CN113670754A - Electromagnetic power concrete quality detection resiliometer device - Google Patents
Electromagnetic power concrete quality detection resiliometer device Download PDFInfo
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- CN113670754A CN113670754A CN202111047043.1A CN202111047043A CN113670754A CN 113670754 A CN113670754 A CN 113670754A CN 202111047043 A CN202111047043 A CN 202111047043A CN 113670754 A CN113670754 A CN 113670754A
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- iron core
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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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- 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 indicating mechanism which are arranged in the shell, and a handle which is arranged outside the shell, wherein the rebound indicating mechanism comprises a rebound mechanism and a value indicating 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 an electromagnetic effect to attract the movable iron core when being electrified, a pull rod is inserted in a central guide rod and is connected with an elastic striking rod, and the elastic striking rod and the elastic striking hammer are driven to a test launching position when the pull rod is attracted by the movable iron core, so that the rapid return is realized. The electromagnetic power concrete quality detection resiliometer device quickly finishes the return of the elastic hammer in an electromagnetic power mode, can realize the function of continuously launching the elastic rod, does not depend on manpower completely, reduces the labor intensity of workers, and has accurate operation and positioning of instruments and good safety.
Description
Technical Field
The invention relates to a concrete structure quality nondestructive testing technology, in particular to an electromagnetic dynamic concrete quality testing resiliometer device.
Background
The concrete resiliometer is a detection device, is suitable for detecting the strength of general building elements, bridges and various concrete elements (plates, beams, columns and bridges), and has an impact function as a main technical indicator; the rigidity of the tension spring is flicked; a percussion hammer stroke; the maximum static friction force of the pointer system and the steel drilling rate are averaged.
The working principle of the concrete resiliometer is that a spring drives a spring hammer and the spring hammer drives a pointer to rebound and indicates the rebound distance through the restoring force of instantaneous elastic deformation generated by the spring striking of a spring rod on the surface of concrete. The ratio of the rebound distance to the distance between the impact hammer and the impact rod before impact is calculated by percentage, and the compression strength of the concrete is estimated by taking the rebound value as one of indexes related to the compression strength of the concrete.
In the whole process of operating the resiliometer, attention needs to be paid to the posture of holding the resiliometer, and the middle part of the resiliometer is held by one hand to play a role in strengthening; the other hand presses the tail part of the instrument to apply pressure to the instrument and also plays a role in assisting in righting; because the axis of the resiliometer is ensured to be vertical to the concrete test surface all the time, the force is uniformly and slowly applied, the resiliometer is centered and aligned to the test surface, the slow propelling and the fast reading are realized, the striking rod is completely pressed and launched manually, 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 defect that the existing resiliometer is large in operation labor intensity because the resiliometer is pressed and launched by manpower, quickly complete the return of a striking hammer in an electromagnetic power mode, realize the function of continuously launching the striking rod, and ensure accurate operation and positioning and good safety of the instrument.
The invention relates to an electromagnetic power concrete quality detection resiliometer device, which comprises a shell, an electromagnetic power device and a rebound indicating mechanism which are arranged in the shell, and a handle which is arranged outside the shell, wherein the shell comprises a shell, an upper cap and a lower cover which are connected with two ends of the shell, the rebound indicating mechanism comprises a rebound mechanism and an indicating mechanism, the rebound mechanism comprises a central guide rod, a pull rod, a striking hammer, a hook, a guiding device, a pressure spring, a striking tension spring, a snap ring and a guiding slide block, the central guide rod is positioned in the central position in the shell, the upper end of the central guide rod is inserted into the striking rod, the upper end of the striking rod can extend out of the upper end surface of the upper cap, the circumferential direction of the striking rod is arranged on the inner wall of the upper cap through the snap ring, the lower end of the central guide rod is fixedly connected with the guiding slide block, the guiding slide block is in sliding fit with a pointer shaft, the lower end surface of the guiding slide block is provided with a spring mounting hole in the vertical direction, the spring is arranged in the spring mounting hole, the middle part of the hook is hinged on the side surface of the guide sliding block, one end of the hook is a hook clamping end, the other end of the hook is an inserting end, the inserting end can be inserted into the spring and the spring mounting hole, the elastic hammer is sleeved on the outer surface of the middle part of the center guide rod and can slide along the center guide rod, the lower end of the elastic hammer is provided with a clamping jaw which can be clamped with the hook, the middle part of the elastic hammer is provided with a boss, the elastic tension spring is sleeved outside the elastic hammer, two ends of the elastic tension spring are abutted against the clamping ring and the boss of the elastic hammer, the compression spring is sleeved outside the pull rod, two ends of the compression spring are respectively abutted against the guide sliding block and the guide device, the pull rod is arranged in the center guide rod in a penetrating way, the upper end of the pull rod is fixedly connected with the elastic hammer, the lower end of the pull rod is fixedly connected with the movable iron core, the indicating mechanism comprises a spring piece, a measuring sliding block and a pointer shaft, scales are arranged on the pointer shaft, the pointer shaft penetrates through the middle of the measuring sliding block, two ends of the pointer shaft are fixed on the inner wall of the casing, the pointer shaft and the central guide rod are arranged in parallel, the measuring sliding block can slide along the pointer shaft, the spring piece is obliquely fixed on the measuring sliding block, the boss can push the spring piece, the handle is provided with a reset button used for controlling the movement of the electromagnetic power device and an impact button used for controlling the movement of the rebounding mechanism, the electromagnetic power device comprises a power supply, a coil, a mounting seat, a fixed iron core and a movable iron core, the mounting seat is provided with a central hole, the coil is symmetrically arranged on the mounting seat, the power supply supplies power to the coil, the fixed iron core is fixedly connected to the lower end in the central hole of the mounting seat and positioned in the middle of the coil, the bottom of the movable iron core is provided with a permanent magnet, the movable iron core is positioned above the fixed iron core in the base, and the upper end of the movable iron core is fixedly connected with the pull rod, when the fixed iron core coil is electrified, an electromagnetic effect is generated to attract the movable iron core.
The invention relates to an electromagnetic power concrete quality detection resiliometer device, wherein a value indicating mechanism further comprises an automatic recorder, a visual window is arranged on a shell at a position corresponding to a measuring slide block and a pointer shaft, the automatic recorder is arranged outside the visual window, and a camera of the automatic recorder is over against the measuring slide block and the pointer shaft.
The invention relates to an electromagnetic power concrete quality detection resiliometer device, wherein an elastic striking rod extending hole is formed in the central position of the upper end of an upper cap.
The invention relates to an electromagnetic power concrete quality detection resiliometer device, wherein a wiring port is arranged on a lower cover.
The invention relates to an electromagnetic power concrete quality detection resiliometer device, wherein a junction box is arranged outside a mounting seat.
The invention relates to an electromagnetic power concrete quality detection resiliometer device, wherein the section of a striking end of a striking 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 in threaded connection with a central hole in the bottom end of a mounting seat, and the screw 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, close to a pull rod.
The invention has the technical effects that:
the electromagnetic power concrete quality detection resiliometer device completely overcomes the defect that the existing resiliometer is large in operation labor intensity because the resiliometer is pressed and launched by manpower, quickly completes the reset of the elastic hammer in an electromagnetic power mode, realizes the function of continuously launching the elastic hammer, and is accurate in operation positioning and good in safety.
The invention further discloses an electromagnetic dynamic concrete quality detection resiliometer device by combining the attached drawings.
Drawings
FIG. 1 is a front cross-sectional view of an electromagnetic power concrete quality testing resiliometer apparatus of the present invention;
wherein: 1. a concrete structure; 2. a tapping rod; 3. a buffer spring; 4. a housing; 5. a percussion hammer; 6. a pull rod; 7. a handle; 8. a reset button; 9. a shock button; 10. hooking; 11. a movable iron core; 12. a coil; 13. fixing the iron core; 14. adjusting the nut; 15. a wiring port; 16. a lower cover; 17. a junction box; 18. a guide device; 19. a pressure spring; 20. a measuring slide block; 21. a pointer shaft; 22. an automatic recorder; 23. a center guide bar; 24. the tension spring is flicked; 25. a snap ring; 26. putting a cap on; 27. a mounting seat; 28. a central bore; 29. a spring plate; 30. a guide slider; 31. a claw; 32. a boss; 33. a spring.
Detailed Description
As shown in fig. 1, the electromagnetic power concrete quality detection resiliometer apparatus of the present embodiment includes a housing, an electromagnetic power device and a rebound indicating mechanism installed in the housing, and a handle 7 installed outside the housing, wherein the housing includes a casing 4, an upper cap 26 and a lower cover 16 connected to two ends of the casing 4, an ejection rod extending hole is provided at the center of the upper end of the upper cap 26, and a wiring port 15 is provided on the lower cover 16.
The resilience indicating mechanism comprises a resilience mechanism and a value indicating mechanism, the resilience mechanism comprises a central guide rod 23, a pull rod 6, an impact rod 2, an impact hammer 5, a hook 10, a guide device 18, a pressure spring 19, an impact tension spring 24, a snap ring 25 and a guide sliding block 30, the central guide rod 23 is positioned in the central position in the shell, the upper end of the central guide rod 23 is inserted into the impact rod 2, the section of the impact end of the impact rod 2 is arc-shaped, the upper end part of the impact rod 2 can extend out of the upper end surface of an upper cap 26, the impact rod 2 is circumferentially arranged on the inner wall of the upper cap 26 through the snap 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, a spring mounting hole in the vertical direction is formed in the lower end surface of the guide sliding block 30, a spring 33 is arranged in the spring mounting hole, the middle of the hook 10 is hinged to the side surface of the guide sliding block 30, one end of the hook 10 is a clamping hook end, The other end is a splicing end, the splicing end can be inserted into the spring and spring mounting hole, the elastic hammer 5 is sleeved on the outer surface of the middle part of the central guide rod 23 and can slide along the central guide rod 23, the lower end of the elastic hammer 5 is provided with a clamping jaw 31, the clamping jaw 31 can be clamped with the clamping end of the hook 10, a boss 32 is formed in the middle part of the elastic hammer 5, the elastic tension spring 24 is sleeved outside the elastic rod 2, two ends of the elastic tension spring 24 are abutted against 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 abutted against the guide sliding block 30 and the guide device 18 respectively, the pull rod 6 penetrates through the central guide rod 23, 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 buffer spring 3 is arranged on the pull rod 6 close to the upper end. The indicating mechanism comprises a spring piece 29, a measuring slide block 20 and a pointer shaft 21, 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 machine shell 4, the pointer shaft 21 and the central 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 positioned in the middle of the coil 12, the adjusting nut 14 is in threaded connection with the central hole in the bottom end of the mounting seat 27, the screw end of the adjusting nut 14 can be in contact with the lower end face of the fixed iron core 13, the size of 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 of the fixed iron core 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 position before suction. Pressing the impact button 9 returns the tapping rod 2 and the tapping hammer 5 to the pre-tapping position.
The indicating mechanism further comprises an automatic recorder 22, a visual window is arranged on the machine shell 4 and in the position corresponding to the measuring sliding block 20 and the pointer shaft 21, the automatic recorder 22 is arranged outside the visual window, a camera of the automatic recorder 22 is over against the measuring sliding block 20 and the pointer shaft 21, a scale position picture on the pointer shaft 21 corresponding to the measuring sliding block 20 is shot, and the automatic recorder 22 selects existing equipment to transmit and store the shot picture.
And a 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 wiring port 15 to be connected with the power supply.
Before use, the device should return to zero, namely, the hook clamping end of the hook 10 is clamped with the claw 31 of the elastic hammer 5, and the scribed line of the measuring slide block 20 is superposed with the zero scale mark on the pointer shaft 21. Specifically, when the coil 12 is powered on, the fixed iron core 13 attracts 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 striking rod 2, the striking hammer 5 is sleeved outside the central guide rod 23, the striking rod 2 retracts, the striking hammer 5 is clamped with the hook 10, namely, the pull rod drives the striking rod and the striking hammer to a test launching position when the movable iron core attracts, and the striking hammer return is quickly realized.
When the coil 12 is powered off, the fixed iron core 13 releases the movable iron core 11, the movable iron core 11 drives the pull rod 6 to move in the reverse direction, namely, the pull rod moves towards the upper end of the device, the elastic hammer 5 is unhooked from the hook 10 and impacts the elastic rod 2 at a high speed, part of impact energy causes the concrete structure 1 to generate plastic deformation and be absorbed, part of impact energy causes the concrete structure 1 to generate elastic deformation and acts on the elastic hammer 5 through the elastic rod 2 to rebound the elastic hammer 5, when the elastic rod 2 rebounds after colliding with the elastic hammer 5 for the first time, the lug boss 32 of the elastic hammer 5 pushes the spring piece 29 to bring the measuring slide block 20 to a certain position, and at the moment, the rebound value can be read from the position corresponding to the scale of the pointer shaft 21 of the measuring slide block 20, and can also be read from the picture of the scale position on the pointer shaft 21 corresponding to the measuring slide block 20 shot by the camera of the automatic recorder 22.
The electromagnetic power concrete quality detection resiliometer device quickly finishes the return of the elastic hammer in an electromagnetic power mode, can realize the function of continuously launching the elastic rod, does not depend on manpower completely, reduces the labor intensity of workers, and has accurate operation and positioning of instruments and good safety.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides an electromagnetism power concrete quality testing resiliometer device which characterized in that: comprises a shell, an electromagnetic power device and a rebound indicating mechanism which are arranged in the shell, and a handle (7) which is arranged outside the shell, wherein the shell comprises a shell (4), an upper cap (26) and a lower cover (16) which are connected with the two ends of the shell (4), the rebound indicating mechanism comprises a rebound mechanism and an indicating mechanism,
the rebounding mechanism comprises a center 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), wherein the center guide rod (23) is positioned in the shell, the upper end of the center guide rod (23) is inserted into the elastic striking rod (2), the upper end part of the elastic striking rod (2) can extend out of the upper end surface of an upper cap (26), the elastic striking rod (2) is circumferentially arranged on the inner wall of the upper cap (26) through the clamping ring (25), the lower end of the center 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), a spring mounting hole in the vertical direction is formed in the lower end surface of the guide sliding block (30), a spring is arranged in the spring mounting hole, the middle part of the hook (10) is hinged to the side surface 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 part of the central guide rod (23) and can slide along the central guide rod (23), the lower end of the elastic hammer (5) is provided with a clamping jaw (31), the clamping jaw (31) can be clamped with the hook (10), the middle part of the elastic hammer (5) is provided with a boss (32), the elastic tension spring (24) is sleeved outside the elastic hammer rod (2), two ends of the elastic tension spring (24) are abutted against 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 against the guide slide block (30) and the guide device (18), the pull rod (6) is penetrated in the central guide rod (23), and the upper end of the pull rod (6) is fixedly connected with the elastic hammer (2), the lower end of the pull rod (6) is fixedly connected to the movable iron core (11),
the indicating mechanism comprises a spring piece (29), a measuring sliding block (20) and a pointer shaft (21), scales are arranged on the pointer shaft (21), the pointer shaft (21) penetrates through the middle of the measuring sliding block (20) and two ends of the pointer shaft are fixed on the inner wall of the machine shell (4), the pointer shaft (21) and the central guide rod (23) are arranged in parallel, the measuring sliding block (20) can slide along the pointer shaft (21), the spring piece (29) is obliquely fixed on the measuring sliding block (20), and the boss (32) can push the spring piece (29),
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 are arranged on the handle (7),
electromagnetic power device includes power, coil (12), mount pad (27), fixed iron core (13), movable iron core (11), centre bore (28) have been seted up in mount pad (27), coil (12) symmetry is adorned on mount pad (27), the power is coil (12) power supply, and lower extreme in the centre bore (28) of mount pad (27) and be located coil (12) centre of fixed iron core (13) fixed connection, movable iron core (11) bottom has permanent magnet, movable iron core (11) are located the top of base internal fixation iron core (13), the upper end and pull rod (6) fixed connection of movable iron core (11), produce electromagnetic effect and with movable iron core (11) actuation when fixed iron core coil circular telegram.
2. The electromagnetic power concrete quality detection resiliometer apparatus according to claim 1, wherein: the indicating mechanism further comprises an automatic recorder (22), a visible window is arranged on the machine shell (4) and corresponds to the measuring sliding block (20) and the pointer shaft (21), the automatic recorder (22) is arranged outside the visible window, and a camera of the automatic recorder (22) is over against the measuring sliding block (20) and the pointer shaft (21).
3. The electromagnetic power concrete quality detection resiliometer apparatus according to claim 2, wherein: an elastic striking rod extending hole is formed in the center of the upper end of the upper cap (26).
4. The electromagnetic power concrete quality detection resiliometer apparatus according to claim 3, wherein: and the lower cover (16) is provided with a wiring port (15).
5. The electromagnetic power concrete quality detection resiliometer apparatus according to claim 4, wherein: and a junction box (17) is arranged outside the mounting seat (27).
6. The electromagnetic power concrete quality detection resiliometer apparatus according to claim 5, wherein: the section of the striking end of the striking rod (2) is arc-shaped.
7. The electromagnetic power concrete quality detection resiliometer apparatus according to claim 6, wherein: the electromagnetic power device further comprises an adjusting nut (14), the adjusting nut (14) is in threaded connection with a center hole in the bottom end of the mounting seat (27), and the screw end of the adjusting nut (14) can be in contact with the lower end face of the fixed iron core (13).
8. The electromagnetic power concrete quality detection resiliometer apparatus according to claim 7, wherein: and a buffer spring (3) is arranged at the upper end of the pull rod (6).
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| CN202111047043.1A CN113670754B (en) | 2021-09-06 | 2021-09-06 | Electromagnetic power concrete quality detection resiliometer device |
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| CN202111047043.1A CN113670754B (en) | 2021-09-06 | 2021-09-06 | Electromagnetic power concrete quality detection resiliometer device |
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| CN113670754A true CN113670754A (en) | 2021-11-19 |
| CN113670754B CN113670754B (en) | 2023-08-04 |
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| 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 |
| CN116429615A (en) * | 2023-04-11 | 2023-07-14 | 广州大学 | Resiliometer for detecting strength of underwater concrete |
| CN116559002A (en) * | 2023-06-27 | 2023-08-08 | 慈溪市诚正建设工程检测有限公司 | Concrete strength detection device |
| CN116625862A (en) * | 2023-07-20 | 2023-08-22 | 长垣市建筑工程质量安全服务站 | Concrete member hardness detection device |
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| CN113670754B (en) | 2023-08-04 |
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