CN105300640A - Long-stroke drive coil structure for electrodynamic vibration generator - Google Patents
Long-stroke drive coil structure for electrodynamic vibration generator Download PDFInfo
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- CN105300640A CN105300640A CN201510874785.XA CN201510874785A CN105300640A CN 105300640 A CN105300640 A CN 105300640A CN 201510874785 A CN201510874785 A CN 201510874785A CN 105300640 A CN105300640 A CN 105300640A
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Abstract
The invention relates to the technical field of electrodynamic vibration generator for testing, and specifically discloses a long-stroke drive coil structure for an electrodynamic vibration generator. The long-stroke drive coil structure designs a structure for fixing a drive coil in the vibration generator as a form including upper and lower bracing frames which form a double bracing frame structure so that the drive coil can be rolled between the upper and lower bracing frames. The two bracing frames are fixed through a connection rod, and transmit the exciting force so that the connection strength after lengthening of the drive coil of the vibration generator and the transmission of force are not influenced; therefore the drive coil and the drive coil bracing frames do not release from the skeleton because of low bonding intensity between the drive coil and the drive coil bracing frames so as to prevent damaging of the drive coil; at the same time, the guiding mode of the drive coil is modified; guiding bars are respectively arranged on the drive coil bracing frames to realize overall guiding of the drive coil structure and to improve the guiding performance; and the lower guiding bar is also provided with a lead slot so that a wiring function is also provided and a service conductor of the drive coil can be led out reliably and the whole vibration generator can stably and safely work.
Description
Technical field
The present invention relates to dynamic environmental test apparatus field, be specifically related to the long stroke moving-coil structure for electric vibration table.
Background technology
At present, electric vibration table does and vibrates or impulse test, and its maximum displacement peak-to-peak value only has 100mm.When needing Large travel range vibration or the impulse test being more than 100mm, common electric vibration table just cannot meet the demands.And research and develop the shaking table of super large displacement, need the drive coil length increasing moving-coil, to ensure that moving-coil its coil in motion process, all the time in working gas gap, namely ensures that the effective turn of coil is constant.If but coil is oversize, not only can affect the transmission of exciting force, cause the decay of power, and the weight of coil self also correspondingly can increase, thus affect the cohesive strength between coil, cause coil and skeleton depart from and damage moving-coil.
In prior art, usually can adopt prolongation moving coil framework, then in the coiling of the enterprising row cutting coil of moving coil framework, the structure of targeting part adopt in the middle of linear guide poles carry out the form that leads.
As application number for " 200820199581.6 ", name are called described in " electric impact platform moving-coil support oriented device ", this invention forms primarily of front guiding support bar, rear guiding support bar and linear bearing (or roller guiding mechanism), described front guiding support bar is established by moving coil framework is fixedly stretched before its central shaft alignment, and described rear guiding support bar is established by moving coil framework is fixedly stretched after its central shaft alignment; Described linear bearing (or roller guiding mechanism) is at least two groups, front and back, and they respectively correspond to front guiding support bar stage body relative to rear guiding support bar and are fixedly connected with; Described front guiding support bar coordinates guide support with front linear bearing (or roller guiding mechanism), and rear guiding support bar coordinates guide support with rear linear bearing (or roller guiding mechanism), is formed moving-coil support oriented device with this.The problem of moving-coil guiding when although this invention solves long stroke, the guiding of linear bearing type does not limit the axial-rotation of moving-coil, and during work, moving-coil can reverse; And the guiding of roller type realizes rolling by the linear contact lay of support bar plane and roller leading, contact area is little, and lateral rigidity is not high.This device only has centre post to lead in addition, poor stability.
Therefore, the problem of this respect is solved desirable to provide a kind of long stroke moving-coil structure for electric vibration table.
Summary of the invention
The object of the invention is to provide a kind of long stroke moving-coil structure for electric vibration table, to overcome or at least to alleviate the above-mentioned defect of prior art, realizes the long stroke work that electric vibration table is stable.
For achieving the above object, the invention provides a kind of long stroke moving-coil structure for electric vibration table, comprising:
Moving-coil bracing frame, drive coil is wound between moving-coil bracing frame;
Multiple upper guide pole, described in each, one end of upper guide pole is connected with the top of described moving-coil bracing frame, and the other end is connected with moving-coil upper table surface;
Multiple lower guide pole, described in each, one end of lower guide pole is connected with the bottom of described moving-coil bracing frame, and the other end is connected with moving-coil following table;
Wherein, described moving-coil bracing frame comprises moving-coil upper support frame, moving-coil lower support frame and multiple connecting link, described moving-coil upper support frame is fixedly connected with one end of described upper guide pole, described moving-coil lower support frame is fixedly connected with one end of described lower guide pole, is fixedly connected with between described moving-coil upper support frame with moving-coil lower support frame by described connecting link.
For technique scheme, inventor also has further optimal enforcement scheme.
Preferably, described moving-coil upper support frame, moving-coil lower support frame and described multiple connecting link screw thread are fixed.
Further, described long stroke moving-coil structure comprises three described connecting links, described three connecting links be equilateral triangle distribution, and with described moving-coil upper support frame, moving-coil lower support frame respectively screw thread fix.
Preferably, described drive coil entirety turns to coil, and cementing between moving-coil upper support frame and moving-coil lower support frame.
Further, in described drive coil external pasting for improving the coil stiffening plate of coiling cohesive strength.
Further, described long stroke moving-coil structure comprises three upper guide pole, three lower guide poles, described upper guide pole is all fixedly connected with described moving-coil upper support frame, connecting link, described three upper guide poles are that equilateral triangle is distributed on described moving-coil upper support frame, described lower guide pole is all fixedly connected with described moving-coil lower support frame, connecting link, and described three lower guide poles are under equilateral triangle is distributed in described moving-coil lower support frame.
Preferably, described moving-coil upper table surface entirety becomes equilateral triangle, and has manhole in the middle part of described moving-coil upper table surface, and described upper guide pole is fixedly connected on the summit place of described equilateral triangle moving-coil upper table surface respectively.
Further, described moving-coil following table entirety becomes trident, and the angle of adjacent two edges is 120 degree, and described lower guide pole is fixedly connected on the summit place of described trident moving-coil following table respectively.
Further, described moving-coil upper support frame has screw, described upper guide pole is threaded with described moving-coil upper support frame, has screw equally on described moving-coil lower support frame, and described lower guide pole is threaded with described moving-coil lower support frame.
Further, described moving-coil upper support frame has can through the through hole of guide pole on described, on described connecting link, the position of corresponding above-mentioned through hole has screw, described upper guide pole is fixed in connecting link through after moving-coil upper support frame by screw thread, so realize described upper guide pole and described moving-coil upper support frame, being fixedly connected with of connecting link three, described three upper guide poles are that equilateral triangle is distributed on described moving-coil upper support frame; Described moving-coil lower support frame has can through the through hole of described lower guide pole, on described connecting link, the position of corresponding above-mentioned through hole has screw, described lower guide pole is fixed in connecting link through after moving-coil lower support frame by screw thread, so realize described lower guide pole and described moving-coil lower support frame, being fixedly connected with of connecting link three, described three lower guide poles are that equilateral triangle is distributed in below described moving-coil lower support frame.
Preferably, two lower guide poles in described multiple lower guide pole are provided with the wire lead slot for cabling, and the line of described drive coil causes described moving-coil following table respectively by described two lower guide poles.
Relative to scheme of the prior art, advantage of the present invention is:
Long stroke moving-coil structure for electric vibration table provided by the present invention, the structure being used for fixed drive coil in shaking table is designed to the form of upper and lower two bracing frames, form dual-gripper shelf structure, thus between upper and lower bracing frame coiling drive coil, fixed by connecting link again between two bracing frames and transmit exciting force, thus make the transmission of the strength of joint after the lengthening of shaking table drive coil and power unaffected, ensure to depart from skeleton because cohesive strength is not enough between drive coil and moving-coil bracing frame, avoid the damage of moving-coil.
Simultaneously, present invention improves over the guiding form of moving-coil, at moving-coil bracing frame, the entirety guiding that guide pole realizes moving-coil structure is set up and down respectively, steering capability is better, and lower guide pole is also provided with wire lead slot, have both cabling performance, the electric power conductor of drive coil has been drawn reliably, ensure the work of shaking table monolithic stability safety.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of long stroke moving-coil structure described in one embodiment of the invention;
Fig. 2 is the partial enlarged drawing in circle shown in long stroke moving-coil structure described in Fig. 1;
Fig. 3 is the A direction view of the moving-coil structure of long stroke shown in Fig. 1, the namely structural representation of moving-coil upper table surface;
Fig. 4 is the B direction view of the moving-coil structure of long stroke shown in Fig. 1, the namely structural representation of moving-coil following table.
Reference numeral:
| 1 | Moving-coil upper table surface | 2 | Upper guide pole |
| 3 | Moving-coil upper support frame | 4 | Connecting link |
| 5 | Drive coil | 6 | Moving-coil lower support frame |
| 7 | Lower guide pole | 8 | Wire lead slot |
| 9 | Manhole | 10 | Moving-coil following table |
| 11 | Coil stiffening plate |
Embodiment
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
According to the long stroke moving-coil structure for electric vibration table of the present invention one broad embodiment, as shown in Figure 1, it comprises:
Moving-coil bracing frame, drive coil 5 is wound between moving-coil bracing frame;
Multiple upper guide pole 2, described in each, one end of upper guide pole 2 is connected with the top of described moving-coil bracing frame, and the other end is connected with moving-coil upper table surface 1;
Multiple lower guide pole 7, described in each, one end of lower guide pole 7 is connected with the bottom of described moving-coil bracing frame, and the other end is connected with moving-coil following table 10;
Wherein, described moving-coil bracing frame comprises moving-coil upper support frame 3, moving-coil lower support frame 6 and multiple connecting link 4, described moving-coil upper support frame 3 is fixedly connected with one end of described upper guide pole 2, described moving-coil lower support frame 6 is fixedly connected with one end of described lower guide pole 7, is fixedly connected with between described moving-coil upper support frame 3 with moving-coil lower support frame 6 by described connecting link 4; Described drive coil 5 entirety turns to coil, and cementing between moving-coil upper support frame 3 and moving-coil lower support frame 6.
The structure being used for fixed drive coil 5 in shaking table is designed to the form of upper and lower two bracing frames by the present embodiment, form dual-gripper shelf structure, coiling drive coil 5 between upper moving-coil bracing frame and lower moving-coil bracing frame again, like this when shaking table works, exciting force is transmitted by the connecting link 4 of both connections between two moving-coil bracing frames, thus make the transmission of the strength of joint after shaking table drive coil 5 lengthening and power unaffected, ensure to depart from skeleton because cohesive strength is not enough between drive coil 5 and moving-coil bracing frame, the damage of moving-coil can be avoided, and then ensure the stable of long stroke electric vibration table, the work of safety.
In order to ensure the strength of joint between moving-coil bracing frame and connecting link 4, and guarantee integral rigidity, described moving-coil upper support frame 3, moving-coil lower support frame 6 are fixed with described multiple connecting link 4 screw thread, like this moving-coil bracing frame and connecting link 4 are formed an entirety, so not only strength of joint is high, and at utmost can ensure the reliable delivery of exciting force.
In described moving-coil structure, generally include multiple namely at least three connecting links 4, be connected to ensure between moving-coil upper support frame 3 with moving-coil lower support frame 6 reliable, and ensure the stability of moving-coil structure.Described long stroke moving-coil structure comprises three described connecting links 4 in the present embodiment, and described three connecting links 4 are distribution in equilateral triangle, and with described moving-coil upper support frame 3, moving-coil lower support frame 6 respectively screw thread fix.
In order to improve the coiling intensity of drive coil 5 further, can in described drive coil 5 external pasting for improving the coil stiffening plate 11 of coiling cohesive strength.
Long stroke moving-coil structure described by the present embodiment comprises three upper guide pole 2, three lower guide poles 7, described moving-coil upper support frame 3 has screw, described upper guide pole 2 is threaded with described moving-coil upper support frame 3, on described moving-coil lower support frame 6, have screw equally, described lower guide pole 7 is threaded with described moving-coil lower support frame 6.
In order to improve the stable connection degree of guide pole and bracing frame better, following technical scheme can be adopted, as shown in Figure 2, described moving-coil upper support frame 3 has can through the through hole of guide pole 2 on described, on described connecting link 4, the position of corresponding above-mentioned through hole has screw, described upper guide pole 2 is fixed in connecting link 4 through after moving-coil upper support frame 3 by screw thread, so realize described upper guide pole 2 and described moving-coil upper support frame 3, being fixedly connected with of connecting link 4 three, described three upper guide poles 2 are distributed on described moving-coil upper support frame 3 in equilateral triangle; Described moving-coil lower support frame 6 has can through the through hole of described lower guide pole 7, on described connecting link 4, the position of corresponding above-mentioned through hole has screw, described lower guide pole 7 is fixed in connecting link 4 through after moving-coil lower support frame 6 by screw thread, so realize described lower guide pole 7 and described moving-coil lower support frame 6, being fixedly connected with of connecting link 4 three, described three lower guide poles 7 are distributed in below described moving-coil lower support frame 6 in equilateral triangle.
Two in described three lower guide poles 7 lower guide poles 7 use as lead wire lever simultaneously, and be provided with the wire lead slot for cabling thereon, the line of described drive coil 5 causes described moving-coil following table 10 respectively by described two lower guide poles 7.
Certainly, the quantity of upper guide pole 2, lower guide pole 7 can adjust, but usually should not be less than three, and preferably equal with the quantity of connecting link 4, can further improve moving-coil structure connective stability and rigidity like this.
Visible the present embodiment improves the guiding form of moving-coil, at moving-coil bracing frame, the entirety guiding that guide pole realizes moving-coil structure is set up and down respectively, steering capability is better, and lower guide pole 7 is also provided with wire lead slot, have both cabling performance, the electric power conductor of drive coil 5 is drawn reliably, ensures the work of shaking table monolithic stability safety.
As shown in Figure 3, described moving-coil upper table surface 1 entirety becomes equilateral triangle, and has manhole 9 in the middle part of described moving-coil upper table surface 1, and described upper guide pole 2 is fixedly connected on the summit place of described equilateral triangle moving-coil upper table surface 1 respectively.Moving-coil upper table surface 1, for installing test specimen, is designed to triangle, and middle processing circular hole, not only can alleviate the weight of movable part, and can ensure Stability Analysis of Structures, uniform force.
As shown in Figure 4, described moving-coil following table 10 entirety becomes trident, and the angle of adjacent two edges is 120 degree, and described lower guide pole 7 is fixedly connected on the summit place of described trident moving-coil following table 10 respectively.Moving-coil following table 10 is designed to trident, both weight reduction, ensures Stability Analysis of Structures again.
Be understandable that, the structure of moving-coil upper table surface 1, moving-coil following table 10 is not fixing, can also be designed to circle, square etc., as long as guarantee equipment can normally work.
Finally it is to be noted: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1., for a long stroke moving-coil structure for electric vibration table, comprising:
Moving-coil bracing frame, drive coil is wound between moving-coil bracing frame;
Multiple upper guide pole, described in each, one end of upper guide pole is connected with the top of described moving-coil bracing frame, and the other end is connected with moving-coil upper table surface;
Multiple lower guide pole, described in each, one end of lower guide pole is connected with the bottom of described moving-coil bracing frame, and the other end is connected with moving-coil following table;
Wherein, described moving-coil bracing frame comprises moving-coil upper support frame, moving-coil lower support frame and multiple connecting link, described moving-coil upper support frame is fixedly connected with one end of described upper guide pole, described moving-coil lower support frame is fixedly connected with one end of described lower guide pole, is fixedly connected with between described moving-coil upper support frame with moving-coil lower support frame by described connecting link.
2. the long stroke moving-coil structure for electric vibration table according to claim 1, is characterized in that, described moving-coil upper support frame, moving-coil lower support frame and described multiple connecting link screw thread are fixed.
3. the long stroke moving-coil structure for electric vibration table according to claim 2, it is characterized in that, described long stroke moving-coil structure comprises three described connecting links, described three connecting links be equilateral triangle distribution, and with described moving-coil upper support frame, moving-coil lower support frame respectively screw thread fix.
4. the long stroke moving-coil structure for electric vibration table according to claim 1, is characterized in that, described drive coil entirety turns to coil, and cementing between moving-coil upper support frame and moving-coil lower support frame.
5. the long stroke moving-coil structure for electric vibration table according to claim 4, is characterized in that, in described drive coil, external pasting is for improving the coil stiffening plate of coiling cohesive strength.
6. the long stroke moving-coil structure for electric vibration table according to claim 1 to 5 any one, it is characterized in that, described long stroke moving-coil structure comprises three upper guide pole, three lower guide poles, described upper guide pole is all fixedly connected with described moving-coil upper support frame, connecting link, described three upper guide poles are that equilateral triangle is distributed on described moving-coil upper support frame, described lower guide pole is all fixedly connected with described moving-coil lower support frame, connecting link, and described three lower guide poles are under equilateral triangle is distributed in described moving-coil lower support frame.
7. the long stroke moving-coil structure for electric vibration table according to claim 6, it is characterized in that, described moving-coil upper table surface entirety becomes equilateral triangle, and manhole is had in the middle part of described moving-coil upper table surface, described upper guide pole is fixedly connected on the summit place of described equilateral triangle moving-coil upper table surface respectively.
8. the long stroke moving-coil structure for electric vibration table according to claim 6, it is characterized in that, described moving-coil following table entirety becomes trident, and the angle of adjacent two edges is 120 degree, and described lower guide pole is fixedly connected on the summit place of described trident moving-coil following table respectively.
9. the long stroke moving-coil structure for electric vibration table according to claim 6, it is characterized in that, described moving-coil upper support frame has screw, described upper guide pole is threaded with described moving-coil upper support frame, on described moving-coil lower support frame, have screw equally, described lower guide pole is threaded with described moving-coil lower support frame;
Preferably, described moving-coil upper support frame has can through the through hole of guide pole on described, on described connecting link, the position of corresponding above-mentioned through hole has screw, described upper guide pole is fixed in connecting link through after moving-coil upper support frame by screw thread, so realize described upper guide pole and described moving-coil upper support frame, being fixedly connected with of connecting link three, described three upper guide poles are that equilateral triangle is distributed on described moving-coil upper support frame; Described moving-coil lower support frame has can through the through hole of described lower guide pole, on described connecting link, the position of corresponding above-mentioned through hole has screw, described lower guide pole is fixed in connecting link through after moving-coil lower support frame by screw thread, so realize described lower guide pole and described moving-coil lower support frame, being fixedly connected with of connecting link three, described three lower guide poles are that equilateral triangle is distributed in below described moving-coil lower support frame.
10. the long stroke moving-coil structure for electric vibration table according to claim 1, it is characterized in that, two lower guide poles in described multiple lower guide pole are provided with the wire lead slot for cabling, and the line of described drive coil causes described moving-coil following table respectively by described two lower guide poles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510874785.XA CN105300640B (en) | 2015-12-03 | 2015-12-03 | For the long stroke moving-coil structure of electric vibration table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510874785.XA CN105300640B (en) | 2015-12-03 | 2015-12-03 | For the long stroke moving-coil structure of electric vibration table |
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| CN105300640A true CN105300640A (en) | 2016-02-03 |
| CN105300640B CN105300640B (en) | 2018-06-26 |
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| CN112098028A (en) * | 2020-09-14 | 2020-12-18 | 浙江埃特斯力试验设备有限公司 | Stroke-variable precision moving coil for vibrating table |
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| Publication number | Publication date |
|---|---|
| CN105300640B (en) | 2018-06-26 |
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