CN201043928Y - Adjustable exciting gun - Google Patents
Adjustable exciting gun Download PDFInfo
- Publication number
- CN201043928Y CN201043928Y CNU2007200628285U CN200720062828U CN201043928Y CN 201043928 Y CN201043928 Y CN 201043928Y CN U2007200628285 U CNU2007200628285 U CN U2007200628285U CN 200720062828 U CN200720062828 U CN 200720062828U CN 201043928 Y CN201043928 Y CN 201043928Y
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- gun
- transmission rod
- gun barrel
- spring
- fixed
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- Expired - Lifetime
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Abstract
The utility model discloses an adjustable excitation gun, which comprises a punching head, a dowel bar, a punch hammer, a spring, a gun pipe, a gun base; wherein, one end of the gun pipe is fixed on the gun base; the dowel bar, the punch hammer and the spring are jacketed in the gun pipe in order; the spring is located in the innermost end of the gun pipe; the punch head is fixed on the dowel bar; at least one positioning hole is arranged on the dowel bar; the gun pipe is provided with a pin hole corresponding to the positioning hole of the dowel bar; the pin hole fixes the dowel bar in the gun pipe; a buckling type groove hole for the punching hammer positioning is arranged on the gun pipe; and a gunlock fixed on the punch hammer is arranged in the buckling type groove type. The utility has a single structure and a high repeating precision, is operated conveniently, and provides an ideal testing instrument for the dynamic character analysis, the modal analysis and the non damage testing of pulse excitation.
Description
Technical field
The utility model relates to a kind of exciting rifle, particularly a kind of adjustable exciting rifle that is used for Structure dynamic characteristics research.
Background technology
Pulse excitation method is a kind of important method of carrying out Structure dynamic characteristics research, compare with other excitation method: test period is short, required instrument and equipment is simple, easy to operate, need not apply rigidity and qualitative restrain to tested structure, thereby can avoid influencing by the dynamic perfromance of geodesic structure owing to getting involved the exciting rifle, be applicable to the test specimen of free constraint condition, the small-sized test specimen that can be difficult for clamping to having the complex surface shape is tested, test not only can be carried out in the laboratory, also can carry out, be convenient to the gained test findings is done further mathematical analysis at workshop or use scene.
The pulse excitation method that extensively adopts is to use " the hammering pulse excitation method " that the pulse hammer of band force transducer is knocked at present.During test, knock member, write down power pulse signal and other signal of measuring by force transducer simultaneously, analyze then with pulse hammer.
When testing, sneak into noise interferences unavoidably in the pulse signal of exciting force and the response signal of system under test (SUT) with pulse excitation method.Thereby, repeatedly knock under the same conditions, so that pass through repeatedly population mean, reduce The noise.So, in test process, how to control the center of effort position of hammer action, the size and the action direction of power has repeatable accuracy preferably, is a technical matters that urgency is to be solved.
The utility model content
For size and the action direction that solves center of effort position, power in the existing pulse excitation method is difficult to the accurately technical matters of control, the utility model provides a kind of simple in structure, easy to operate, adjustable exciting rifle that repeatable accuracy is high.
The technical scheme that the utility model solves the problems of the technologies described above is: comprise gun platform, gun barrel, spring, block stamp, transmission rod, impact head, gun barrel one end is fixed on the gun platform, transmission rod, block stamp, spring is set in the gun barrel successively, spring is positioned at the inner end of gun barrel, impact head is fixed on the transmission rod, at least be provided with a pilot hole on the transmission rod, gun barrel is provided with and the corresponding pin hole of pilot hole on the transmission rod, with pin transmission rod is fixed in the gun barrel, gun barrel is provided with the buckle-type slotted eye that is used for the block stamp location, is provided with the plate machine that is fixed together with block stamp in the buckle-type slotted eye.
In the above-mentioned adjustable exciting rifle, described transmission rod is provided with three pilot holes, and gun barrel is provided with three pin holes corresponding with it.
In the above-mentioned adjustable exciting rifle, described bayonet type slotted eye is provided with three bayonet sockets.
Technique effect of the present utility model is: 1) the utility model adopts block stamp, spring and transmission rod to form impaction-regulatable exciting rifle, by changing the cross sectional shape of block stamp, thereby change bump exciting force waveform, change the distance between block stamp and the transmission rod, thereby change amplitude of exciting force and duration.2) the utility model is by compression spring, and the distance and the amount of spring compression of regulating between block stamp and the transmission rod are regulated the control exciting force, can accurately control the size of exciting force.3) transmission rod contact exciting face of the present utility model knocks transmission rod by block stamp, and the indirect transfer exciting force is on the exciting face, and exciting position, direction are easy to accurate control.4) firing lock of this exciting rifle is the peg type trigger, and is simple in structure, easy to operate.
In sum, the utility model can be controlled exciting speed exactly, the position of exciting force, direction and size, thus have higher repeatable accuracy.And required testing equipment is simple, simple to operation, is suitable for on-the-spot the use.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is a cut-open view of the present utility model.
The structural representation of gun barrel in Fig. 2 the utility model.
Embodiment
Referring to Fig. 1, the utility model comprises impact head 1, transmission rod 2, pin 4, gun barrel 6, plate machine 7, block stamp 8, spring 9, gun platform 11, handle 12, sensor 13, described gun platform 10 is a disc, gun platform 10 is provided with handle 12, gun barrel 6 one ends are fixed on the disc gun platform 11, transmission rod 2, block stamp 8, spring 9 is set in the gun barrel 6 successively, spring 9 is positioned at the inner end of gun barrel 6, with fixing between impact head 1 and the transmission rod 2 with bolt 14, transmission rod 2 is provided with three pilot holes 5, gun barrel 6 is provided with and the corresponding pin hole 3 of pilot hole 5 on the transmission rod 2, with pin 4 transmission rod 2 is fixed in the gun barrel 6, gun barrel 6 is provided with the buckle-type slotted eye 16 that is used for block stamp 8 location, is provided with three bayonet sockets 15 in the buckle-type slotted eye 16, is provided with the plate machine 7 that is fixed together with block stamp in the buckle-type slotted eye 16.
The structure of gun barrel as shown in Figure 2 in the utility model, gun barrel 6 is provided with three pin holes 3 and is used for fixing transmission rod 2 positions, buckle-type slotted eye 16 on the gun barrel 3 is used for fixing trigger 7 positions, and the bayonet socket 15 convenient distances of regulating between block stamp 8 and the transmission rod 2 of 3 diverse locations are arranged.
The course of work of the present utility model is divided into two stages: the phase one is the energy storage stage, impact head 1 is placed on the exciting face (point), press down by manpower, make block stamp 8 spring 9 that contacts with transmission rod 2, make it reach certain pre compressed magnitude, be fixed on trigger 7 on a bayonet socket 15 positions this moment, makes block stamp 8 location; Subordinate phase is an assault phase, according to impacting requirement, transmission rod 2 is moved forward a segment distance, by pin 4 positioning stablities, start trigger 7 then, block stamp 8 is under spring force 9 effects, acceleration through a segment distance, bump transmission rod 2, the stress wave that bump produces arrives on the exciting face (point) along transmission rod 2 disseminations, finishes whole exciting process.
When carrying out Dynamic Structure Testing, need know the response of test specimen under the excitation of different frequency width-pulse, in the utility model, only need shirtsleeve operation can select needed pulse bandwidth within the specific limits.Specific implementation is by changing the cross sectional shape of block stamp 8, clashing into the exciting force waveform thereby change; Change the distance between block stamp 8 and the transmission rod 2, thereby change amplitude of exciting force and duration.
Claims (5)
1. adjustable exciting rifle, it is characterized in that: comprise impact head, transmission rod, block stamp, spring, gun barrel, gun platform, gun barrel one end is fixed on the gun platform, transmission rod, block stamp, spring are set in the gun barrel successively, spring is positioned at the inner end of gun barrel, impact head is fixed on the transmission rod, at least be provided with a pilot hole on the transmission rod, gun barrel is provided with and the corresponding pin hole of pilot hole on the transmission rod, with pin transmission rod is fixed in the gun barrel, gun barrel is provided with the buckle-type slotted eye that is used for the block stamp location, is provided with the plate machine that is fixed together with block stamp in the buckle-type slotted eye.
2. adjustable exciting rifle according to claim 1 is characterized in that: described transmission rod is provided with three pilot holes, and gun barrel is provided with three pin holes corresponding with it.
3. adjustable exciting rifle according to claim 1 is characterized in that: described bayonet type slotted eye is provided with three bayonet sockets.
4. adjustable exciting rifle according to claim 1, it is characterized in that: described impact head is fixed on the transmission rod by being threaded.
5. adjustable exciting rifle according to claim 1 is characterized in that: described gun platform is a disc, on the disc gun platform handle is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200628285U CN201043928Y (en) | 2007-03-30 | 2007-03-30 | Adjustable exciting gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200628285U CN201043928Y (en) | 2007-03-30 | 2007-03-30 | Adjustable exciting gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201043928Y true CN201043928Y (en) | 2008-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200628285U Expired - Lifetime CN201043928Y (en) | 2007-03-30 | 2007-03-30 | Adjustable exciting gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201043928Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024217B (en) * | 2007-03-30 | 2010-07-14 | 湖南科技大学 | Two-bar impaction-regulating vibration excitor |
| CN103630611A (en) * | 2013-11-30 | 2014-03-12 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Combined vibration exciter for testing impact echoes |
| CN104236941A (en) * | 2014-08-26 | 2014-12-24 | 中国直升机设计研究所 | Phase step exciter |
| CN105928807A (en) * | 2016-06-28 | 2016-09-07 | 智奇铁路设备有限公司 | Tester for impact resistance of paint film |
| CN108489718A (en) * | 2018-03-12 | 2018-09-04 | 中北大学 | A kind of ejection type exciting bank of adjustable force width |
| CN108663181A (en) * | 2018-06-29 | 2018-10-16 | 国网江苏省电力有限公司电力科学研究院 | A kind of Vibration Modal Test system and method for open isolating switch |
| WO2019127072A1 (en) * | 2017-12-25 | 2019-07-04 | 东北大学 | Full-automatic modal impact hammer for experimental modal test and method |
-
2007
- 2007-03-30 CN CNU2007200628285U patent/CN201043928Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024217B (en) * | 2007-03-30 | 2010-07-14 | 湖南科技大学 | Two-bar impaction-regulating vibration excitor |
| CN103630611A (en) * | 2013-11-30 | 2014-03-12 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Combined vibration exciter for testing impact echoes |
| CN104236941A (en) * | 2014-08-26 | 2014-12-24 | 中国直升机设计研究所 | Phase step exciter |
| CN104236941B (en) * | 2014-08-26 | 2018-11-23 | 中国直升机设计研究所 | A kind of step excitation device |
| CN105928807A (en) * | 2016-06-28 | 2016-09-07 | 智奇铁路设备有限公司 | Tester for impact resistance of paint film |
| WO2019127072A1 (en) * | 2017-12-25 | 2019-07-04 | 东北大学 | Full-automatic modal impact hammer for experimental modal test and method |
| CN108489718A (en) * | 2018-03-12 | 2018-09-04 | 中北大学 | A kind of ejection type exciting bank of adjustable force width |
| CN108663181A (en) * | 2018-06-29 | 2018-10-16 | 国网江苏省电力有限公司电力科学研究院 | A kind of Vibration Modal Test system and method for open isolating switch |
| CN108663181B (en) * | 2018-06-29 | 2023-10-27 | 国网江苏省电力有限公司电力科学研究院 | Vibration mode test system and method for open type isolating switch |
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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: 20080402 Effective date of abandoning: 20070330 |