CN203310596U - Lower guiding support device for electric vibration table - Google Patents
Lower guiding support device for electric vibration table Download PDFInfo
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- CN203310596U CN203310596U CN2013203725206U CN201320372520U CN203310596U CN 203310596 U CN203310596 U CN 203310596U CN 2013203725206 U CN2013203725206 U CN 2013203725206U CN 201320372520 U CN201320372520 U CN 201320372520U CN 203310596 U CN203310596 U CN 203310596U
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- bearing seat
- vibration table
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Abstract
A lower-guiding support device for an electric vibration table is characterized in that: the lower guiding support device is composed of a hydrostatic bearing (11) and an air spring (12); a center magnetic pole (14) is provided with a vertical oil-filling through-hole (22) corresponding to an oil-filling hole (17) of a bearing pedestal (16); the upper end mouth of the oil-filling through-hole (22) is arranged in a laying step surface (20) and is in sealed docking with the oil-filling hole (17) and the lower end mouth is arranged at the bottom of the center magnetic pole (14) and is connected with an oil inlet tube (23); an oil return hole (18), corresponding to the bearing pedestal (16), in the center magnetic pole (14) is provided with a vertical oil return through-hole (24); and the upper end mouth of the oil return through-hole (24) is arranged in the laying step surface (20) and is in sealed docking with the oil return hole (18) and the lower end mouth is arranged at the bottom of the center magnetic pole (14) and is connected with an oil return tube (25). The hydrostatic bearing is utilized for guiding and the air spring is utilized for supporting, so that the lower-guiding support has the advantages of being large in anti-eccentric torque, strong in anti-unbalance loading capacity, strong in load supporting capacity and simple in assembling and maintenance.
Description
Technical field
The utility model relates to the electric vibration testing device in environmental mechanics test, is specifically related to guiding support device under the moving-coil of electric vibration testing bench.
Background technology
Electric vibration testing bench (hereinafter to be referred as electric vibration table) is a kind of equipment that product or parts is carried out to vibration test, by such test, can evaluate the anti-seismic performance of a product, for examining this product quality that rational basis is provided, therefore now be widely used in the industries such as space flight, aviation, boats and ships, automobile, electronics, communication, household electrical appliances and instrument and meter.
The electric vibration table structure mainly is comprised of stage body, upper field coil, lower field coil, moving-coil, upper guide piece, lower guide piece etc.Stage body is comprised of magnetic cylinder ring, central magnetic pole, top crown, bottom crown, upper lid and end cover.Its principle of work is: field coil passes to DC current and produces fixed magnetic field, produces exciting force to being contained in alive moving-coil in this magnetic field, and moving-coil produces corresponding alternate motion when the moving-coil coil passes to exchange current.
Moving-coil plays very important effect in electric vibration table, it is arranged on stage body by guide piece and bracing or strutting arrangement.Guide piece is a kind of kinematic constraint mechanism, and its effect is that moving-coil is positioned and limit unnecessary transverse movement, thereby guarantees moving-coil vibration back and forth on direction of vibration.Usually in shaking table, guide piece is divided into two kinds of guide piece and lower guide pieces, and upper guide piece is positioned at the top of moving-coil, and lower guide piece is positioned at the bottom of moving-coil.And bracing or strutting arrangement plays supporting role, in order to the load on the balance moving-coil.
In prior art, lower guiding support device structure as shown in Figure 1, comprises guide wheel 1, guidepost 2 and air spring 3; Guide wheel 1 is comprised of guide wheel shaft and roller, and guide wheel shaft is fixed on central magnetic pole 4, and roller rotates around guide wheel shaft; Guidepost 2 is embedded in 1 slip of guide wheel, and the upper end of guidepost 2 connects moving-coil 5 bottom centre, and its lower end connects air spring 3(without air admission hole) end; Air spring 3(has air admission hole) end is connected with air chamber 6 tops; Air chamber 6 bottoms and bottom crown 7 are affixed.During moving-coil work, guide wheel 1 props up guidepost 2 walls, and guidepost 2 is produced to constraining force, and namely guide wheel 1 coordinates 2 pairs of moving-coils 5 of guidepost to play guide effect.3 of air springs coordinate 2 pairs of moving-coils 5 of guidepost to play a supporting role.That the existing lower guiding support device of this kind has advantages of is simple in structure, the load support ability is strong, but the defect that can not exempt from below also finding in practical application to exist: guide wheel 1 contacts for " line line " with guidepost 2, guide wheel 1 active area is little, so anti-eccentric moment is little; And owing in guide wheel 1, certainly existing gap between guide wheel shaft and roller, horizontal vibration can occur in roller in vibration processes, so laterally distortion is large.
Summary of the invention
The purpose of this utility model is to provide guiding support device under a kind of electric vibration table, to improve guiding and the support performance to moving-coil.
For achieving the above object, the first technical scheme that the utility model adopts is: guiding support device under a kind of electric vibration table, hydrostatic bearing and air spring, consist of, hydrostatic bearing and air spring are arranged in the central magnetic pole of electric vibration table along the central axis of the moving-coil of electric vibration table from top to bottom successively;
Described hydrostatic bearing is comprised of axle and bearing seat, between axle and bearing seat, exists gap to form oil pocket, and the bearing seat bottom face is provided with oil hole and the spill port communicated with oil pocket; The upper end of described axle is fixedly connected with the moving-coil of electric vibration table bottom, and the lower end of axle is connected with the upper end of air spring, and the bottom crown of the relative electric vibration table in lower end of air spring is fixedly connected with;
On the inwall of described central magnetic pole, be provided with circle placement table terrace upward corresponding to bearing seat, described bearing seat is held on this placement table terrace, and by screw, bearing seat is fixedly connected with the placement table terrace; On described central magnetic pole, offer vertical oiling through hole corresponding to oil hole, the upper port of this vertical oiling through hole is positioned on the placement table terrace and with sealing part of oil injection hole docks, and the lower port of described oiling through hole is positioned at the bottom of central magnetic pole and is connected with an oil inlet pipe; On described central magnetic pole, offer vertical oil return through-hole corresponding to spill port, the upper port of this vertical oil return through-hole is positioned on the placement table terrace and with the spill port sealing docks, and the lower port of described oil return through-hole is positioned at the bottom of central magnetic pole and is connected with a scavenge pipe.
In such scheme, through a piston plate, be connected between described axle and air spring.
For achieving the above object, the second technical scheme that the utility model adopts is: guiding support device under a kind of electric vibration table, hydrostatic bearing and air spring, consist of, hydrostatic bearing and air spring are arranged in the central magnetic pole of electric vibration table along the central axis of the moving-coil of electric vibration table from top to bottom successively;
Described hydrostatic bearing is comprised of axle and bearing seat, between axle and bearing seat, exists gap to form oil pocket, and the bearing seat bottom face is provided with oil hole and the spill port communicated with oil pocket; The upper end of described axle is fixedly connected with the moving-coil of electric vibration table bottom, and the lower end of axle is connected with the upper end of air spring, and the bottom crown of the relative electric vibration table in lower end of air spring is fixedly connected with;
On the inwall of described central magnetic pole, be provided with circle placement table terrace upward corresponding to bearing seat, described bearing seat is held on this placement table terrace, and by screw, bearing seat is fixedly connected with the placement table terrace; Oil hole corresponding to the bearing seat bottom face on described placement table terrace offers the oiling through hole, and oil hole docks with the upper end sealing of oiling through hole, and the lower end one of described oiling through hole is vertical oil inlet pipe pass-out of arranging downwards; On described placement table terrace also the spill port corresponding to the bearing seat bottom face offer oil return through-hole, the upper end sealing of spill port and oil return through-hole dock, the lower end one of described oil return through-hole is the scavenge pipe pass-out of vertical layout downwards; And, on the central magnetic pole inwall of electric vibration table, also to establish corresponding to the position of described oil inlet pipe and scavenge pipe and offer the vertical conduit of dodging, oil inlet pipe and scavenge pipe are all along the corresponding stage body bottom that conduit leads to electric vibration table of dodging.
In such scheme, through a piston plate, be connected between described axle and air spring.
The utility model design concept and effect are as follows:
The utility model supports linked together with hydrostatic bearing guiding and air spring, effectively overcome the deficiency of existing lower guide support technology in the electric vibration table application, had advantages of that anti-eccentric moment is large, offset load resistance strong, the load support ability reaches by force assembling easy to maintenance.
Utility model is that the more accurate hydrostatic bearing that leads has substituted guide wheel of the prior art, guidepost on the surface, seem simple, but in fact hydrostatic bearing and air spring are combined and are had a difficult point: this pass-out how of the in-line of hydrostatic bearing and return line.This is because air spring and the gap between central magnetic pole of the electric vibration table of ripe design are very little now, at vibration work Air spring, also can expand because of compression, the gap of original central magnetic pole is placed in-line and return line fully not, and determined that by the principle of electric vibration table central magnetic pole can not arbitrarily dwindle to increase space, in case the central magnetic pole free area dwindles, magnetic flux is diminished, probably magnetic field just can not reach the magnetic saturation state, so design core of the present utility model is how in the finite space, to arrange oil-feed and return line on hydrostatic bearing, make it not affect the performance of electric vibration table.Above-mentioned two technical schemes of the present utility model have successfully solved the in-line of hydrostatic bearing and the problem of return line pass-out, hydrostatic bearing and air spring are successfully combined and form a set of high performance lower guiding support device.
The accompanying drawing explanation
Fig. 1 is the prior art structural representation;
Fig. 2 is the utility model embodiment mono-structural representation;
Fig. 3 is the utility model embodiment bis-structural representations.
In above accompanying drawing: 1, guide wheel; 2, guidepost; 3, air spring; 4, central magnetic pole; 5, moving-coil; 6, air chamber; 7, bottom crown; 11, hydrostatic bearing; 12, air spring; 13, moving-coil; 14, central magnetic pole; 15, axle; 16, bearing seat; 17, oil hole; 18, spill port; 19, bottom crown; 20, placement table terrace; 21, screw; 22, oiling through hole; 23, oil inlet pipe; 24, oil return through-hole; 25, scavenge pipe; 26, piston plate; 27, dodge conduit; 28, air chamber.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment mono-: shown in accompanying drawing 2:
Guiding support device under a kind of electric vibration table, be comprised of hydrostatic bearing 11 and air spring 12, and hydrostatic bearing 11 and air spring 12 are arranged in the central magnetic pole 14 of electric vibration table from top to bottom successively along the central axis of the moving-coil 13 of electric vibration table.
Described hydrostatic bearing 11 is comprised of axle 15 and bearing seat 16, between axle 15 and bearing seat 16, exists gap to form oil pocket, and bearing seat 16 bottom faces are provided with oil hole 17 and the spill port 18 communicated with oil pocket.The upper end of described axle 15 is fixedly connected with the moving-coil of electric vibration table 13 bottoms, and the lower end of axle 15 is connected with the upper end of air spring 12, and specifically as shown in Figure 2, axle 15 is connected through a piston plate 26 with 12 of air springs.And the bottom crown 19 of the relative electric vibration table in lower end of air spring 12 is fixedly connected with, as Fig. 2, be specifically that bottommost in central magnetic pole 14 first is provided with an air chamber 28 for example, the base plate of this air chamber 28 extends to the periphery, base plate is fixedly connected with through screw with the bottom crown 19 of electric vibration table, and the lower end of air spring 12 (being generally that the pore end is arranged) is fixedly connected with through screw with the end face of air chamber 28.
On the inwall of described central magnetic pole 14, be provided with circle placement table terrace 20 upward corresponding to bearing seat 16, described bearing seat 16 is held on this placement table terrace 20, and by screw 21, bearing seat 16 is fixedly connected with placement table terrace 20.On described central magnetic pole 14, offer vertical oiling through hole 22 corresponding to oil hole 17, the upper port of the oiling through hole 22 that this is vertical is positioned on placement table terrace 20 and with oil hole 17 sealings docks (specifically passing through O-ring seal), and the lower port of described oiling through hole 22 is positioned at the bottom of central magnetic pole 14 and is tightly connected with an oil inlet pipe 23.On described central magnetic pole 14, offer vertical oil return through-hole 24 corresponding to spill port 18, the upper port of this vertical oil return through-hole 24 is positioned on placement table terrace 20 and with spill port 18 sealings docks (specifically passing through O-ring seal), and the lower port of described oil return through-hole 24 is positioned at the bottom of central magnetic pole 14 and is tightly connected with a scavenge pipe 25.
The present embodiment one supports linked together with hydrostatic bearing 11 guiding and air spring 12, have advantages of that anti-eccentric moment is large, offset load resistance strong, the load support ability reaches by force assembling easy to maintenance.
Embodiment bis-: shown in accompanying drawing 3:
Guiding support device under a kind of electric vibration table, by hydrostatic bearing 11 and air spring 12, formed, hydrostatic bearing 11 and air spring 12 are arranged in the central magnetic pole 14 of electric vibration table from top to bottom successively along the central axis of the moving-coil 13 of electric vibration table, with the difference of embodiment, be: the oil hole 17 corresponding to bearing seat 16 bottom faces on described placement table terrace 20 offers oiling through hole 22, oil hole 17 docks (specifically passing through O-ring seal) with the upper end sealing of oiling through hole 22, the lower end one of described oiling through hole 22 is vertical oil inlet pipe 23 pass-outs of arranging downwards, on described placement table terrace 20 also the spill port 18 corresponding to the bearing seat bottom face offer oil return through-hole 24, spill port 18 docks (specifically passing through O-ring seal) with the upper end sealing of oil return through-hole 24, and the lower end one of described oil return through-hole 24 is vertical scavenge pipe 25 pass-outs of arranging downwards.On central magnetic pole 14 inwalls of electric vibration table, also establish corresponding to the position of described oil inlet pipe 23 and scavenge pipe 25 and offer the vertical conduit 27 of dodging, oil inlet pipe 23 and scavenge pipe 25 are all along the corresponding stage body bottom that conduit 27 leads to electric vibration table of dodging.Namely, must, with the oiling through hole 22 and the oil return through-hole 24 that are not both in the present embodiment of embodiment mono-, offer to obtain much shorter than the oiling through hole 22 of embodiment mono-and oil return through-hole 24, and be directly to offer the vertical conduit 27 of dodging at central magnetic pole 14 inwalls, so that can extending upwardly to the central magnetic pole middle part, oil inlet pipe 23 and scavenge pipe 25 even with oiling through hole 22 and oil return through-hole 24, dock on top.
Other,, with embodiment mono-, repeat no more here.
The present embodiment two supports linked together equally with hydrostatic bearing 11 guiding and air spring 12, have advantages of that anti-eccentric moment is large, offset load resistance strong, the load support ability reaches by force assembling easy to maintenance.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (4)
1. guiding support device under an electric vibration table, it is characterized in that: hydrostatic bearing (11) and air spring (12), consist of, hydrostatic bearing (11) and air spring (12) are arranged in the central magnetic pole (14) of electric vibration table from top to bottom successively along the central axis of the moving-coil (13) of electric vibration table;
Described hydrostatic bearing (11) is comprised of axle (15) and bearing seat (16), between axle (15) and bearing seat (16), exists gap to form oil pocket, and bearing seat (16) bottom face is provided with oil hole (17) and the spill port (18) communicated with oil pocket; The upper end of described axle (15) is fixedly connected with moving-coil (13) bottom of electric vibration table, and the lower end of axle (15) is connected with the upper end of air spring (12), and the bottom crown (19) of the relative electric vibration table in lower end of air spring (12) is fixedly connected with;
On the inwall of described central magnetic pole (14), be provided with circle placement table terrace (20) upward corresponding to bearing seat (16), it is upper that described bearing seat (16) is held on this placement table terrace (20), and by screw (21), bearing seat (16) is fixedly connected with placement table terrace (20); Described central magnetic pole (14) is upper offers vertical oiling through hole (22) corresponding to oil hole (17), the upper port of the oiling through hole (22) that this is vertical is positioned at placement table terrace (20) above and docks with oil hole (17) sealing, and the lower port of described oiling through hole (22) is positioned at the bottom of central magnetic pole (14) and is connected with an oil inlet pipe (23); Described central magnetic pole (14) is upper offers vertical oil return through-hole (24) corresponding to spill port (18), the upper port of this vertical oil return through-hole (24) is positioned at placement table terrace (20) above and docks with spill port (18) sealing, and the lower port of described oil return through-hole (24) is positioned at the bottom of central magnetic pole (14) and is connected with a scavenge pipe (25).
2. guiding support device under electric vibration table according to claim 1 is characterized in that: through a piston plate (26), be connected between described axle (15) and air spring (12).
3. guiding support device under an electric vibration table, it is characterized in that: hydrostatic bearing (11) and air spring (12), consist of, hydrostatic bearing (11) and air spring (12) are arranged in the central magnetic pole (14) of electric vibration table from top to bottom successively along the central axis of the moving-coil (13) of electric vibration table;
Described hydrostatic bearing (11) is comprised of axle (15) and bearing seat (16), between axle (15) and bearing seat (16), exists gap to form oil pocket, and bearing seat (16) bottom face is provided with oil hole (17) and the spill port (18) communicated with oil pocket; The upper end of described axle (15) is fixedly connected with moving-coil (13) bottom of electric vibration table, and the lower end of axle (15) is connected with the upper end of air spring (12), and the bottom crown (19) of the relative electric vibration table in lower end of air spring (12) is fixedly connected with;
On the inwall of described central magnetic pole (14), be provided with circle placement table terrace (20) upward corresponding to bearing seat (16), it is upper that described bearing seat (16) is held on this placement table terrace (20), and by screw (21), bearing seat (16) is fixedly connected with placement table terrace (20); The upper oil hole (17) corresponding to bearing seat (16) bottom face of described placement table terrace (20) offers oiling through hole (22), oil hole (17) docks with the upper end sealing of oiling through hole (22), and the lower end one of described oiling through hole (22) is vertical oil inlet pipe (23) pass-out of arranging downwards; On described placement table terrace (20) also the spill port (18) corresponding to the bearing seat bottom face offer oil return through-hole (24), spill port (18) docks with the upper end sealing of oil return through-hole (24), and the lower end one of described oil return through-hole (24) is vertical scavenge pipe (25) pass-out of arranging downwards; And, on the central magnetic pole of electric vibration table (14) inwall, also establish corresponding to the position of described oil inlet pipe (23) and scavenge pipe (25) and offer the vertical conduit (27) of dodging, oil inlet pipe (23) and scavenge pipe (25) are all along the corresponding stage body bottom that conduit (27) leads to electric vibration table of dodging.
4. guiding support device under electric vibration table according to claim 3 is characterized in that: through a piston plate (26), be connected between described axle (15) and air spring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203725206U CN203310596U (en) | 2013-06-26 | 2013-06-26 | Lower guiding support device for electric vibration table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203725206U CN203310596U (en) | 2013-06-26 | 2013-06-26 | Lower guiding support device for electric vibration table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310596U true CN203310596U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203725206U Withdrawn - After Issue CN203310596U (en) | 2013-06-26 | 2013-06-26 | Lower guiding support device for electric vibration table |
Country Status (1)
| Country | Link |
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| CN (1) | CN203310596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308266A (en) * | 2013-06-26 | 2013-09-18 | 苏州苏试试验仪器股份有限公司 | Lower guide and supporting device of electric vibration table |
-
2013
- 2013-06-26 CN CN2013203725206U patent/CN203310596U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308266A (en) * | 2013-06-26 | 2013-09-18 | 苏州苏试试验仪器股份有限公司 | Lower guide and supporting device of electric vibration table |
| CN103308266B (en) * | 2013-06-26 | 2016-02-24 | 苏州苏试试验仪器股份有限公司 | Guiding support device under a kind of electric vibration table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |