CN211477887U - A kind of concrete compressive strength testing device - Google Patents

Abstract

The utility model relates to the technical field of compressive testing equipment, and discloses a concrete compressive strength testing device, comprising a base, fixed blocks are fixedly connected to both sides of the middle part of the upper end of the base, a receiving box is arranged between the two workbenches, and the base The upper end is fixedly connected with a workbench located outside the two fixing blocks. The concrete compressive strength detection device can adjust the left and right movement of the lead screw nut slider through the forward and reverse rotation of the servo motor and the slide rail, so as to realize the left and right movement of the pressure equipment, so that the pressure equipment can resist the pressure test. Compression tests are carried out on all parts of the concrete slab. By analyzing each group of data, accurate data on the compressive capacity of the concrete slab can be obtained to achieve accurate testing. At the same time, the screw drive mechanism is set on the upper part of the testing equipment, and the servo motor is installed. Externally, it not only greatly saves the space inside the testing equipment, but also facilitates the heat dissipation of the servo motor and improves its working efficiency.

Description

A kind of concrete compressive strength testing device

technical field

The utility model relates to the technical field of compressive testing equipment, in particular to a concrete compressive strength testing device.

Background technique

With the continuous development of science and technology, my country's infrastructure projects are also progressing rapidly, and all kinds of concrete are inseparable in the process of infrastructure construction. In today's construction projects, commercial concrete is widely used, whether it is reinforced commercial concrete structure, or brick Mixed structure buildings are inseparable from commercial concrete, and the quality of commercial concrete has a great impact not only on the safety of the building structure, but also on the cost of construction projects. Therefore, the quality inspection of commercial concrete is an important part of the entire inspection work. One of the links, and its compressive strength is its more important performance parameter.

At present, there are various methods for testing the compressive strength of concrete, but the existing concrete compressive mechanical equipment usually has some defects in the use process; , not only takes up a lot of space in the equipment, but also greatly limits the scope of activity of the fixing device. It is difficult to fix some larger or smaller concrete slabs well. The equipment is often fixed in the middle of the equipment, which also leads to the compression test only in the middle of the concrete slab to be tested. The compression data is limited, resulting in inaccurate data. By moving the concrete slab and moving its edge to the middle for testing, it is extremely Trouble, very inconvenient.

Utility model content

Aiming at the shortcomings of the existing concrete compressive equipment in the use process, the utility model provides a concrete compressive strength detection device, which has the advantages of small weight, reasonable structure and easy cleaning, and solves the problems in the above background technology. .

The utility model provides the following technical solutions: a concrete compressive strength detection device, comprising a base, a fixing block is fixedly connected to both sides of the middle part of the upper end of the base, a receiving box is arranged between the two fixing blocks, and the base is The upper end is fixedly connected with a workbench located outside the two fixing blocks, and both sides of the upper end of the base are fixedly connected with support plates, the middle of the two support plates are provided with sliding holes, and the bottoms of the outer sides of the two support plates are A rotating motor is fixedly installed, the output shaft end of the rotating motor is fixedly connected with a first lead screw, the first lead screw is threadedly connected with a first lead screw nut, and one side of the first lead screw nut is fixedly connected with a A connecting rod, the connecting rod is movably sleeved with the sliding hole, the other end of the connecting rod is fixedly connected with a second lead screw nut, the second lead screw nut is threadedly connected with the threaded rod, and the bottom end of the threaded rod is fixed A fixing device is connected, a servo motor is fixedly installed on the upper part of the outer side of the support plate, and a second lead screw is fixedly connected to the output shaft end of the servo motor, and the second lead screw penetrates through the two support plates, and the second lead screw The top end of the lead screw is movably sleeved with a sleeve base that is fixedly connected to the support plate, the upper ends of the two support plates are fixedly connected to a top plate, the middle of the upper end of the top plate is fixedly connected to a control panel, and the bottom of the top plate is provided with a A slide rail, the slide rail is movably sleeved with a lead screw nut slider threadedly connected with the second lead screw, the bottom of the lead screw nut slider is fixedly connected with a hydraulic cylinder, and the bottom of the hydraulic cylinder is fixedly connected with a pressure The middle part of the bottom end of the pressure sensor is fixedly connected with a pressing block.

Selectively, the fixing device includes a support frame, the bottom of the support frame is fixedly connected with a bottom plate, the upper surface of the inner cavity of the support frame is fixedly connected with a pneumatic cylinder, and the bottom end of the pneumatic cylinder is fixedly connected with the bottom plate, And the outer side of the output shaft of the pneumatic cylinder is surrounded by an elastic piece, and the bottom of the bottom plate is provided with a rubber cushion.

Selectively, the upper surface of the worktable is provided with grooves, and both sides of the grooves of the worktable are provided with anti-skid teeth.

Preferably, one end of the connecting rod is fixedly connected to the first lead screw nut, and one end of the other end of the connecting rod is fixedly connected to the second lead screw nut, and the width of the connecting rod is adapted to the sliding hole.

Compared with the existing concrete compression equipment, the utility model has the following beneficial effects:

1. The concrete compressive strength detection device is fixedly connected with the first lead screw nut through one end of the connecting rod, and the other end is fixedly connected with the second lead screw nut, and the width of the connecting rod is adapted to the sliding hole, when the rotating motor drives the first lead screw nut. When the lead screw rotates, the first lead screw nut will move up and down on the first lead screw according to the rotation direction of the motor under the restriction of the sliding hole, and drive the fixing device to rise and fall. The height of the device is fine-tuned to ensure that the fixing device is not only suitable for concrete slabs with larger and smaller thicknesses, but also can be fixed well to ensure the fixing effect.

2. The concrete compressive strength detection device can adjust the left and right movement of the screw nut slider through the forward and reverse rotation of the servo motor, so as to realize the left and right movement of the pressure equipment, so that the pressure equipment can resist the pressure Compression tests are carried out on all parts of the tested concrete slabs. By analyzing each group of data, accurate data on the compressive capacity of the concrete slabs can be obtained to achieve accurate testing. The motor is installed outside, which not only greatly saves the space inside the testing equipment, but also facilitates the heat dissipation of the servo motor and improves its work efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a schematic view of the side structure of the fixing device of the present invention.

In the figure: 1. base; 2. fixed block; 3. receiving box; 4. worktable; 5. supporting plate; 6. sliding hole; 7. rotating motor; 8. first lead screw; 9. first lead screw Nut; 10, connecting rod; 11, second screw nut; 12, threaded rod; 13, fixing device; 1301, support frame; 1302, bottom plate; 1303, pneumatic cylinder; 1304, elastic part; 14, servo motor; 15 16, sleeve base; 17, top plate; 18, control panel; 19, slide rail; 20, screw nut slider; 21, hydraulic cylinder; 22, pressure sensor; 23, extrusion block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Fig. 1-2, a concrete compressive strength detection device, including a base 1, a fixing block 2 is fixedly connected to both sides of the upper end of the base 1, a receiving box 3 is arranged between the two fixing blocks 2, and the upper end of the base 1 is A workbench 4 is fixedly connected to the outside of the two fixing blocks 2, and a support plate 5 is fixedly connected to both sides of the upper end of the base 1. The middle of the two support plates 5 is provided with a sliding hole 6, and the two support plates 5 The bottom of the outer side is fixedly installed with a rotating motor 7, the output shaft end of the rotating motor 7 is fixedly connected with a first lead screw 8, the first lead screw 8 is threadedly connected with the first lead screw nut 9, and one of the first lead screw nut 9 is The side is fixedly connected with a connecting rod 10, the connecting rod 10 is movably sleeved with the sliding hole 6, the other end of the connecting rod 10 is fixedly connected with a second lead screw nut 11, the second lead screw nut 11 is threadedly connected with the threaded rod 12, and the threaded rod 12 A fixing device 13 is fixedly connected to the bottom end of the support plate 5 , a servo motor 14 is fixedly installed on the upper part of the outer side of the support plate 5 , and a second lead screw 15 is fixedly connected to the output shaft end of the servo motor 14 , and the second lead screw 15 penetrates through the two support plates 5 , the top of the second screw 15 is movably sleeved with a sleeve base 16 that is fixedly connected to the support plate 5, the upper ends of the two support plates 5 are fixedly connected to a top plate 17, and the middle of the upper end of the top plate 17 is fixedly connected to a control panel 18. The bottom of the 17 is provided with a slide rail 19, the slide rail 19 is movably sleeved with a lead screw nut slider 20 threadedly connected with the second lead screw 15, and a hydraulic cylinder 21 is fixedly connected to the bottom of the lead screw nut slider 20. The hydraulic cylinder 21 A pressure sensor 22 is fixedly connected to the bottom of the pressure sensor 22, and a pressing block 23 is fixedly connected to the middle of the bottom end of the pressure sensor 22.

The fixing device 13 includes a support frame 1301, a bottom plate 1302 is fixedly connected to the bottom of the support frame 1301, an air pressure cylinder 1303 is fixedly connected to the upper surface of the inner cavity of the support frame 1301, and the bottom end of the air pressure cylinder 1303 is fixedly connected to the base plate 1302, and the air pressure The outer side of the output shaft of the cylinder 1303 is surrounded by an elastic member 1304, and the bottom of the bottom plate 1302 is provided with a rubber cushion. The plate breaks and pops out under the extrusion of the extrusion block 23, and at the same time, a buffer force is given to it by the pneumatic cylinder 1303 and the elastic member 1304, so as to prevent the impact force from being too large and causing damage to the fixing device 13 and other equipment.

Among them, the upper surface of the worktable 4 is provided with grooves, and both sides of the grooves of the worktable 4 are provided with anti-skid teeth, which is convenient to increase the friction between the worktable 4 and the concrete slab to be tested and better fix it. , preventing it from sliding and affecting the detection accuracy.

Wherein, both sides of the middle of the upper end of the base 1 are fixedly connected with a fixing block 2, and a receiving box 3 is arranged in the middle of the two fixing blocks 2. Through the receiving box 3, the concrete slab with poor quality that is broken during the compression test can be removed. The scattered concrete residues are collected, and the staff only needs to take out the receiving box 3 regularly to process the residues, which is very simple and practical.

One end of the connecting rod 10 is fixedly connected with the first screw nut 9, the other end of the connecting rod 10 is fixedly connected with the second screw nut 11, and the width of the connecting rod 10 is adapted to the sliding hole 6, when the rotating motor 7 When driving the first lead screw 8 to rotate, the first lead screw nut 9 will move up and down on the first lead screw 8 according to the rotation direction of the motor under the restriction of the sliding hole 6, and drive the fixing device 13 to rise and fall , wherein the threaded rod 12 can also fine-tune the height of the fixing device 13 to ensure that the fixing device 13 is not only suitable for concrete slabs with larger and smaller thicknesses, but also can be well fixed to ensure the fixing effect.

The slide rail 19 is movably sleeved with a lead screw nut slider 20 that is threadedly connected to the second lead screw 15 . By cooperating with the slide rail 19 in the forward and reverse directions of the servo motor 14 , the lead screw nut slider 20 can be adjusted to move left and right. , so as to realize the left and right movement of the pressure application equipment, so that the pressure application equipment can carry out the compression test on all parts of the concrete slab under the compression test. At the same time, the screw drive mechanism is arranged on the upper part of the detection equipment, and the servo motor 14 is installed outside, which not only greatly saves the space inside the detection equipment, but also facilitates the heat dissipation of the servo motor 14 and improves its working efficiency.

Working principle: When in use, improve the cooperation between the fixing device 13 and the workbench 4 to fix the concrete slab to be tested, and adjust the left and right movement of the screw nut slider 20 through the forward and reverse rotation of the servo motor 14 and the sliding rail 19. In this way, the left and right movement of the pressure-applying equipment is realized, so that the pressure-applying equipment can carry out the pressure test on all parts of the concrete slab under the anti-compression test. By analyzing each group of data, the accurate data of the compressive capacity of the concrete slab can be obtained, and the accurate test can be realized. At the same time, the screw drive mechanism is arranged on the upper part of the detection equipment, and the servo motor 14 is installed outside, which not only greatly saves the space inside the detection equipment, but also facilitates the heat dissipation of the servo motor 14 and improves its working efficiency. The box 3 can collect the concrete residue scattered around the concrete slab with poor quality that was broken during the compression test. The staff only needs to take out the receiving box 3 regularly to deal with the residue, which is very simple and practical.

It should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Meanwhile, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower" and "front" , "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outer", "clockwise", "counterclockwise", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed in a specific orientation. and operation, so it should not be construed as a limitation of the present invention. And in the drawings of the present invention, the filling pattern is only for distinguishing layers, and does not make any other limitation.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. The utility model provides a concrete compressive strength detection device, includes base (1), its characterized in that: the automatic feeding device is characterized in that fixed blocks (2) are fixedly connected to two sides of the middle of the upper end of the base (1), a receiving box (3) is arranged between the two fixed blocks (2), a workbench (4) positioned on the outer sides of the two fixed blocks (2) is fixedly connected to the upper end of the base (1), supporting plates (5) are fixedly connected to two sides of the upper end of the base (1), slide holes (6) are formed in the middle of the two supporting plates (5), a rotating motor (7) is fixedly mounted at the bottom of the outer sides of the two supporting plates (5), a first lead screw (8) is fixedly connected to an output shaft of the rotating motor (7), the first lead screw (8) is in threaded connection with a first lead screw nut (9), a connecting rod (10) is fixedly connected to one side of the first lead screw nut (9), the connecting rod (10) is movably sleeved with the slide holes (6), and a second lead screw nut (11, the second screw nut (11) is in threaded connection with the threaded rod (12), the bottom end of the threaded rod (12) is fixedly connected with a fixing device (13), a servo motor (14) is fixedly mounted on the upper portion of the outer side of each support plate (5), the output shaft end of each servo motor (14) is fixedly connected with a second screw (15), the second screws (15) penetrate through the two support plates (5), the top ends of the second screws (15) are movably sleeved with sleeve bases (16) fixedly connected with the support plates (5), the upper ends of the two support plates (5) are fixedly connected with top plates (17), the middle of the upper ends of the top plates (17) is fixedly connected with a control panel (18), the bottom of the top plates (17) is provided with slide rails (19), the slide rails (19) are movably sleeved with screw nut sliders (20) in threaded connection with the second screws (15), the bottom fixedly connected with pneumatic cylinder (21) of screw nut slider (20), the bottom fixedly connected with pressure sensor (22) of pneumatic cylinder (21), the middle part fixedly connected with extrusion piece (23) of pressure sensor (22) bottom.

2. The concrete compressive strength detection device of claim 1, wherein: fixing device (13) include support frame (1301), the bottom fixedly connected with bottom plate (1302) of support frame (1301), the last fixed surface of support frame (1301) inner chamber is connected with pneumatic cylinder (1303), the bottom and bottom plate (1302) fixed connection of pneumatic cylinder (1303), and the output shaft outside of pneumatic cylinder (1303) encircles elastic component (1304), the bottom of bottom plate (1302) is provided with the rubber cushion.

3. The concrete compressive strength detection device of claim 1, wherein: the upper surface of the workbench (4) is provided with a groove, and anti-skidding teeth are arranged on two sides of the groove of the workbench (4).

4. The concrete compressive strength detection device of claim 1, wherein: one end of the connecting rod (10) is fixedly connected with the first lead screw nut (9), one end of the other end of the connecting rod (10) is fixedly connected with the second lead screw nut (11), and the width of the connecting rod (10) is matched with the sliding hole (6).

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