CN204314478U - A kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment is dropped hammer continuously - Google Patents
A kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment is dropped hammer continuously Download PDFInfo
- Publication number
- CN204314478U CN204314478U CN201420870169.8U CN201420870169U CN204314478U CN 204314478 U CN204314478 U CN 204314478U CN 201420870169 U CN201420870169 U CN 201420870169U CN 204314478 U CN204314478 U CN 204314478U
- Authority
- CN
- China
- Prior art keywords
- power transmission
- positioning beam
- hammer
- striker
- applicable
- 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
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment to drop hammer continuously, comprise base, described base is fixed with left and right two root posts, is connected with crossbeam at the top of two described columns, is connected with positioning beam at the middle part of two described columns; In described positioning beam, be provided with multistage striker side by side successively from left to right, be provided with the power transmission be slidably connected with it drop hammer on the top of two described columns, described power transmission is dropped hammer between described crossbeam and described positioning beam; Be provided with electric windlass at the top of described crossbeam, the motion of described electric windlass traction magnechuck, described magnechuck is arranged on the overcentre that described power transmission is dropped hammer.The existing gravity drop hammer excitation energy of the utility model inherit and development is large, loads good stability, and the advantage of the process safety that impulses, and achieve continuously, the exciting of wide area vibration source; Impact dynamics can be realized and the adjustability of a mistiming of dropping hammer.
Description
Technical field
The utility model relates to a kind of laboratory vibration source excitation apparatus, and the power transmission formula that particularly a kind of time interval being applicable to laboratory study multi-point Ground Motion is adjustable is dropped hammer continuously.
Background technology
It is the model utilizing specific material to be made into simulated formation structure and construction of structures in the research of laboratory multi-support seismic excitation, by vibration source excitation apparatus, empirical model is impacted, rating model response under impact, and by image documentation equipment by response process record, then carry out analytical calculation.
The vibration source excitation apparatus generally adopted in present stage laboratory comprises gravity drop hammer, small-bore rifle, explosive and electromagnetism hammer etc.In these vibration source excitation apparatus, the exciting mode of small-bore rifle, explosive is applied widely, and excitation energy is large, but because blast can fly out a large amount of fragment in experimentation, there is larger danger; Existing electromagnetism hammer has and can reuse, and dynamic response is rapid, applied widely and load stable advantage, but its excitation energy relatively little and can not excite continuously, the vibration source of wide area; The exciting mode of existing gravity drop hammer, has excitation energy large, loads good stability, and the advantage of exciting process safety, but it is repeatable poor also to exist, and the scope of application is little, during weight drop, energy loss randomness is large and can not produce the inferior position that continuous, wide area vibration source excites.
Summary of the invention
The utility model provides a kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment to drop hammer continuously for solving in known technology the technical matters that exists, this device inherit and development advantage of existing gravity drop hammer, the shortcoming that when improving its weight drop, energy loss randomness is large, and achieve continuously, the exciting of wide area vibration source.
The technical scheme that the utility model is taked for the technical matters existed in solution known technology is: a kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment is dropped hammer continuously, comprise base, described base is fixed with left and right two root posts, be connected with crossbeam at the top of two described columns, be connected with positioning beam at the middle part of two described columns, in described positioning beam, be provided with multistage striker side by side successively from left to right, corresponding every one-level striker forms one and vertically runs passage in described positioning beam, respectively be provided with a perpendicular spacing room in each described operation passage both sides, have locating device at described spacing indoor location, described locating device is made up of spring I and spacer pin, described spacer pin and described spacing room are slidably connected, described spacer pin is provided with the hemispherical nose extended in described operation passage, described spring I is arranged on described spacing indoor, and described spring I clamps between the bottom and the afterbody of described spacer pin of described spacing room, described striker is installed in described operation passage, and is located by two described spacer pins of described striker both sides, described striker is made up of top needle guard and bottom needle body, described upper needle is arranged with round table-like solid end socket and tubular nut, the top of described solid end socket is protruded on described positioning beam, described solid end socket is provided with the stopper slot with the hemispherical nose adaptation of spacer pin, the top of described bottom needle body is connected with described tubular nut by screw thread, the spring II clamped between described bottom needle body and described tubular nut is provided with in described tubular nut, balancing weight is connected with in the bottom of described bottom needle body, described balancing weight is positioned at the below of described operation passage, scale I is provided with vertically at the middle part of described bottom needle body, the bottom outer-edge of described tubular nut circumferentially arranges scale II, described scale I and described scale II form the measurement mechanism of micrometer caliper, be provided with on the top of two described columns the power transmission be slidably connected with it to drop hammer, described power transmission is dropped hammer between described crossbeam and described positioning beam, be provided with electric windlass at the top of described crossbeam, the motion of described electric windlass traction magnechuck, described magnechuck is arranged on the overcentre that described power transmission is dropped hammer.
Described base is provided with leveling instrument and levelling device, and described leveling instrument is made up of two air levels, and two described air levels are vertically fixed on described base; Described levelling device is made up of four adjustable bolts, and four described adjustable bolts divide corner, the bottom place being located at described base.
Two described columns are formed with the rule arranged from bottom to up.
The both sides that described power transmission is dropped hammer are contacted with corresponding described column by pulley.
Described positioning beam adopts screw to be connected with two described columns.
The advantage that the utility model has and good effect are:
One) the existing gravity drop hammer excitation energy of the utility model inherit and development is large, loads good stability, and the advantage of exciting process safety, and achieve continuously, the exciting of wide area vibration source.
Two) the utility model to be dropped hammer structure by power transmission, can realize impact dynamics and the adjustability of a mistiming of dropping hammer.
Three) the utility model structure is simple, easy to operate, has good economy and the feature of environmental protection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is base vertical view of the present utility model;
Fig. 3 is positioning beam structural representation of the present utility model;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is that power transmission of the present utility model is dropped hammer vertical view;
Fig. 6 is striker structure schematic diagram of the present utility model.
In figure: 1, base; 11, air level; 12, adjustable bolt; 2, column; 3, positioning beam; 31, spring I; 32, spacer pin; 4, power transmission is dropped hammer; 41, pulley; 5, crossbeam; 6, electric windlass; 7, magnechuck; 8, striker; 81, stopper slot; 82, spring II; 83, bottom needle body; 84, balancing weight; 85, scale I; 9, screw; 10, test specimen.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 ~ Fig. 6, a kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment is dropped hammer continuously, comprises base 1, and described base 1 is fixed with left and right two root posts 2, be connected with crossbeam 5 at the top of two described columns 2, be connected with positioning beam 3 at the middle part of two described columns 2.
Multistage striker 8 is provided with successively side by side from left to right in described positioning beam 3, corresponding every one-level striker 8 vertically runs passage interior one of described positioning beam 3, respectively be provided with a perpendicular spacing room in each described operation passage both sides, have locating device at described spacing indoor location; Described locating device is made up of spring I 31 and spacer pin 32, described spacer pin 32 is slidably connected with described spacing room, described spacer pin 32 is provided with the hemispherical nose extended in described operation passage, described spring I 31 is arranged on described spacing indoor, and described spring I 31 clamps between the bottom and the afterbody of described spacer pin 32 of described spacing room; Described striker 8 is installed in described operation passage, and is located by two described spacer pins 32 of described striker both sides.
Described striker 8 is made up of top needle guard and bottom needle body, described upper needle is arranged with round table-like solid end socket and tubular nut, the top of described solid end socket is protruded on described positioning beam 3, described solid end socket is provided with the stopper slot 81 with the hemispherical nose adaptation of spacer pin, the top of described bottom needle body 83 is connected with described tubular nut by screw thread, the spring II 82 clamped between described bottom needle body 83 and described tubular nut is provided with in described tubular nut, balancing weight 84 is connected with in the bottom of described bottom needle body 83, described balancing weight 84 is positioned at the below of described operation passage, scale I 85 is provided with vertically at the middle part of described bottom needle body 83, the bottom outer-edge of described tubular nut circumferentially arranges scale II, described scale I 85 and described scale II form the measurement mechanism of micrometer caliper.Namely the scale mark described striker 8 arranged is that the method to set up following micrometer caliper dimension line is arranged.
Be provided with on the top of two described columns 2 power transmission be slidably connected with it and drop hammer 4, described power transmission drops hammer 4 between described crossbeam 5 and described positioning beam 3.
Be provided with electric windlass 6 at the top of described crossbeam 5, described electric windlass 6 draws magnechuck 7 and moves, described magnechuck 7 be arranged on described power transmission drop hammer 4 overcentre.
In the present embodiment, described base 1 is provided with leveling instrument and levelling device, and described leveling instrument is made up of two air levels 11, and two described air levels 11 are vertically fixed on described base 1; Described levelling device is made up of four adjustable bolts 12, and four described adjustable bolts 12 points are located at corner, the bottom place of described base 1.Two described columns 2 are formed with the rule arranged from bottom to up.To be convenient for measuring the height at striker 8 top.Described power transmission drop hammer 4 both sides contacted with corresponding described column 2 by pulley 41, to reduce friction force.Described positioning beam 3 adopts screw 9 to be connected with two described columns 2, to make the varying height positions of described positioning beam 3.
Before experiment starts, first test specimen 10 is placed on base 1, and makes test specimen 10 be positioned at the below of positioning beam 3.Then observe the state of air level 11, four adjustable bolts 12 under adjusting base 1, to make the bubble in two air levels 11 all be positioned in the middle part of air level 11, to determine base 1 placement level.
With magnechuck 7 power transmission dropped hammer and 4 rise to setting height, and record the scale mark reading h that power transmission drops hammer on column 2 that at the bottom of 4 hammers, place height is corresponding
1; Then experimentally requirement, is fixed on setting height by positioning beam 3, records the column 2 high scale line reading h now corresponding to striker 8 overhead height
2; Utilize formula
try to achieve the initial velocity that striker 8 obtains, v in formula
0for striker 8 initial velocity; M is that power transmission is dropped hammer 4 quality; Δ W is energy loss in knockout process, is determined by striking experiment; M is striker 8 quality; N is striker number.
Complete fixing, leveling of the present utility model and power transmission drop hammer 4 drops mensuration after, experimentally requirement, utilizes the scale of micrometer caliper formula on striker 8, adjusts striker 8 at different levels to the distance will clashing into test specimen 10, utilizes formula Δ t=Δ S/v
0adjust the mistiming of clashing between two-stage striker 8; In formula, Δ S is the range difference of adjacent two-stage striker 8 to test specimen 10; Δ t is the mistiming of clashing between two-stage striker 8.
When experiment starts, disconnect the circuit of described magnechuck 7, make it lose magnetism, power transmission hammer 4 does the movement of falling object under gravity, then shock is taken place at the same instant with multistage striker 8, by energy transferring to striker 8, for it provides initial velocity, then complete exciting by striker 8 and the shock of test specimen 10.
Although be described preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection domain of the present utility model.
Claims (5)
1. the adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment is dropped hammer continuously, it is characterized in that, comprise base, described base is fixed with left and right two root posts, be connected with crossbeam at the top of two described columns, be connected with positioning beam at the middle part of two described columns;
In described positioning beam, be provided with multistage striker side by side successively from left to right, corresponding every one-level striker forms one and vertically runs passage in described positioning beam; Respectively be provided with a perpendicular spacing room in each described operation passage both sides, have locating device at described spacing indoor location; Described locating device is made up of spring I and spacer pin, described spacer pin and described spacing room are slidably connected, described spacer pin is provided with the hemispherical nose extended in described operation passage, described spring I is arranged on described spacing indoor, and described spring I clamps between the bottom and the afterbody of described spacer pin of described spacing room; Described striker is installed in described operation passage, and is located by two described spacer pins of described striker both sides;
Described striker is made up of top needle guard and bottom needle body, described upper needle is arranged with round table-like solid end socket and tubular nut, the top of described solid end socket is protruded on described positioning beam, described solid end socket is provided with the stopper slot with the hemispherical nose adaptation of spacer pin, the top of described bottom needle body is connected with described tubular nut by screw thread, the spring II clamped between described bottom needle body and described tubular nut is provided with in described tubular nut, balancing weight is connected with in the bottom of described bottom needle body, described balancing weight is positioned at the below of described operation passage, scale I is provided with vertically at the middle part of described bottom needle body, the bottom outer-edge of described tubular nut circumferentially arranges scale II, described scale I and described scale II form the measurement mechanism of micrometer caliper,
Be provided with on the top of two described columns the power transmission be slidably connected with it to drop hammer, described power transmission is dropped hammer between described crossbeam and described positioning beam;
Be provided with electric windlass at the top of described crossbeam, the motion of described electric windlass traction magnechuck, described magnechuck is arranged on the overcentre that described power transmission is dropped hammer.
2. the adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment according to claim 1 is dropped hammer continuously, it is characterized in that, described base is provided with leveling instrument and levelling device, and described leveling instrument is made up of two air levels, and two described air levels are vertically fixed on described base; Described levelling device is made up of four adjustable bolts, and four described adjustable bolts divide corner, the bottom place being located at described base.
3. the adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment according to claim 1 is dropped hammer continuously, it is characterized in that, two described columns are formed with the rule arranged from bottom to up.
4. the adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment according to claim 1 is dropped hammer continuously, it is characterized in that, the both sides that described power transmission is dropped hammer are contacted with corresponding described column by pulley.
5. the adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment according to claim 1 is dropped hammer continuously, and it is characterized in that, described positioning beam adopts screw to be connected with two described columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870169.8U CN204314478U (en) | 2014-12-31 | 2014-12-31 | A kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment is dropped hammer continuously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870169.8U CN204314478U (en) | 2014-12-31 | 2014-12-31 | A kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment is dropped hammer continuously |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204314478U true CN204314478U (en) | 2015-05-06 |
Family
ID=53136783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420870169.8U Active CN204314478U (en) | 2014-12-31 | 2014-12-31 | A kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment is dropped hammer continuously |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204314478U (en) |
-
2014
- 2014-12-31 CN CN201420870169.8U patent/CN204314478U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103808499B (en) | A kind of vibration isolator dynamic stiffness method of testing and device thereof | |
| CN104374655B (en) | A kind of shock vibration country rock testing equipment | |
| CN103293069B (en) | Multidirectional high energy and high speed electromagnetic percussion intelligent control test device and method | |
| CN106568659A (en) | Impact testing apparatus | |
| CN104990814A (en) | Impact test device and test method for nuclear power station U-shaped pole type anti-flinging piece | |
| CN108918074A (en) | A kind of shock loading analog machine and application method based on intellectual material damper | |
| Tan et al. | Experimental study on the outrigger damping system for high-rise building | |
| CN105606472A (en) | Anchor rod impact test device and method thereof | |
| RU2625639C1 (en) | Stand for impact testing | |
| CN105300679B (en) | A kind of arrester hook falls warship simulation test device | |
| CN207557018U (en) | A kind of impact test apparatus | |
| CN104502953A (en) | Adjustable force-transmitting type continuous drop hammer suitable for multi-point seismic oscillation indoor experiment | |
| CN108414178A (en) | Percussion mechanism with pooling feature and its application process | |
| CN204314478U (en) | A kind of adjustable type power transmission formula being applicable to multi-point Ground Motion laboratory experiment is dropped hammer continuously | |
| CN209979861U (en) | Broadband impact seismic source device for improving impact effect | |
| CN205209726U (en) | Battery heavy object impact tester | |
| CN207779660U (en) | A kind of impact amplifier | |
| Langran-Wheeler et al. | Characterisation of reflected blast loads in the very-near field from non-spherical explosive charges | |
| KR101648700B1 (en) | Horizontal type pulse shock tester | |
| CN114544706B (en) | Experiment system and method for measuring energy distribution proportion relation of explosion products | |
| CN105181437A (en) | Tension shear fracture simulation test device for fractured rock mass | |
| CN210005205U (en) | large-scale precision impact test system | |
| Zhang | High acceleration board level reliability drop test using dual mass shock amplifier | |
| RU142004U1 (en) | IMPACT STAND | |
| CN103926194B (en) | A kind of simple and easy padded coaming energy-absorbing test unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |