CN201008832Y - Internally magnetic type electromagnetism exciting apparatus - Google Patents
Internally magnetic type electromagnetism exciting apparatus Download PDFInfo
- Publication number
- CN201008832Y CN201008832Y CNU2007201073823U CN200720107382U CN201008832Y CN 201008832 Y CN201008832 Y CN 201008832Y CN U2007201073823 U CNU2007201073823 U CN U2007201073823U CN 200720107382 U CN200720107382 U CN 200720107382U CN 201008832 Y CN201008832 Y CN 201008832Y
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- coil
- permanent magnet
- locating shaft
- shell
- fixed bar
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Abstract
An internal magnet type electromagnetic shock excitation device comprises a shell, a coil framework, a DC coil and an AC coil, wherein the coil framework is arranged inside the shell, the AC coil and the DC coil are alternately arranged inside the coil framework, the total number of the AC coil and the DC coil is 2n+1 where n is a natural number, a shock excitation element is arranged in the middle part of the coil framework and comprises a fixed link, a permanent magnet and a locating shaft which are passing through the middle part of the coil framework, the two ends of the fixed link are connected with the locating shaft which is arranged on the two ends of the shell, the permanent magnet is left and right symmetrically arranged on the fixed link and in clearance fit with the coil framework, and the centre line of the fixed link is overlapped with the that of the coil framework. With a simple structure and an adjustable output displacement, the utility model can conveniently realize the large displacement shock excitation.
Description
(1) technical field
The utility model relates to a kind of electromagnetic exciting device.
(2) background technology
Vibration test is as the analog vibration environment, and a kind of effective means of check product reliability, fatigue resistance has been widely used in the performance examination and fatigue resistance evaluation of product.In all kinds of exciting devices, plurality of advantages such as the electromagnetic exciting device is wide with its working frequency range, the carrying scope is wide, waveform good, easy to control and gaining great popularity becomes most widely used a kind of vibration testing device.Nowadays the initial vibration test technology that grows up from aircraft industry has been widely used in fields such as automobile, building, electronics, electrical equipment.Optimal design as the vibration testing device of reliability test key equipment seems more and more important.
In the existing exciter test device, can accomplish big displacement, large-tonnage exciting, but be subjected to the restriction of hydraulic medium and moving component, generally only be used for the following low frequency exciting of 200Hz as hydraulic exciting device, and complex structure, control technology requires high; The electronic exciting device of moving-coil type for another example, the excited frequency height, but have when exporting energetically that amplitude is little, a complex structure, the uncontrollable defective of output displacement.
(3) summary of the invention
Little, the complex structure of amplitude, the uncontrollable deficiency of output displacement when overcoming the output energetically of existing electromagnetic type exciting device, the utility model provides a kind of can realize big displacement exciting, simple in structure, the adjustable Internal Magnetization Electromagnetic Excitation Device of output displacement easily.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of Internal Magnetization Electromagnetic Excitation Device, comprise shell, coil rack, dc coil, AC coil, described coil rack is installed in the enclosure, alternately arrange AC coil in the described coil rack, dc coil, the coil of described AC coil and dc coil adds up to 2n+1, n is a natural number, the middle part of described coil rack is provided with the exciting parts, described exciting parts comprise the fixed bar that passes the coil rack middle part, permanent magnet, locating shaft, fixedly connected with locating shaft in described fixed bar two ends, described locating shaft is installed in the two ends of shell, and described permanent magnet is installed on the fixed bar, described permanent magnet and coil rack matched in clearance; Described permanent magnet is symmetrically arranged on fixed bar, and the center line of described fixed bar center line and coil rack is overlapping.
As preferred a kind of scheme: described locating shaft is sleeved on the little axle sleeve, described little axle sleeve is fixedlyed connected with adjusting nut, described adjusting nut is threaded with the end cap of shell, on the described adjusting nut locking nut is installed, on the locating shaft between described little axle sleeve and the outermost permanent magnet, balancing spring is installed.
As preferred another scheme: about described locating shaft is sleeved on two little axle sleeves, described left-small-axis cover is fixedlyed connected with adjusting nut, described adjusting nut is threaded with the left end cap of shell, on the described adjusting nut locking nut is installed, on the locating shaft between described left-small-axis cover and the outermost permanent magnet, balancing spring is installed; The right-small-axis cover is fixedlyed connected with the right end cap of shell, at the shell shell additional end cap is installed, and the section of stretching out of described locating shaft is positioned at additional end cap.
As preferred another kind of scheme: described coil rack is annular, and described AC coil, dc coil are annular; Described permanent magnet is annular.
Further, the permanent magnet fixed hub is installed on the fixed bar between the adjacent permanent magnet.
Further, described AC coil is three, and described dc coil is two, described coil rack is provided with five coil installation positions, the middle part of described coil rack is an AC coil, and the AC coil both sides are dc coil, and two dc coil outsides are AC coil.
Technical conceive of the present utility model is: the interaction by alternating magnetic field and fixed magnetic field makes exciting portion produce axial excitation power, determines the initial position of exciting portion by being installed in a pair of balancing spring on the axle, and permanent magnet can drive the fixed bar dither.
The beneficial effects of the utility model mainly show: 1, can realize big displacement exciting easily; 2, simple in structure, the output displacement can be regulated by structural design; 3, control is less demanding.
(4) description of drawings
Fig. 1 is a kind of structure chart of Internal Magnetization Electromagnetic Excitation Device.
Fig. 2 is the structure chart of another kind of Internal Magnetization Electromagnetic Excitation Device.
Fig. 3 is the structure chart of the exciting parts of Fig. 2.
(5) specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1, a kind of Internal Magnetization Electromagnetic Excitation Device, comprise shell 1, coil rack 2, dc coil 3, AC coil 4, described coil rack 2 is installed in the shell 1, alternately arrange AC coil 3 in the described coil rack 2, dc coil 4, the coil of described AC coil 3 and dc coil 4 adds up to 2n+1, n is a natural number, the middle part of described coil rack 2 is provided with the exciting parts, described exciting parts comprise the fixed bar 5 that passes the coil rack middle part, permanent magnet 6, locating shaft 7, fixedly connected with locating shaft 7 in described fixed bar 5 two ends, described locating shaft 7 is installed in the two ends of shell 1, described permanent magnet 6 is installed on the fixed bar 5, described permanent magnet 6 and coil rack 2 matched in clearance; Described permanent magnet 6 is symmetrically arranged on fixed bar 5, and the center line of described fixed bar 5 center lines and coil rack 2 is overlapping.
Described locating shaft 7 is sleeved on the little axle sleeve 8, described little axle sleeve 8 is fixedlyed connected with adjusting nut 9, described adjusting nut 9 is threaded with the end cap of shell 1,9 install locking nut 10 on the described adjusting nut, and balancing spring 11 is installed on the locating shaft 9 between described little axle sleeve 8 and the outermost permanent magnet.
Described coil rack 2 is annular, and described AC coil 4, dc coil 3 are annular; Described permanent magnet 6 is annular.Permanent magnet fixed hub 12 is installed on the fixed bar between the adjacent permanent magnet 6, and permanent magnet 6 is total up to six, each side three.Described AC coil 4 is three, and described dc coil 3 is two, and described coil rack 2 is provided with five coil installation positions, and the middle part of described coil rack 2 is an AC coil, and the AC coil both sides are dc coil, and two dc coil outsides are AC coil.Coil rack 2 is made up of magnetic conductive material.
Permanent magnet polarity on the exciting parts is fixed, and the magnetic field that dc coil 3 energising backs produce has fixing polarity, and the polarity in AC coil 4 magnetic fields can dynamically change.Thus,, cause exciting parts double vibrations back and forth, the output dynamic loading because of interactional magnetic field produces axial excitation power.
Two AC line 3 circles and three AC coils 4 feed direct current and alternating current respectively by the Wiring port on the housing during work, consequent magnetostatic field, alternating magnetic field and the magnetostatic field interaction that produces by permanent magnet, make exciting portion produce axial exciting force, come the vibration frequency and the Oscillation Amplitude of corresponding change exciting portion by the frequency that changes alternating current, can be applicable to the occasions such as vibration test of back yard industry product.
Present embodiment is applied to two-way exciting device of exerting oneself.
With reference to Fig. 2, Fig. 3, about the locating shaft 7 of present embodiment is sleeved on two little axle sleeves, described left-small-axis cover is fixedlyed connected with adjusting nut 9, described adjusting nut 9 is threaded with the left end cap 13 of shell 1, locking nut 10 is installed on the described adjusting nut 9, on the locating shaft between described left-small-axis cover and the outermost permanent magnet, balancing spring 11 is installed; The right-small-axis cover is fixedlyed connected with the right end cap 14 of shell, at shell additional end cap 15 is installed, and the section of stretching out of described locating shaft 7 is positioned at additional end cap 15.Permanent magnet 6 is total up to four, each side two.
All the other structures of present embodiment are identical with embodiment 1 with the course of work.
Claims (6)
1. Internal Magnetization Electromagnetic Excitation Device, comprise shell, coil rack, dc coil, AC coil, it is characterized in that: described coil rack is installed in the enclosure, alternately arrange AC coil in the described coil rack, dc coil, the coil of described AC coil and dc coil adds up to 2n+1, n is a natural number, the middle part of described coil rack is provided with the exciting parts, described exciting parts comprise the fixed bar that passes the coil rack middle part, permanent magnet, locating shaft, fixedly connected with locating shaft in described fixed bar two ends, described locating shaft is installed in the two ends of shell, and described permanent magnet is installed on the fixed bar, described permanent magnet and coil rack matched in clearance; Described permanent magnet is symmetrically arranged on fixed bar, and the center line of described fixed bar center line and coil rack is overlapping.
2. Internal Magnetization Electromagnetic Excitation Device as claimed in claim 1, it is characterized in that: described locating shaft is sleeved on the little axle sleeve, described little axle sleeve is fixedlyed connected with adjusting nut, described adjusting nut is threaded with the end cap of shell, on the described adjusting nut locking nut is installed, on the locating shaft between described little axle sleeve and the outermost permanent magnet, balancing spring is installed.
3. Internal Magnetization Electromagnetic Excitation Device as claimed in claim 1, it is characterized in that: about described locating shaft is sleeved on two little axle sleeves, described left-small-axis cover is fixedlyed connected with adjusting nut, described adjusting nut is threaded with the left end cap of shell, on the described adjusting nut locking nut is installed, on the locating shaft between described left-small-axis cover and the outermost permanent magnet, balancing spring is installed; The right-small-axis cover is fixedlyed connected with the right end cap of shell, at the shell shell additional end cap is installed, and the section of stretching out of described locating shaft is positioned at additional end cap.
4. ask the described Internal Magnetization Electromagnetic Excitation Device of one of 1-3 as claim, it is characterized in that: described coil rack is annular, and described AC coil, dc coil are annular; Described permanent magnet is annular.
5. Internal Magnetization Electromagnetic Excitation Device as claimed in claim 4 is characterized in that: the permanent magnet fixed hub is installed on the fixed bar between the adjacent permanent magnet.
6. Internal Magnetization Electromagnetic Excitation Device as claimed in claim 5, it is characterized in that: described AC coil is three, described dc coil is two, described coil rack is provided with five coil installation positions, the middle part of described coil rack is an AC coil, the AC coil both sides are dc coil, and two dc coil outsides are AC coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201073823U CN201008832Y (en) | 2007-03-21 | 2007-03-21 | Internally magnetic type electromagnetism exciting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201073823U CN201008832Y (en) | 2007-03-21 | 2007-03-21 | Internally magnetic type electromagnetism exciting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008832Y true CN201008832Y (en) | 2008-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201073823U Expired - Lifetime CN201008832Y (en) | 2007-03-21 | 2007-03-21 | Internally magnetic type electromagnetism exciting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008832Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100574902C (en) * | 2007-03-21 | 2009-12-30 | 浙江工业大学 | Internal Magnetization Electromagnetic Excitation Device |
-
2007
- 2007-03-21 CN CNU2007201073823U patent/CN201008832Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100574902C (en) * | 2007-03-21 | 2009-12-30 | 浙江工业大学 | Internal Magnetization Electromagnetic Excitation Device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuxi Yangtong Machinery Equipment Co., Ltd. Assignor: Zhejiang University of Technology Contract fulfillment period: 2008.8.25 to 2013.8.25 Contract record no.: 2008320000888 Denomination of utility model: Internal magnet type electromagnetic vibrator Granted publication date: 20080123 License type: Exclusive license Record date: 20081013 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.25 TO 2013.8.25; CHANGE OF CONTRACT Name of requester: WUXI CITY YANGTONG MACHINARY EQUIPMENT CO., LTD. Effective date: 20081013 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070321 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070321 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |