CN114459719A - Horizontal impact test device - Google Patents
Horizontal impact test device Download PDFInfo
- Publication number
- CN114459719A CN114459719A CN202210246125.7A CN202210246125A CN114459719A CN 114459719 A CN114459719 A CN 114459719A CN 202210246125 A CN202210246125 A CN 202210246125A CN 114459719 A CN114459719 A CN 114459719A
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- impact
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- damper
- hammer
- guide rod
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- 238000009863 impact test Methods 0.000 title claims abstract description 26
- 238000013016 damping Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a horizontal impact test device, which comprises a base, a damper, a buffer plate, an impact hammer, a guide rod, a coil, a direct-current high-voltage generator and a waveform generator, wherein the damper is arranged on the base; the damper, the buffer plate, the impact hammer and the coil are installed in the base, the impact hammer can penetrate through the coil along the guide rod to impact the buffer plate, and the buffer plate and the impact hammer collide with each other in a centering mode. During impact test, the direct-current high-voltage generator can apply high voltage to the coil to enable the coil to generate strong electromagnetic force, the impact hammer is driven to move along the guide rod in an accelerated mode to impact the buffer plate, and then impact is generated on the waveform generator. The horizontal impact test device provided by the invention has the advantages of simple structure, easiness in operation, high safety performance, adjustability of the impact overload waveform period and peak value and the like.
Description
Technical Field
The invention relates to the field of impact tests, in particular to a horizontal impact test device.
Background
Under the condition of large overload, for example, when the experiment condition for simulating the problems of explosion, impact and the like is simulated, a mechanical wave impact test device is needed, and the existing horizontal impact test device has the problems that the impact is increased along with the use times, the contact part is easy to generate plastic deformation, the part is not easy to replace, the impact speed is difficult to control, the peak value of the obtained waveform, the period is difficult to adjust and the like.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a horizontal impact test device which has the advantages of controllable impact speed, difficult abrasion and deformation of a contact surface, adjustable waveform period and peak value, high safety and the like.
In order to achieve the purpose, the invention adopts the specific scheme that:
a horizontal impact test device comprises a supporting system, a magnetic force generating system and a collision system, wherein:
the supporting system comprises a base with an overall cuboid outer frame, and an upper pair of guide rods and a lower pair of guide rods are arranged in the base in parallel along the length direction of the base;
the magnetic force generating system comprises a coil and a voltage-adjustable direct-current high-voltage generator connected with the coil, and the coil is supported in the middle of the base;
the collision system comprises an impact hammer, a buffer plate, a damper and a waveform generator, wherein one end of the damper is connected with the inner side wall of the base, the other end of the damper is connected with the buffer plate penetrating through the guide rod, the impact hammer penetrates through the guide rod and can slide along the guide rod, the impact hammer can penetrate through a coil and the buffer plate to realize free collision in a centering manner, and a signal sensing piece of the waveform generator is adhered to one side, close to the damper, of the buffer plate;
during impact test, the direct-current high-voltage generator can apply high voltage to the coil to enable the coil to generate strong electromagnetic force, the impact hammer is driven to move along the guide rod in an accelerated mode to impact the buffer plate, and then impact is generated on the waveform generator.
Furthermore, the impact hammer comprises a hammer body and four connecting plates which are uniformly distributed along the peripheral surface of the hammer body, one end of each connecting plate is fixed on the hammer body, and the other end of each connecting plate penetrates through the guide rod.
Furthermore, the middle part of the buffer plate is provided with a groove matched with the end face of the impact hammer.
Furthermore, one end of the coil close to the buffer board is provided with a light-operated switch for controlling the direct-current high-voltage generator, and the light-operated switch can control the direct-current high-voltage generator to be turned off when detecting that the impact hammer penetrates out of the coil.
Further, the damper is any one of an electromagnetic damper, a hydraulic damper, a spring damper or an air damper.
Furthermore, the base comprises a U-shaped supporting seat, two supporting rods which are parallel and equal in height are arranged at the opening of the supporting seat through the support of two parallel side walls, and one side wall of the supporting seat is detachably connected with the bottom wall.
Furthermore, a through hole matched with the guide rod is formed in a detachable side wall of the supporting seat, and a threaded hole matched with the threaded section at one end of the guide rod is formed in the other side wall of the supporting seat.
Further, the coil is supported in the base by a fixing ring.
Further, gu fixed ring includes two upper and lower insulating semicircle boards and two upper and lower pairs of supporting legs, and the both ends of two upper and lower insulating semicircle boards are equipped with the floor of threaded hole, and on the one end of going up the supporting leg was fixed in the insulating semicircle board, on the other end was fixed in the bracing piece, the one end of lower supporting leg was fixed in down on the insulating semicircle board, the other end was fixed in on the diapire of supporting seat.
Furthermore, the magnetic force generated by the coil can be adjusted by adjusting the voltage of the direct-current high-voltage generator, so that the impact speed of the impact hammer is adjusted; the regulation and control of the impact overload waveform can be realized by adjusting the damping of the damper.
Advantageous effects
(1) According to the horizontal impact test device provided by the invention, the direct-current high-voltage generator can apply high voltage to the coil to enable the coil to generate strong electromagnetic force, so that the impact hammer is driven to move along the guide rod in an accelerated manner to impact the buffer plate, and further impact is generated on the waveform generator. The device has simple structure, easy operation and good application prospect.
(2) The middle part of the buffer plate is provided with the groove matched with the end face of the impact hammer, so that the collision contact area is increased, the problems of relative sliding, plastic deformation and the like of contact surfaces generated by collision and impact are avoided, and the load transfer efficiency is improved.
Drawings
FIG. 1 is a schematic view of a horizontal impact test apparatus according to the present invention.
Fig. 2 is a schematic structural view of the impact hammer of the present invention.
FIG. 3 is a schematic view of a buffer plate according to the present invention.
FIG. 4 is a schematic view of a retaining ring according to the present invention.
Fig. 5 is an exploded view of the air damper of the present invention.
Fig. 6 is a schematic structural view of the support system of the present invention.
Graphic notation: 1. the air damper comprises an impact hammer, 11, a hammer body, 12, a connecting plate, 2, a direct-current high-voltage generator, 3, a fixing ring, 31, an insulating semicircular plate, 32, an upper supporting leg, 33, a lower supporting leg, 4, a guide rod, 5, a waveform generator, 6, an air damper, 61, a fixing disc, 62, an air spring, 7, a buffer plate, 71, a groove, 8, a base, 81, a supporting seat, 82, a supporting rod, 9 and a coil.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Referring to fig. 1, the apparatus includes a supporting system, a magnetic force generating system and a collision system, wherein:
the supporting system comprises a base 8 with an overall cuboid outer frame, wherein an upper pair of guide rods 4 and a lower pair of guide rods 4 are arranged in the base 8 in parallel along the length direction of the base;
the magnetic force generating system comprises a coil 9 and a voltage-adjustable direct-current high-voltage generator 2 connected with the coil 9, wherein the coil 9 is supported in the middle of a base 8;
the collision system comprises an impact hammer 1, a buffer plate 7, a damper and a waveform generator 5, wherein one end of the damper is connected with the inner side wall of a base 8, the other end of the damper is connected with the buffer plate 7 arranged on a guide rod 4 in a penetrating way (providing elastic support), the impact hammer 1 is arranged on the guide rod 4 in a penetrating way and can slide along the guide rod 4, the impact hammer 1 can pass through a coil 9 and the buffer plate 7 to realize free collision in a centering way, and a signal sensing piece of the waveform generator 5 is adhered to one side, close to the damper, of the buffer plate 7 to record and draw an impact overload waveform;
during impact test, the direct-current high-voltage generator 2 can apply high voltage to the coil 9 to enable the coil 9 to generate strong electromagnetic force, the impact hammer 1 is driven to move along the guide rod 4 in an accelerating mode to impact the buffer plate 7, and then impact is generated on the waveform generator 5.
Referring to fig. 1 and 2, the impact hammer 1 includes a hammer body 11 and four connecting plates 12 uniformly distributed along an outer peripheral surface of the hammer body 11, wherein one end of each connecting plate 12 is fixed on the hammer body 11, and the other end of each connecting plate 12 penetrates through the guide rod 4.
In detail, referring to fig. 3, a groove 71 matched with the end face of the impact hammer 1 is formed in the middle of the buffer plate 7, and the groove 71 increases the collision contact area, so that the problems of relative sliding, plastic deformation and the like of the contact surface generated by collision and impact are avoided, the pressure per unit area is lower, and the deformation and the wear at the collision surface are lower.
It should be noted that, an optical control switch for controlling the direct current high voltage generator 2 is arranged at one end of the coil 9 close to the buffer board 7, and the optical control switch can control the direct current high voltage generator 2 to be turned off when detecting that the impact hammer 1 penetrates out of the coil 9.
Further, the damper is an elastic damper such as an electromagnetic damper (the electromagnetic damper can change rigidity and damping by changing an excitation voltage value), a hydraulic damper, a spring damper, or an air damper 6. Fig. 1 and 5 illustrate an air damper, and the air damper 6 includes an air spring 62, a fixing plate 61 disposed on both sides of the air spring 62, and a safety valve connected to the air spring 62 to adjust the air pressure inside the air spring 62, so that the center line of the buffer plate 7 is consistent with the center line of the air damper 6.
Referring to fig. 6, the base 8 includes a U-shaped supporting seat 81, two supporting rods 82 with parallel and equal height are installed at an opening of the supporting seat 81 through two parallel side walls, and one side wall of the supporting seat 81 is detachably connected to a bottom wall (the side wall is referred to as a "detachable side wall" or a "detachable side wall" in this specification). Reinforcing ribs are arranged between the bottom wall of the supporting seat 81 and the supporting rods 82 and between the two supporting rods 82.
Furthermore, one end of the guide rod 4 is provided with a threaded section, a through hole matched with the guide rod 4 is formed in the detachable side wall of the supporting seat 81, and a threaded hole matched with the threaded section of the guide rod 4 is formed in the other side wall.
Further, the coil 9 is supported in the base 8 through the fixing ring 3, in detail, please refer to fig. 4, the fixing ring 3 includes an upper insulating semicircular plate 31 and a lower insulating semicircular plate 31 and two pairs of upper and lower supporting legs 32,33, both ends of the upper and lower insulating semicircular plates 31 are provided with ribbed plates with threaded holes, one end of the upper supporting leg 32 is fixed on the upper insulating semicircular plate 31, the other end is fixed on the supporting rod 82, one end of the lower supporting leg 33 is fixed on the lower insulating semicircular plate 31, and the other end is fixed on the bottom wall of the supporting seat 81.
The device is installed, at first, screw in the threaded hole on the lateral wall of supporting seat 81 (this lateral wall indicates the lateral wall corresponding to the lateral wall of dismantling), again with the attenuator installation fix on this lateral wall, buffer board 7 passes guide arm 4 and is connected with the attenuator, install insulating semicircle board down, place coil 9 on insulating semicircle board down, go up insulating semicircle board lock on coil 9 and pass through bolted connection with insulating semicircle board down and fix, jump bit 1 wears to locate on guide arm 4, insert the one end that the damper was kept away from to guide arm 4 in the through-hole of supporting seat 81 dismantlement lateral wall in order to support stable guide arm 4, can dismantle lateral wall in supporting seat 81 and use the bolt to fix with the diapire, start direct current high voltage generator 2, coil 9 produces strong magnetic force drive jump bit 1 and strike buffer board 7, and then produce the impact on waveform generator 5, can control the striking speed of jump bit 1 (direct current high voltage generator) through adjusting the voltage of direct current high voltage generator 2 2, the voltage is adjustable, the magnetic force generated by the coil 9 is changed by adjusting the voltage applied to the coil 9, and the impact speed of the impact hammer 1 is controlled), so that the waveform peak value is adjusted; the waveform period can be regulated and controlled by adjusting the damping of the damper (for example, in an air damping system, the air pressure of an air spring is adjusted).
The foregoing is merely a preferred embodiment of the invention and is not to be construed as limiting the invention in any way. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a horizontal impact test device which characterized in that: including braced system, magnetic force generating system and collision system, wherein:
the supporting system comprises a base with an overall cuboid outer frame, and an upper pair of guide rods and a lower pair of guide rods are arranged in the base in parallel along the length direction of the base;
the magnetic force generating system comprises a coil and a voltage-adjustable direct-current high-voltage generator connected with the coil, and the coil is supported in the middle of the base;
the collision system comprises an impact hammer, a buffer plate, a damper and a waveform generator, wherein one end of the damper is connected with the inner side wall of the base, the other end of the damper is connected with the buffer plate penetrating through the guide rod, the impact hammer penetrates through the guide rod and can slide along the guide rod, the impact hammer can penetrate through a coil and the buffer plate to realize free collision in a centering manner, and a signal sensing piece of the waveform generator is adhered to one side, close to the damper, of the buffer plate;
during impact test, the direct-current high-voltage generator can apply high voltage to the coil to enable the coil to generate strong electromagnetic force, the impact hammer is driven to move along the guide rod in an accelerated mode to impact the buffer plate, and then impact is generated on the waveform generator.
2. A horizontal impact test apparatus according to claim 1, wherein: the impact hammer comprises a hammer body and four connecting plates which are uniformly distributed along the peripheral surface of the hammer body, one end of each connecting plate is fixed on the hammer body, and the other end of each connecting plate penetrates through the guide rod.
3. A horizontal impact test apparatus according to claim 1, wherein: the middle part of the buffer plate is provided with a groove matched with the end face of the impact hammer.
4. A horizontal impact test apparatus according to claim 1, wherein: and a light-operated switch for controlling the direct-current high-voltage generator is arranged at one end of the coil close to the buffer board, and the light-operated switch can control the direct-current high-voltage generator to be closed when detecting that the impact hammer penetrates out of the coil.
5. A horizontal impact test apparatus according to claim 1, wherein: the damper is any one of an electromagnetic damper, a hydraulic damper, a spring damper or an air damper.
6. A horizontal impact test apparatus according to claim 1, wherein: the base comprises a U-shaped supporting seat, two parallel supporting rods with the same height are arranged at the opening of the supporting seat through the support of two parallel side walls, and one side wall of the supporting seat is detachably connected with the bottom wall.
7. A horizontal impact test apparatus according to claim 6, wherein: a through hole matched with the guide rod is formed in a detachable side wall of the supporting seat, and a threaded hole matched with the threaded section at one end of the guide rod is formed in the other side wall of the supporting seat.
8. A horizontal impact test apparatus according to claim 6, wherein: the coil is supported in the base through a fixing ring.
9. A horizontal impact test apparatus according to claim 8, wherein: the fixed ring comprises an upper insulating semicircular plate, a lower insulating semicircular plate and two pairs of upper and lower supporting legs, the two ends of the upper insulating semicircular plate and the two ends of the lower insulating semicircular plate are provided with rib plates with threaded holes, one end of each upper supporting leg is fixed on the upper insulating semicircular plate, the other end of each upper supporting leg is fixed on the supporting rod, one end of each lower supporting leg is fixed on the lower insulating semicircular plate, and the other end of each lower supporting leg is fixed on the bottom wall of the supporting seat.
10. A horizontal impact test apparatus according to claim 1, wherein: the magnetic force generated by the coil can be adjusted by adjusting the voltage of the direct-current high-voltage generator, so that the impact speed of the impact hammer is adjusted; the regulation and control of the impact overload waveform can be realized by adjusting the damping of the damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210246125.7A CN114459719B (en) | 2022-03-14 | 2022-03-14 | Horizontal impact test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210246125.7A CN114459719B (en) | 2022-03-14 | 2022-03-14 | Horizontal impact test device |
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| CN114459719A true CN114459719A (en) | 2022-05-10 |
| CN114459719B CN114459719B (en) | 2024-03-15 |
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| CN114459719B (en) | 2024-03-15 |
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