阅读说明：本技术 电磁动力砂浆回弹仪装置 (Electromagnetic power mortar resiliometer device ) 是由 孙树楠 王培培 徐德伟 张宏宝 于 2021-09-06 设计创作，主要内容包括：本发明提供了一种电磁动力砂浆回弹仪装置。本发明电磁动力砂浆回弹仪装置,壳体、装在壳体内的回弹机体和示值系统,还包括外接在壳体上的电磁动力体,包括电磁动力体,电磁动力体包括电源、固定铁芯、线圈、活动铁芯,电源为线圈供电,固定铁芯固定连接于中心通孔内且位于线圈中间,活动铁芯左端部具有永久磁铁,活动铁芯位于固定铁芯的右侧,拉杆穿设在中心导杆内且拉杆右端与弹击杆固定连接,拉杆左端与活动铁芯固定连接,线圈通、断电,可使固定铁芯吸合或松开活动铁芯,实现弹击锤、弹击杆回位和连续发射弹击杆,即通过电磁动力方式快速完成了弹击锤回位,降低了工人的操作强度。(The invention provides an electromagnetic power mortar resiliometer device. The invention relates to an electromagnetic power mortar resiliometer device, which comprises a shell, a resiliometer body and a value indicating system, wherein the resiliometer body and the value indicating system are arranged in the shell, the electromagnetic power body is externally connected on the shell and comprises an electromagnetic power body, the electromagnetic power body comprises a power supply, a fixed iron core, a coil and a movable iron core, the power supply supplies power to the coil, the fixed iron core is fixedly connected in a central through hole and positioned in the middle of the coil, the left end part of the movable iron core is provided with a permanent magnet, the movable iron core is positioned on the right side of the fixed iron core, a pull rod is arranged in a central guide rod in a penetrating mode, the right end of the pull rod is fixedly connected with an elastic rod, the left end of the pull rod is fixedly connected with the movable iron core, the coil is powered on and powered off, the fixed iron core can be attracted or loosened, the elastic hammer, the rebound and the elastic rod can be continuously launched, namely the rebound of the elastic hammer can be quickly completed in an electromagnetic power mode, and the operation intensity of workers can be reduced.)

1. The utility model provides an electromagnetism power mortar resiliometer device, includes the casing, adorns resilience organism and the indicating value system in the casing, its characterized in that: the electromagnetic power body is externally connected to the shell, the shell comprises a cover cap (15) and a resiliometer shell (16), the cover cap (15) and the resiliometer shell (16) are in threaded connection to form the shell, the electromagnetic power body comprises a power source, a mounting base (27), a fixed iron core (2), a coil (3) and a movable iron core (4), the mounting base (27) is fixed at the left end of the resiliometer shell (16), a central through hole (28) is formed in the mounting base (27), the power source supplies power to the coil (3), the coil (3) is symmetrically arranged on the mounting base (27), the fixed iron core (2) is fixedly connected to the central through hole (28) and is positioned in the middle of the coil (3), the left end part of the movable iron core (4) is provided with a permanent magnet, the movable iron core (4) is positioned on the right side of the fixed iron core (2), and the coil (3) is powered on, the fixed iron core (2) generates an electromagnetic effect to suck the movable iron core (4), the rebounding machine body comprises a pull rod (5), a compression spring (6), a hollow center guide rod (10), a buffer spring (11), an impacting rod (12), a snap ring (13), a first spring seat (17), an impacting tension spring (18), an impacting hammer (19), a hook (20), a second spring seat (23) and a guide sliding block (30), the center guide rod (10) is positioned in the shell at the center position, the right end of the center guide rod is inserted into the impacting rod (12), the right end of the impacting rod (12) can extend out of the right end face of a cover cap (15), the circumference of the impacting rod (12) is arranged on the inner wall of the shell through the snap ring (13), the left end of the center guide rod (10) is fixedly connected with the guide sliding block (30), the circumference of the guide sliding block (30) is in sliding fit with a pointer shaft (9), the left end face of the guide sliding block (30) is provided with a spring mounting hole, the axis of which is parallel to the axis of the center guide rod (10), the spring is arranged in the spring mounting hole, the middle part of the hook (20) is hinged on the side surface of the guide sliding block (30), one end of the hook (20) is a clamping end, the other end of the hook is a plugging end, the plugging end can be inserted into the spring and spring mounting hole, the elastic hammer (19) is sleeved on the outer surface of the middle part of the center guide rod (10) and can slide along the center guide rod (10), the left end of the elastic hammer (19) is provided with a clamping jaw (31), the clamping jaw (31) can be clamped with the clamping end of the hook (20), the middle part of the elastic hammer (19) is provided with a frustum (32), the elastic tension spring (18) is sleeved on the outer surface of the center guide rod (10), the first spring seat (17) is sleeved on the outer surface of the left end part of the elastic rod (12), the two ends of the elastic tension spring (18) are abutted against the first spring seat (17) and the elastic hammer (19), the compression spring (6) is sleeved outside the pull rod (5), the two ends of the compression spring (6) are abutted against the guide sliding block (30) and the second spring seat (23) respectively, the pull rod (5) is arranged in the central guide rod (10) in a penetrating way, the right end of the pull rod (5) is fixedly connected with the bouncing rod (12), the left end of the pull rod (5) is fixedly connected to the movable iron core (4), the indicating system comprises a spring leaf (29), a measuring slide block (7) and a pointer shaft (9), scales are arranged on the pointer shaft (9), the pointer shaft (9) is arranged in the middle of the measuring slide block (7) in a penetrating way, two ends of the pointer shaft are fixed on the inner wall of the middle part of the resiliometer shell (16), the pointer shaft (9) is parallel to the central guide rod (10), the spring piece (29) is obliquely fixed on the measuring slide block (20), the frustum (32) can push the spring piece (29) to drive the measuring slide block (7) to slide along the pointer shaft (9), and a reset button (22) for controlling the movement of the electromagnetic power body and an impact button (21) for controlling the movement of the rebounding machine body are arranged on the side wall of the cover cap (15).

2. The electromagnetic power mortar rebound apparatus according to claim 1, wherein: the indicating system further comprises an automatic recorder (8), a visible window is formed in the resiliometer shell (16), the automatic recorder (8) is arranged at the visible window, and a camera of the automatic recorder (8) is over against the measuring slide block (7) and the pointer shaft (9).

3. The electromagnetic power mortar rebound apparatus according to claim 2, wherein: and an elastic striking rod extending hole is formed in the center of the right end of the cover cap (15).

4. The electromagnetic power mortar rebound apparatus according to claim 3, wherein: the section of the striking end of the striking rod (12) is a plane.

5. The electromagnetic power mortar rebound apparatus according to claim 4, wherein: and a buffer spring (11) is arranged at the right end of the pull rod (5).

6. The electromagnetic power mortar rebound apparatus according to claim 5, wherein: the electromagnetic power body further comprises an adjusting nut (1), the adjusting nut (1) is in threaded connection with the left end of the mounting base (27), and the end portion of a screw rod of the adjusting nut (1) can be in contact with the left end face of the fixed iron core (2).

7. The electromagnetic power mortar rebound apparatus according to claim 6, wherein: and the mounting base (27) is provided with a power switch (24) and a binding post (25).

Technical Field

The invention relates to a masonry structure quality nondestructive testing technology, in particular to an electromagnetic power mortar resiliometer device.

Background

The mortar resiliometer is a detection device, and is suitable for nondestructive testing of the compressive strength of masonry mortar in sintered common brick masonry of common buildings in industry and civil use. This is the fastest, simplest and most economical test method to obtain masonry mortar quality and strength.

The construction principle of the mortar resiliometer is that a regression equation and a curve of the mortar strength, a rebound value and a carbonization depth value are established by utilizing the correlation between the mortar surface hardness and the compressive strength, and the regression equation and the curve are used for evaluating the mortar strength.

The mortar resiliometer mainly comprises a bounce system, a indicating value system, an instrument shell part and the like: the elastic striking rod in the elastic striking system mainly transmits the kinetic energy of the elastic striking hammer to a tested mortar test piece, and transmits the rebounding energy after impact to the elastic striking hammer to enable the elastic striking hammer to rebound for a certain distance, the elastic striking tension spring mainly stores the energy and endows the elastic striking hammer, and the elastic striking hammer is not only a carrying piece of the energy, but also a connecting element between the elastic striking system and the indicating system. The rebound value indicated by the pointer slide block in the indicating value system is the distance for driving the elastic hammer to move when rebounding after impacting the elastic rod.

The indicating system is fixed on the instrument shell and keeps the relative position and the motion relation with the impact system. The zero return of the indicating system pointer is realized by driving a guide flange through a compression spring so as to lead the impact system to return to a non-impact state and simultaneously bring the impact system to a set position.

The adjusting bolt on the tail cap of the instrument is used to control the stroke (unhooking point) and the tripping point of the striking hammer, so that once the height of the adjusting bolt is determined, it is not allowed to be changed freely.

The mortar resiliometer can obtain a reliable test effect only by correct use and operation, and the specific operation is as follows:

1. in the test process, the axis of the resiliometer is always vertical to the surface of mortar, the elastic striking rod of the resiliometer is propped against the surface of the mortar, the resiliometer is lightly pressed to enable the button to loosen the elastic striking rod to extend out of the instrument shell, and the hook is hung with the elastic striking hammer.

2. And (3) uniformly applying pressure to the mortar surface by the extended bouncing rod, adjusting the verticality of the resiliometer to the test surface when unhooking is about to be achieved, slightly applying pressure to the test surface to enable the bouncing hammer to unhook for bouncing, repeating the actions, continuously bouncing three times on a test point without displacement, reading and recording a certain rebound value marked on the scale for the third time, pressing a button if the conditions are unfavorable for reading the rebound value, locking the machine core, moving the resiliometer away from the mortar surface of the wall body, and reading the rebound value.

3. The tapping rod is extended again to return to the normal state for the next point of testing.

4. The operation should be repeated according to the above requirements every time of the test.

As mentioned above, the existing mortar rebound instrument completely depends on a worker to manually launch the elastic striking rod and manually return the elastic striking hammer, so that the operation intensity of the worker is high, and time and labor are wasted.

Disclosure of Invention

The invention aims to provide an electromagnetic power mortar resiliometer device which can quickly finish the return of an elastic hammer in an electromagnetic power mode, is time-saving and labor-saving and reduces the operation intensity of workers.

The invention relates to an electromagnetic power mortar resiliometer device, which comprises a shell, a resiliometer body and a value indicating system, wherein the resiliometer body and the value indicating system are arranged in the shell, the electromagnetic power body is externally connected onto the shell, the shell comprises a cover cap and a resiliometer shell, the cover cap and the resiliometer shell are in threaded connection to form the shell, the electromagnetic power body comprises a power supply, an installation base, a fixed iron core, a coil and a movable iron core, the installation base is fixed at the left end of the resiliometer shell, the installation base is provided with a central through hole, the power supply supplies power to the coil, the coil is symmetrically arranged on the installation base, the fixed iron core is fixedly connected into the central through hole and positioned in the middle of the coil, the left end part of the movable iron core is provided with a permanent magnet, the movable iron core is positioned at the right side of the fixed iron core, when the coil is electrified, the fixed iron core generates an electromagnetic effect to attract the movable iron core, the resiliometer body comprises a pull rod and a compression spring, The central guide rod is positioned in the center of the shell, the right end of the central guide rod is inserted into the elastic striking rod, the right end part of the elastic striking rod can extend out of the right end surface of the cap, the circumferential direction of the elastic striking rod is arranged on the inner wall of the shell through the snap ring, the left end of the central guide rod is fixedly connected with the guide sliding block, the circumferential direction of the guide sliding block is in sliding fit with the pointer shaft, the left end surface of the guide sliding block is provided with a spring mounting hole with the axis parallel to that of the central guide rod, a 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 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, and the elastic striking hammer is sleeved on the outer surface of the middle part of the central guide rod and can slide along the central guide rod, the left end of the elastic hammer is provided with a clamping jaw which can be clamped with the clamping end of the hook, the middle part of the elastic hammer is provided with a frustum, an elastic tension spring is sleeved on the outer surface of a central guide rod, a spring seat is sleeved on the outer surface of the left end part of the elastic rod, two ends of the elastic tension spring are abutted against a spring seat I and the elastic hammer, a compression spring is sleeved outside the pull rod, two ends of the compression spring are respectively abutted against a guide sliding block and a spring seat II, the pull rod is penetrated in the central guide rod, the right end of the pull rod is fixedly connected with the elastic rod, the left end of the pull rod is fixedly connected on a movable iron core, the indicating system comprises a spring piece, a measuring sliding block and a pointer shaft, scales are arranged on the pointer shaft, the pointer shaft is penetrated in the middle of the measuring sliding block, two ends of the pointer shaft are fixed on the inner wall of the middle part of a rebound instrument shell, the pointer shaft is arranged in parallel with the central guide rod, and the spring piece is obliquely fixed on the measuring sliding block, the frustum can promote the spring leaf and drive the measurement slider and slide along the pointer axle, be provided with the impact button that is used for controlling the reset button of electromagnetism power body motion and is used for controlling resilience organism motion on the lateral wall of block.

The electromagnetic power mortar resiliometer device comprises a resiliometer, wherein the resiliometer shell is provided with a visible window, the automatic recorder is arranged at the visible window, and a camera of the automatic recorder is over against a measuring slide block and a pointer shaft.

The invention relates to an electromagnetic power mortar resiliometer device, wherein an elastic striking rod extending hole is formed in the center of the right end of a cover cap.

The electromagnetic power mortar resiliometer device is characterized in that the section of the bouncing end of the bouncing rod is a plane.

The invention relates to an electromagnetic power mortar resiliometer device, wherein a buffer spring is arranged at the position, close to the right end, of a pull rod.

The electromagnetic power mortar resiliometer device comprises an electromagnetic power body, wherein the electromagnetic power body further comprises an adjusting nut, the adjusting nut is in threaded connection with the left end of the mounting base, and the end part of a screw rod of the adjusting nut can be in contact with the left end face of the fixed iron core.

The invention relates to an electromagnetic power mortar resiliometer device, wherein a power switch and a binding post are arranged on an installation base.

Compared with the prior art, the electromagnetic power mortar resiliometer device of the invention is characterized in that: including the electromagnetism power body, the electromagnetism power body includes power, fixed iron core, coil, movable iron core, the power is the coil power supply, and fixed iron core fixed connection just is located in the middle of the coil in central through-hole, movable iron core left end portion has permanent magnet, movable iron core is located fixed iron core's right side, and the pull rod is worn to establish in central guide arm and pull rod right-hand member and striking rod fixed connection, pull rod left end and movable iron core fixed connection, and the coil is expert, the outage, can make fixed iron core actuation or loosen movable iron core, realizes striking hammer, striking rod return and continuous emission striking rod, has accomplished striking hammer return fast promptly through the electromagnetism power mode, has reduced workman's manipulation strength.

The electromagnetic power mortar resiliometer device of the present invention will be further explained with reference to the accompanying drawings.

Drawings

FIG. 1 is a front cross-sectional view of an electromagnetic power mortar rebound apparatus of the present invention;

in the figure: 1. adjusting the nut; 2. fixing the iron core; 3. a coil; 4. a movable iron core; 5. a pull rod; 6. a compression spring; 7. a measuring slide block; 8. an automatic recorder; 9. a pointer shaft; 10. a center guide bar; 11. a buffer spring; 12. a tapping rod; 13. a snap ring; 14. a test body; 15. capping; 16. a resiliometer housing; 17. a spring seat; 18. the tension spring is flicked; 19. a percussion hammer; 20. hooking; 21. a shock button; 22. a reset button; 23. a spring seat; 24. a power switch; 25. a binding post; 26. a countersunk hole; 27. mounting a base; 28. a central through hole; 29. a spring plate; 30. a guide slider; 31. a claw; 32. a frustum.

Detailed Description

As shown in fig. 1, the electromagnetic power mortar resiliometer apparatus of the embodiment includes a housing, a resiliometer body and a value indicating system installed in the housing, and an electromagnetic power body externally connected to the housing, where the housing includes a cap 15 and a resiliometer housing 16, the cap 15 and the resiliometer housing 16 are in threaded connection to form the housing, the electromagnetic power body includes a power supply, mounting base 27, fixed iron core 2, coil 3, movable iron core 4, mounting base 27 is fixed in the left end of resiliometer shell 16, central through hole 28 has been seted up to mounting base 27, the power is the power supply of coil 3, 3 symmetrical adorns of coil are on mounting base 27, fixed iron core 2 fixed connection just is located in the middle of coil 3 in central through hole 28, movable iron core 4 left end portion has permanent magnet, movable iron core 4 is located fixed iron core 2's right side, when coil 3 circular telegram, fixed iron core 2 produces the electromagnetic effect and attracts movable iron core 4.

As shown in fig. 1, the rebounding body includes a pull rod 5, a compression spring 6, a hollow center guide rod 10, a buffer spring 11, a bouncing rod 12, a snap ring 13, a first spring seat 17, a bouncing tension spring 18, a bouncing hammer 19, a hook 20, a second spring seat 23, and a guide slider 30, the pull rod 5 and the center guide rod 10 are coaxially arranged, the right end of the bouncing rod 12 is located at the bouncing end, the section of the bouncing end of the bouncing rod 12 is a plane, the bouncing rod 12 is provided with a countersunk hole 26 from the left end surface to the right along the axis thereof, the center guide rod 10 is located at the center position in the casing, the right end thereof is inserted into the countersunk hole 26 of the bouncing rod 12, the center position of the right end of the cap 15 is provided with a bouncing rod extending hole, the right end of the bouncing rod 12 can extend out of the right end surface of the cap 15, i.e. the right end of the bouncing rod 12 extends out of the bouncing rod, the circumference of the bouncing rod 12 is placed on the inner wall of the casing through the snap ring 13, the left end of the center guide slider 10 is fixedly connected with the guide slider 30, the circumference of the guide sliding block 30 is in sliding fit with the pointer shaft 9, the left end face of the guide sliding block 30 is provided with a spring mounting hole with an axis parallel to the axis of the central guide rod 10, a spring is arranged in the spring mounting hole, the middle part of the hook 20 is hinged on the side face of the guide sliding block 30, one end of the hook 20 is a clamping end, the other end is a plugging end, the plugging end can be inserted into the spring and spring mounting hole, the elastic striking hammer 19 is sleeved on the outer surface of the middle part of the central guide rod 10 and can slide along the central guide rod 10, the left end of the elastic striking hammer 19 is provided with a clamping jaw 31, the clamping jaw 31 can be clamped with the clamping end of the hook 20, the middle part of the elastic striking hammer 19 is provided with a frustum 32, the elastic striking tension spring 18 is sleeved on the outer surface of the central guide rod 10, the spring seat I17 is sleeved on the outer surface of the left end part of the elastic striking rod 12, two ends of the elastic tension spring 18 are abutted against the spring seat I17 and the elastic striking hammer 19, the compression spring 6 is sleeved outside the pull rod 5, two ends of the compression spring 6 are abutted against the guide sliding block 30 and the spring seat II 23 respectively, the pull rod 5 is arranged in the center guide rod 10 in a penetrating mode, the right end of the pull rod 5 is fixedly connected with the striking rod 12, the pull rod 5 is provided with a buffer spring 11 close to the right end, the left end of the pull rod 5 is fixedly connected onto the movable iron core 4, the indicating system comprises a spring leaf 29, a measuring slider 7 and a pointer shaft 9, scales are arranged on the pointer shaft 9, the pointer shaft 9 is arranged in the middle of the measuring slider 7 in a penetrating mode, two ends of the pointer shaft are fixed on the inner wall of the middle of the resiliometer shell 16, the pointer shaft 9 is arranged in parallel with the center guide rod 10, the spring leaf 29 is obliquely fixed on the measuring slider 20, the frustum 32 can push the spring leaf 29 to drive the measuring slider 7 to slide along the pointer shaft 9, and a reset button 22 and an impact button 21 are arranged on the side wall of the cap 15 and used for controlling the movement of the electromagnetic power body. The reset button 22 is pressed and the movable iron core 4 returns to the position before the attraction. Pressing the impact button 21 returns the striking rod 12 and the hammer 19 to the pre-strike position.

As shown in fig. 1, the indicating system further includes an automatic recorder 8, a visible window is opened on the resiliometer shell 16, the automatic recorder 8 is installed at the visible window, a camera of the automatic recorder 8 is over against the measuring slider 7 and the pointer shaft 9, a scale position picture on the pointer shaft 9 corresponding to the measuring slider 7 is shot, and the automatic recorder 8 selects existing equipment to transmit and store the shot picture.

As shown in fig. 1, the electromagnetic power body further includes an adjusting nut 1, the adjusting nut 1 is screwed to the left end of the mounting base 27, and the screw end of the adjusting nut 1 can contact with the left end face of the fixed iron core 2.

And a junction box 17 is arranged outside the mounting base 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.

The mounting base 27 is provided with a power switch 24 and a binding post 25, the binding post 25 is connected with a wire for connecting with a power supply, the coil supplies power, the power switch is connected with the wire between the coil and the power supply, and when the power switch is turned on, a passage is formed, so that the coil can be supplied with power.

Before use, the device is reset to zero, namely, the hook clamping end of the hook 20 is clamped with the claw 31 of the elastic hammer 19, and the scribed line of the measuring slide block 7 is superposed with the zero scale mark on the pointer shaft 9. Specifically, when the coil 3 is powered on, the fixed iron core 2 attracts the movable iron core 4, the movable iron core 4 is fixedly connected with the pull rod 5, the movable iron core 4 drives the pull rod 5 to move towards the left end of the device, the pull rod 5 is fixedly connected with the striking rod 12, the striking hammer 19 is sleeved outside the central guide rod 10, the striking rod 12 retracts, the striking hammer 19 is clamped with the hook 20, 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 return of the striking hammer is quickly realized.

When the coil 3 is powered off, the fixed iron core 2 releases the movable iron core 4, the movable iron core 4 drives the pull rod 5 to move in the reverse direction, namely, the pull rod moves towards the right end of the device, the elastic hammer 19 is unhooked from the hook 20 and impacts the elastic hammer 12 at a high speed, part of the impact energy causes the test body 14 to generate plastic deformation and be absorbed, part of the impact energy causes the test body 14 to generate elastic deformation and reacts on the elastic hammer 19 through the elastic hammer 2 to cause the elastic hammer 19 to rebound, when the elastic hammer 12 rebounds after first collision with the elastic hammer 19, the cone table 32 of the elastic hammer 19 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 measuring slide block 7 and the pointer shaft 9, and also can be read from the picture of the scale position on the pointer shaft 9 corresponding to the measuring slide block 7 shot by the camera of the automatic recorder 8.

According to the electromagnetic power mortar resiliometer device, the rebound of the elastic hammer is completed in an electromagnetic power mode, the operation is simple and rapid, time and labor are saved, the operation intensity of workers is reduced, the function of continuously launching the elastic rod can be realized, the operation positioning is accurate, and the safety is high.

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.