CN211740944U - Hopkinson bar buffering energy-absorbing protection device - Google Patents
Hopkinson bar buffering energy-absorbing protection device Download PDFInfo
- Publication number
- CN211740944U CN211740944U CN202020249522.6U CN202020249522U CN211740944U CN 211740944 U CN211740944 U CN 211740944U CN 202020249522 U CN202020249522 U CN 202020249522U CN 211740944 U CN211740944 U CN 211740944U
- Authority
- CN
- China
- Prior art keywords
- buffer
- buffering
- protection device
- plate
- front panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a hopkinson pole buffering energy-absorbing protection device, relate to material dynamic mechanics research technical field, the bottom plate is used for fixed mounting on hopkinson pole supporting platform, front panel and rear panel vertical fixation are bottom plate front end and rear end respectively, buffering riser sliding connection just cushions the riser on the bottom plate and is located between front panel and the rear panel, the buffering riser can slide along the fore-and-aft direction, first elastic element both ends respectively with front panel and buffering riser fixed connection, second elastic element both ends respectively with rear panel and buffering riser fixed connection, all fixed being equipped with the buffer on front panel and the rear panel, each buffer all sets up towards buffering riser and can cushion the buffering riser, the fixed blotter that is equipped with on the buffering riser, the blotter is used for receiving the impact that absorbs the pole. The utility model discloses Hopkinson bar buffering energy-absorbing protection device absorbs the energy that the impact force of absorbing rod produced, and buffering energy-absorbing effect is good, can reduce the damage to supporting platform.
Description
Technical Field
The utility model relates to a material dynamic mechanics research technical field especially relates to a hopkinson pole buffering energy-absorbing protection device.
Background
The Hopkinson bar is an experimental device which can be used for carrying out dynamic experimental research on materials, and is widely applied to testing the dynamic mechanical properties of the materials. At present, the hopkinson rod mechanical device mainly comprises a loading device 15, a pressure rod device 16 and a data acquisition system 17, wherein the loading device 15 comprises an emitter 18, a gun barrel 19 and a bullet 20, the pressure rod device 16 comprises an incident rod 21, a transmission rod 22, an absorption rod 23 and a damper 24, and a sample 25 is connected with the incident rod 21 and the transmission rod 22 through a certain method, as shown in fig. 1.
The working principle is as follows: the loading pulse is generated by the bullet 20 striking the end of the entrance rod 21. The bullet 20 is accelerated in the barrel 19 by the propelling action of the high pressure gas to a certain impact velocity, at which it strikes the end of the incident rod 21, producing an incident elastic pressure pulse whose duration depends on the length of the bullet 20. The unloading of the incident rod 21 by the bullet 20 is completed when the initial pressure pulse is reflected by the free end of the bullet 20 as a tension pulse and back to the impact surface, whereby an incident stress wave having a wavelength twice the length of the bullet 20 will be generated in the incident rod 21. When the incident stress wave in the incident rod 21 reaches the sample 25, a part of the incident stress wave is reflected back to the incident rod 21 due to the unequal cross-sectional areas of the incident rod 21 and the sample 25 and the mismatching of wave impedance to form a reflected stress wave, and the other part of the incident stress wave passes through the sample 25 to reach the transmission rod 22 to form a transmitted stress wave, and the transmitted stress wave is captured by the absorption rod 23 and finally absorbed by the damper 24.
The damper is usually fixedly mounted on the bottom platform, and is subjected to large impact force, so that the threaded hole of the bottom platform is damaged after long-term use, namely, the bottom supporting platform (the section bar or the optical platform) is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hopkinson pole buffering energy-absorbing protection device to solve the problem that above-mentioned prior art exists, absorb the energy that the impact force of absorption pole produced, the buffering energy-absorbing is effectual, can reduce the damage to supporting platform.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a Hopkinson bar buffering and energy-absorbing protection device, which comprises a bottom plate, a front panel, a rear panel, a buffering vertical plate, a first elastic element, a second elastic element, a buffer and a buffer pad, wherein the bottom plate is fixedly arranged on a Hopkinson bar supporting platform, the front panel and the rear panel are respectively and vertically fixed at the front end and the rear end of the bottom plate, the buffering vertical plate is connected on the bottom plate in a sliding way and is positioned between the front panel and the rear panel, the buffering vertical plate can slide along the front-back direction, two ends of the first elastic element are respectively and fixedly connected with the front panel and the buffering vertical plate, two ends of the second elastic element are respectively and fixedly connected with the rear panel and the buffering vertical plate, the buffer is fixedly arranged on the front panel and the rear panel, and each buffer faces the buffering vertical plate and can buffer the buffering vertical plate, the buffer vertical plate is fixedly provided with the buffer pad, and the buffer pad is used for receiving the impact of the absorption rod.
Preferably, the bottom of the buffer vertical plate is fixedly connected with an adapter plate, the adapter plate is fixedly connected with a sliding block, the bottom plate is fixedly connected with a sliding rail, the sliding rail extends in the front-back direction, and the sliding block is slidably connected to the sliding rail.
Preferably, a groove is formed in the buffer vertical plate, and the buffer pad is embedded into the groove.
Preferably, the bottom surface of the groove is provided with a through hole.
Preferably, the cushion is a polyurethane cushion.
Preferably, two sides of the bottom plate are respectively provided with a side plate, each side plate is located between the front panel and the rear panel, two end faces of each side plate are respectively contacted with the front panel and the rear panel, the bottom surface of each side plate is provided with a protrusion, the bottom plate is provided with a groove matched with the protrusion, and the protrusion is inserted into the groove.
Preferably, the first elastic element and the second elastic element are both springs.
Preferably, the shock absorber is a hydraulic shock absorber, and the hydraulic shock absorber is horizontally arranged in the front-rear direction.
The utility model discloses for prior art gain following technological effect:
the utility model provides a hopkinson pole buffering energy-absorbing protection device, with the device fixed mounting on hopkinson pole supporting platform, when absorbing the pole impact blotter, make the buffering riser slide on the bottom plate, first elastic element and second elastic element can cushion the slip of buffering the riser, the energy absorption that produces the impact force, moreover, the buffer of setting also can cushion the buffering riser, absorb the energy that the impact force produced, through the utility model discloses a buffering energy-absorbing protection device absorbs the energy that the pole impact force produced, and buffering energy-absorbing is effectual, reduces bottom supporting platform atress, thereby can reduce the damage to supporting platform.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a Hopkinson bar mechanism;
fig. 2 is a schematic view of a three-dimensional structure of the hopkinson bar buffering energy-absorbing protection device provided by the present invention;
fig. 3 is a top view of the hopkinson bar buffering energy-absorbing protection device provided by the present invention;
fig. 4 is a side view of the hopkinson bar buffering energy-absorbing protection device provided by the present invention after a side plate is removed;
fig. 5 is a schematic view of a connection structure of a guide rail and a slide block on a bottom plate of the split Hopkinson bar buffering and energy-absorbing protection device provided by the utility model;
fig. 6 is a half sectional view of the connection between the buffer vertical plate and the bottom plate of the hopkinson bar buffer energy-absorbing protection device provided by the utility model;
in the figure: the test device comprises a base plate 1, a front panel 2, a rear panel 3, a vertical buffer plate 4, a first elastic element 5, a second elastic element 6, a buffer 7, a buffer cushion 8, a transfer plate 9, a slide block 10, a slide rail 11, a through hole 12, a side plate 13, a groove 14, a loading device 15, a compression bar device 16, a data acquisition system 17, a transmitter 18, a gun barrel 19, a bullet 20, an incident rod 21, a transmission rod 22, an absorption rod 23, a damper 24 and a test sample 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a hopkinson pole buffering energy-absorbing protection device to solve the problem that prior art exists, absorb the energy that the impact force of absorption pole produced, buffering energy-absorbing is effectual, can reduce the damage to supporting platform.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 2 to 6, the embodiment provides a buffer energy-absorbing protection device for a hopkinson pole, which includes a bottom plate 1, a front panel 2, a rear panel 3, a buffer vertical plate 4, a first elastic element 5, a second elastic element 6, a buffer 7 and a buffer pad 8, wherein the bottom plate 1 is used for being fixedly mounted on a support platform of the hopkinson pole, the front panel 2 and the rear panel 3 are respectively and vertically fixed at the front end and the rear end of the bottom plate 1, the buffer vertical plate 4 is slidably connected to the bottom plate 1, the buffer vertical plate 4 is located between the front panel 2 and the rear panel 3, the buffer vertical plate 4 can slide along the front-rear direction, two ends of the first elastic element 5 are respectively and fixedly connected to the front panel 2 and the buffer vertical plate 4, two ends of the second elastic element 6 are respectively and fixedly connected to the rear panel 3 and the buffer vertical plate 4, the front panel 2 and the rear panel 3 are respectively and fixedly provided with the buffer 7, each buffer 7 is arranged towards the buffer vertical plate 4, the buffer vertical plate 4 is fixedly provided with a buffer 8, and the buffer 8 is used for receiving the impact of the absorption rod.
When the absorption device is used, the bottom plate 1 is fixedly arranged on a Hopkinson bar supporting platform, the buffer pad 8 is located on the outer side of the absorption bar, after the absorption bar captures a transmission stress wave, the absorption bar impacts the buffer pad 8, the buffer pad 8 can absorb a part of impact force and simultaneously drive the buffer vertical plate 4 to slide on the bottom plate 1 along the front-back direction, and under the action of the first elastic element 5 and the second elastic element 6, energy generated during impact can be effectively absorbed to buffer the buffer vertical plate 4, so that the buffer vertical plate 4 is gradually reset; if the impact force is large, the buffer vertical plate 4 is in contact with the buffer 7, the buffer 7 can further absorb energy generated by impact, the buffer vertical plate 4 is buffered, and meanwhile, the buffer vertical plate 4 is gradually reset under the buffer action of the first elastic element 5 and the second elastic element 6; through the utility model discloses a buffering energy-absorbing protection device absorbs the energy that the impact force of absorption pole produced, and buffering energy-absorbing effect is good, reduces bottom supporting platform atress to can reduce the damage to supporting platform.
As shown in fig. 4-6, buffer riser 4 bottom fixedly connected with keysets 9, fixedly connected with slider 10 on the keysets 9, fixedly connected with slide rail 11 on the bottom plate 1, slide rail 11 extends the setting along the fore-and-aft direction, slider 10 sliding connection is on slide rail 11, wherein, be provided with two sliders 10 along left right direction symmetry in keysets 9 bottom, every slider 10 all sliding connection is on a slide rail 11, setting through slider and slide rail, make buffer riser 4 slide more smoothly, be convenient for first elastic element 5, second elastic element 6 and buffer 7 cushion buffer riser 4, make buffer riser 4 from restoring to the throne.
As shown in fig. 2 and 6, a groove is formed on the vertical buffering plate 4, the buffering pad 8 is embedded into the groove, and the impact force of the absorbing rod is primarily absorbed and transmitted to the vertical buffering plate 4 through the arrangement of the buffering pad 8, so that the energy generated by the impact force is absorbed under the action of the first elastic element 5, the second elastic element 6 and the buffer 7, and the vertical buffering plate 4 is self-reset.
As shown in FIG. 6, the bottom of the groove is provided with a through hole 12 to facilitate removal of the cushion pad 8.
The buffer cushion 8 is a polyurethane buffer cushion, has good buffer effect and is durable.
As shown in fig. 2-3 and 5, two sides of the bottom plate 1 are respectively provided with a side plate 13, each side plate 13 is located between the front panel 2 and the rear panel 3, two end faces of each side plate 13 are respectively contacted with the front panel 2 and the rear panel 3, the bottom surface of each side plate 13 is provided with a protrusion, the bottom plate 1 is provided with a groove 14 matched with the protrusion, the protrusion is inserted into the groove 14, the assembly and disassembly are convenient, the two side plates 13 can form a square structure with the front panel 2 and the rear panel 3, and the structure is more stable.
As shown in fig. 3 to 4, the first elastic element 5 and the second elastic element 6 are both springs, and have the advantages of simple structure, convenience in installation and good buffering and energy absorption effects.
As shown in fig. 2 to 4, the buffer 7 is a hydraulic buffer, the hydraulic buffer is horizontally disposed along the front-back direction, and the two hydraulic buffers are respectively installed and fixed on the front panel 2 and the rear panel 3 through bolts, so that the installation is convenient and the replacement is convenient.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. The utility model provides a hopkinson pole buffering energy-absorbing protection device which characterized in that: the buffer device comprises a bottom plate, a front panel, a rear panel, a buffer vertical plate, a first elastic element, a second elastic element, a buffer and a buffer pad, wherein the bottom plate is fixedly arranged on a Hopkinson bar supporting platform, the front panel and the rear panel are respectively and vertically fixed at the front end and the rear end of the bottom plate, the buffer vertical plate is connected to the bottom plate in a sliding manner and is positioned between the front panel and the rear panel, the buffer vertical plate can slide along the front-rear direction, two ends of the first elastic element are respectively and fixedly connected with the front panel and the buffer vertical plate, two ends of the second elastic element are respectively and fixedly connected with the rear panel and the buffer vertical plate, the buffer is fixedly arranged on the front panel and the rear panel, and each buffer is arranged towards the buffer vertical plate and can buffer the buffer vertical plate, the buffer vertical plate is fixedly provided with the buffer pad, and the buffer pad is used for receiving the impact of the absorption rod.
2. The Hopkinson bar buffering and energy absorbing protection device according to claim 1, wherein: the buffer vertical plate is characterized in that an adapter plate is fixedly connected to the bottom of the buffer vertical plate, a sliding block is fixedly connected to the adapter plate, a sliding rail is fixedly connected to the base plate, the sliding rail extends in the front-back direction, and the sliding block is slidably connected to the sliding rail.
3. The Hopkinson bar buffering and energy absorbing protection device according to claim 1, wherein: the buffer vertical plate is provided with a groove, and the buffer pad is embedded into the groove.
4. The Hopkinson bar buffering and energy absorbing protection device according to claim 3, wherein: the bottom surface of the groove is provided with a through hole.
5. The Hopkinson bar buffering and energy absorbing protection device according to claim 1 or 3, wherein: the buffer pad is a polyurethane buffer pad.
6. The Hopkinson bar buffering and energy absorbing protection device according to claim 1, wherein: the bottom plate is provided with a front panel and a rear panel, the front panel is provided with a front surface, the rear panel is provided with a rear surface, the two sides of the bottom plate are respectively provided with a side plate, each side plate is positioned between the front panel and the rear panel, two end faces of each side plate are respectively contacted with the front panel and the rear panel, the bottom surface of each side plate is provided with a bulge, the bottom plate is provided with a groove matched with the bulge, and the bulge is.
7. The Hopkinson bar buffering and energy absorbing protection device according to claim 1, wherein: the first elastic element and the second elastic element are both springs.
8. The Hopkinson bar buffering and energy absorbing protection device according to claim 1, wherein: the buffer is a hydraulic buffer, and the hydraulic buffer is horizontally arranged along the front-back direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249522.6U CN211740944U (en) | 2020-03-04 | 2020-03-04 | Hopkinson bar buffering energy-absorbing protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249522.6U CN211740944U (en) | 2020-03-04 | 2020-03-04 | Hopkinson bar buffering energy-absorbing protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211740944U true CN211740944U (en) | 2020-10-23 |
Family
ID=72857542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020249522.6U Active CN211740944U (en) | 2020-03-04 | 2020-03-04 | Hopkinson bar buffering energy-absorbing protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211740944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665994A (en) * | 2020-12-17 | 2021-04-16 | 武汉理工大学 | Gravity unloading rock mass dynamic unloading test system and method |
-
2020
- 2020-03-04 CN CN202020249522.6U patent/CN211740944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665994A (en) * | 2020-12-17 | 2021-04-16 | 武汉理工大学 | Gravity unloading rock mass dynamic unloading test system and method |
| CN112665994B (en) * | 2020-12-17 | 2024-03-22 | 武汉理工大学 | Gravity unloading rock mass dynamic unloading test system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211740944U (en) | Hopkinson bar buffering energy-absorbing protection device | |
| CN213681692U (en) | Anti-collision protective wall for bridge pier | |
| CN212890212U (en) | New forms of energy carrier protective structure | |
| CN116526740A (en) | Shock-absorbing structure and motor mounting seat with protection function | |
| CN109017860B (en) | Integrated buffering energy-absorbing device and railway vehicle | |
| CN104455191A (en) | Shock isolation system for horizontal impact test device | |
| CN209904706U (en) | Front anti-collision beam of automobile | |
| CN218233291U (en) | High buffer protection device of security | |
| CN209259508U (en) | A kind of teeth belt type transmission rail clamping device | |
| CN213839400U (en) | Damping device for bridge design | |
| CN220749702U (en) | Hydraulic supporting device with flexible damping function | |
| CN213384257U (en) | Railway vehicle buffer for safety detection | |
| CN220147488U (en) | Motorcycle oil tank guard board capable of absorbing impact force | |
| CN217483841U (en) | Shock absorption and isolation test platform for high polymer material sliding plate | |
| CN219604135U (en) | Bridge steel corbel convenient to install | |
| CN217316456U (en) | Laser cutting machine of lathe housing production of anticollision | |
| CN220281320U (en) | Shock-absorbing type automobile bumper | |
| CN215553004U (en) | Automobile anti-collision beam structural part | |
| CN211844330U (en) | Safety automobile bumper | |
| CN211032127U (en) | Vehicle door anti-collision beam support | |
| CN214823100U (en) | Impact-resistant anti-deformation automobile bumper | |
| CN217863887U (en) | Flat-bed semitrailer buffering and damping mechanism | |
| CN212243241U (en) | Automobile front bumper structure | |
| CN213115265U (en) | Shockproof stair structure for civil air defense | |
| CN219989172U (en) | Front auxiliary frame with energy absorption function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |