke left arm of guidance set, the stressed reduction of yoke right arm, and the synthesis suction that guidance set is subject to is+X-direction.
In Fig. 5, when two control coils pass into the same direct current of " left negative right negative " amplitude, at left tooth, produce vertical electromagnetism down in right tooth respectively to lead to, take the magnetic circuit shown in Fig. 3 again into consideration, known, in the Y direction, two of guidance set only have homonymy air gap between tooth and guide rail, electromagnetism is logical superpose with permanent magnet after, in left tooth air gap 11, magnetic flux increases, magnetic flux in right tooth air gap 12 reduces, due to square being directly proportional of magnetic attraction force and magnetic flux, left tooth 7 suction increases, right tooth 8 suction reduces, the Y-direction synthesis suction that is subject to of two teeth is constant on the whole.And in X-direction, the resultant flux in left air gap reduces, the resultant flux in right air gap increases, the stressed reduction of yoke left arm of guidance set, the stressed increase of yoke right arm, and the synthesis suction that guidance set is subject to is-X-direction.
In Fig. 6, when two control coils pass into the same direct current of " left positive right negative " amplitude, at left tooth, produce respectively in right tooth and vertically lead to vertical electromagnetism down upward, take the magnetic circuit shown in Fig. 3 again into consideration, known, in the Y direction, two of guidance set only have homonymy air gap between tooth and guide rail, electromagnetism is logical superpose with permanent magnet after, in left tooth air gap 11, magnetic flux reduces, magnetic flux in right tooth air gap 12 also reduces, Y-direction makes a concerted effort to reduce, and in X-direction, resultant flux in left air gap increases, resultant flux in right air gap increases, the synthesis suction that guidance set is subject to is 0.
In Fig. 7, when two control coils pass into the same direct current of " left negative the right side just " amplitude, produce respectively in left tooth, right tooth vertically down and vertically electromagnetism upward lead to, then take the magnetic circuit shown in Fig. 3 into consideration, known, in the Y direction, two of guidance set only have homonymy air gap between tooth and guide rail, electromagnetism is logical superpose with permanent magnet after, magnetic flux increase in left tooth air gap 11, magnetic flux in right tooth air gap 12 also increases, and Y-direction makes a concerted effort to increase.And in X-direction, the resultant flux in left air gap reduces, the resultant flux in right air gap also reduces, and the synthesis suction that guidance set is subject to is 0.
Sum up above rule, when two control coils pass into the direct current that direction is contrary, amplitude is the same, X-direction makes a concerted effort to be 0, and Y-direction is variable with joint efforts; When two control coils pass into the direct current that direction is identical, amplitude is the same, X-direction is variable with joint efforts, and Y-direction is constant with joint efforts.That is, by the sense of current in combination change two controlled winding, can the electromagnetic force of independent regulation guidance set X and Y-direction.Can contactless free relative motion between guidance set and guide rail.
When practical application, displacement transducer can be utilized to detect, and guidance set departs from the displacement of its reference position, this displacement signal is transformed into control signal by controller, this control signal amount of being transformed into two-way is controlled electric current again by power amplifier, this two-way electric current flows through two coil windings in left and right respectively, produce the suction of X-direction or Y-direction, guidance set is retracted equilbrium position.In like manner, no matter guidance set is subject to outer disturbance, up or down left to the right, control size of current in two coils and direction with the degenerative composite excitation guidance system in position by controller, regulate the size of each air-gap flux, guidance set can be kept all the time in equilbrium position.Volume of the present invention is little, lightweight, low in energy consumption, has broad application prospects in the vertically-guided such as elevator, lift occasion.
In Fig. 8, in order to reduce the leakage field of permanent magnetism tooth magnetic circuit 32, i.e. the leakage field of left tooth and right between cog, make permanent magnet flux major part from left tooth air gap and right tooth air gap process, size that must be reasonable in design, the interval d2 of left tooth and right between cog should be greater than gas length d3.Meanwhile, for reducing the magnetic Field Coupling of X-direction and Y-direction, track width d should be substantially equal with right tooth outer spacing d1 with left tooth.
Fig. 9 is the vertical view of the application example of composite excitation noncontact elevator guidance system of the present invention on elevator, on well enclosure 41, lift car 43 bilateral symmetry places two guide rails 41, as the guide rail of lift car, in Liang Ge side, car 43 top, symmetry installs non-magnetic pedestal 42 respectively, then guidance set 40 is set on pedestal 42, non-magnetic pedestal 42 can prevent the magnetic field exposure of permanent magnet 3, makes main magnetic flux flow through the yoke of guidance set 40 and tooth.Guidance set 40 and guide rail 4 match merge the gap keeping certain can free relative sliding.Two guidance sets 40 are utilized to control the state of car left and right directions and fore-and-aft direction.According to the air gap sensors installed, detect the size of gaps in X-direction, on controlled winding, pass into electric current respectively, regulate car to be returned to equilbrium position in X-direction.In the Y direction, the Y-direction electromagnetic force direction that the symmetrical two groups of guidance sets installed produce is contrary, can pass into Y-direction not of uniform size like this and regulate electric current in two groups of guidance sets, can produce making a concerted effort of+Y or-Y-direction, regulate car to be returned to equilbrium position in the Y direction.
The content be not described in detail in specification of the present invention belongs to the known prior art of professional and technical personnel in the field.
Claims (4)
1. a composite excitation noncontact levitation and guidance system, comprises guide rail (4) and guidance set (40), it is characterized in that: described guide rail (4) for cross section be the list structure of rectangle, described guide rail (4) is vertically fixed on well enclosure (41);
Described guidance set (40) comprises left yoke (1), right yoke (2), permanent magnet (3), left coil winding (5), right coil windings (6), left tooth (7) and right tooth (8); Described left yoke (1) is C shape channel-shaped body, there is the horizontal upper arm and underarm that are parallel to each other, described right yoke (2) is identical with described left yoke (1) structure, and the two C shape groove notch relatively and be symmetrical set in the both sides of guide rail (4), forms and partly encircles structure; Between the upper arm that described guide rail (4) is arranged on described left yoke (1) and the upper arm of described right yoke (2), the side, two, left and right of described guide rail (4) respectively and form left arm air gap (9) and right arm air gap (10) between described left yoke (1) and two upper arm end faces of described right yoke (2); Arrange the permanent magnet (3) of rectangle between described left yoke (1) underarm end face and right yoke (2) underarm end face, left yoke (1) and right yoke (2) are connected in one through permanent magnet (3); Left yoke (1) underarm and right yoke (2) underarm edge are symmetrical arranged described left tooth (7) and described right tooth (8) in direction straight up respectively, and left tooth (7) and right tooth (8) respectively corresponding cover have left coil winding (5) and right coil windings (6); Described left tooth (7) is parallel with the leading flank of described guide rail (4) with the top end face of described right tooth (8) and be provided with left tooth air gap (11) and right tooth air gap (12), and two gas lengths are equal.
2. a kind of composite excitation noncontact levitation and guidance system according to claim 1, it is characterized in that: described left tooth (7) and right tooth (8) are folding bar shape, the horizontal width d of two tooth top outer rim spacing d1 and guide rail (4) meets d1≤d, and two tooth top inner edge spacing d2 and left tooth air gap (11) length d3 meet d2 > d3.
3. a kind of composite excitation noncontact levitation and guidance system according to claim 1, is characterized in that: described permanent magnet (3) adopts rare earth permanent-magnetic material or Nd-Fe-Bo permanent magnet material to make.
4. a kind of composite excitation noncontact levitation and guidance system according to claim 1, is characterized in that: described left yoke (1), right yoke (2), left tooth (7) and right tooth (8) all adopt the good electrical pure iron of magnetic conduction or silicon steel to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520188975.1U CN204498022U (en) | 2015-04-01 | 2015-04-01 | A kind of composite excitation noncontact levitation and guidance system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520188975.1U CN204498022U (en) | 2015-04-01 | 2015-04-01 | A kind of composite excitation noncontact levitation and guidance system |
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| CN204498022U true CN204498022U (en) | 2015-07-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682772A (en) * | 2015-04-01 | 2015-06-03 | 河南理工大学 | Mixed-excitation non-contact levitation and guidance system |
| CN108483254A (en) * | 2018-03-20 | 2018-09-04 | 北京石油化工学院 | A kind of double drive low-load overhead traveling cranes of driven suspension |
-
2015
- 2015-04-01 CN CN201520188975.1U patent/CN204498022U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682772A (en) * | 2015-04-01 | 2015-06-03 | 河南理工大学 | Mixed-excitation non-contact levitation and guidance system |
| CN108483254A (en) * | 2018-03-20 | 2018-09-04 | 北京石油化工学院 | A kind of double drive low-load overhead traveling cranes of driven suspension |
| CN108483254B (en) * | 2018-03-20 | 2019-07-26 | 北京石油化工学院 | A kind of double drive low-load overhead traveling cranes of driven suspension |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 |