CN202023367U - Positioning structure using magnetic force to fix T-steel - Google Patents
Positioning structure using magnetic force to fix T-steel Download PDFInfo
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- CN202023367U CN202023367U CN2011201151937U CN201120115193U CN202023367U CN 202023367 U CN202023367 U CN 202023367U CN 2011201151937 U CN2011201151937 U CN 2011201151937U CN 201120115193 U CN201120115193 U CN 201120115193U CN 202023367 U CN202023367 U CN 202023367U
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Abstract
The utility model relates to the technical field of dies in T-beam pouring construction, in particular to a positioning structure using magnetic force to fix T-steel, which relates to the positioning of the T-steel in a steel die during T-beam pouring construction, and is characterized in that a magnetic force box capable of producing a magnetic field or capable of changing the direction of the magnetic field is fixedly connected with and arranged on the outer side of the steel die; and the bottom of the magnetic force box is attached to part of the surface of an exposed part of a web plate of the T-steel. The positioning structure has the advantages that through arranging the magnetic force box and utilizing a principle that magnets magnetically attracts ferric substances, the T-steel and the steel die can be positioned and fixed through the magnetic force without the need of punching holes, so size leakage can be effectively prevented, the rigidity and the appearance of the steel die are not destroyed at the same time, the operation is simpler, and the die can be removed conveniently.
Description
Technical field
The utility model relates to technical field of mold in the T beam casting and constructing, is specifically related to the fixedly location structure of T steel of a kind of magnetic force.
Background technology
At present in the punching block casting and constructing, adopt bolt to connect between punching block and T steel usually, several bolts hole both had been set on punching block, the corresponding punching block of T steel position is also mated bolt hole is set, and by bolt punching block and T steel is fixed together.Though this fixed form is firm, destroyed the stiffness of punching block, operate also more complicated, easy spillage, form removal is extremely inconvenient, also influences outward appearance simultaneously.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, the fixedly location structure of T steel of a kind of magnetic force is provided, this location structure passes through in punching block arranged outside one magnetic box, utilize the principle of magnet magnetic irony object, need not punch to make between T steel and the punching block and come positioning and fixing by magnetic force.
The utility model purpose realizes being finished by following technical scheme:
A kind of magnetic force is the location structure of T steel fixedly, described location structure relates to the location of T steel in punching block in the T beam casting and constructing, it is characterized in that: fixedly connected being provided with in the described punching block outside can produce the magnetic box that magnetic field maybe can change magnetic direction, fits between the local surfaces of the web exposed parts of described magnetic box bottom and described T steel.
Described punching block surface is provided with the groove that a part is equipped with described T steel, and the shape of the shape of described groove and described T steel and described punching block contact surface matches.
Described magnetic box reaches the core body of being located at described enclosure interior turnably by a housing and constitutes, the fixedly connected described punching block of described housing one side, described housing is the Kazakhstan furan structure that two magnetic conduction halfbodies constitute, between described two magnetic conduction halfbodies by be located at two of its end not the magnetic conduction spacer block be connected and fixed, described two not between the magnetic conduction spacer block line perpendicular to the web of described T steel; Described core body is turned by magnet and the magnetic conduction that is symmetrically fixed on the described magnet two magnetic poles outside and is constituted, and described two magnetic conductions are turned by described magnet at interval, described magnetic conduction turn have with the cambered surface of the cavity coupling of described housing and and housing fit tightly.
Described enclosure interior has the cylindrical shape cavity.
Described magnetic blow out centre is equipped with a rotating shaft that axially is provided with in described magnetic box cavity.
The local surfaces of described magnetic box can become the magnetic force absorption surface, fits between the local surfaces of described magnetic force absorption surface and T steel web exposed parts.
Described magnetic box comprises that one is provided with the rotary fixing device of magnet and the base of a soft magnetism material, and described rotary fixing device is arranged at the punching block outside turnably so that the pole pair of described magnet should described base and magnetic pole of making its magnetization constitute described magnetic force absorption surface/described magnet departs from described base and demagnetize.
Described base two ends vertically are connected with vertical affixed side plate with described punching block respectively, and described two side plates are hinged respectively in described rotary fixing device end.
The utility model has the advantages that: by a magnetic box is set, utilize the principle of magnet magnetic iron material, need not punch, can make between T steel and the punching block and come positioning and fixing by magnetic force, can not only effectively prevent spillage, do not destroy simultaneously the stiffness and the image appearance of punching block, and operation is comparatively simple, makes things convenient for form removal.
Description of drawings
Fig. 1 is the structure chart of location structure under the magnetic box starting state among the utility model embodiment 1;
Fig. 2 is the structure chart of location structure under the magnetic box closed condition among the utility model embodiment 1;
Fig. 3 is the structure chart of location structure under the magnetic box starting state among the utility model embodiment 2;
Fig. 4 is the structure chart of location structure under the magnetic box closed condition among the utility model embodiment 2;
Fig. 5 is the structure chart of location structure among the utility model embodiment 3;
Fig. 6 is the utility model vibrating head frequency curve chart.
The specific embodiment
Referring to figs. 1 through Fig. 6, to a kind of magnetic force of the utility model fixedly the location structure of T steel specifically describe as follows:
, always represent respectively with reference to label to shown in Figure 6 as Fig. 1: punching block 1, groove 11, hole 12, magnetic box 2, box body 21, side plate 211, side plate 212, rotary fixing device 22, magnet 23, base 24, magnetic switch 25, housing 26, magnetic conduction halfbody 261, magnetic conduction halfbody 262, non-magnetizer 263, non-magnetizer 264, core body 27, magnetic conduction turn 271, magnetic conduction is turned 272, magnet 273, rotating shaft 274, electromagnet 275, Switching Power Supply 276, T steel 3, web 31.
Location structure described in the present embodiment relates generally to the stationary positioned of 3 of punching block 1 in the bridge casting and constructing and T steel.Wherein, offer the hole 12 with the web form fit of T steel 3 on the punching block 1, T steel 3 is at patchhole 12 and finish the stationary positioned that had both realized himself after fixing.Simultaneously, offer a groove 11 near 12 places, hole on punching block 1, the shape of this groove 11 and T steel 3 match with punching block 1 joint place shape, are fastened in the groove 11 when making T steel 3 patchholes 12.Fixedly realizing by magnetic force fixed device between punching block 1 and the T steel 3 below is described in detail for location structure by two embodiment:
Embodiment 1:
Referring to Fig. 1-2, in present embodiment 1, magnetic force fixed device is a magnetic box 2.This magnetic box 2 is made of a box body 21, a rotary fixing device 22, a magnet 23 and a magnetic switch 25.Wherein, magnet 23 can be strip or columned permanent magnetic iron.Box body 21 is fixedly welded on T steel 3 outsides near 12 places, hole, and when T steel 3 inserted punching block 1, the one side of box body 21 was fitted with the web 31 of T steel 3, and the one side of fitting with T steel 3 on this box body 21 is the base 24 of magnetic box 2.The material of base 24 is a soft magnetic materials, so-called soft magnetic materials, the magnetic material that had both had low-coercivity for magnetic induction intensity and magnetic polarization intensity, can realize the maximum intensity of magnetization with minimum external magnetic field, be easy to magnetization, also be easy to demagnetization, as ferro-silicium (silicon steel sheet) and various soft magnetic ferrites etc.Rotary fixing device 22 is rotating to be fixedly installed on respectively on the side plate 211 and side plate 212 of box body 21, side plate 211, side plate 212 are vertically set on the base 24, magnetic switch 25 is installed in side plate 212 outsides and is connected with rotary fixing device 22 1 ends, magnet 23 middle parts are fixedly installed on the rotary fixing device 22, rotation magnetic force switch 25 driven rotary fastening devicess 22 and magnet 23 rotate in box body 21, so that the magnetic pole of magnet 23 is close or away from base 24, make it magnetization or demagnetization.
With reference to figure, 1, Fig. 2, when using magnetic force fixed device, the outside that earlier magnetic box 2 is welded on punching block 1 is near 12 places, hole, and makes base 24 adjacent bores 12, before the cast with T steel 3 patchholes 12 and web 31 is fastened in the groove 11, rotation magnetic force switch 25 is to opening state, then the magnetic pole of magnet 23 (one of the N utmost point or S utmost point) will be corresponding and magnetizes base 24, produces strong magnetic force, thereby web 31 absorption of T steel 3 are fixing.During the moulding by casting form removal, the action that repeats out rotates to off status with magnetic switch 25, then the magnetic pole of magnet 23 departs from base 24 until parallel, because the magnetic line of force of magnet 23 concentrates on the two poles of the earth, and the middle part magnetic line of force is sparse relatively, base 24 demagnetizations this moment, the magnetic force of absorption T steel 3 weakens, thus form removal easily.It should be noted that: the term that uses in present specification: " demagnetization " is defined as meaning when magnet 23 middle parts during corresponding to base 24 hereby, and base 24 is not magnetized and state that magnetic force weakens substantially, but not the state that loses magnetism fully.
Because the magnet of different size 23 can produce different magnetic force inductions, specifications parameter at the required magnet 23 of the utility model describes, after T steel 3 is adsorbed onto punching block 1 by magnetic force, in order not make it in the process of building, be vibrated, the position is offset, perhaps drop, will make magnetic force (antivibration power) greater than suffered external force in the casting process.
Location structure in the present embodiment, in the planeness of guaranteeing punching block 1 and T steel 3 self, under the prerequisite of verticality, mainly utilized the very very weak and soft magnetic materials easy magnetization in magnetic field between persistent erection of magnet 23 two-stage magnetic fields, easily demagnetization also can realize the characteristics of the maximum intensity of magnetization with minimum external magnetic field, installation personnel only need be put into T steel 3 groove 11 of punching block 1, open the magnetic switch 25 on the magnetic box 2, what T steel 3 just can be realized atresiaization is fixed on punching block 1, can effectively make things convenient for and install and prevent spillage, shut magnetic switch 25 during dismounting and just can easily dismantle punching block 1, thereby significantly reduced the labour intensity that mounts and dismounts punching blocks 1.
Embodiment 2:
Shown in Fig. 3-4, in the present embodiment 2, magnetic box 2 has the core bodys 27 that the housing 26 of cylindrical shape cavity and movable be set in the housing 26 by an inside and constitutes.Wherein, housing 26 is constituted by 261,262 and two non-magnetizers 263,264 of magnetic conduction halfbody for having the Kazakhstan furan structure of rectangular-shaped external form.Two grooves that magnetic conduction halfbody 261,262 inboards all have circular arc, the end of this groove upper and lower projection is the end face in the furan structure of common Kazakhstan, and two magnetic conduction halfbody 261,262 ends are by two non-magnetizer 263,264 fixedly connected formation one.This breathes out the web 31 of furan structure split surface perpendicular to described T steel 3.Described core body 27 is turned by magnet 273 and the magnetic conduction that is symmetrically fixed on 273 liang of magnetic poles of described magnet outside and 271,272 is constituted, two 271,272 cambered surfaces that have with the cylindrical shape cavity of described housing 26 coupling of turning, be equipped with rotating shaft 274 in the magnet 273, its effect is identical with rotary fixing device 22 among the embodiment 1, does not repeat them here.
In conjunction with the said apparatus structure, below be described in detail for the operating principle of embodiment 2 magnetic box:
Referring to Fig. 3, because non-magnetizer 263 that non-magnet material constitute and non-magnetizer 264 with magnetic conduction halfbody 262 intercept magnetic conduction halfbody 261 come when working for magnet 273 this moment.So when magnetic circuit when come out in magnet 273 left sides, through magnetic conduction halfbody 261, non-magnetizer 263(non-magnetizer 264) to magnetic conduction halfbody 262, the magnetic resistance of getting back to magnet 273 the right magnetic poles will be far longer than magnetic circuit for to come out from magnet 273 left sides, turn 271 through magnetic conduction, magnetic conduction halfbody 261 is to web 31, arrive magnetic conduction halfbody 262 again, magnetic conduction 272 magnetic resistance of getting back to magnet 273 the right of turning.So most of magnetic line of force is all from magnet 273-magnetic conduction 271-magnetic conduction halfbody 261-web 31-magnetic conduction halfbody 262-magnetic conduction 272-magnet 273 these magnetic circuit processes of turning of turning, thereby the T steel is produced magnetic force.
When magnetic switch was threaded to off status, rotating shaft 274 drove that magnet 273, magnetic conduction turn 271, magnetic conduction is turned 272 rotations, and magnetic box situation inside as shown in Figure 4.A permanent magnet magnetic circuit part is come out from magnet 273 tops, turns 271 through magnetic conduction, magnetic conduction halfbody 261, magnetic conduction is turned and 272 is got back to magnet 273 bottoms, and some comes out from magnet 273 tops, turns 271 through magnetic conduction, magnetic conduction halfbody 262, magnetic conduction are turned and 272 are got back to magnet 273 bottoms.So do not have the magnetic line of force to pass through from web 31 this moment, and web 31 is not produced magnetic force.
Embodiment 3:
Referring to Fig. 5, magnetic box 2 structure fundamental sum embodiment 1 are identical in the present embodiment, has the base 24 that easily is magnetized equally, its difference is permanent magnet and whirligig have been replaced to electromagnet 275, electromagnet 275 is fixed in the box body 21, start generation magnetic field by Switching Power Supply 276, make base 24 magnetization or demagnetization, also can reach the effect of above-mentioned magnet 23 magnetic location.This kind structure mainly can be applicable in the large-scale steel spare, especially when permanent magnet can not satisfy requiring of magnetic force.
For the connection location structure of above three kinds of embodiment, being calculated as follows of its bonding strength:
Commonly used is the 50ZN vibrating head, and frequency is that 200HZ, amplitude are 1mm, weight 5kg.
Frequency curve chart with reference to vibrating head among Fig. 6:
When at I and II, the acceleration of gravity of vibrating head is 0 (m/s),
T=I/f
1/4×T=1/4×1/200=1/800(s)
I
During II, according to the conservation of energy
m×g×H=1/2mv2
v=(2×g×H)^0.5=0.14(m/s)
II
During III, according to the conservation of momentum
m×v=F×t t=1/4×T
F=m×v/t=5×0.14/1/800=560(N)
Vibration bastinade average power on object is 560N (57.1kg);
So total stressed F=(57.1+16+17) * 9.8=882.98 (N)
Magnetic force calculates:
F is a magnetic force, gets 883 (N)
B is that permanent magnet surfaces remanent magnetism (unit: the T of tesla), can get following several, and the difference according to material decides S by the material of B;
Draw through tabling look-up and to meet permanent magnet surfaces remanent magnetism traditional material:
The material remanent magnetism of aluminium nickel cobalt is (strontium ferrite 0.8-1.4) T;
The material remanent magnetism of barium strontium ferrite is (0.2-0.44) T;
The novel alloy material;
B: get 0.7(T temporarily)
S is the SU: ㎡ of contact,
Draw S ≈ 0.003 (㎡ as calculated)
Can adjust description of materials according to the size of contact area.
Saturation induction density Bs ≈ 1.25(T)
Saturation induction density Bs so〉permanent magnet surfaces remanent magnetism B, can obtain conclusion thus: when between the two magnetic force for 0.7 (T), both can use.
More than specific embodiment of the utility model is described in detail, but it is as example, the utility model is not restricted to specific embodiment described above.
Claims (8)
1. the fixing location structure of T steel of a magnetic force, described location structure relates to the location of T steel in punching block in the T beam casting and constructing, it is characterized in that: fixedly connected being provided with in the described punching block outside can produce the magnetic box that magnetic field maybe can change magnetic direction, fits between the local surfaces of the web exposed parts of described magnetic box bottom and described T steel.
2. a kind of magnetic force according to claim 1 is the location structure of T steel fixedly, it is characterized in that: described punching block surface is provided with the groove that a part is equipped with described T steel, and the shape of the shape of described groove and described T steel and described punching block contact surface matches.
3. a kind of magnetic force according to claim 1 is the location structure of T steel fixedly, it is characterized in that: described magnetic box reaches the core body of being located at described enclosure interior turnably by a housing and constitutes, the fixedly connected described punching block of described housing one side, described housing is the Kazakhstan furan structure that two magnetic conduction halfbodies constitute, between described two magnetic conduction halfbodies by be located at two of its end not the magnetic conduction spacer block be connected and fixed, described two not between the magnetic conduction spacer block line perpendicular to the web of described T steel; Described core body is turned by magnet and the magnetic conduction that is symmetrically fixed on the described magnet two magnetic poles outside and is constituted, and described two magnetic conductions are turned by described magnet at interval, described magnetic conduction turn have with the cambered surface of the cavity coupling of described housing and and housing fit tightly.
4. a kind of magnetic force according to claim 3 is the location structure of T steel fixedly, it is characterized in that: described enclosure interior has the cylindrical shape cavity.
5. a kind of magnetic force according to claim 3 is the location structure of T steel fixedly, it is characterized in that: described magnetic blow out centre is equipped with a rotating shaft that axially is provided with in described magnetic box cavity.
6. a kind of magnetic force according to claim 1 is the location structure of T steel fixedly, it is characterized in that: the local surfaces of described magnetic box can become the magnetic force absorption surface, fits between the local surfaces of described magnetic force absorption surface and T steel web exposed parts.
7. a kind of magnetic force according to claim 6 is the location structure of T steel fixedly, it is characterized in that: described magnetic box comprises that one is provided with the rotary fixing device of magnet and the base of a soft magnetism material, and described rotary fixing device is arranged at the punching block outside turnably so that the pole pair of described magnet should described base and magnetic pole of making its magnetization constitute described magnetic force absorption surface/described magnet departs from described base and demagnetize.
8. a kind of magnetic force according to claim 7 is the location structure of T steel fixedly, it is characterized in that: described base two ends vertically are connected with vertical affixed side plate with described punching block respectively, and described two side plates are hinged respectively in described rotary fixing device end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201151937U CN202023367U (en) | 2011-04-19 | 2011-04-19 | Positioning structure using magnetic force to fix T-steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201151937U CN202023367U (en) | 2011-04-19 | 2011-04-19 | Positioning structure using magnetic force to fix T-steel |
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| CN202023367U true CN202023367U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201151937U Expired - Lifetime CN202023367U (en) | 2011-04-19 | 2011-04-19 | Positioning structure using magnetic force to fix T-steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182304A (en) * | 2011-04-19 | 2011-09-14 | 中铁二十四局集团有限公司 | Positioning structure for fixing T-shaped steel via magnetic force |
-
2011
- 2011-04-19 CN CN2011201151937U patent/CN202023367U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182304A (en) * | 2011-04-19 | 2011-09-14 | 中铁二十四局集团有限公司 | Positioning structure for fixing T-shaped steel via magnetic force |
| CN102182304B (en) * | 2011-04-19 | 2013-03-27 | 中铁二十四局集团有限公司 | Positioning structure for fixing T-shaped steel via magnetic force |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111102 Effective date of abandoning: 20130327 |
|
| RGAV | Abandon patent right to avoid regrant |