CN112067423A - Concrete impact resistance test device - Google Patents
Concrete impact resistance test device Download PDFInfo
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- CN112067423A CN112067423A CN202010852860.3A CN202010852860A CN112067423A CN 112067423 A CN112067423 A CN 112067423A CN 202010852860 A CN202010852860 A CN 202010852860A CN 112067423 A CN112067423 A CN 112067423A
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- 239000004567 concrete Substances 0.000 title claims abstract description 43
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000000670 limiting effect Effects 0.000 claims abstract description 25
- 238000009863 impact test Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 31
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 244000309464 bull Species 0.000 claims description 5
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 230000035939 shock Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000703 anti-shock Effects 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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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
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of concrete impact tests, and particularly relates to a concrete impact resistance test device which comprises an impact device shell, wherein a through groove is formed in the top end of the impact device shell, a rotating door is rotatably connected to the side wall of the front end of the impact device shell, through holes are formed in the upper ends of the left side and the right side of the impact device shell, limiting rod groups are fixedly connected to the two sides of the bottom end of the inner wall of the impact device shell, a supporting block is fixedly connected to the center of the bottom surface of the inner wall of the impact device shell, an air cylinder is fixedly connected to the upper end of the supporting block, a connecting block is fixedly connected to the upper end of the air cylinder, and a. According to the concrete block impact device, the rotating door is arranged and made of the glass door plate, the rotating door can rotate for 90 degrees around the rotating rod, so that an experimenter can conveniently place concrete blocks required by a test on the placing table, and the limiting plate on the outer side of the lower end of the door plate prevents the door plate from deflecting towards the inner side of the shell of the impact device, so that the limiting function is achieved.
Description
Technical Field
The invention belongs to the technical field of concrete impact tests, and particularly relates to a concrete impact test device.
Background
The common concrete is artificial stone which is prepared by taking cement as a main cementing material, adding water, sand, stones and chemical additives and mineral admixtures if necessary, mixing the materials according to a proper proportion, uniformly stirring, densely molding, curing and hardening. Concrete is mainly divided into two stages and states: plastic state before setting and hardening, namely fresh concrete or concrete mixture; hardened, i.e. hardened concrete or concrete. The concrete strength grade is divided into a cubic compressive strength standard value, and the Chinese common concrete strength grade is divided into 14 grades: c15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75 and C80. The strength of a material refers to the ability to resist an applied load, and it is desirable that the greater the strength of the material, the better. Brittle fracture (fracture) is a fatal weak point of a material, so that research on brittle fracture of the material is increasing.
Regarding the basic source of brittle fracture of a material, it is widely believed that many fine cracks or defects always exist in an actual material, and a stress concentration phenomenon occurs in the vicinity of the cracks or defects under an external force, and when the stress reaches a certain degree, the cracks start to propagate to cause fracture. The fracture is not the result of the two crystal parts being simultaneously broken along the whole cross section, but the crack is expanded, the common method of the impact resistance of the organic material is to add an inorganic body into the material to form a composite material, and the inorganic powder or the whisker or the ply has great contribution to the improvement of the impact resistance.
Traditional concrete impact resistance test utilizes the heavy object free fall or strikes on the concrete with certain acceleration usually, and causes damage or cracked experiment to the concrete piece, and the iron ball that traditional experiment used certain quality usually tests, but because traditional anti-shock device only can test at fixed height, can't carry out the impact test of multiple height, leads to the unicity of test result.
To this end, we propose a concrete impact resistance test device to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems and provide a concrete impact resistance test device.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a concrete shock resistance test device, includes the impact device shell, the top of impact device shell is opened has the groove that runs through, it is connected with the turnstile to rotate on the front end lateral wall of impact device shell, open the left and right sides upper end of impact device shell has the through-hole, the bottom both sides fixedly connected with stop lever group of the inner wall of impact device shell, the fixedly connected with supporting shoe of center department of the inner wall bottom surface of impact device shell, the upper end fixedly connected with cylinder of supporting shoe, the upper end fixedly connected with connecting block of cylinder, the upper end fixedly connected with fixing base of connecting block.
In foretell concrete shock resistance test device, the junction of revolving door and impact device shell rotates and is connected with the bull stick, revolving door fixed connection is on the bull stick, the revolving door comprises door plant and limiting plate, the top fixed connection of door plant is in the bottom of bull stick, limiting plate fixed connection is in the outside of door plant.
In foretell concrete shock resistance test device, the inner wall upper end fixedly connected with backup pad of percussion device shell, the spout has been seted up in the middle of the inside of backup pad, the right side sliding connection of spout has the slip rack, fixedly connected with pulley spare respectively on the upper and lower both ends cell wall on spout right side, the equal sliding connection in upper and lower both ends of slip rack is on pulley spare.
In the concrete impact test device, the transmission rod is connected to the left side of the inside of the sliding groove in a penetrating mode, the lower end of the transmission rod is fixedly connected with a gear, the right end of the gear is connected to the left end of the sliding rack in a meshed mode, and the left end of the sliding rack is connected into the through hole in a penetrating mode.
In foretell concrete shock resistance test device, the upper end fixedly connected with worm wheel of transfer line, the worm wheel rotates and is connected with the worm, worm fixedly connected with motor, the bottom surface fixed connection of motor is in the upper end of backup pad, the left surface fixed connection of motor is in the inner wall side of percussion device shell.
In the concrete impact test device, a bearing seat is fixedly connected to the connection part of the transmission rod and the sliding groove, the bearing seat is fixedly connected to the upper end of the transmission rod connected with the supporting plate and the bottom surface of the transmission rod connected with the supporting plate respectively, a fixing block is fixedly connected to the top end of the transmission rod, and the transmission rod is connected to the bearing seat in a penetrating mode.
In foretell concrete shock resistance test device, the stop lever group comprises base, connecting rod, stopper and spring, the bottom surface fixed connection of base is on the inner wall bottom surface of impact device shell, the left side fixed connection of base is on the left side inner wall of impact device shell, connecting rod fixed connection is in the upper end of base, stopper fixed connection is on the top of connecting rod, the lower extreme at the connecting rod is established to the spring housing, the bottom fixed connection of spring is in the upper end of base, the upper end fixed connection of spring is at the lower extreme of fixing base.
In foretell concrete shock resistance test device, the connecting rod is perforated connection at the both ends of fixing base, the upper end middle part fixedly connected with of fixing base places the platform, fixing base sliding connection is on the connecting rod.
Compared with the prior art, this concrete shock resistance test device's advantage lies in:
1. according to the invention, through the arrangement of the through groove, an experimenter can conveniently place the impact ball required by the experiment, the impact ball can be quickly placed, the operation steps of the experimenter are reduced, and time and labor are saved.
2. The impact device is provided with the sliding racks, the sliding racks on the two sides of the shell of the impact device slide inwards and are abutted against each other, and the grooves are formed above the inner side ports of the sliding racks, so that impact balls are more stably placed.
3. According to the invention, the worm gear is arranged, the rotation of the worm gear drives the transmission rod to rotate, and the rotation of the gear connected with the transmission rod is indirectly driven, so that the gear can rotate in the chute and drive the sliding rack to move in the horizontal direction.
4. According to the invention, the sliding part is arranged, the sliding part is fixed on the upper and lower groove walls in the sliding groove, and the sliding rack slides stably in the sliding groove through the sliding wheel at the lower end of the sliding part and the sliding rack.
5. According to the concrete block impact device, the rotating door is arranged and made of the glass door plate, the rotating door can rotate for 90 degrees around the rotating rod, so that an experimenter can conveniently place concrete blocks required by a test on the placing table, and the limiting plate on the outer side of the lower end of the door plate prevents the door plate from deflecting towards the inner side of the shell of the impact device, so that the limiting function is achieved.
6. According to the invention, through the arrangement of the through hole, the sliding rack can move in the horizontal direction under the driving of the gear, namely when the sliding racks at two ends move outwards, the sliding racks are prevented from being blocked due to the arrangement of the through hole, and the lower end of the port at the inner side of the sliding rack is provided with the protruding block, so that the sliding rack is prevented from sliding out of the impact device shell.
7. The limiting rod group is arranged, the spring is used for damping and buffering the fixed seat fixed at the upper end of the spring, the internal structure of the device is prevented from being damaged, the impact test effect is not interfered, and the limiting block arranged at the upper end of the spring has a limiting effect on the movement of the fixed seat.
8. According to the invention, the air cylinder is arranged, so that the connecting block pushes the fixing seat fixedly connected with the connecting block to move upwards or downwards under the driving of the air cylinder, the test height of the device can be changed along with the height of the fixing seat, and the purpose of multiple impact tests is realized.
Drawings
FIG. 1 is a schematic structural diagram of a concrete impact resistance test device provided by the invention;
FIG. 2 is a side view of a concrete impact resistance test apparatus provided in the present invention;
FIG. 3 is an enlarged view of the structure of part A of FIG. 1;
fig. 4 is an enlarged schematic view of a part B of fig. 2.
In the figure, 1 impact device shell, 11 through grooves, 12 through holes, 13 supporting blocks, 2 rotating doors, 21 rotating rods, 22 door plates, 23 limiting plates, 3 limiting rod groups, 31 bases, 32 connecting rods, 33 limiting blocks, 34 springs, 4 air cylinders, 41 connecting blocks, 5 fixing seats, 51 placing tables, 6 supporting plates, 61 sliding grooves, 611 pulley pieces, 62 sliding racks, 7 transmission rods, 71 gears, 72 worm gears, 73 worms, 74 motors, 75 bearing seats and 76 fixing blocks.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-4, a concrete impact resistance test device comprises an impact device housing 1, wherein the upper end of the inner wall of the impact device housing 1 is fixedly connected with a support plate 6, the front side and the rear side of the support plate 6 are fixedly connected to the front inner wall and the rear inner wall of the impact device housing 1, the number of the support plates 6 is two, the two support plates 6 are not connected, a sliding groove 61 is formed in the middle of the inside of the support plate 6, the sliding groove 61 is communicated in the front and rear direction, the size of the sliding groove 61 is smaller than that of the cross section of the support plate 6, a transmission rod 7 is connected with the left side of the inside of the sliding groove 61 in a penetrating manner, the upper end of the transmission rod 7 is fixedly connected with a worm wheel 72, the worm wheel 72 is rotatably connected with a worm 73, the worm 73 is fixedly connected with a motor 74, the connecting part of the transmission rod 7 and the sliding groove 61 is fixedly connected with two bearing seats 75, the bearing seats 75 are respectively and fixedly connected to the upper end of the transmission rod 7 connected with the supporting plate 6 and the bottom surface of the supporting plate 6, the top end of the transmission rod 7 is fixedly connected with a fixing block 76 which plays a limiting role on the worm wheel 72, and the transmission rod 7 is connected to the bearing seats 75 in a penetrating way.
The lower end of the transmission rod 7 is fixedly connected with a gear 71, the gear 71 is positioned inside the sliding chute 61, the right end of the gear 71 is meshed and connected with the left end of the sliding rack 62, the left end of the sliding rack 62 is connected in the through hole 12 in a penetrating way, the right side of the sliding chute 61 is connected with the sliding rack 62 in a sliding way, the upper and lower end groove walls on the right side of the sliding chute 61 are respectively and fixedly connected with a sliding wheel part 611, the upper and lower ends of the sliding rack 62 are respectively and slidably connected with the sliding wheel part 611, the top end of the shell 1 of the impact device is provided with a penetrating groove 11, the front end side wall of the shell 1 of the impact device is rotatably connected with a rotating door 2, the joint of the rotating door 2 and the shell 1 of the impact device is rotatably connected with a rotating rod 21, the rotating door 2 is fixedly connected on the rotating rod 21, the rotating door 2 is, the limiting plate 23 is used for preventing the door panel 22 from deflecting inwards, and has a limiting effect.
The upper ends of the left side and the right side of an impact device shell 1 are provided with through holes 12, a sliding rack 62 is connected in the through holes 12 in a perforation way, the two sides of the bottom end of the inner wall of the impact device shell 1 are fixedly connected with limit rod sets 3, the limit rod sets 3 are composed of a base 31, a connecting rod 32, limit blocks 33 and springs 34, the bottom surface of the base 31 is fixedly connected on the bottom surface of the inner wall of the impact device shell 1, the left side of the base 31 is fixedly connected on the inner wall of the left side of the impact device shell 1, the connecting rod 32 is connected at the two ends of a fixed seat 5 in a perforation way, the two ends of the fixed seat 51 are correspondingly provided with mounting holes, the middle part of the upper end of the fixed seat 5 is fixedly connected with a placing table 51, the fixed seat 5 is connected on the connecting rod 32 in a sliding way, the upper end of the spring 34 is fixedly connected with the lower end of the fixed seat 5.
The center of the bottom surface of the inner wall of the impact device shell 1 is fixedly connected with a supporting block 13, the upper end of the supporting block 13 is fixedly connected with a cylinder 4, the model of the cylinder 4 is OSP-P16 type cylinder, the upper end of the cylinder 4 is fixedly connected with a connecting block 41, and the upper end of the connecting block 41 is fixedly connected with a fixing seat 5.
When the device is used, firstly, the motor 74 is opened, the motor 74 rotates to drive the worm 73 to rotate, the worm 73 is meshed with the worm wheel 72, so that the worm wheel 72 rotates along with the worm wheel 72, the worm wheel 72 is fixed on the transmission rod 7, namely, the worm wheel 72 rotates to drive the transmission rod 7 to rotate, the fixed block fixed at the top end of the transmission rod 7 plays a role in limiting the worm wheel 72, the transmission rod 7 rotates to drive the gear 71 fixedly connected with the transmission rod to rotate, the gear 71 is fixed inside the sliding groove 61, bearing seats 75 are arranged at the upper and lower connection parts of the transmission rod 7 and the sliding groove 61 to play a role in fixing, the gear 71 fixed on the sliding groove 61 rotates to drive the sliding rack 62 to horizontally displace under the sliding of the sliding piece 611, before an experiment is started, firstly, the motor 74 is opened to enable the inner side port of the sliding rack 62 to abut against, the impact ball required by the test is placed on the groove of the sliding rack 62 through the through groove 11, then the rotating door 2 is opened, the concrete block to be tested is placed on the placing table 51 through the rotating door 2, the height of the placing table 51 can be properly adjusted according to the test requirement, the specific operation mode is that the fixed seat 5 is jacked up through the air cylinder 4 and the connecting block 41 at the upper end of the air cylinder 4, as the limiting rod group 3 is arranged, the lower end of the fixed seat 5 is connected with the spring 34, so that the air cylinder 4 cannot generate the problems of inclination and the like in the lifting process of driving the fixed seat 5, and after the air cylinder 4 is contracted, the fixed seat 5 can slowly fall back under the action of the spring, wherein the limiting block 33 at the upper end of the limiting rod group 3 plays a limiting role to prevent the fixed seat 5 from falling off, after the preparation work is finished, the sliding rack 62 is driven by the motor, the test is completed by hitting the concrete block on the lower placing table 51.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A concrete impact resistance test device comprises an impact device shell (1) and is characterized in that a through groove (11) is formed in the top end of the impact device shell (1), a rotating door (2) is rotatably connected to the side wall of the front end of the impact device shell (1), through holes (12) are formed in the upper ends of the left side and the right side of the impact device shell (1), limit rod sets (3) are fixedly connected to the two sides of the bottom end of the inner wall of the impact device shell (1), a supporting block (13) is fixedly connected to the center of the bottom surface of the inner wall of the impact device shell (1), an air cylinder (4) is fixedly connected to the upper end of the supporting block (13), a connecting block (41) is fixedly connected to the upper end of the air cylinder (4), a fixing seat (5) is fixedly connected to the upper end of the connecting block (41), and a rotating rod (21) is rotatably connected to the connecting position of, rotate door (2) fixed connection on bull stick (21), rotate door (2) and constitute by door plant (22) and limiting plate (23), the top fixed connection of door plant (22) is in the bottom of bull stick (21), limiting plate (23) fixed connection is in the outside of door plant (22), inner wall upper end fixedly connected with backup pad (6) of stroker shell (1), spout (61) have been seted up in the middle of the inside of backup pad (6), the right side sliding connection of spout (61) has slip rack (62), on the upper and lower both ends cell wall on spout (61) right side respectively fixedly connected with pulley spare (611), the equal sliding connection in upper and lower both ends of slip rack (62) is on pulley spare (611).
2. The concrete impact test device according to claim 1, wherein a transmission rod (7) is connected to the left side of the inside of the sliding chute (61) in a penetrating manner, a gear (71) is fixedly connected to the lower end of the transmission rod (7), the right end of the gear (71) is meshed and connected to the left end of the sliding rack (62), and the left end of the sliding rack (62) is connected in the through hole (12) in a penetrating manner.
3. The concrete impact resistance test device according to claim 2, characterized in that a worm wheel (72) is fixedly connected to the upper end of the transmission rod (7), a worm (73) is rotatably connected to the worm wheel (72), a motor (74) is fixedly connected to the worm (73), the bottom surface of the motor (74) is fixedly connected to the upper end of the support plate (6), and the left side surface of the motor (74) is fixedly connected to the side surface of the inner wall of the impact device shell (1).
4. The concrete impact resistance test device according to claim 2, wherein a bearing seat (75) is fixedly connected to the connection part of the transmission rod (7) and the sliding chute (61), the bearing seat (75) is respectively and fixedly connected to the upper end of the transmission rod (7) connected with the support plate (6) and the bottom surface of the transmission rod (7) connected with the support plate (6), a fixed block (76) is fixedly connected to the top end of the transmission rod (7), and the transmission rod (7) is connected to the bearing seat (75) in a perforation mode.
5. The concrete impact resistance test device according to claim 1, wherein the limit rod set (3) is composed of a base (31), a connecting rod (32), a limit block (33) and a spring (34), the bottom surface of the base (31) is fixedly connected to the bottom surface of the inner wall of the impact device shell (1), the left side of the base (31) is fixedly connected to the inner wall of the left side of the impact device shell (1), the connecting rod (32) is fixedly connected to the upper end of the base (31), the limit block (33) is fixedly connected to the top end of the connecting rod (32), the spring (34) is sleeved at the lower end of the connecting rod (32), the bottom end of the spring (34) is fixedly connected to the upper end of the base (1), and the upper end of the spring (34) is fixedly connected to the lower end of the fixing seat (5).
6. The concrete impact test device according to claim 5, wherein the connecting rod (32) is connected with two ends of the fixing seat (5) in a perforation way, a placing table (51) is fixedly connected with the middle part of the upper end of the fixing seat (5), and the fixing seat (5) is connected with the connecting rod (32) in a sliding way.
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| CN202010852860.3A CN112067423A (en) | 2020-08-22 | 2020-08-22 | Concrete impact resistance test device |
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| CN202010852860.3A CN112067423A (en) | 2020-08-22 | 2020-08-22 | Concrete impact resistance test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964580A (en) * | 2021-03-17 | 2021-06-15 | 哈尔滨工业大学 | Concrete tensile impact performance test device and impact test method thereof |
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| CN209325316U (en) * | 2019-01-15 | 2019-08-30 | 滁州瑞能电力科技有限公司 | A kind of mounting structure of electromechanical equipment |
| CN209841578U (en) * | 2019-04-30 | 2019-12-24 | 重庆飞强混凝土有限公司 | Concrete impact resistance test device |
| CN210923350U (en) * | 2019-08-17 | 2020-07-03 | 滁州市富邦新型建材有限公司 | Concrete impact resistance test device |
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Application publication date: 20201211 |