CN213301846U

CN213301846U - Concrete impact resistance test device

Info

Publication number: CN213301846U
Application number: CN202021962182.8U
Authority: CN
Inventors: 陈凤英
Original assignee: Hebei Xiong'an Minggang Concrete Co ltd
Current assignee: Hebei Xiong'an Minggang Concrete Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-05-28
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a concrete shock resistance test device, including bottom plate and two support columns, two the support column symmetry sets up lateral wall on the bottom plate, and the common fixedly connected with roof in two support column tops, rotate the lead screw that is connected with position symmetry on the bottom plate, two the lead screw is located between two support columns, and two lead screws upwards run through the roof setting, the fixed driving motor that is provided with of roof side wall center department, the driving motor output shaft upwards runs through the fixed cover of roof and is equipped with the action wheel, and roof and driving motor output shaft department are provided with the bearing of matching, every it is equipped with corresponding from the driving wheel all to overlap on the lead screw, be connected through the transmission belt drive that corresponds between follow driving wheel and the action wheel. The utility model discloses the removal of being convenient for this device need not artifical transport, and is comparatively practical, and is easy and simple to handle, and the balancing weight that can use different masses tests shock resistance to the concrete at different heights, and the test result is comparatively comprehensive.

Description

Concrete impact resistance test device

Technical Field

The utility model relates to a concrete test technical field especially relates to a concrete shock resistance test device.

Background

For a long time, in structures which frequently bear dynamic loads, such as various silo structures, pavement concrete, bridge deck concrete, railway sleepers, ore pass shafts, national defense facilities and the like, the concrete usually loses service performance due to insufficient impact resistance, so that before all pouring works are started, the concrete needs to be subjected to an impact resistance test, and test data are used for detecting whether the impact resistance of the concrete reaches the standard or not.

In the actual life, often by staff's manual lifting with striking piece or striking ball striking concrete test, this kind of mode staff working strength is big, has certain potential safety hazard, and measuring result is accurate comprehensive inadequately moreover, consequently needs design a concrete impact resistance test device to solve this problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects that the labor capacity of workers is large and the measuring result is not comprehensive enough in the prior art, thereby providing a concrete impact resistance test device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a concrete impact resistance test device comprises a bottom plate and two support columns, wherein the two support columns are symmetrically arranged on the upper side wall of the bottom plate, the top ends of the two support columns are fixedly connected with a top plate together, the bottom plate is rotatably connected with lead screws with symmetrical positions, the two lead screws are positioned between the two support columns, the two lead screws upwards penetrate through the top plate, a driving motor is fixedly arranged at the center of the lower side wall of the top plate, an output shaft of the driving motor upwards penetrates through the top plate and is fixedly sleeved with a driving wheel, matched bearings are arranged at the joints of the top plate and the output shaft of the driving motor, each lead screw is sleeved with a corresponding driven wheel, the driven wheel is in transmission connection with the driving wheel through corresponding transmission belts, lifting plates are sleeved on the two lead screws together and are in threaded connection with the lead screws, and, the lifting plate is internally provided with a cavity, an impact block is arranged below the lifting plate, a clamping device matched with the impact block is arranged in the cavity, an impact opening corresponding to the impact block is formed in the bottom plate, and a power supply electrically connected with the driving motor is arranged on the bottom plate.

Preferably, clamping device includes the regulation pole of being connected with the side wall rotation on the cavity, adjust the pole and run through the first helical gear of lateral wall fixedly connected with on the cavity downwards, and the cavity inside wall rotates and is connected with multiunit evenly distributed's threaded rod, every the equal fixedly connected with of one end and the second helical gear of first helical gear meshing that the cavity lateral wall was kept away from to the threaded rod, threaded connection has the swivel nut on the threaded rod, every the equal fixedly connected with connecting rod of lateral wall under the swivel nut, the lateral wall is provided with the strip type opening that matches with the connecting rod under the cavity, every the connecting rod all runs through the strip type opening fixedly connected with grip block that corresponds downwards, two the grip block matches the setting with the striking piece.

Preferably, the side walls of the two clamping plates which are abutted against the impact block are subjected to rough rubbing and polishing treatment.

Preferably, the lifter plate bilateral symmetry is provided with supplementary gag lever post, and the support column lateral wall is provided with the spacing groove that matches with supplementary gag lever post.

Preferably, the lower side wall of the bottom plate is provided with a plurality of groups of universal wheels which are uniformly distributed.

The utility model has the advantages that: through the universal wheel that is provided with multiunit evenly distributed under the bottom plate, the removal of this device of being convenient for need not artifical transport, and is comparatively practical, and is easy and simple to handle, can use the balancing weight of different masses to test the concrete impact resistance at different heights, and the test result is comparatively comprehensive.

Drawings

Fig. 1 is a schematic structural view of a concrete impact resistance test device provided by the utility model;

fig. 2 is an enlarged view of a point a in fig. 1.

In the figure: the device comprises a base plate 1, a support column 2, a top plate 3, a lead screw 4, a driving motor 5, a driving wheel 6, a driven wheel 7, a driving belt 8, a lifting plate 9, an adjusting rod 10, an impact opening 11, a first bevel gear 12, a second bevel gear 13, a threaded rod 14, a clamping plate 15 and an impact block 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a concrete impact resistance test device comprises a bottom plate 1 and two support columns 2, wherein the two support columns 2 are symmetrically arranged on the upper side wall of the bottom plate 1, the lower side wall of the bottom plate 1 is provided with a plurality of groups of universal wheels which are uniformly distributed, the device is convenient to move without manual carrying and is practical, the top ends of the two support columns 2 are fixedly connected with a top plate 3 together, the bottom plate 1 is rotatably connected with two lead screws 4 which are symmetrically arranged, the two lead screws 4 are positioned between the two support columns 2, the two lead screws 4 upwards penetrate through the top plate 3, a driving motor 5 is fixedly arranged at the center of the lower side wall of the top plate 3, the driving motor 5 is a positive and negative driving motor 5, the output shaft of the motor can rotate forwards and reversely, the output shaft of the driving motor 5 upwards penetrates through the top plate 3 and is fixedly, a matched bearing is arranged at the connection position of the top plate 3 and the output shaft of the driving motor 5, a corresponding driven wheel 7 is sleeved on each lead screw 4, the driven wheel 7 is in transmission connection with the driving wheel 6 through a corresponding transmission belt 8, a lifting plate 9 is sleeved on the two lead screws 4 together, auxiliary limiting rods are symmetrically arranged on two sides of the lifting plate 9, a limiting groove matched with the auxiliary limiting rods is formed in the side wall of the support column 2, the stability of the lifting plate 9 is improved through the arrangement of the auxiliary limiting rods and the limiting groove, the lifting plate 9 is in threaded connection with the lead screws 4, the lifting plate 9 is positioned between the top plate 3 and the bottom plate 1, a cavity is formed in the lifting plate 9, and an impact block 16 is arranged below the lifting plate;

a clamping device matched with the impact block 16 is arranged in the cavity, the clamping device comprises an adjusting rod 10 which is rotatably connected with the upper side wall of the cavity, the adjusting rod 10 downwards penetrates through the upper side wall of the cavity and is fixedly connected with a first helical gear 12, the inner side wall of the cavity is rotatably connected with a plurality of groups of threaded rods 14 which are uniformly distributed, one end of each threaded rod 14, which is far away from the side wall of the cavity, is fixedly connected with a second helical gear 13 which is meshed with the first helical gear 12, a rotating nut is connected with the upper thread of the threaded rod 14, the lower side wall of each rotating nut is fixedly connected with a connecting rod, the lower side wall of the cavity is provided with a strip-shaped opening matched with the connecting rod, each connecting rod downwards penetrates through the corresponding strip-shaped opening and is fixedly connected with a clamping plate 15, the two clamping plates 15 are matched with the impact block 16, the friction force between the clamping plate 15 and the impact block 16 is increased, the impact block 16 is better clamped and fixed, the impact port 11 corresponding to the impact block 16 is formed in the bottom plate 1, and the power supply electrically connected with the driving motor 5 is arranged on the bottom plate 1.

In the utility model, the utility model is moved to the position right above the concrete to be tested, then the adjusting rod 10 is rotated, the first bevel gear 12 drives the second bevel gear 13 to rotate, the threaded rod 14 rotates along with the threaded rod, the rotating nut connected with the threaded rod 14 by screw thread moves on the threaded rod 14, the connecting rod fixedly arranged at the lower end of the rotating nut drives the clamping plate 15 to realize the clamping of the impact block 16, then the driving motor 5 is started, the output shaft of the driving motor 5 rotates forwards, the driving wheel 6 drives the screw rod 4 to rotate by the driving belt 8, the lifting plate 9 connected with the screw rod 4 by screw thread ascends along with the screw rod, when the lifting plate 9 ascends to the designated height, the driving motor 5 is closed, the adjusting rod 10 rotates backwards, the clamping plate 15 is loosened, the impact block 16 is impacted by gravity on the concrete, then the impact block 16 is clamped again, the impact, the test of the concrete impact resistance can be realized.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a concrete impact resistance test device, includes bottom plate (1) and two support columns (2), two support column (2) symmetry sets up lateral wall on bottom plate (1), its characterized in that, and two common fixedly connected with roof (3) in support column (2) top, rotate on bottom plate (1) and be connected with position symmetry's lead screw (4), two lead screw (4) are located between two support columns (2), and two lead screws (4) upwards run through roof (3) and set up, lateral wall center department is fixed and is provided with driving motor (5) under roof (3), driving motor (5) output shaft upwards runs through roof (3) fixed cover and is equipped with action wheel (6), and roof (3) and driving motor (5) output shaft junction are provided with the bearing that matches, every all overlap on lead screw (4) and be equipped with corresponding from driving wheel (7), the automatic lifting device is characterized in that the driven wheel (7) is in transmission connection with the driving wheel (6) through a corresponding transmission belt (8), two lifting plates (9) are sleeved on the screw rod (4) together, the lifting plates (9) are in threaded connection with the screw rod (4), the lifting plates (9) are located between the top plate (3) and the bottom plate (1), a cavity is formed in the lifting plates (9), an impact block (16) is arranged below the lifting plates (9), a clamping device matched with the impact block (16) is arranged in the cavity, an impact opening (11) corresponding to the impact block (16) is formed in the bottom plate (1), and a power supply electrically connected with the driving motor (5) is arranged on the bottom plate (1).

2. The concrete impact resistance test device according to claim 1, the clamping device comprises an adjusting rod (10) rotatably connected with the upper side wall of the cavity, the adjusting rod (10) downwards penetrates through the upper side wall of the cavity and is fixedly connected with a first helical gear (12), and the inner side wall of the cavity is rotationally connected with a plurality of groups of threaded rods (14) which are uniformly distributed, one end of each threaded rod (14) far away from the side wall of the cavity is fixedly connected with a second helical gear (13) engaged with the first helical gear (12), the threaded rod (14) is connected with a rotating nut in a threaded manner, the lower side wall of each rotating nut is fixedly connected with a connecting rod, the lower side wall of the cavity is provided with strip-shaped openings matched with the connecting rods, each connecting rod penetrates through the corresponding strip-shaped opening downwards to be fixedly connected with a clamping plate (15), and the two clamping plates (15) are matched with the impact block (16).

3. A concrete impact test device according to claim 2, characterized in that the side walls of the two clamping plates (15) against the impact block (16) are rough-ground.

4. The concrete impact resistance test device according to claim 1, wherein auxiliary limiting rods are symmetrically arranged on two sides of the lifting plate (9), and limiting grooves matched with the auxiliary limiting rods are arranged on the side walls of the supporting columns (2).

5. A concrete impact test device according to claim 1, characterized in that the lower side wall of the bottom plate (1) is provided with a plurality of groups of uniformly distributed universal wheels.