CN110095356B - Dynamic counter-force measuring device under impact load effect - Google Patents
Dynamic counter-force measuring device under impact load effect Download PDFInfo
- Publication number
- CN110095356B CN110095356B CN201910340305.XA CN201910340305A CN110095356B CN 110095356 B CN110095356 B CN 110095356B CN 201910340305 A CN201910340305 A CN 201910340305A CN 110095356 B CN110095356 B CN 110095356B
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- connecting column
- bottom support
- screw rod
- guide sleeve
- bearing plate
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
Abstract
The invention discloses a dynamic counter-force measuring device under the action of impact load, which comprises a concave bottom support, wherein a lower bearing plate is arranged in the bottom support, a guide sleeve is arranged above the bottom support, a connecting column is sleeved in the guide sleeve, a threaded hole is formed in the upper part of the connecting column, the lower part of the connecting column is sealed, the sealed end of the connecting column penetrates through the guide sleeve and is connected with the lower bearing plate, a screw rod is sleeved in the threaded hole of the connecting column, the threaded hole is matched with the screw rod for use, and the upper end of the screw rod is connected with an upper bearing plate. The device disclosed by the invention well solves the problem that the force sensor cannot transfer force well due to partial tilting caused by external force in the actual engineering, provides a new method for measuring the dynamic reaction force of the structure under the action of impact load, and has good innovation and application prospect.
Description
Technical Field
The invention belongs to the technical field of structural engineering, and relates to a dynamic reaction force measuring device under the action of impact load.
Background
Impact load refers to the load applied to a member in a short time or suddenly, and the impact test is an experimental method for determining the impact resistance of a material under the impact load. Impact strength is a measure of the ability of a material to resist impact or to determine the degree of brittleness and toughness of a material. The impact resistance is one of the mechanical parameters which are difficult to accurately characterize, and even if a standard sample and a standard experimental method are used, only an experimental result which has relative comparative significance under specific conditions can be obtained.
At present, the research content on force sensors at home and abroad is quite little. In the test process, the experimental group discovers that in order to measure the stress condition of the reinforced concrete slab under the action of falling rock impact, a force sensor needs to be arranged below the slab, but in the actual engineering, on one hand, the force sensor and the concrete slab are in poor contact due to the manufacturing error of the concrete slab and the insufficient flatness of a bottom plate; on the other hand, the direction of the impact force acting on the upper part is uncertain, so that the force sensor is partially tilted in the working process, and the testing precision of the test is influenced to a great extent.
Disclosure of Invention
The invention aims to provide a dynamic reaction force measuring device under the action of impact load, which solves the problem that a force sensor cannot transfer force well due to partial tilting caused by external force when stressed in actual engineering.
The invention adopts the technical scheme that the dynamic counter-force measuring device under the action of impact load comprises a concave-shaped bottom support, a lower bearing plate is arranged in the bottom support, a guide sleeve is arranged above the bottom support, a connecting column is sleeved in the guide sleeve, a threaded hole is formed in the upper part of the connecting column, the lower part of the connecting column is sealed, the sealed end of the connecting column penetrates through the guide sleeve and is connected with the lower bearing plate, a screw rod is sleeved in the threaded hole of the connecting column, the threaded hole is matched with the screw rod for use, and the upper end of the screw rod is connected with an upper bearing plate.
The invention is also characterized in that:
the guide sleeve comprises a pipe column, a raised edge is arranged on the edge of the bottom of the pipe column, a connecting column is sleeved in the pipe column, and the raised edge is arranged above the bottom support.
The bottom support comprises a bottom plate, side walls perpendicular to the bottom plate are arranged on two sides of the bottom plate, and the side walls on two sides of the bottom support are fixedly connected with the protruding edges through bolts.
The closed end of the connecting column is fixedly connected with the lower bearing plate through a countersunk bolt.
The upper end of the screw rod is fixedly connected with the upper bearing plate through a countersunk bolt.
The invention has the beneficial effects that:
the device solves the problem that the force sensor is tilted due to external force in the practical application process, and can ensure that the upper surface and the lower surface of the force sensor are smooth and the force can be transmitted uniformly. The force is uniformly transmitted to the force sensor through the components on the device, and the normal use of the force sensor is not influenced. Simultaneously, the requirements of different tests on the height of the device can be met by adjusting the screwing depth of the screw rod in the connecting column, and the application performance is improved.
Drawings
FIG. 1 is a schematic structural diagram of a dynamic reaction force measuring device under the action of impact load according to the present invention;
FIG. 2 is an exploded view of a dynamic reaction force measuring device under impact load in accordance with the present invention;
FIG. 3 is a top view of the bottom bracket of the dynamic reaction force measuring device under impact load in accordance with the present invention;
FIG. 4 is a top view of a guide sleeve of a dynamic reaction force measuring device of the present invention under impact load;
FIG. 5 is a top cylindrical view of a dynamic reaction force measuring device under impact load in accordance with the present invention;
FIG. 6 is a top view of a screw of a dynamic reaction force measuring device under impact load in accordance with the present invention;
FIG. 7 is a top plan view of the upper carrier plate of the dynamic reaction force measuring device under impact load in accordance with the present invention;
FIG. 8 is a top view of the lower carrier plate of the dynamic reaction force measuring device under impact load in accordance with the present invention.
In the figure, 1, a bottom support, 2, a sensor position, 3, a guide sleeve, 4, a bolt, 5, a connecting column, 6, a lower bearing plate, 7, a countersunk head bolt, 8, a screw rod, 9, an upper bearing plate, 3-1, a pipe column and 3-2, protruding edges.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a dynamic reaction force measuring device under the action of impact load, which has a structure shown in figures 1 to 8 and comprises a concave bottom support 1, wherein the bottom support comprises a bottom plate, two sides of the bottom plate are provided with side walls perpendicular to the bottom plate, a lower support plate 6 is arranged in the bottom support 1, the side walls of the two sides of the bottom support 1 are provided with 4 bolt holes, the bottom support 1 is connected with a guide sleeve 3, the guide sleeve 3 comprises a pipe column 3-1 and a protruding edge 3-2, the protruding edge 3-2 is also provided with 4 bolt holes at the position corresponding to the bolt holes of the bottom support 1, the side walls of the two sides of the bottom support 1 and the protruding edge 3-2 are fixedly connected through an M10 bolt 4, a connecting column 5 is sleeved in the guide sleeve 3, the connecting column 5 can move along the guide sleeve 3 in the vertical direction, the upper part of the connecting column 5 is provided with a threaded hole, the lower part of the connecting column 5 is closed, guide sleeve 3 is passed to spliced pole 5's blind end, spliced pole 5 is close to the one end central point department of putting of bottom support 1 and is provided with the bolt hole, corresponding position at lower carrier plate 6 also is provided with the bolt hole of equidimension, through countersunk M8 bolt 7 fixed connection between lower carrier plate 6 and spliced pole 5, threaded hole endotheca at spliced pole 5 has screw rod 8, screw rod 8 can be through the screw thread at spliced pole 5 internal rotation, the upper end that is located screw rod 8 is connected with upper bearing plate 9, the one end central point that screw rod 8 is close to upper bearing plate 9 puts and is provided with the bolt hole, also be provided with the bolt hole of equidimension in upper bearing plate 9's corresponding position, go up through M8 countersunk bolt 7 fixed connection between carrier plate 9 and the screw rod 8.
The invention relates to a dynamic reaction force measuring device under the action of impact load, which comprises the following working processes:
the upper bearing plate 9 and the threaded screw rod 8 are fixed together through the M8 countersunk head bolt 7, the lower part of the threaded screw rod 8 is screwed into the connecting column 5 with internal threads, then the connecting column 5 is inserted into the guide sleeve hanging tube 3, the bottom of the connecting column 5 is fixed together with the lower bearing plate 6 through the M8 countersunk head bolt 7, and finally, the guide sleeve 3 and the bottom support 1 are fixed together through the M10 bolt 4.
During the experiment, because last carrier plate 9, screw rod 8, spliced pole 5, lower carrier plate 6 are together fixed, and spliced pole 5 can be followed guide sleeve 3 and removed in vertical direction, put sensor position 2 with the sensor, press the lower carrier plate 6 comprehensive contact that last carrier plate 9 made the sensor and this device, place this device in test platform board below next, twist into the degree of depth adjusting device's height of spliced pole 5 through screw rod 8 for last carrier plate 9 and test platform board contact comprehensively. The dynamic counter force measuring device under the impact load replaces a simple force sensor, can avoid the phenomenon that the simple force sensor is partially tilted in the working process, and can improve the testing precision of the test.
Claims (1)
1. The dynamic reaction force measuring device under the action of impact load is characterized by comprising a concave bottom support (1), wherein a lower bearing plate (6) is arranged in the bottom support (1), a guide sleeve (3) is arranged above the bottom support (1), a connecting column (5) is sleeved in the guide sleeve (3), a threaded hole is formed in the upper part of the connecting column (5), the lower part of the connecting column (5) is sealed, the sealed end of the connecting column (5) penetrates through the guide sleeve (3) and is connected with the lower bearing plate (6), a screw rod (8) is sleeved in the threaded hole of the connecting column (5), the threaded hole is matched with the screw rod (8) for use, and the upper end of the screw rod (8) is connected with an upper bearing plate (9);
the guide sleeve (3) comprises a pipe column (3-1), a raised edge (3-2) is arranged on the bottom edge of the pipe column (3-1), a connecting column (5) is sleeved in the pipe column (3-1), and the raised edge (3-2) is arranged above the bottom support (1);
the bottom support (1) comprises a bottom plate, side walls perpendicular to the bottom plate are arranged on two sides of the bottom plate, and the side walls on the two sides of the bottom support (1) are fixedly connected with the protruding edges (3-2) through bolts (4);
the closed end of the connecting column (5) is fixedly connected with the lower bearing plate (6) through a countersunk bolt (7);
the upper end of the screw rod (8) is fixedly connected with the upper bearing plate (9) through a countersunk bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340305.XA CN110095356B (en) | 2019-04-25 | 2019-04-25 | Dynamic counter-force measuring device under impact load effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910340305.XA CN110095356B (en) | 2019-04-25 | 2019-04-25 | Dynamic counter-force measuring device under impact load effect |
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| CN110095356A CN110095356A (en) | 2019-08-06 |
| CN110095356B true CN110095356B (en) | 2022-06-03 |
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| CN201910340305.XA Active CN110095356B (en) | 2019-04-25 | 2019-04-25 | Dynamic counter-force measuring device under impact load effect |
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| CN (1) | CN110095356B (en) |
Citations (7)
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|---|---|---|---|---|
| JPS6192209A (en) * | 1984-10-08 | 1986-05-10 | Fudo Constr Co Ltd | Ground strength detecting device |
| CN2413279Y (en) * | 2000-03-23 | 2001-01-03 | 铁道部科学研究院铁道建筑研究所 | Drop hammer type roadbed stiffness tester |
| CN202057451U (en) * | 2011-05-09 | 2011-11-30 | 延锋伟世通汽车饰件系统有限公司 | High-speed dynamic calibration device for thin-film force transducer |
| CN205748783U (en) * | 2016-04-29 | 2016-11-30 | 沈阳工业大学 | The installing mechanism of explosion test pressure transducer in a kind of vessel cabin |
| CN205748763U (en) * | 2016-04-29 | 2016-11-30 | 沈阳工业大学 | Can the naval vessel implosion test pressure transducer installing mechanism of vertical installation |
| CN207850582U (en) * | 2018-01-31 | 2018-09-11 | 西安领邦高铁光电有限公司 | A kind of elasticity reversal thrust-measuring device |
| CN109668798A (en) * | 2018-07-13 | 2019-04-23 | 中国矿业大学(北京) | A kind of anchor pole shock resistance experimental apparatus for testing and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772083A (en) * | 2016-12-26 | 2017-05-31 | 吉林大学 | A kind of automobile-used flat impact experiment apparatus of lithium ion battery high speed water |
| CN108387461A (en) * | 2018-03-22 | 2018-08-10 | 东北大学 | A kind of drop hammer type dynamic impact testing machine and test method |
| CN108918251B (en) * | 2018-06-20 | 2021-04-13 | 哈尔滨工业大学（深圳） | Height-adjustable support applied to continuous beam test |
| CN109085054A (en) * | 2018-08-30 | 2018-12-25 | 吉林大学 | A kind of experimental rig measuring material temperature impact property |
-
2019
- 2019-04-25 CN CN201910340305.XA patent/CN110095356B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6192209A (en) * | 1984-10-08 | 1986-05-10 | Fudo Constr Co Ltd | Ground strength detecting device |
| CN2413279Y (en) * | 2000-03-23 | 2001-01-03 | 铁道部科学研究院铁道建筑研究所 | Drop hammer type roadbed stiffness tester |
| CN202057451U (en) * | 2011-05-09 | 2011-11-30 | 延锋伟世通汽车饰件系统有限公司 | High-speed dynamic calibration device for thin-film force transducer |
| CN205748783U (en) * | 2016-04-29 | 2016-11-30 | 沈阳工业大学 | The installing mechanism of explosion test pressure transducer in a kind of vessel cabin |
| CN205748763U (en) * | 2016-04-29 | 2016-11-30 | 沈阳工业大学 | Can the naval vessel implosion test pressure transducer installing mechanism of vertical installation |
| CN207850582U (en) * | 2018-01-31 | 2018-09-11 | 西安领邦高铁光电有限公司 | A kind of elasticity reversal thrust-measuring device |
| CN109668798A (en) * | 2018-07-13 | 2019-04-23 | 中国矿业大学(北京) | A kind of anchor pole shock resistance experimental apparatus for testing and method |
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| CN110095356A (en) | 2019-08-06 |
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