CN216560092U - Cement-based cementing material and concrete impact resistance testing device - Google Patents
Cement-based cementing material and concrete impact resistance testing device Download PDFInfo
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- CN216560092U CN216560092U CN202122876577.7U CN202122876577U CN216560092U CN 216560092 U CN216560092 U CN 216560092U CN 202122876577 U CN202122876577 U CN 202122876577U CN 216560092 U CN216560092 U CN 216560092U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a cement-based cementing material and concrete impact resistance testing device, which comprises a base, wherein the base is of a disc-shaped structure; the bearing plate is of a disc-shaped structure and is fixedly connected with the base through a plurality of support columns arranged in a surrounding mode; the impact part is fixedly arranged on the upper end face of the bearing plate and comprises a vertical cylinder, a round hole matched with the vertical cylinder is formed in the bearing plate, a moving disc is arranged in the vertical cylinder in a matched and sliding mode, an impact ball body is fixedly connected to the lower side of the moving disc through a vertical rod, a strip-shaped opening is formed in the side wall of the vertical cylinder, a control strip is fixedly connected to the moving disc, and the control strip penetrates through the strip-shaped opening and extends to the outside; the control part is arranged on one side of the impact part, and the control strip is in transmission connection with the control part. The utility model can accurately control the impact frequency of the impact hammer, the obtained test data is accurate, and meanwhile, the device has the function of automatic braking and stopping, and the impact ball can be prevented from colliding with a test piece by one-time impact.
Description
Technical Field
The utility model relates to the field of concrete cementing materials related to mineral powder, in particular to a cement-based cementing material and a concrete impact resistance testing device.
Background
At present, a drop hammer impact test is widely applied to concrete detection, and can quickly and effectively evaluate the impact resistance of concrete, however, the traditional impact test equipment needs manual positioning, and the impact height is difficult to accurately control and keep unchanged each time; when the impact hammer impacts the force transmission ball, the force transmission ball can fall to the bottom plate to generate secondary irregular impact and the like, and the impact frequency is difficult to control.
The patent document with the application number of CN201320047805.2 in China discloses a device for testing the shock resistance of a cement-based cementing material and concrete, which comprises a shock device and a transmission device; the impact device comprises a transmission rod, a transmission rod fixing bracket, a transmission ball and a test block fixing device for fixing a test block; the test block fixing device is positioned below the transmission rod fixing support, a hole is formed in the middle of the upper surface cover plate of the test block fixing device, and a force transmission ball baffle is arranged at the hole; the force transmission ball is positioned in a hole on the cover plate of the test block fixing device (the force transmission ball is placed on the test block); the upper part of the transmission rod fixing support is provided with a transmission rod sleeve which is positioned right above the hole on the cover plate of the test block fixing device; the bottom of the transmission rod is provided with an impact hammer, the upper end of the transmission rod is inserted into the transmission rod sleeve, and the impact hammer is positioned right above the force transmission ball and is in contact with the force transmission ball; the transmission rod is connected with a transmission device which enables the transmission rod to do up-and-down reciprocating motion.
The device has the following defects: although the device is manual through the mechanical transmission belt body, thereby solve above-mentioned problem, the actual drive structure is realized by the drive wheel, according to the drive wheel radius, drive wheel nose bar length and the impact hammer free fall height relation that the device figure given, if the scope of free fall height is too big, need the drive wheel of great radius, the device is relatively poor to the problem solution of secondary impact simultaneously.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a cement-based cementing material and a concrete impact resistance testing device.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a cement-based cementitious material and concrete impact resistance testing device, comprising:
the base is arranged into a disc-shaped structure;
the bearing plate is of a disc-shaped structure and is fixedly connected with the base through a plurality of support columns arranged in a surrounding mode;
the impact part is fixedly arranged on the upper end face of the bearing plate and comprises a vertical cylinder, a round hole matched with the vertical cylinder is formed in the bearing plate, a moving disc is arranged in the vertical cylinder in a matched and sliding mode, an impact ball body is fixedly connected to the lower side of the moving disc through a vertical rod, a strip-shaped opening is formed in the side wall of the vertical cylinder, a control strip is fixedly connected to the moving disc, and the control strip penetrates through the strip-shaped opening and extends to the outside;
the control part is arranged on one side of the impact part, and the control strip is in transmission connection with the control part.
Preferably, the control part includes that two symmetries set up two risers of accepting the board up end, one of them the terminal surface longitudinal symmetry of riser rotates and is provided with two drive sprocket, the fixed driving motor that is provided with on the riser, driving motor's output run through the riser and with the coaxial fixed connection of one of them drive sprocket, two drive sprocket passes through chain drive and connects, two be provided with the carriage release lever between the riser, two slide bars of fixedly connected with on the carriage release lever, another be provided with two respectively with two on the riser the waist hole type fluting that the slide bar matches, carriage release lever and chain fixed connection, the carriage release lever corresponds with control strip position.
Preferably, be provided with the through-hole in the carriage release lever, it runs through the driving lever to slide in the through-hole, fixedly connected with limits its spacing spring that removes between driving lever and the carriage release lever, the one end fixedly connected with lug of impact portion is kept away from to the driving lever, still fixed being provided with on the riser carries out spacing slat to the lug, spacing slat lower extreme is the form of bending, spacing slat upper end sets up to flexible form.
Preferably, the upper end face of the base is fixedly provided with a placing plate corresponding to the vertical cylinder, the placing plate is provided with a vibration sensor, one side of the lower end of the vertical cylinder is fixedly provided with an electromagnet, and the electromagnet is electrically connected with the vibration sensor.
Preferably, the base up end is provided with the mounting groove that corresponds with shock sensor, shock sensor is fixed to be set up in the mounting groove and its contact surface with the mounting groove is provided with the buffer layer, shock sensor's input is through leading the shake spring with place the board and offset.
Preferably, the placing plate is made of rigid hard metal materials, and the upper surface of the placing plate is provided with a rough surface.
Compared with the prior art, the utility model has the beneficial effects that: the device uses mechanical braking to replace manual braking, can accurately control the impact frequency of the impact ball, obtains accurate test data, has a large adjustable impact height range, can control the impact frequency according to requirements, controls the falling height of the impact ball by adjusting the length of the limiting strip plate, does not need manual operation in the process of carrying out multiple impact tests, and is simple in integral operation; simultaneously when assaulting spheroid device test piece, the electro-magnet can be opened in vibrations, directly adsorbs the braking to assaulting the spheroid, avoids assaulting the impact spheroid that leads to and experimental many times collision test piece to the accuracy of test data has been guaranteed.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of another embodiment of the present invention.
Fig. 3 is a schematic internal perspective view of another embodiment of the present invention.
In the figure: 1 base, 2 bearing plates, 3 supporting columns, 4 control parts, 21 placing plates, 22 vibration sensors, 23 electromagnets, 24 shock-conducting springs, 31 vertical cylinders, 32 moving disks, 33 impact balls, 34 control bars, 41 vertical plates, 41 transmission chain wheels, 43 driving motors, 44 moving rods, 45 deflector rods, 46 limiting springs, 47 bumps and 48 limiting strip plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 3, a cement-based cementitious material and concrete impact resistance testing apparatus includes:
the base 1 is of a disc-shaped structure, and the base 1 mainly plays a role in supporting the whole device;
the bearing plate 2 is constructed into a disc-shaped structure, the bearing plate 2 is fixedly connected with the base 1 through a plurality of support columns arranged around the bearing plate 2, a space is arranged between the base 1 and the bearing plate 2 and used for placing a concrete test piece, a placing plate 21 is fixedly arranged on the upper end surface of the base 1 corresponding to the vertical cylinder 31, the placing plate 21 is made of rigid hard metal materials, the upper surface of the placing plate 21 is arranged into a rough surface, the concrete test piece is placed on the placing plate 21, the rough surface can effectively avoid the concrete test piece from shaking, a vibration sensor 22 is arranged on the placing plate 21, an installation groove corresponding to the vibration sensor 22 is arranged on the upper end surface of the base 1, the vibration sensor 22 is fixedly arranged in the installation groove, a buffer layer is arranged on the contact surface of the vibration sensor 22 and the installation groove, the input end of the vibration sensor 22 is abutted against the placing plate 21 through a vibration guide spring 24, an electromagnet 23 is fixedly arranged on one side of the lower end of the vertical cylinder 31, the electromagnet 23 is electrically connected with the vibration sensor 22, when the placing plate 21 is impacted, an electric signal is generated and transmitted to the electromagnet 23, so that the electromagnet 23 is turned on to work, an adsorption force is generated, the impact ball 33 which is impacted is adsorbed and braked, the secondary impact problem of a single experiment is effectively avoided, and meanwhile, the braked and braked impact ball 33 has a limiting effect on a concrete test piece during impact, so that the concrete test piece is placed on the placing plate 21 without clamping and fixing a structure, the electromagnet 23 is set to be timed, and the power is automatically cut off after a short time;
In order to realize the impact action of the impact ball 33 controlled by mechanical transmission, a control part 4 is needed, the control part 4 is arranged at one side of the impact part 3, a control strip 34 is in transmission connection with the control part 4, the control part 4 comprises two vertical plates 41 symmetrically arranged at the upper end surface of the bearing plate 2, two transmission chain wheels 42 are arranged at the end surface of one vertical plate 41 in a vertically symmetrical and rotating manner, a driving motor 43 is fixedly arranged on the vertical plate 41, the output end of the driving motor 43 penetrates through the vertical plate 41 and is coaxially and fixedly connected with one transmission chain wheel 42, the two transmission chain wheels 42 are in transmission connection through a chain, the driving motor 43 adopts the prior art, when the driving motor 43 works, one transmission chain wheel 42 can be driven to rotate, so as to realize the transmission action of the chain, a moving rod 44 is arranged between the two vertical plates 41, two sliding rods are fixedly connected on the moving rod 44, two waist-hole type slots respectively matched with the two sliding rods are arranged on the other vertical plate 41, the movable rod 44 is fixedly connected with the chain, the position of the movable rod 44 corresponds to that of the control bar 34, when the chain is in a transmission process, the movable rod 44 can move along the waist-hole-shaped groove, a through hole is arranged in the movable rod 44, a shifting rod 45 is arranged in the through hole in a sliding and penetrating manner, a limiting spring 46 for limiting the movement of the shifting rod 45 is fixedly connected between the shifting rod 45 and the movable rod 44, a convex block 47 is fixedly connected to one end of the shifting rod 45, which is far away from the impact part 3, a limiting strip plate 48 for limiting the convex block 47 is also fixedly arranged on the vertical plate 41, the lower end of the limiting strip plate 48 is bent, the lower end of the limiting strip plate 48 is fixed on the vertical plate 41, the limiting strip plate 48 has a limiting effect on the shifting rod 45, when the shifting rod 48 limits the position of the shifting rod 45, the control bar 34 can be shifted by the shifting rod 45, the contact surface of the shifting rod 45 and the control bar 34 is polished and smoothed, lubricants such as lubricating oil can be smeared, so that the shifting rod can be smoothly drawn out to enable the punching ball 33 to fall down, the upper end of the limit slat 48 is set to be telescopic, the upper end of the limit slat 48 is set to be telescopic rod structure and is equipped with limit structures such as locking bolts, and the height of the limit structure is the specific falling height of the impact ball 33.
The working steps of the cement-based cementing material and concrete impact resistance testing device are as follows: placing the concrete sample on the placing plate 21, wherein the impact ball 33 abuts against the concrete sample, adjusting the overall length of the limit lath 48 according to the requirement, thereby determining the falling height of the impact ball 33, then turning on the driving motor 43, the driving motor 43 driving one of the driving sprockets 42 to rotate, realizing the driving action of the chain, when the chain drives, the chain driving the moving rod 44 to move along the two waist-hole-shaped slots, when the moving rod 44 rotates to the position of the lower side of the vertical plate 41 facing the impact part 3 and then continuously rises, the bump 47 connected with the shift lever 45 is acted by the limit lath 48, so that the shift lever 45 extends towards the impact part 3, then driving the control strip 34 to move upwards in the rising process, thereby driving the moving disc 32, further driving the impact ball 33 to move upwards, then the shift lever 45 moves to the position higher than the limit lath 48, the limiting effect of the limiting strip plate 48 is lost, under the action of the limiting spring 46, the deflector rod 45 resets to remove the limitation on the control bar 34, the impact ball 33 falls down to impact the concrete test piece, the impact instant vibration sensor 22 senses vibration, a signal is transmitted to the electromagnet 23, and the electromagnet 23 brakes the impact ball 33.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a cement base cementitious material and concrete shock resistance testing arrangement which characterized in that includes:
the base (1), the said base (1) sets up as a disc-shaped structure;
the bearing plate (2) is of a disc-shaped structure, and the bearing plate (2) is fixedly connected with the base (1) through a plurality of support columns arranged in a surrounding mode;
the impact part (3) is fixedly arranged on the upper end face of the bearing plate (2), the impact part (3) comprises a vertical cylinder (31), a round hole matched with the vertical cylinder (31) is formed in the bearing plate (2), a moving disc (32) is arranged in the vertical cylinder (31) in a matching and sliding mode, an impact ball (33) is fixedly connected to the lower side of the moving disc (32) through the vertical rod, a strip-shaped opening is formed in the side wall of the vertical cylinder (31), a control strip (34) is fixedly connected to the moving disc (32), and the control strip (34) penetrates through the strip-shaped opening and extends to the outside;
the control part (4), the control part (4) sets up in impact portion (3) one side, control strip (34) and control part (4) transmission are connected.
2. The cement-based cementitious material and concrete impact resistance testing device according to claim 1, wherein the control portion (4) comprises two vertical plates (41) symmetrically arranged on the upper end surface of the bearing plate (2), wherein two transmission sprockets (42) are symmetrically and rotationally arranged on the end surface of one of the vertical plates (41), a driving motor (43) is fixedly arranged on the vertical plate (41), the output end of the driving motor (43) penetrates through the vertical plate (41) and is coaxially and fixedly connected with one of the transmission sprockets (42), the two transmission sprockets (42) are connected through chain transmission, a moving rod (44) is arranged between the two vertical plates (41), two sliding rods are fixedly connected to the moving rod (44), and two waist-hole type slots respectively matched with the two sliding rods are arranged on the other vertical plate (41), the moving rod (44) is fixedly connected with the chain, and the moving rod (44) corresponds to the control bar (34) in position.
3. The cement-based cementitious material and concrete impact resistance testing device according to claim 2, wherein a through hole is formed in the moving rod (44), a deflector rod (45) is slidably arranged in the through hole in a penetrating manner, a limiting spring (46) for limiting the movement of the deflector rod (45) is fixedly connected between the deflector rod (45) and the moving rod (44), a convex block (47) is fixedly connected to one end of the deflector rod (45) far away from the impact part (3), a limiting slat (48) for limiting the convex block (47) is further fixedly arranged on the vertical plate (41), the lower end of the limiting slat (48) is bent, and the upper end of the limiting slat (48) is arranged in a telescopic manner.
4. The cement-based cementitious material and concrete impact resistance testing device according to claim 1, wherein a placing plate (21) is fixedly arranged on the upper end surface of the base (1) corresponding to the vertical cylinder (31), a vibration sensor (22) is arranged on the placing plate (21), an electromagnet (23) is fixedly arranged on one side of the lower end of the vertical cylinder (31), and the electromagnet (23) is electrically connected with the vibration sensor (22).
5. The cement-based cementitious material and concrete impact resistance testing device according to claim 4, wherein the upper end surface of the base (1) is provided with a mounting groove corresponding to the vibration sensor (22), the vibration sensor (22) is fixedly arranged in the mounting groove, a buffer layer is arranged on the contact surface of the vibration sensor (22) and the mounting groove, and the input end of the vibration sensor (22) is abutted against the placing plate (21) through a vibration guide spring (24).
6. The cement-based cementitious material and concrete impact resistance testing device as claimed in claim 4, wherein said placing plate (21) is made of rigid hard metal material, and the upper surface of said placing plate (21) is provided with a rough surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122876577.7U CN216560092U (en) | 2021-11-23 | 2021-11-23 | Cement-based cementing material and concrete impact resistance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122876577.7U CN216560092U (en) | 2021-11-23 | 2021-11-23 | Cement-based cementing material and concrete impact resistance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216560092U true CN216560092U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122876577.7U Active CN216560092U (en) | 2021-11-23 | 2021-11-23 | Cement-based cementing material and concrete impact resistance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216560092U (en) |
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2021
- 2021-11-23 CN CN202122876577.7U patent/CN216560092U/en active Active
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