CN211825505U - Concrete impact resistance test device - Google Patents

Abstract

The utility model relates to a concrete shock resistance test device has solved current test device and has installed the more hard problem of concrete test block when detecting. It includes that base, vertical guide pillar, the elevator on the guide pillar of setting on the base are located to the slip cap, rotates along vertical direction on the elevator and wears to be equipped with the lead screw, and the bottom of lead screw is rotated and is connected in the base, and the top of lead screw is connected with the motor, and the lower surface of elevator is provided with electromagnet, and electromagnet lower surface adsorbs there is the iron ball. Be equipped with the sample car on the base, the sample car includes the bottom plate, set up in the foreign steamer at bottom plate lower surface one side both ends, set up in the interior wheel at bottom plate lower surface opposite side middle part and set up in the push rod of bottom plate upper surface one end, the upper surface of base seted up with foreign steamer and interior wheel one-by-one complex race. The utility model discloses directly place the test block on the sample car and test when the test, removed the concrete test block from and removed the operation of getting the installation, use manpower sparingly.

Description

Concrete impact resistance test device

Technical Field

The utility model belongs to the technical field of concrete test device's technique and specifically relates to a concrete impact resistance test device is related to.

Background

Concrete, referred to as "concrete" for short: refers to the general name of engineering composite materials formed by cementing aggregate into a whole by cementing materials. The term concrete generally refers to cement as the cementing material and sand and stone as the aggregate; the cement concrete, also called ordinary concrete, is widely used in civil engineering. The high and low impact resistance of the concrete is an important aspect for evaluating the dynamic performance of the concrete. In airport runways, highway pavements, bridge decks and even modern protection structure projects with impact resistance, explosion resistance and earthquake resistance, higher requirements are put forward on the impact resistance and the pressure impact resistance of concrete. Before all pouring works are started, the concrete needs to be subjected to an impact resistance test, and whether the impact resistance of the concrete reaches the standard or not is detected according to test data, so that the safety of the engineering can be effectively ensured through the test.

The prior adopted test method is mostly to use an impact ball to carry out free falling, and the Chinese utility model patent with the granted publication number of CN208921573U discloses a concrete impact resistance test device which comprises a bottom plate, the left side of the upper surface of the bottom plate is fixedly connected with a power supply fixing box through a locking bolt, the upper surface of the power supply fixing box is nested with a power supply, a support rod is arranged on the right side of the power supply fixing box, a switch is arranged on the left side surface of the support rod, a top plate is welded on the right side of the upper surface of the supporting rod, a sliding rod is welded in the middle of the bottom surface of the top plate, threaded rods are nested on the left side and the right side of the middle part of the top plate, the lower ends of the threaded rods are connected with electromagnets through bearings, an iron ball is arranged below the electromagnet, a second through hole penetrating through the whole iron ball is formed in the iron ball, and a concrete test block is arranged on the right side of the surface of the upper portion of the bottom plate. The utility model discloses a make the iron ball all be the free fall motion when whereabouts at every turn, the initial velocity when having guaranteed the iron ball whereabouts is unanimous, has improved experimental data's accuracy nature.

However, the above technical solutions have the following disadvantages: need artifically move the concrete test block to the bottom plate when the installation concrete test block, still need artifically to move down the concrete test block after detecting, relatively consume the manpower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a concrete shock resistance test device, its advantage lies in: the operation of removing the concrete test block is avoided during testing, labor is saved, and testing is convenient.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a concrete impact resistance test device comprises a base, wherein a guide pillar is vertically arranged on one side of the base, a lifting block is sleeved on the outer side of the guide pillar in a sliding mode, a lead screw is arranged on the lifting block in a penetrating mode in a rotating mode in the vertical direction, the bottom end of the lead screw is connected to the base in a rotating mode, a motor is arranged at the top end of the lead screw, the top end of the lead screw is connected with an output shaft of the motor, an electromagnetic chuck is arranged on the lower surface, away from one end of the lead screw, of the lifting block, a power box is arranged on one side, close to the guide pillar, of the base, the electromagnetic chuck is electrically connected with the power box, an iron ball is adsorbed on the lower surface of the electromagnetic chuck, a sample vehicle for placing a concrete test block is arranged on the upper surface of the base, the sample vehicle comprises a bottom plate, outer wheels arranged at two, the upper surface of the base is provided with wheel grooves matched with the outer wheel and the inner wheel one by one, when the outer wheel and the inner wheel are embedded in the wheel grooves, the lower surface of the base abuts against the upper surface of the base, the outer wheel and the inner wheel are spaced from the bottom of the wheel grooves, one end of the base, far away from the guide pillar, is provided with a guide inclined plane, and the guide inclined plane is gradually inclined downwards along the direction far away from the base.

By adopting the technical scheme, the motor and the screw rod are used for controlling the lifting of the lifting block, the electromagnetic chuck is used for adsorbing the iron ball so as to adjust the free falling height of the iron ball according to the test requirement, the concrete test block is transported to the test point through the sample vehicle before the test, then the sample vehicle is pushed onto the base, and the outer wheel and the inner wheel are embedded into the wheel groove, at the moment, the outer wheel and the inner wheel are both separated from the bottom of the wheel groove, and the lower surface of the bottom plate is abutted against the upper surface of the base, so that the damage of the outer wheel and the inner wheel caused by large impact on the outer wheel and the inner wheel when the iron ball falls freely and impacts the concrete test block is avoided, the wheel groove can position the sample vehicle during the test, the offset of the impact point of the iron ball and the concrete test block caused by the dislocation of the sample vehicle is avoided, and the deviation of the test result caused by the buffer of the impact on the outer wheel and the inner wheel, through placing the concrete test block directly on the sample car and testing, having removed the installation of getting of concrete test block from, also convenient direct pulling sample car takes off the concrete test block after the test, uses manpower sparingly, and the setting on guide inclined plane is convenient for push away the base with the sample car on, uses manpower sparingly.

The utility model discloses further set up to: the upper surface of the base is provided with guide grooves in one-to-one correspondence with the wheel grooves, one ends of the guide grooves are communicated with the wheel grooves, and the other ends of the guide grooves penetrate through the guide inclined planes.

Through adopting above-mentioned technical scheme, the setting up of guiding groove can play the guide effect to the removal of sample car, makes the foreign steamer of sample car with interior the wheel inlay more easily and establishes the wheel bank, conveniently fixes a position the sample car, also makes foreign steamer and interior wheel roll-off from the wheel bank more easily simultaneously, facilitates the use.

The utility model discloses further set up to: and the communicated part of the guide groove and the wheel groove is subjected to fillet treatment.

Through adopting above-mentioned technical scheme, the fillet of guiding groove and race intercommunication department is handled and can be reduced the foreign steamer and interior wheel and the race between frictional force, conveniently pulls out the sample car after the test, uses manpower sparingly.

The utility model discloses further set up to: and a limiting frame is arranged at the edge of the upper surface of the bottom plate.

Through adopting above-mentioned technical scheme, the setting of spacing frame is used for spacing to the concrete test block, and the concrete test block landing from the sample car when preventing to transport also can prevent that the fragment that the concrete test block produced because of the iron ball striking from splashing when testing, avoids bringing inconveniently for test environment's clearance.

The utility model discloses further set up to: one side of the limiting frame is provided with a frame door, one end of the frame door is rotatably connected with the limiting frame, the other end of the frame door is provided with a hasp, and the frame door and the limiting frame are fixed through the hasp.

Through adopting above-mentioned technical scheme, the setting of frame door is convenient for the installation of concrete test block, need lift the concrete test block to the height that exceeds spacing frame when avoiding installing the concrete test block, uses manpower sparingly, and the hasp is used for fixing the frame door.

The utility model discloses further set up to: the upper surface of the bottom plate is provided with a positioning groove, and the center of the positioning groove is collinear with the center of the iron ball along the vertical direction.

Through adopting above-mentioned technical scheme, the constant head tank is used for fixing a position the concrete test block, makes iron ball and concrete test block keep just right, and then has improved the degree of accuracy of test.

The utility model discloses further set up to: the edge of the notch of the positioning groove is set to be an oblique angle.

Through adopting above-mentioned technical scheme, the oblique angle of constant head tank notch edge is handled and can be played the guide effect to the installation of concrete test block, and the convenience inlays the bottom of concrete test block and establishes to the constant head tank in, the notch of constant head tank and the bottom of concrete test block are inconsistent and bring inconvenience for the installation when avoiding the concrete test block installation.

The utility model discloses further set up to: and scale marks are arranged on the side wall of the guide post.

Through adopting above-mentioned technical scheme, the setting of scale mark is convenient for the height of accurate control elevator, and then has improved the degree of accuracy of test.

To sum up, the utility model discloses a beneficial technological effect does:

the concrete test block is placed on the sample vehicle for direct test, so that the handling and installation of the concrete test block are avoided, the sample vehicle can be conveniently and directly pulled to take the concrete test block after the test, the labor is saved, the wheel groove can be arranged for positioning the sample vehicle during the test, the deviation of the impact point of the iron ball and the concrete test block caused by the dislocation of the sample vehicle is avoided, and the deviation of the test result caused by the buffering of the impact of the outer wheel and the inner wheel can be prevented;

the arrangement of the guide groove can guide the movement of the sample car, so that an outer wheel and an inner wheel of the sample car are more easily embedded in the wheel groove, the sample car is conveniently positioned, and the outer wheel and the inner wheel are more easily slid out of the wheel groove and are convenient to use;

the limiting frame is used for limiting the concrete test block, so that the concrete test block is prevented from sliding off the sample vehicle during transportation, and meanwhile, fragments of the concrete test block generated by iron ball impact during testing can be prevented from splashing, and inconvenience in cleaning a testing environment is avoided;

the setting of constant head tank can fix a position the concrete test block, makes iron ball and concrete test block keep just right, and then has improved the degree of accuracy of test.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is a schematic view of the structure of the sample cart.

In the figure, 1, a base; 11. a guide post; 111. scale lines; 12. a power supply box; 13. a wheel groove; 14. a guide ramp; 15. a guide groove; 2. a lifting block; 21. a screw rod; 22. a motor; 23. an electromagnetic chuck; 24. an iron ball; 3. a sample vehicle; 31. a base plate; 311. positioning a groove; 32. an outer wheel; 33. an inner wheel; 34. a push rod; 35. a limiting frame; 351. a frame door; 3511. a hasp is provided.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a concrete shock resistance test device, including base 1, the vertical welding in one side of base 1 upper surface has a guide pillar 11, and the outside slip cover of guide pillar 11 is equipped with elevator 2, and elevator 2's one end is followed vertical direction and is rotated and is worn to be equipped with lead screw 21, and the bottom of lead screw 21 is passed through the bearing and is rotated and connect in base 1, and the top of lead screw 21 is connected with motor 22, the top of lead screw 21 and motor 22's output shaft fixed connection. An electromagnetic chuck 23 is fixedly arranged on the lower surface of one end, far away from the screw rod 21, of the lifting block 2, a power box 12 is arranged on one side, close to the guide post 11, of the base 1, the electromagnetic chuck 23 is electrically connected with the power box 12, and an iron ball 24 is adsorbed on the lower surface of the electromagnetic chuck 23.

Referring to fig. 2 and 3, a sample vehicle 3 for placing concrete test blocks is arranged on the upper surface of the base 1, and the sample vehicle 3 includes a bottom plate 31, outer wheels 32 rotatably mounted at two ends of one side of the lower surface of the bottom plate 31, two inner wheels 33 rotatably mounted at the other side of the lower surface of the bottom plate 31 near the middle, and a push rod 34 vertically welded at one end of the upper surface of the bottom plate 31. The wheel groove 13 that cooperates one by one with foreign steamer 32 and interior wheel 33 is seted up to the upper surface of base 1, and the inner wall of wheel groove 13 is the cambered surface, and when foreign steamer 32 and interior wheel 33 set up in wheel groove 13, the lower surface of bottom plate 31 butt in the upper surface of base 1 and foreign steamer 32 and interior wheel 33 all with the bottom looks interval of wheel groove 13. One end of the base 1 far away from the guide post 11 is gradually inclined downwards along the direction far away from the base 1 to form a guide inclined surface 14.

During testing, the electromagnetic chuck 23 is electrified to adsorb the iron ball 24, and the motor 22 and the screw rod 21 are used for controlling the lifting of the lifting block 2, so that the free falling height of the iron ball 24 can be adjusted according to the testing requirement. The side wall of the guide post 11 is provided with scale marks 111 so as to accurately control the height of the lifting block 2, and further improve the testing accuracy.

Transport the concrete test block to the test point through sample car 3 before the test, then push away sample car 3 make on the base 1 in outer wheel 32 and interior wheel 33 inlay establishes wheel groove 13, outer wheel 32 and interior wheel 33 are separated and the lower surface of bottom plate 31 is with the upper surface looks butt of base 1 with the bottom of wheel groove 13 this moment, and then caused great impact and lead to outer wheel 32 and interior wheel 33 to damage to outer wheel 32 and interior wheel 33 when having avoided iron ball 24 free fall striking concrete test block. The race 13 can be fixed a position sample car 3 when the test, avoids sample car 3 dislocation and leads to the striking point of iron ball 24 and concrete test block to appear the deviation, also can prevent simultaneously that outer wheel 32 and interior wheel 33 from cushioning the impact and leading to the test result to appear the deviation.

Through placing the concrete test block directly on sample car 3 and testing, removed the installation of taking of concrete test block from, also convenient direct pulling sample car 3 takes off the concrete test block after the test, uses manpower sparingly, and the setting of guide inclined plane 14 is convenient for push away sample car 3 on base 1, uses manpower sparingly.

Referring to fig. 2, the upper surface of the base 1 is provided with guide grooves 15 corresponding to the wheel grooves 13 one to one, one end of each guide groove 15 is communicated with the wheel groove 13, and the other end of each guide groove 15 penetrates through the guide inclined surface 14. The guide groove 15 can guide the movement of the sample car 3, so that the outer wheel 32 and the inner wheel 33 of the sample car 3 can be embedded into the wheel groove 13 more easily, the sample car 3 is convenient to position, the height required to be raised when the outer wheel 32 and the inner wheel 33 slide out of the wheel groove 13 is reduced, the outer wheel 32 and the inner wheel 33 can slide out of the wheel groove 13 more easily, and the use is convenient.

The fillet processing is all carried out with the intercommunication department of race 13 to guide groove 15 to reduce the frictional force between outer wheel 32 and interior wheel 33 and the race 13, conveniently pull out sample car 3 after the test, use manpower sparingly.

Referring to fig. 3, the edge of bottom plate 31 upper surface has perpendicularly welded a spacing frame 35 to be used for carrying on spacingly to the concrete test block, concrete test block landing from sample car 3 when preventing to transport, the fragment that the concrete test block produced because of 24 striking of iron ball splashes when also can preventing to test simultaneously, avoids bringing inconveniently for test environment's clearance.

The frame door 351 is installed on one side of the limit frame 35 far away from the push rod 34, one end of the frame door 351 is hinged to the limit frame 35, the hasp 3511 is installed at the other end of the frame door 351, and the frame door 351 and the limit frame 35 are fixed through the hasp 3511. The installation of the concrete test block of being convenient for of setting up of frame door 351 needs to lift the concrete test block to the height that exceeds spacing frame 35 when avoiding installing the concrete test block, uses manpower sparingly.

Referring to fig. 1, a positioning groove 311 is formed in the upper surface of the bottom plate 31, the center of the positioning groove 311 and the center of the iron ball 24 are collinear in the vertical direction, and the positioning groove 311 is used for positioning the concrete test block, so that the iron ball 24 and the concrete test block are kept right opposite, and the testing accuracy is further improved. The edge of constant head tank 311 notch carries out the oblique angle and handles to in guide the installation of concrete test block, the notch of constant head tank 311 is inconsistent and brings inconvenience for the installation with the bottom of concrete test block when avoiding the concrete test block installation.

The implementation principle of the embodiment is as follows: through placing the concrete test block directly on sample car 3 and testing, removed the installation of taking of concrete test block from, also convenient direct pulling sample car 3 takes off the concrete test block after the test, uses manpower sparingly. Through setting up race 13 and fixing a position sample car 3 when the test, avoid sample car 3 dislocation and lead to the striking point emergence deviation of iron ball 24 and concrete test block, also can protect outer wheel 32 and interior wheel 33 simultaneously, prevent that outer wheel 32 and interior wheel 33 from damaging because of the striking to can prevent that outer wheel 32 and interior wheel 33 from cushioning and leading to the test result to appear the deviation to the striking. Carry on spacingly to the concrete test block through setting up spacing frame 35, concrete test block landing from sample car 3 when preventing to transport also can prevent during the test that the fragment that the concrete test block produced because of 24 striking of iron ball splashes simultaneously, avoids bringing inconveniently for testing environment's clearance.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A concrete impact resistance test device comprises a base (1), wherein a guide post (11) is vertically arranged on one side of the base (1), a lifting block (2) is slidably sleeved on the outer side of the guide post (11), a lead screw (21) is rotatably arranged on the lifting block (2) in a penetrating manner along the vertical direction, the bottom end of the lead screw (21) is rotatably connected to the base (1), a motor (22) is arranged at the top end of the lead screw (21), the top end of the lead screw (21) is connected with an output shaft of the motor (22), an electromagnetic chuck (23) is arranged on the lower surface of one end, far away from the lead screw (21), of the lifting block (2), a power supply box (12) is arranged on one side, close to the guide post (11), of the base (1), the electromagnetic chuck (23) is electrically connected with the power supply box (12), and an iron ball (24) is arranged, the method is characterized in that: the upper surface of the base (1) is provided with a sample vehicle (3) used for placing concrete test blocks, the sample vehicle (3) comprises a bottom plate (31), outer wheels (32) arranged at two ends of one side of the lower surface of the bottom plate (31), an inner wheel (33) arranged in the middle of the other side of the lower surface of the bottom plate (31) and a push rod (34) arranged at one end of the upper surface of the bottom plate (31), wheel grooves (13) matched with the outer wheels (32) and the inner wheel (33) one by one are formed in the upper surface of the base (1), when the outer wheels (32) and the inner wheel (33) are embedded in the wheel grooves (13), the lower surface of the bottom plate (31) abuts against the upper surface of the base (1), the outer wheels (32) and the inner wheel (33) are both separated from the bottom of the wheel grooves (13), and one end, far away from the guide pillar (11), of the base (1) is provided with a guide inclined plane (14), the guide inclined plane (14) is gradually inclined downwards along the direction far away from the base (1).

2. The concrete impact test device of claim 1, wherein: the upper surface of the base (1) is provided with guide grooves (15) which correspond to the wheel grooves (13) one to one, one ends of the guide grooves (15) are communicated with the wheel grooves (13), and the other ends of the guide grooves (15) penetrate through the guide inclined surfaces (14).

3. The concrete impact resistance test device of claim 2, wherein: and the communication part of the guide groove (15) and the wheel groove (13) is subjected to fillet treatment.

4. The concrete impact test device of claim 1, wherein: and a limiting frame (35) is arranged at the edge of the upper surface of the bottom plate (31).

5. A concrete impact test device according to claim 4, characterized in that: one side of the limiting frame (35) is provided with a frame door (351), one end of the frame door (351) is rotatably connected with the limiting frame (35), the other end of the frame door (351) is provided with a buckle (3511), and the frame door (351) and the limiting frame (35) are fixed through the buckle (3511).

6. The concrete impact test device of claim 1, wherein: the upper surface of the bottom plate (31) is provided with a positioning groove (311), and the center of the positioning groove (311) and the center of the iron ball (24) are collinear along the vertical direction.

7. A concrete impact test device according to claim 6, characterized in that: the edge of the notch of the positioning groove (311) is set to be an oblique angle.

8. The concrete impact test device of claim 1, wherein: the side wall of the guide post (11) is provided with scale marks (111).

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