CN113670754B - Electromagnetic power concrete quality detection resiliometer device - Google Patents
Electromagnetic power concrete quality detection resiliometer device Download PDFInfo
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- CN113670754B CN113670754B CN202111047043.1A CN202111047043A CN113670754B CN 113670754 B CN113670754 B CN 113670754B CN 202111047043 A CN202111047043 A CN 202111047043A CN 113670754 B CN113670754 B CN 113670754B
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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
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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
- 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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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides an electromagnetic power concrete quality detection resiliometer device. The invention relates to an electromagnetic power concrete quality detection resiliometer device, which comprises a shell, an electromagnetic power device and a rebound indication mechanism which are arranged in the shell, and a handle arranged outside the shell, wherein the rebound indication mechanism comprises the rebound mechanism and the indication mechanism, the electromagnetic power device comprises a coil, a fixed iron core, a movable iron core and an adjusting nut, the coil of the fixed iron core generates electromagnetic effect to attract the movable iron core, a pull rod is inserted in a central guide rod and connected with a flicking rod, and the flicking rod and a flicking hammer are driven to a test emission position when the pull rod is attracted by the movable iron core, so that quick return is realized. According to the electromagnetic power concrete quality detection resiliometer device, the reset of the elastic hammer is rapidly completed in an electromagnetic power mode, the continuous firing of the elastic hammer rod can be realized, the labor intensity of workers is reduced instead of completely relying on manpower, the instrument operation positioning is accurate, and the safety is good.
Description
Technical Field
The invention relates to a concrete structure quality nondestructive testing technology, in particular to an electromagnetic power concrete quality testing resiliometer device.
Background
The concrete resiliometer is a detection device, is suitable for detecting the strength of common building components, bridges and various concrete components (plates, beams, columns and bridges), and has the main technical index of impact function; spring impact tension spring steel degree; a spring hammer stroke; the maximum static friction force of the pointer system and the steel drilling rate are averaged.
The concrete resiliometer has the working principle that a spring drives a spring hammer and the spring hammer drives a pointer to rebound and indicates the rebound distance by the restoring force of instantaneous elastic deformation generated by the spring hammer rod striking the concrete surface. The ratio of the rebound distance to the distance between the rebound hammer and the rebound rod before impact is calculated according to the percentage, and the rebound value is used as one of indexes related to the compressive strength of the concrete to estimate the compressive strength of the concrete.
In the whole process of operating the resiliometer, the posture of holding the resiliometer needs to be paid attention to, and the middle part of the resiliometer is held by one hand to play a role in righting; the tail part of the instrument is pressed by the other hand, so that pressure is applied to the instrument, and an auxiliary righting effect is also achieved; the axis of the resiliometer is always vertical to the concrete test surface, the force is required to be uniform and slow, the alignment of the resiliometer and the test surface is required to be stabilized, the resiliometer is slowly pushed, the reading is fast, the striking rod of the firing projectile is completely pressed by manpower, and the operation labor intensity is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing an electromagnetic power concrete quality detection resiliometer device which can completely overcome the defects of high operation labor intensity of the existing resiliometer that the existing resiliometer is pressed by manpower to trigger a striking rod, quickly completes the reset of a striking hammer in an electromagnetic power mode, realizes the function of continuously triggering the striking rod, and has accurate instrument operation positioning and good safety.
The invention relates to an electromagnetic power concrete quality detection resiliometer device, which comprises a shell, an electromagnetic power device, a rebound indicating value mechanism and a handle, wherein the electromagnetic power device and the rebound indicating value mechanism are arranged in the shell, the handle is arranged outside the shell, the shell comprises a shell, an upper cap and a lower cap which are connected with two ends of the shell, the rebound indicating value mechanism comprises a rebound mechanism and an indicating value mechanism, the rebound mechanism comprises a central guide rod, a pull rod, a rebound hammer, a hook, a guiding device, a pressure spring, a rebound tension spring, a clamping ring and a guiding sliding block, the central guide rod is positioned at the central position in the shell, the upper end of the central guide rod is inserted into the rebound rod, the upper end of the rebound rod can extend out of the upper end face of the upper cap, the central position of the upper end of the upper cap is provided with a rebound rod extending hole, the circumferential direction of the rebound rod is arranged on the inner wall of the upper cap through the clamping ring, the lower end of the central guide rod is fixedly connected with the guiding sliding block, the guiding sliding block is in sliding fit with a pointer shaft, the lower terminal surface of direction slider is equipped with the spring mounting hole of vertical direction, spring in the spring mounting hole, the middle part of couple articulates in the side of direction slider, the one end of couple is couple joint end, the other end is the grafting end, the grafting end can insert spring and spring mounting hole in, the jump bit suit is at the middle part surface of center guide arm and can follow center guide arm and slide, the lower extreme of jump bit has the jack catch, the jack catch can with couple joint, the middle part of jump bit is formed with the boss, the jump bit extension spring suit is outside the jump bit pole, the both ends butt of jump bit extension spring are in the boss of snap ring and jump bit, the pressure spring suit is outside the pull rod, the both ends butt of pressure spring are on direction slider and guider respectively, the pull rod wears to establish in center guide arm and the upper end of pull rod and jump bit pole fixed connection, the lower extreme fixed connection of pull rod is on movable core, indication value mechanism includes the spring leaf, the electromagnetic power device comprises a power supply, a coil, a mounting seat, a fixed iron core and a movable iron core, wherein the mounting seat is provided with a central hole, the coil is symmetrically arranged on the mounting seat, the power supply supplies power for the coil, the fixed iron core is fixedly connected to the lower end in the central hole of the mounting seat and is positioned in the middle of the coil, a permanent magnet is arranged at the bottom of the movable iron core, the movable iron core is positioned above the fixed iron core in the base, the upper end of the movable iron core is fixedly connected with a pull rod, and the coil generates electromagnetic effect to attract the movable iron core when being electrified.
The invention discloses an electromagnetic power concrete quality detection resiliometer device, wherein the indicating mechanism further comprises an automatic recorder, a visible window is arranged on a machine shell and corresponds to the position of a measuring sliding block and a pointer shaft, the automatic recorder is arranged outside the visible window, and a camera of the automatic recorder is opposite to the measuring sliding block and the pointer shaft.
The invention discloses an electromagnetic power concrete quality detection resiliometer device, wherein a wiring port is arranged on a lower cover.
The invention discloses an electromagnetic power concrete quality detection resiliometer device, wherein a junction box is arranged outside a mounting seat.
The invention discloses an electromagnetic power concrete quality detection resiliometer device, wherein the section of a flicking end of a flicking rod is arc-shaped.
The invention discloses an electromagnetic power concrete quality detection resiliometer device, wherein the electromagnetic power device further comprises an adjusting nut, the adjusting nut is connected to a bottom end center hole of a mounting seat in a threaded mode, and a screw rod end of the adjusting nut can be in contact with the lower end face of a fixed iron core.
The invention discloses an electromagnetic power concrete quality detection resiliometer device, wherein a buffer spring is arranged at the upper end of a pull rod.
The invention has the technical effects that:
the electromagnetic power concrete quality detection resiliometer device disclosed by the invention completely overcomes the defect that the conventional resiliometer is used for pressing the firing rod by manpower, is high in operation labor intensity, can quickly complete the reset of the firing hammer in an electromagnetic power mode, realizes the continuous firing rod function, and is accurate in operation positioning and good in safety.
The electromagnetic dynamic concrete quality detection resiliometer device of the invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a front cross-sectional view of an electromagnetically-powered concrete mass-sensing resiliometer device of the present invention;
wherein: 1. a concrete structure; 2. a flick rod; 3. a buffer spring; 4. a housing; 5. a spring hammer; 6. a pull rod; 7. a handle; 8. a reset button; 9. an impact button; 10. a hook; 11. a movable iron core; 12. a coil; 13. fixing an iron core; 14. an adjusting nut; 15. a wiring port; 16. a lower cover; 17. a junction box; 18. a guide device; 19. a pressure spring; 20. measuring a sliding block; 21. a pointer shaft; 22. an automatic recorder; 23. a center guide rod; 24. striking the tension spring; 25. a clasp; 26. a cap is arranged; 27. a mounting base; 28. a central bore; 29. a spring piece; 30. a guide slide block; 31. a claw; 32. a boss; 33. and (3) a spring.
Detailed Description
As shown in fig. 1, the electromagnetic power concrete quality detection resiliometer device of the embodiment comprises a shell, an electromagnetic power device and a rebound indication mechanism which are arranged in the shell, and a handle 7 arranged outside the shell, wherein the shell comprises a shell 4, an upper cap 26 and a lower cover 16 which are connected to two ends of the shell 4, a rebound rod extending hole is arranged at the center of the upper end of the upper cap 26, and a wiring port 15 is arranged on the lower cover 16.
The rebound indicating value mechanism comprises a rebound mechanism and an indicating value mechanism, the rebound mechanism comprises a central guide rod 23, a pull rod 6, an elastic striking rod 2, an elastic striking hammer 5, a hook 10, a guide device 18, a pressure spring 19, an elastic striking tension spring 24, a clamping ring 25 and a guide sliding block 30, the central guide rod 23 is positioned at the central position in a shell, the upper end of the central guide rod 23 is inserted into the elastic striking rod 2, the section of the elastic striking end of the elastic striking rod 2 is arc-shaped, the upper end of the elastic striking rod 2 can extend out of the upper end face of the upper cap 26, the circumference of the elastic striking rod 2 is arranged on the inner wall of the upper cap 26 through the clamping ring 25, the lower end of the central guide rod 23 is fixedly connected with the guide sliding block 30, the guide sliding block 30 is in sliding fit with the pointer shaft 21, the lower end face of the guide sliding block 30 is provided with a spring mounting hole in the vertical direction, a spring 33 is arranged in the spring mounting hole, the middle part of the hook 10 is hinged on the side face of the guide sliding block 30, one end of the hook 10 is a hook clamping end, the other end of the hook 10 is an inserting end, the inserting end can be inserted into a spring and a spring mounting hole, the elastic hammer 5 is sleeved on the outer surface of the middle of the center guide rod 23 and can slide along the center guide rod 23, the lower end of the elastic hammer 5 is provided with a claw 31, the claw 31 can be clamped with the hook clamping end of the hook 10, the middle of the elastic hammer 5 is provided with a boss 32, the elastic tension spring 24 is sleeved outside the elastic rod 2, two ends of the elastic tension spring 24 are abutted to the clamping ring 25 and the boss 32 of the elastic hammer 5, the pressure spring 19 is sleeved outside the pull rod 6, two ends of the pressure spring 19 are respectively abutted to the guide sliding block 30 and the guide device 18, the pull rod 6 is arranged in the center guide rod 23 in a penetrating manner, the upper end of the pull rod 6 is fixedly connected with the elastic rod 2, the lower end of the pull rod 6 is fixedly connected to the movable iron core 11, and the upper end of the pull rod 6 is close to the buffer spring 3. The indicating mechanism comprises a spring piece 29, a measuring slide block 20 and a pointer shaft 21, wherein scales are arranged on the pointer shaft 21, the pointer shaft 21 penetrates through the middle of the measuring slide block 20, two ends of the pointer shaft 21 are fixed on the inner wall of the shell 4, the pointer shaft 21 and the center guide rod 23 are arranged in parallel, the measuring slide block 20 can slide along the pointer shaft 21, the spring piece 29 is obliquely fixed on the measuring slide block 20, and the boss 32 can push the spring piece 29.
The electromagnetic power device comprises a power supply, a coil 12, a mounting seat 27, a fixed iron core 13, a movable iron core 11 and an adjusting nut 14, wherein a central hole 28 is formed in the mounting seat 27, the coil 12 is symmetrically arranged on the mounting seat 27, the power supply supplies power to the coil 12, the fixed iron core 13 is fixedly connected to the lower end in the central hole 28 of the mounting seat 27 and is positioned in the middle of the coil 12, the adjusting nut 14 is in threaded connection with the central hole at the bottom end of the mounting seat 27, the screw rod end of the adjusting nut 14 can be in contact with the lower end face of the fixed iron core 13, the generated electromagnetic effect can be adjusted, a permanent magnet is arranged at the bottom of the movable iron core 11, the movable iron core 11 is positioned above the fixed iron core 13 in a base, the upper end of the movable iron core 11 is fixedly connected with a pull rod 6, and the electromagnetic effect is generated when the coil is electrified to attract the movable iron core 11.
The handle 7 is provided with a reset button 8 for controlling the movement of the electromagnetic power device and an impact button 9 for controlling the movement of the rebound mechanism. The reset button 8 is pressed, and the movable iron core 11 returns to the pre-suction position. The impact button 9 is pressed and the striking rod 2 and the striking hammer 5 return to the pre-strike position.
The indicating mechanism further comprises an automatic recorder 22, a visible window is arranged on the machine shell 4 and corresponding to the measuring slide block 20 and the pointer shaft 21, the automatic recorder 22 is arranged outside the visible window, a camera of the automatic recorder 22 is opposite to the measuring slide block 20 and the pointer shaft 21, a scale position picture on the pointer shaft 21 corresponding to the measuring slide block 20 is shot, and the automatic recorder 22 selects the existing equipment to transmit and store the shot picture.
The junction box 17 is arranged outside the mounting seat 27, the coil 12 is connected with a power supply through an electric wire, one end of the electric wire is arranged in the junction box 17, and the other end of the electric wire extends out of the junction opening 15 to be connected with the power supply.
Before use, the device should be zeroed, namely the hook clamping end of the hook 10 is clamped with the claw 31 of the spring hammer 5, and the scribing line of the measuring slide block 20 coincides with the zero scale mark on the pointer shaft 21. Specifically, the power is turned on to electrify the coil 12, the fixed iron core 13 is attracted to the movable iron core 11, the movable iron core 11 is fixedly connected with the pull rod 6, the movable iron core 11 drives the pull rod 6 to move towards the lower end of the device, the pull rod 6 is fixedly connected with the impact rod 2, the impact hammer 5 is sleeved outside the central guide rod 23, the impact rod 2 is retracted, the impact hammer 5 is clamped with the hook 10, namely, the pull rod drives the impact rod and the impact hammer to the test emission position when the movable iron core is attracted, and the impact hammer return is realized rapidly.
When the coil 12 is powered off, the movable iron core 11 is loosened, the movable iron core 11 drives the pull rod 6 to move reversely, namely, to move towards the upper end of the device, then the impact hammer 5 is unhooked from the hook 10 and impacts the impact rod 2 at a high speed, part of impact energy enables the concrete structure 1 to generate plastic deformation to be absorbed, and part of impact energy enables the concrete structure 1 to generate elastic deformation to react with the impact hammer 5 through the impact rod 2 to enable the impact hammer 5 to rebound, when the impact rod 2 and the impact hammer 5 rebound after first collision, the boss 32 of the impact hammer 5 pushes the spring piece 29 to bring the measuring slide 20 to a certain position, at this time, a rebound value can be read from a position corresponding to a scale of the measuring slide 20 and a scale of the pointer shaft 21, and a rebound value can also be read from a scale position picture on the pointer shaft 21 corresponding to the measuring slide 20 shot by a camera of the automatic recorder 22.
According to the electromagnetic power concrete quality detection resiliometer device, the reset of the elastic hammer is rapidly completed in an electromagnetic power mode, the continuous firing of the elastic hammer rod can be realized, the labor intensity of workers is reduced instead of completely relying on manpower, the instrument operation positioning is accurate, and the safety is good.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (7)
1. An electromagnetic power concrete quality detects resiliometer device, its characterized in that: comprises a shell, an electromagnetic power device and a rebound indicating value mechanism which are arranged in the shell, a handle (7) which is arranged outside the shell, wherein the shell comprises a shell (4), an upper cap (26) and a lower cap (16) which are connected with two ends of the shell (4), the rebound indicating value mechanism comprises a rebound mechanism and an indicating value mechanism,
the rebound mechanism comprises a central guide rod (23), a pull rod (6), a spring impact rod (2), a spring impact hammer (5), a hook (10), a guide device (18), a pressure spring (19), a spring impact tension spring (24), a clamp ring (25) and a guide sliding block (30), wherein the central guide rod (23) is positioned at the central position in a shell, the upper end of the central guide rod (23) is inserted into the spring impact rod (2), the upper end part of the spring impact rod (2) can extend out of the upper end surface of an upper cap (26), the central position of the upper cap (26) is provided with a spring impact rod extending hole, the circumference of the spring impact rod (2) is arranged on the inner wall of the upper cap (26) through the clamp ring (25), the lower end of the central guide rod (23) is fixedly connected with the guide sliding block (30), the guide sliding block (30) is in sliding fit with a pointer shaft (21), the lower end surface of the guide sliding block (30) is provided with a spring mounting hole in the vertical direction, the middle part of the hook (10) is hinged to the side surface of the guide sliding block (30), one end of the other end of the spring impact rod (10) is a clamping end, the other end of the hook is a clamping end is inserted into the spring impact rod is inserted into the middle part (5) and can be sleeved with the guide rod (23) along the central connecting hole (5), the claw (31) can be clamped with the hook (10), a boss (32) is formed in the middle of the elastic hammer (5), the elastic hammer tension spring (24) is sleeved outside the elastic hammer rod (2), two ends of the elastic hammer tension spring (24) are abutted against the boss (32) of the clamping ring (25) and the elastic hammer (5), the pressure spring (19) is sleeved outside the pull rod (6), two ends of the pressure spring (19) are respectively abutted against the guide sliding block (30) and the guide device (18), the pull rod (6) is arranged in the center guide rod (23) in a penetrating manner, the upper end of the pull rod (6) is fixedly connected with the elastic hammer rod (2), the lower end of the pull rod (6) is fixedly connected with the movable iron core (11),
the indicating value mechanism comprises a spring piece (29), a measuring slide block (20) and a pointer shaft (21), wherein scales are arranged on the pointer shaft (21), the pointer shaft (21) is arranged in the middle of the measuring slide block (20) in a penetrating mode, two ends of the pointer shaft are fixed on the inner wall of the shell (4), the pointer shaft (21) and the center guide rod (23) are arranged in parallel, the measuring slide block (20) can slide along the pointer shaft (21), the spring piece (29) is obliquely fixed on the measuring slide block (20), the boss (32) can push the spring piece (29),
the handle (7) is provided with a reset button (8) for controlling the electromagnetic power device to move and an impact button (9) for controlling the rebound mechanism to move,
the electromagnetic power device comprises a power supply, a coil (12), a mounting seat (27), a fixed iron core (13) and a movable iron core (11), wherein a central hole (28) is formed in the mounting seat (27), the coil (12) is symmetrically arranged on the mounting seat (27), the power supply supplies power to the coil (12), the fixed iron core (13) is fixedly connected to the lower end in the central hole (28) of the mounting seat (27) and is positioned in the middle of the coil (12), a permanent magnet is arranged at the bottom of the movable iron core (11), the movable iron core (11) is positioned above the fixed iron core (13) in a base, the upper end of the movable iron core (11) is fixedly connected with a pull rod (6), and an electromagnetic effect is generated when the coil is electrified to attract the movable iron core (11).
2. The electromagnetic dynamic concrete quality detection resiliometer device of claim 1, wherein: the indicating value mechanism further comprises an automatic recorder (22), a visual window is arranged on the machine shell (4) and corresponding to the measuring sliding block (20) and the pointer shaft (21), the automatic recorder (22) is arranged outside the visual window, and a camera of the automatic recorder (22) is opposite to the measuring sliding block (20) and the pointer shaft (21).
3. The electromagnetic dynamic concrete quality detection resiliometer device of claim 2, wherein: the lower cover (16) is provided with a wiring port (15).
4. An electromagnetic dynamic concrete quality detection resiliometer device according to claim 3, wherein: a junction box (17) is arranged outside the mounting seat (27).
5. The electromagnetic dynamic concrete quality detection resiliometer device of claim 4, wherein: the section of the flicking end of the flicking rod (2) is arc-shaped.
6. The electromagnetic dynamic concrete quality detection resiliometer device of claim 5, wherein: the electromagnetic power device further comprises an adjusting nut (14), the adjusting nut (14) is connected to the bottom end center hole of the mounting seat (27) in a threaded mode, and the screw end of the adjusting nut (14) can be in contact with the lower end face of the fixed iron core (13).
7. The electromagnetic dynamic concrete quality detection resiliometer device of claim 6, wherein: the pull rod (6) is provided with a buffer spring (3) near the upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111047043.1A CN113670754B (en) | 2021-09-06 | 2021-09-06 | Electromagnetic power concrete quality detection resiliometer device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111047043.1A CN113670754B (en) | 2021-09-06 | 2021-09-06 | Electromagnetic power concrete quality detection resiliometer device |
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| Publication Number | Publication Date |
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| CN113670754A CN113670754A (en) | 2021-11-19 |
| CN113670754B true CN113670754B (en) | 2023-08-04 |
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| CN202111047043.1A Active CN113670754B (en) | 2021-09-06 | 2021-09-06 | Electromagnetic power concrete quality detection resiliometer device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102504936B1 (en) * | 2022-11-29 | 2023-03-02 | 주식회사 금오시설안전 | Concrete compressive strength tester that can share measured values in real time |
| KR102546874B1 (en) * | 2023-03-14 | 2023-06-23 | 주식회사 금오시설안전 | Concrete compressive strength tester using orthogonal direction precision impact force |
| CN116429615B (en) * | 2023-04-11 | 2024-03-29 | 广州大学 | Resiliometer for detecting strength of underwater concrete |
| CN116559002B (en) * | 2023-06-27 | 2023-11-07 | 慈溪市诚正建设工程检测有限公司 | Concrete strength detection device |
| CN116625862B (en) * | 2023-07-20 | 2023-09-26 | 长垣市建筑工程质量安全服务站 | Concrete member hardness detection device |
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| US7284414B2 (en) * | 2004-12-16 | 2007-10-23 | Shaoming Wu | Hardness testing device |
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| US4034603A (en) * | 1974-11-07 | 1977-07-12 | Proceq Sa | Method of an apparatus for testing the hardness of materials |
| KR20090017770A (en) * | 2007-08-16 | 2009-02-19 | (사)한국도로교통협회 | The face hitting rebound test machine for nondestructive test of concrete compressive strength |
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