CN112525669B - Resiliometer with perpendicular auxiliary function - Google Patents
Resiliometer with perpendicular auxiliary function Download PDFInfo
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- CN112525669B CN112525669B CN202110001157.6A CN202110001157A CN112525669B CN 112525669 B CN112525669 B CN 112525669B CN 202110001157 A CN202110001157 A CN 202110001157A CN 112525669 B CN112525669 B CN 112525669B
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- supporting leg
- vertical
- resiliometer
- sliding sleeve
- supporting legs
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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
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/52—Investigating hardness or rebound hardness by measuring extent of rebound of a striking body
-
- 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
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
- G01N2203/0083—Rebound strike or reflected energy
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a resiliometer with a vertical auxiliary function, which comprises a resiliometer body, wherein the front end of the resiliometer body is provided with a vertical auxiliary mechanism, the vertical auxiliary mechanism comprises at least three groups of supporting legs, the supporting legs are arranged in an annular array relative to the axis of the resiliometer body, the supporting legs are of L-shaped structures, the supporting legs are rotatably arranged relative to the resiliometer body, the rotation axes of the supporting legs are positioned at the upper ends of the supporting legs and are perpendicular to the axis of the resiliometer body, all the supporting legs synchronously rotate, and when the supporting legs rotate, the included angle between the vertical edges of the supporting legs and the vertical plane is 0-n, and the angle between the vertical edges of the supporting legs and the vertical plane is less than or equal to 15 degrees.
Description
Technical Field
The invention relates to the technical field of concrete testing instruments, in particular to a rebound instrument with a vertical auxiliary function.
Background
When the rebound value of the concrete strength is measured, the axis of the rebound instrument is required to be always perpendicular to the concrete detection surface, and the rebound instrument is required to be slowly pressed, accurately read and quickly reset. This operation is relatively rapid and the axis of the resiliometer may be tilted so that the impact direction is not perpendicular to the test plane, resulting in inaccurate test results.
Disclosure of Invention
The invention aims to overcome the existing defects and provide the resiliometer with the vertical auxiliary function, and the vertical auxiliary mechanism is arranged at the front end of the resiliometer body to ensure that the axis of the resiliometer and the test surface are in a vertical state when the impact hammer in the resiliometer is excited, so that the problems in the background art can be effectively solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a resiliometer with perpendicular auxiliary function, includes the resiliometer body, the front end of resiliometer body is provided with perpendicular auxiliary mechanism, perpendicular auxiliary mechanism includes the supporting leg of not less than three group, the supporting leg is annular array arrangement about the axis of resiliometer body, the supporting leg is L shape structure, the supporting leg rotates the installation for the resiliometer body, the axis of rotation of supporting leg is in the upper end of supporting leg and perpendicular to resiliometer body's axis, and all supporting legs synchronous rotation, and when the supporting leg rotated, the contained angle between the vertical flange of supporting leg and the vertical plane was 0 ~ n,0 ~ n is less than 15, and when the vertical flange of supporting leg was in 0 with vertical plane contained angle, the vertical flange of supporting leg was perpendicular with the plane of awaiting measuring.
As a preferable technical scheme of the invention, the vertical auxiliary mechanism further comprises a sliding sleeve, the sliding sleeve and the resiliometer body are slidably arranged along the axis, an elastic piece is arranged between the sliding sleeve and the resiliometer body along the relative sliding direction, the upper ends of the supporting legs are rotatably arranged with the sliding sleeve, torsion springs are arranged at the rotating positions of the supporting legs and the sliding sleeve, the supporting legs are limited to rotate to the vertical arms relative to the sliding sleeve and then continue to rotate outwards, and when the vertical arms of the supporting legs rotate to the vertical state, the impact hammer in the resiliometer body is positioned at the front end of the excitation position and continues to extrude the resiliometer body, the elastic piece is compressed, and the impact hammer reaches the excitation position;
through setting up the sliding sleeve structure, make the resiliometer body press the in-process, can carry out angle adjustment until perpendicular to test plane, make perpendicular auxiliary mechanism wholly take place relative motion with the resiliometer body afterwards to arouse the impact hammer simultaneously, thereby guarantee the impact hammer in-process of working, the axis of resiliometer body is perpendicular to test plane all the time.
As a preferable technical scheme of the invention, the vertical auxiliary mechanism further comprises a synchronous mechanism for synchronously rotating a plurality of groups of supporting legs, the synchronous mechanism comprises a toothed ring and a rack, the toothed ring is coaxially and rotatably installed with the sliding sleeve, the back of the toothed ring is provided with spiral threads, the rack is slidably installed with the sliding sleeve along the radial direction of the sliding sleeve, the back of the rack is provided with thread teeth meshed with the spiral threads of the toothed ring, and a gear meshed with the rack is coaxially and fixedly arranged at a rotating shaft of the supporting legs;
when the supporting legs rotate, the racks are driven to axially slide, the multiple groups of racks are meshed with the toothed ring simultaneously, and the displacement of the multiple groups of racks is limited to be the same through the toothed ring, so that the same rotating angle of the supporting legs is ensured.
As a preferable technical scheme of the invention, a motor for driving the toothed ring to rotate is arranged outside the toothed ring, a pressure sensor is arranged at the end part of the horizontal arm of the supporting leg, and the pressure sensor is electrically connected with the motor;
the motor drives the toothed ring to rotate, so that the supporting legs are driven to rotate, and the problem that the spiral threads are reversely blocked is solved.
As a preferable technical scheme of the invention, the vertical auxiliary mechanism further comprises a synchronous mechanism for synchronously rotating a plurality of groups of supporting legs, the synchronous mechanism comprises a toothed ring and a rack, the toothed ring and the sliding sleeve are coaxially and rotatably installed, the rack is radially and slidably installed with the sliding sleeve along the sliding sleeve, a gear meshed with the rack is coaxially and fixedly arranged at a rotating shaft of the supporting legs, a screw is coaxially arranged at one end of the rack, a screw nut is matched and installed outside the screw, a gear meshed with the toothed ring is coaxially and fixedly arranged outside the screw nut, and the screw nut and the sliding sleeve are rotatably installed;
the screw is pushed to axially move through the rack, the screw nut is driven to rotate, the toothed ring is limited, the consistent feeding degree of the rack is ensured, and the consistent rotating angle of the supporting leg is ensured.
As a preferable technical scheme of the invention, one end of the horizontal arm of the supporting leg far away from the bending part is rotatably provided with a roller, and the axis of the roller is perpendicular to the axis of the resiliometer body;
through setting up the gyro wheel, with the supporting leg with the sliding friction of awaiting measuring the face change into rolling friction, effectively reduce the resistance when extrudeing.
As a preferable technical scheme of the invention, the two ends of the horizontal arm of the supporting leg are respectively provided with a roller in a rotating way, the axis of each roller is perpendicular to the axis of the resiliometer body, and the rotating shaft of each roller is provided with a pressure sensor;
judging whether the supporting leg is in contact with the testing surface or not by arranging the pressure sensor, when the pressure sensor far away from one end of the bending part detects pressure, starting the motor, driving the toothed ring to rotate, driving the supporting leg to swing, and when the pressure sensor of the bending part detects pressure, stopping the motor.
Compared with the prior art, the invention has the beneficial effects that: this resiliometer with perpendicular auxiliary function is through setting up perpendicular auxiliary mechanism in the front end, guarantees that the resiliometer body when squeezing, can keep the state of perpendicular to test surface, and guarantees that inside impact hammer is when arousing, and the axis of resiliometer is perpendicular to test surface all the time, guarantees that the test result is accurate.
Drawings
FIG. 1 is a schematic view of the present invention in a non-operating state;
FIG. 2 is a schematic view of the working state of the present invention;
FIG. 3 is a schematic view of the vertical auxiliary mechanism in the non-working state of the present invention;
FIG. 4 is a front view of the vertical assist mechanism in the non-operational state of the present invention;
FIG. 5 is a schematic view of the vertical auxiliary mechanism in the working state of the present invention;
FIG. 6 is a front view of the vertical assist mechanism in the operative state of the present invention;
FIG. 7 is a schematic view of a sliding sleeve according to the present invention;
FIG. 8 is a schematic view of a support leg of the present invention;
FIG. 9 is a schematic view of a roller in accordance with the present invention.
In the figure: 1 resiliometer body, 2 supporting legs, 3 sliding sleeves, 4 synchronous mechanisms, 401 racks, 402 toothed rings, 5 idler wheels and 6 elastic pieces.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution: the utility model provides a resiliometer with perpendicular auxiliary function, including resiliometer body 1, the front end of resiliometer body 1 is provided with perpendicular auxiliary mechanism, perpendicular auxiliary mechanism includes the supporting leg 2 that is not less than three groups, supporting leg 2 is annular array with respect to the axis of resiliometer body 1 and arranges, supporting leg 2 is L shape structure, supporting leg 2 rotates the installation for resiliometer body 1, the axis of rotation of supporting leg 2 is in the upper end of supporting leg 2 and perpendicular to resiliometer body 1, and all supporting legs 2 synchronous rotation, when supporting leg 2 rotates, contained angle between the vertical limit of supporting leg 2 and the vertical plane is 0 ° -n,0 ° < n is no less than 15 °, when the vertical limit of supporting leg 2 is in 0 with vertical plane contained angle, the vertical limit of supporting leg 2 is perpendicular with the plane that awaits measuring.
The vertical auxiliary mechanism further comprises a sliding sleeve 3, the sliding sleeve 3 and the resiliometer body 1 are slidably mounted along the axis, an elastic piece 6 is arranged between the sliding sleeve 3 and the resiliometer body 1 along the relative sliding direction, the upper ends of the supporting legs 2 and the sliding sleeve 3 are rotatably mounted, torsion springs are arranged at the rotating positions of the supporting legs 2 and the sliding sleeve 3, the supporting legs 2 are limited to rotate to the vertical arms relative to the sliding sleeve 3 and then continue to rotate outwards, and when the vertical arms of the supporting legs 2 rotate to the vertical state, the impact hammer in the resiliometer body 1 is positioned at the front end of the excitation position and continues to extrude the resiliometer body 1, the elastic piece 6 is compressed, and the impact hammer reaches the excitation position;
through setting up sliding sleeve 3 structure, make resiliometer body 1 press the in-process, can carry out angle adjustment until perpendicular to test plane, make perpendicular auxiliary mechanism wholly take place relative motion with resiliometer body 1 afterwards to arouse the impact hammer simultaneously, thereby guarantee that the axis of resiliometer body 1 is perpendicular to test plane all the time in the impact hammer course of working.
The vertical auxiliary mechanism further comprises a synchronous mechanism 4 for synchronously rotating the plurality of groups of supporting legs 2, the synchronous mechanism 4 comprises a toothed ring 402 and a rack 401, the toothed ring 402 is coaxially and rotatably installed with the sliding sleeve 3, spiral threads are arranged on the back of the toothed ring 402, the rack 401 is radially and slidably installed with the sliding sleeve 3 along the sliding sleeve 3, thread teeth meshed with the spiral threads of the toothed ring 402 are arranged on the back of the rack 401, and gears meshed with the rack 401 are coaxially and fixedly arranged at the rotating shaft of the supporting legs 2;
when the support legs 2 rotate, the racks 401 are driven to axially slide, the multiple groups of racks 401 are simultaneously meshed with the toothed rings 402, and the multiple groups of racks 401 are limited to have the same displacement through the toothed rings 402, namely, the same rotation angle of the support legs 2 is ensured.
The outside of the toothed ring 402 is provided with a motor for driving the toothed ring to rotate, the end part of the horizontal arm of the supporting leg 2 is provided with a pressure sensor, and the pressure sensor is electrically connected with the motor;
the motor drives the toothed ring 402 to rotate, so that the supporting leg 2 is driven to rotate, and the problem of reverse blocking of the spiral threads is solved.
The vertical auxiliary mechanism further comprises a synchronous mechanism 4 for synchronously rotating the plurality of groups of supporting legs 2, the synchronous mechanism 4 comprises a toothed ring 402 and a rack 401, the toothed ring 402 is coaxially and rotatably installed with the sliding sleeve 3, the rack 401 is radially and slidably installed with the sliding sleeve 3 along the sliding sleeve 3, a gear engaged with the rack 401 is coaxially and fixedly arranged at a rotating shaft of the supporting legs 2, a screw is coaxially arranged at one end of the rack 401, a screw nut is matched and installed outside the screw, a gear engaged with the toothed ring 402 is coaxially and fixedly arranged outside the screw nut, and the screw nut is rotatably installed with the sliding sleeve 3;
the rack 401 pushes the screw rod to axially move so as to drive the screw rod nut to rotate, thereby driving the toothed ring 402 to rotate, being limited by the toothed ring 402, ensuring the consistent feeding degree of the rack 401 and ensuring the consistent rotation angle of the supporting leg 2.
The horizontal arm of the supporting leg 2 is provided with a roller 5 in a rotating way at one end far away from the bending part, and the axis of the roller 5 is perpendicular to the axis of the resiliometer body 1;
by arranging the roller 5, the sliding friction between the supporting leg 2 and the surface to be tested is converted into rolling friction, so that the resistance during extrusion is effectively reduced.
The two ends of the horizontal arm of the supporting leg 2 are respectively provided with a roller 5 in a rotating way, the axis of each roller 5 is perpendicular to the axis of the resiliometer body 1, and a pressure sensor is arranged at the rotating shaft of each roller 5;
judging whether the supporting leg 2 contacts the testing surface or not by arranging the pressure sensor, when the pressure sensor far away from one end of the bending part detects pressure, starting the motor, driving the toothed ring 402 to rotate, driving the supporting leg 2 to swing, and when the pressure sensor of the bending part detects pressure, stopping the motor.
When in use: taking three groups of supporting legs 2 as an example in the vertical auxiliary mechanism, the end parts of the three groups of supporting legs 2 are all provided with pressure sensors, when one group of supporting legs 2 does not detect a pressure value, at least one group of supporting legs 2 does not contact with a testing surface, at the moment, the rebound device body 1 and the testing surface are not in a non-vertical state, only when the three groups of pressure sensors detect the pressure value, the motor starts to drive the toothed ring 402 to rotate, the supporting legs 2 can rotate, the rebound device can be extruded inwards, namely, only the rebound device is in a vertical state, the rebound device can be extruded, in the extrusion process, the rotation speeds of the three groups of supporting legs 2 are synchronous, namely, the rebound device is always in the vertical state in the extrusion process, and in order to avoid the non-vertical state in the later extrusion stage, the vertical auxiliary mechanism can be retracted backwards under the action of the elastic piece 6, so that the rebound hammer is enabled to move to an excitation position to be excited, and the rebound device is prevented from being excited in the non-vertical state.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. Resiliometer with perpendicular auxiliary function, including resiliometer body (1), its characterized in that: the utility model provides a rebound device, including rebound device body (1), the front end of rebound device body (1) is provided with perpendicular auxiliary mechanism, perpendicular auxiliary mechanism includes supporting leg (2) that are not less than three groups, supporting leg (2) are annular array with respect to the axis of rebound device body (1) and arrange, supporting leg (2) are L shape structure, supporting leg (2) rotate for rebound device body (1) and install, the axis of rotation of supporting leg (2) is in the upper end of supporting leg (2) and perpendicular to rebound device body (1) axis, and all supporting legs (2) synchronous rotation, and when supporting leg (2) rotate, the contained angle between vertical limit and the vertical plane of supporting leg (2) is 0 ° -n, and 0 ° < n is 15 ° when the vertical limit and the vertical plane contained angle of supporting leg (2) are in 0 °, and are perpendicular with the plane of awaiting measuring, and when the vertical limit and the vertical plane contained angle of supporting leg are in n, the horizontal arm tip of supporting leg (2) surpasses rebound device body (1) tip, makes rebound device body (1) to extrude the position when this position, can not excited by the hammer.
2. The resiliometer with vertical assist function of claim 1, wherein: the vertical auxiliary mechanism further comprises a sliding sleeve (3), the sliding sleeve (3) and the resiliometer body (1) are slidably mounted along the axis, an elastic piece (6) is arranged on the sliding sleeve (3) and the resiliometer body (1) along the relative sliding direction, the upper end of the supporting leg (2) is rotatably mounted with the sliding sleeve (3), a torsion spring is arranged at the rotating position of the supporting leg (2) and the sliding sleeve (3), the supporting leg (2) is limited to rotate to the vertical arm relative to the sliding sleeve (3) and then continue to rotate outwards, and when the vertical arm of the supporting leg (2) rotates to the vertical state, the impact hammer in the resiliometer body (1) is positioned at the front end of the excitation position and continues to extrude the resiliometer body (1), the elastic piece (6) is compressed, and the impact hammer reaches the excitation position.
3. The resiliometer with vertical assist function of claim 2, wherein: the vertical auxiliary mechanism further comprises a synchronizing mechanism (4) which enables the supporting legs (2) to synchronously rotate, the synchronizing mechanism (4) comprises a toothed ring (402) and a rack (401), the toothed ring (402) and the sliding sleeve (3) are coaxially rotatably installed, spiral threads are formed in the back of the toothed ring (402), the rack (401) is radially and slidably installed with the sliding sleeve (3) along the sliding sleeve (3), threaded teeth meshed with the spiral threads of the toothed ring (402) are formed in the back of the rack (401), and gears meshed with the rack (401) are coaxially and fixedly arranged at the rotating shaft of the supporting legs (2).
4. A resiliometer with vertical assistance according to claim 3, wherein: the outside of ring gear (402) is provided with its pivoted motor of drive, the horizontal arm tip of supporting leg (2) is provided with pressure sensor, pressure sensor is connected with the motor electricity.
5. The resiliometer with vertical assist function of claim 2, wherein: the vertical auxiliary mechanism further comprises a synchronizing mechanism (4) which enables the supporting legs (2) to synchronously rotate, the synchronizing mechanism (4) comprises a toothed ring (402) and a rack (401), the toothed ring (402) and the sliding sleeve (3) are coaxially installed in a rotating mode, the rack (401) is radially and slidably installed with the sliding sleeve (3) along the sliding sleeve (3), gears meshed with the rack (401) are coaxially and fixedly arranged at the rotating shaft of the supporting legs (2), a screw is coaxially arranged at one end of the rack (401), a screw nut is matched with the screw, gears meshed with the toothed ring (402) are coaxially and fixedly arranged outside the screw nut, and the screw nut is rotatably installed with the sliding sleeve (3).
6. A resiliometer with vertical assistance according to any of the claims 1-5, wherein: the one end rotation that supporting leg (2) horizontal arm kept away from the portion of bending is provided with gyro wheel (5), the axis of gyro wheel (5) is perpendicular to the axis of resiliometer body (1).
7. The resiliometer with vertical assist function of claim 4, wherein: the rebound device is characterized in that rollers (5) are rotatably arranged at two ends of the horizontal arm of the supporting leg (2), the axis of each roller (5) is perpendicular to the axis of the rebound device body (1), and a pressure sensor is arranged at the rotating shaft of each roller (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110001157.6A CN112525669B (en) | 2021-01-04 | 2021-01-04 | Resiliometer with perpendicular auxiliary function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110001157.6A CN112525669B (en) | 2021-01-04 | 2021-01-04 | Resiliometer with perpendicular auxiliary function |
Publications (2)
| Publication Number | Publication Date |
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| CN112525669A CN112525669A (en) | 2021-03-19 |
| CN112525669B true CN112525669B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110001157.6A Active CN112525669B (en) | 2021-01-04 | 2021-01-04 | Resiliometer with perpendicular auxiliary function |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102402333B1 (en) * | 2022-04-13 | 2022-05-30 | 주식회사 한진이앤씨 | Schmidt concrete test hammer with vertical ancillary unit |
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| CN211426142U (en) * | 2020-01-16 | 2020-09-04 | 余海兵 | Detection apparatus for building structure bearing capacity |
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| JPH10160654A (en) * | 1996-11-29 | 1998-06-19 | Sogo Concrete Service:Kk | Positioning tool for schmitt hammer |
| KR20140012472A (en) * | 2012-07-20 | 2014-02-03 | (주) 한국시설안전연구원 | Automatic hit point mark and vertical ancillary equipment for schmidt concrete test hammer |
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