A high-efficiency performance detection device for construction engineering materials

Abstract

The invention relates to the technical field of construction engineering, and discloses a high-efficiency performance detection device for construction engineering materials, comprising steel, a first reduction mechanism and a driving motor, outer sides of two of the first reduction mechanisms are provided with outer transmission rods in a circular array, an intermediate transmission rod is provided at the axis position of the first reduction mechanism, a plurality of the outer transmission rods are threadedly connected with three groups of clamping blocks, and the transmission distance ratio of the outer transmission rod to the three groups of clamping blocks is 1:2:3, a plurality of groups of support plates are threadedly connected with the intermediate transmission rod, and the transmission distance ratio of the intermediate transmission rod to each group of support plates is 1:2:3. In this scheme, by arranging clamping blocks and supporting plates matched therewith inside and outside the steel, the occurrence of excessive deformation of hollow steel caused by clamping is reduced, and at the same time, a plurality of evenly distributed steels are arranged to reduce the spacing between the steels, segment the tensile force, reduce the deformation of the edge position of a single clamping mechanism, and improve the detection accuracy.

Description

Technical Field

[0001] The invention relates to the field of construction engineering, and in particular to a high-efficiency performance detection device for construction engineering materials. Background Art

[0002] Among building structural materials, steel bars are an important component, and the performance of steel bars directly affects the applicability and safety of the structure. Therefore, steel bars need to undergo necessary performance tests before being used in engineering construction, and tensile testing of steel is one of them. Steel is divided into I-beams and square steels.

[0003] Existing steel tensile tests are mostly conducted using tensile testing machines, and steel tensile testing machines mostly use two clamping mechanisms to clamp the two ends of the steel, and then use an external hydraulic mechanism to drive the clamping mechanism to achieve stretching of the steel between the clamping mechanisms. However, the method of clamping with two clamping mechanisms has the following problems: 1. The clamping mechanisms at both ends require a large clamping force when clamping hollow square steel, otherwise sliding is likely to occur during the pulling process, affecting the clamping and pulling effect. At the same time, the clamping mechanism will cause a large deformation at the end of the steel, affecting the judgment of the final test results; 2. Since the clamping position is close to the end, during the pulling process, the deformation near the clamping mechanism will be greater than that in the middle position, which will cause a large deviation in the measured data results during the subsequent detection process, and cannot well reflect the actual stretching degree of the steel after being pulled.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there is a defect in that the clamping method at both ends of the existing steel tensile testing machine will affect the accuracy of the final test results. Summary of the invention

[0005] In order to solve the above-mentioned problems, the present invention provides a high-efficiency performance detection device for construction engineering materials.

[0006] The invention provides a high-efficiency performance detection device for construction engineering materials using the following technical solutions:

[0007] A high-efficiency performance detection device for construction engineering materials, including a hollow square steel, first reduction mechanisms are provided on the outer sides of both ends of the steel, and drive motors are bolted and fixedly connected to the outer walls of the two first reduction mechanisms, and a transmission guide rail for transmitting the position of the first reduction mechanism is provided below the first reduction mechanism, outer ring arrays are provided on the outer sides of the two first reduction mechanisms, and the outer transmission rods and the first reduction mechanisms are connected by a transmission structure, an intermediate transmission rod is provided at the axis position of the first reduction mechanism, and the first reduction mechanism and the intermediate transmission rod are connected by a second reduction mechanism, and the intermediate transmission rod and the outer transmission rod rotate synchronously in the same direction, three groups of clamping blocks are evenly spaced and threadedly connected on multiple outer transmission rods, and the transmission distance ratio of the outer transmission rod to the three groups of clamping blocks is 1:2:3, multiple groups of support plates are evenly spaced and threadedly connected on the intermediate transmission rods, and the transmission distance ratio of the intermediate transmission rod to each group of support plates is 1:2:3, and each group of support plates and each group of clamping blocks matched therewith are displaced synchronously.

[0008] Preferably, the outer transmission rod and the intermediate transmission rod are provided with a first thread groove, a second thread groove, and a third thread groove in sequence from the middle position of the steel material to the outside, and the pitch ratio of the first thread groove, the second thread groove, and the third thread groove is 1:2:3.

[0009] Preferably, the top of the clamping block is vertically fixedly connected to the first hydraulic cylinder, and the fixed ends of the first hydraulic cylinder are fixedly connected to threaded sleeves, and each of the clamping blocks is threadedly connected to the threaded groove on the external transmission rod through its corresponding threaded sleeve.

[0010] Preferably, a sliding block is provided on the inner side of each group of support plates, and the support plates are transmission-connected to the sliding blocks via second hydraulic cylinders, and each of the second hydraulic cylinders is arranged perpendicular to the axis of the sliding block and the end surface of the support plate.

[0011] Preferably, a limiting rod is vertically fixedly connected to the outer wall of the second speed reduction mechanism, and the limiting rod is slidably connected to each sliding block to limit the sliding block in radial direction.

[0012] Preferably, the clamping block is in a V-shaped structure with a hollow bottom, which facilitates the external measuring mechanism to move from the outer wall of the steel material and conveniently detects the thickness of each position of the steel material.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects:

[0014] By arranging uniformly distributed clamping blocks on the outside of the steel and arranging support plates corresponding to the clamping blocks inside the steel, the support plates and the clamping blocks cooperate with each other to reduce the occurrence of excessive deformation of the hollow steel during clamping, and at the same time, a number of uniformly distributed steels are arranged to reduce the spacing between the steels, and the tensile force is segmented, thereby reducing the deformation of the edge position of a single clamping mechanism, thereby improving the measurement accuracy during subsequent inspections; by opening the first thread groove, the second thread groove and the third thread groove at equal distances on the outer transmission rod and the intermediate transmission rod, and the pitch ratio of the first thread groove, the second thread groove and the third thread groove is 1:2:3, the tensile distance of the steel by each clamping mechanism is the same, thereby achieving the setting of a control group under the same tension, and then the test data can be quickly and conveniently analyzed, thereby further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an isometric structural schematic diagram of an embodiment of the invention.

[0016] Figure 2 It is a schematic diagram of the structure of the clamping mechanism of an embodiment of the invention.

[0017] Figure 3 It is a schematic diagram of the structure of the inner support mechanism of an embodiment of the invention.

[0018] Explanation of the accompanying drawings: 1. Steel; 2. First reduction mechanism; 3. Driving motor; 4. Transmission guide rail; 5. Second reduction mechanism; 6. External transmission rod; 601. First thread groove; 602. Second thread groove; 603. Third thread groove; 7. First hydraulic cylinder; 8. Clamping block; 9. Threaded sleeve; 10. Transmission structure; 11. Limiting rod; 12. Intermediate transmission rod; 13. Sliding block; 14. Support plate; 15. Second hydraulic cylinder. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-3 The present invention is described in further detail.

[0020] The embodiment of the present invention discloses a high-efficiency performance detection device for construction engineering materials. Figure 1-3, a high-efficiency performance detection device for construction engineering materials, including a hollow square steel 1, a first reduction mechanism 2 is arranged on the outer side of both ends of the steel 1, and the preferred first reduction mechanism 2 can adopt a planetary gear structure, and the planetary gear structure is used to reduce the speed of the drive motor 3, thereby increasing the torque, and the outer walls of the two first reduction mechanisms 2 are bolted and fixedly connected with the drive motor 3, and a transmission guide rail 4 for transmitting the position of the first reduction mechanism 2 is arranged below the first reduction mechanism 2, and the transmission guide rail 4 is preferably matched with an external drive mechanism, and the external drive mechanism driving device slides horizontally on the transmission guide rail 4 to achieve docking with the steel 1, and the outer sides of the two first reduction mechanisms 2 are provided with external transmission rods 6 in a circular array, and the external transmission rod 6 and the first The reduction mechanisms 2 are connected through a transmission structure 10. The preferred transmission structure 10 includes a chain and two gear plates. One of the two gear plates is coaxially fixedly connected to the gear plate in the first reduction mechanism 2, and the other is fixedly connected to one end of the outer transmission rod 6. The chain is wound around the two gear plates. A limiting mechanism for limiting the first hydraulic cylinders 7 is provided on the outer side of the first reduction mechanism 2 to ensure that the clamping block 8 will not rotate synchronously with the outer transmission rod 6 during rotation, thereby ensuring the axial displacement of the clamping block 8 in the outer transmission rod 6. An intermediate transmission rod 12 is provided at the axial position of the first reduction mechanism 2, and the first reduction mechanism 2 and the intermediate transmission rod 12 are connected through the second reduction mechanism 5, and the intermediate transmission rod 12 and the outer The transmission rod 6 rotates synchronously in the same direction, and three groups of clamping blocks 8 are evenly spaced and threadedly connected on multiple outer transmission rods 6, and the transmission distance ratio of the outer transmission rod 6 to the three groups of clamping blocks 8 is 1:2:3. Multiple groups of support plates 14 are evenly spaced and threadedly connected on the intermediate transmission rod 12, and the transmission distance ratio of the intermediate transmission rod 12 to each group of support plates 14 is 1:2:3. Each group of support plates 14 and each group of clamping blocks 8 matched therewith are displaced synchronously. Preferably, the number of each group of clamping blocks 8 and support plates 14 can be changed according to actual needs, so as to ensure a good clamping effect on tubular steels 1 of different shapes. The first thread groove 601, the second thread groove 602, the third thread groove 603 are sequentially arranged on the outer transmission rod 6 and the intermediate transmission rod 12 from the middle position of the steel 1 to the outside. 03, and the pitch ratio of the first thread groove 601, the second thread groove 602, and the third thread groove 603 is 1:2:3. The preferred number of thread grooves can be selected according to actual needs, and the thread groove pitch gradually increases from the end away from the first reduction mechanism 2 to the end close to the first reduction mechanism 2, and the ratio is 1:2:3:4:……, when the number of thread grooves increases, the number of corresponding clamping blocks 8 and support plates 14 also increases accordingly, the top of the clamping block 8 is vertically fixedly connected to the first hydraulic cylinder 7, and the fixed ends of the first hydraulic cylinder 7 are fixedly connected to the threaded sleeves 9, and each clamping block 8 is respectively threadedly connected to the thread groove on the outer transmission rod 6 through its corresponding threaded sleeve 9, and a sliding block 13 is arranged on the inner side of each group of support plates 14,The support plate 14 is connected to the sliding block 13 through the transmission between the second hydraulic cylinder 15, and each second hydraulic cylinder 15 is arranged perpendicular to the axis of the sliding block 13 and the end face of the support plate 14. The outer wall of the second reduction mechanism 5 is vertically fixed with a limit rod 11, and the limit rod 11 is slidably connected to each sliding block 13 to limit the radial position of the sliding block 13. The clamping block 8 is V-shaped, and its bottom is hollow, which is convenient for the external measuring mechanism to move from the outer wall of the steel 1, and the thickness of each position of the steel 1 is conveniently detected.

[0021] The implementation principle of an efficient performance detection device for construction materials in an embodiment of the present invention is as follows: first, a steel material 1 is placed on a workstation to be tested, and an external transmission mechanism cooperates with a transmission guide rail 4 to realize transmission of two clamping mechanisms to the middle position of the steel material 1. The two outermost clamping blocks 8 of the two clamping mechanisms are arranged close to each other, and a first hydraulic cylinder 7 drives the clamping block 8 to move downward so that the clamping block 8 and the outer wall of the steel material 1 are arranged in close contact. At the same time, a support plate 14 inserted into the inner side of the steel material 1 moves outward under the drive of a second hydraulic cylinder 15, and cooperates with the clamping block 8 to clamp the steel material 1. Since multiple clamping blocks 8 and support plates 14 are provided, the steel material 1 is divided into multiple sections for clamping. When performing a tensile test, two drive motors 3 are started to rotate synchronously, and the drive motor 3 drives the first reduction mechanism 2 to rotate. Each output end of the first reduction mechanism 2 is driven by a second hydraulic cylinder 15. The transmission structure 10 realizes transmission to the external transmission rod 6, and transmits the intermediate transmission rod 12 to rotate synchronously through the second reduction mechanism 5. The rotation speed of the external transmission rod 6 and the intermediate transmission rod 12 is the same, so the thread grooves on the external transmission rod 6 and the intermediate transmission rod 12 have the same transmission effect on each threaded sleeve 9 and the corresponding sliding block 13. Since the pitch ratio between the first thread groove 601, the second thread groove 602, and the third thread groove 603 is 1:2:3, when the number of rotations is the same, the distance ratio of the three transmissions is 1:2:3, thereby achieving a displacement distance ratio of 1:1:1 between two adjacent clamping blocks 8, ensuring that each clamping block 8 and the support plate 14 can cooperate to stretch the corresponding section of the steel 1, reduce the occurrence of excessive local deformation of the steel 1 when the steel 1 is subjected to external tension as a whole, and improve the practicality of the device.

[0022] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency performance detection device for construction engineering materials, comprising a hollow square steel material (1), wherein first reduction mechanisms (2) are arranged on the outer sides of both ends of the steel material (1), and drive motors (3) are bolted to the outer walls of the two first reduction mechanisms (2), and a transmission guide rail (4) is arranged below the first reduction mechanism (2) to transmit the position thereof, characterized in that: The outer sides of the two first reduction mechanisms (2) are both provided with outer transmission rods (6) in a circular array, and the outer transmission rods (6) and the first reduction mechanism (2) are transmission-connected via a transmission structure (10); an intermediate transmission rod (12) is provided at the axial position of the first reduction mechanism (2), and the first reduction mechanism (2) and the intermediate transmission rod (12) are transmission-connected via a second reduction mechanism (5); the intermediate transmission rod (12) and the outer transmission rod (6) rotate synchronously in the same direction; three groups of clamping blocks (8) are evenly spaced and threadedly connected on the plurality of outer transmission rods (6); and the transmission distance ratio of the outer transmission rod (6) to the three groups of clamping blocks (8) is 1:2:3; a plurality of groups of support plates (14) are evenly spaced and threadedly connected on the intermediate transmission rod (12); and the transmission distance ratio of the intermediate transmission rod (12) to each group of support plates (14) is 1:2:3; and each group of the support plates (14) and each group of clamping blocks (8) matched therewith are displaced synchronously; The outer transmission rod (6) and the intermediate transmission rod (12) are provided with a first thread groove (601), a second thread groove (602), and a third thread groove (603) in sequence from the middle position of the steel material (1) to the outside, and the pitch ratio of the first thread groove (601), the second thread groove (602), and the third thread groove (603) is 1:2:

3.

2. The high-efficiency performance detection device for construction materials according to claim 1, characterized in that: The top of the clamping block (8) is vertically fixedly connected to the first hydraulic cylinder (7), and the fixed ends of the first hydraulic cylinder (7) are fixedly connected to threaded sleeves (9), and each of the clamping blocks (8) is threadedly connected to a threaded groove on the outer transmission rod (6) through its corresponding threaded sleeve (9).

3. The high-efficiency performance detection device for construction materials according to claim 2, characterized in that: A sliding block (13) is arranged on the inner side of each group of the support plates (14), and the support plates (14) are connected to the sliding blocks (13) by transmission via a second hydraulic cylinder (15), and each of the second hydraulic cylinders (15) is arranged perpendicular to the axis of the sliding block (13) and the end surface of the support plate (14).

4. The high-efficiency performance detection device for construction materials according to claim 3 is characterized by: A limiting rod (11) is vertically fixedly connected to the outer wall of the second speed reduction mechanism (5), and the limiting rod (11) and each sliding block (13) are slidably connected to limit the sliding block (13) in the radial direction.

5. The high-efficiency performance detection device for construction materials according to claim 1, characterized in that: The clamping block (8) is in a V-shaped structure, and its bottom is hollow, so that the external measuring mechanism can be easily displaced from the outer wall of the steel material (1) to conveniently detect the thickness of each position of the steel material (1).

Images