Assembly type autoclaved aerated concrete product mechanical property detection device

Abstract

The utility model relates to a mechanical property detection device for an assembled autoclaved aerated concrete product, which is characterized in that a lower rolling support assembly and a lower hinge support assembly are respectively arranged at two ends above a bottom frame, the autoclaved aerated concrete product is arranged between the lower rolling support assembly and the lower hinge support assembly, two groups of upper rolling support assemblies are arranged above the product, and two groups of lower rolling support assemblies are arranged above the product. A loading cross beam is arranged between the two groups of upper rolling support assemblies; a top frame is arranged above the bottom frame, the bottom frame and the top frame are detachably connected through a vertical beam, a servo loading unit is arranged in the top frame, a piston cylinder of the servo loading unit is connected with a digital display load sensor, and the digital display load sensor abuts against the loading cross beam. According to the utility model, an assembled simple structure is adopted, the requirements of field experiments on mechanical properties of products in GB / T11968-2020 autoclaved aerated concrete blocks and structural properties in GB / T15762-2020 autoclaved aerated concrete slabs are met, and the detection equipment can be conveniently disassembled and carried to the field to carry out related experiments on mechanical properties of autoclaved aerated concrete products.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure loading equipment, in particular to an assembled autoclaved aerated concrete product mechanical property detection device. Background Art

[0002] Autoclaved aerated concrete is a lightweight porous silicate product made of siliceous materials such as sand (or fly ash, stone powder) and calcium materials such as lime, cement, gypsum as the main raw materials, with aluminum powder as the gas-generating agent, through batching, mixing, pouring, pre-curing, cutting, high temperature and high pressure curing. It mainly includes blocks, insulation blocks, plates, etc.

[0003] The mechanical properties of autoclaved aerated concrete products mainly include their structural properties, compressive strength, tensile strength, flexural strength, etc. These performance parameters determine the scope of application and effect of the material in actual engineering. GB / T11969-2020 and GB / T15762-2020 specify the test methods for the mechanical properties of autoclaved aerated concrete products. Among them, Appendix B of GB / T15762-2020 stipulates the concentrated force four-point loading method for measuring the structural properties of autoclaved aerated concrete slabs. The method standard stipulates the accuracy of the testing machine and the accuracy of the electronic displacement meter. GB / T11969-2020 stipulates the accuracy and loading speed of the pressure testing machine.

[0004] The traditional testing process requires that the autoclaved aerated concrete board samples be transported to the laboratory and loaded and tested using a pressure testing machine. For larger autoclaved aerated concrete products, due to their large size, they are not convenient to transport, so mechanical property tests must be conducted on site, but the testing equipment is also difficult to transport.

[0005] For example: Patent Publication No. CN206756589U discloses an autoclaved aerated concrete block masonry performance testing device and Patent Publication No. CN113916291B discloses an autoclaved aerated concrete slab structural performance testing device and method, both of which use the principle of concentrated force four-point loading method to carry out testing, but the testing device structure is relatively complex, large in size, and difficult to disassemble and assemble, which makes it difficult to transport the testing equipment to production enterprises or construction sites for testing. Summary of the invention

[0006] In order to solve the problem that conventional testing equipment has a complex structure and is difficult to disassemble and assemble, making it inconvenient to carry it to the site for testing, the utility model provides an assembled autoclaved aerated concrete product mechanical property testing device, which can realize the disassembly and transportation of equipment parts through the simple assembled structure, so that testing can be carried out conveniently in production enterprises or construction sites.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An assembled autoclaved aerated concrete product mechanical property testing device comprises a bottom frame, a lower rolling bearing assembly, a lower hinge bearing assembly and an upper rolling bearing assembly, a loading crossbeam, a top frame, a vertical beam, a servo loading unit and a digital display load sensor;

[0009] The lower rolling support assembly and the lower hinge support assembly are movably arranged at both ends above the base frame, the autoclaved aerated concrete product to be tested is arranged between the lower rolling support assembly and the lower hinge support assembly, two groups of the upper rolling support assemblies arranged at intervals are movably arranged above the autoclaved aerated concrete product, and the loading crossbeam is movably arranged between the two groups of upper rolling support assemblies;

[0010] The top frame is arranged above the base frame at an interval, and the base frame and the top frame are connected by the vertical beam. The upper and lower ends of the vertical beam are detachably connected to the base frame and the top frame respectively, so as to facilitate the assembly connection between the base frame and the top frame; the servo loading unit is detachably arranged in the top frame, so as to facilitate the application of load to the loading beam, and the piston cylinder of the servo loading unit extends vertically downward and is connected to the digital load sensor, and the digital load sensor is tightly against the loading beam, so as to facilitate the detection of the load applied by the servo loading unit.

[0011] Furthermore, the bottom frame and the top frame are both steel structure frames, and the cross-section of the bottom frame is larger than that of the top frame, which is convenient for accommodating larger autoclaved aerated concrete products and stably bearing them. The two side walls of the bottom frame are provided with lower mounting plate frames, and the two side walls of the top frame are provided with upper mounting plate frames, and the upper mounting plate frames and the lower mounting plate frames are arranged correspondingly up and down.

[0012] Furthermore, there are two vertical beams, which improves the reliability of the installation of the bottom frame and the top frame, and one vertical beam can be detachably arranged between the corresponding upper mounting plate frame and the lower mounting plate frame on the same side.

[0013] Furthermore, the cross-section of the upper mounting plate frame and the lower mounting plate frame is in the shape of a "U". Mounting components are provided at both ends of the vertical beam. The mounting components include a positioning plate and a connecting plate. The positioning plate is provided at the end of the vertical beam, and the positioning plate is embedded in the upper mounting plate frame and the lower mounting plate frame to facilitate rapid positioning of the installation position of the vertical beam. The connecting plates are bolted on both sides of the positioning plate, and each connecting plate is bolted to the upper mounting plate frame or the lower mounting plate frame. After positioning, the bottom frame and the top frame can be quickly assembled by bolting.

[0014] Further, the lower rolling bearing assembly comprises a steel pad, a fulcrum roller and a movable plate groove which are arranged in sequence from top to bottom, the steel pad contacts the autoclaved aerated concrete product, and the movable plate groove contacts the bottom frame;

[0015] The lower hinge support assembly includes a hinge support and a steel pad movably arranged above the hinge support, the upper rolling support assembly includes a fulcrum roller and a steel pad arranged in sequence up and down, and the loading beam is arranged on the fulcrum rollers of the two groups of upper rolling support assemblies.

[0016] Furthermore, a top plate is provided on the top frame, and the servo loading unit is bolted to the top plate to facilitate the disassembly and assembly of the servo loading unit. The servo loading unit is a servo electric cylinder, which realizes precise control of loading, and the servo loading unit is arranged vertically.

[0017] Through the above technical solution, the beneficial effects of the utility model are:

[0018] The utility model has a reasonable structural design. The bottom frame, the top frame with the servo loading unit and the vertical beam constitute the main structure of the detection device. The structure is simple. The bottom frame and the top frame can be conveniently connected and fixed by the vertical beam, and the disassembly and assembly are convenient and quick. The installation assembly at the end of the vertical beam has the characteristics of rapid positioning and bolt connection. The installation assembly cooperates with the upper mounting plate frame and the lower mounting plate frame to realize the rapid disassembly and assembly of the above main structure, so that the components of the detection device can be disassembled and transported to the production enterprise or the construction site. Through the main structure of the detection device combined with the lower rolling bearing assembly, the lower hinge bearing assembly, the upper rolling bearing assembly and the loading crossbeam, the relevant experiments on the mechanical properties of the autoclaved aerated concrete product can be carried out on site to meet the on-site inspection needs of larger autoclaved aerated concrete products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model discloses an axonometric diagram of an assembled autoclaved aerated concrete product mechanical property testing device.

[0020] Figure 2 It is a front view of an assembled autoclaved aerated concrete product mechanical property testing device of the utility model.

[0021] Figure 3 The utility model is a side view of an assembled autoclaved aerated concrete product mechanical property testing device.

[0022] Figure 4 The utility model is a schematic diagram of a vertical beam separation state of an assembled autoclaved aerated concrete product mechanical property testing device.

[0023] Figure 5 The utility model is a schematic diagram of a vertical beam and a mounting assembly of an assembled autoclaved aerated concrete product mechanical property testing device.

[0024] The numbers in the accompanying drawings are: 1 base frame, 101 long beam, 102 short beam, 2 lower rolling bearing assembly, 3 lower hinge bearing assembly, 4 upper rolling bearing assembly, 5 loading beam, 6 top frame, 7 vertical beam, 8 servo loading unit, 9 digital load sensor, 10 movable plate slot, 11 autoclaved aerated concrete product, 12 upper mounting plate frame, 13 lower mounting plate frame, 14 mounting assembly, 141 positioning plate, 142 connecting plate, 15 top plate. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings:

[0026] like Figure 1~Figure 5 As shown, an assembled autoclaved aerated concrete product mechanical properties testing device includes a base frame 1, a lower rolling bearing assembly 2, a lower hinge bearing assembly 3 and an upper rolling bearing assembly 4, a loading beam 5, a top frame 6, a vertical beam 7, a servo loading unit 8 and a digital load sensor 9. The above components are installed and fixed by an assembled structure, which can realize the disassembly and transportation of the entire device, and can be used in production enterprises or construction sites to carry out related experiments on the mechanical properties of autoclaved aerated concrete products 11.

[0027] The base frame 1 is a steel structure frame, and the base frame 1 has a certain length, which can be understood as a rectangular steel structure frame. The base frame 1 includes two long beams 101 and a short beam 102 arranged at intervals, and the long beam 101 and the short beam 102 are both rectangular tube structures. The length of the long beam 101 is much greater than the short beam 102. The two long beams 101 are connected and fixed by two short beams 102. The short beam 102 is perpendicular to the long beam 101 and is arranged in the center.

[0028] The lower rolling bearing assembly 2 and the lower hinge bearing assembly 3 are movably arranged at both ends above the bottom frame 1. The lower rolling bearing assembly 2 includes a steel pad, a fulcrum roller and a movable plate groove 10 arranged in sequence from top to bottom. The steel pad contacts the autoclaved aerated concrete product 11. The movable plate groove 10 is a long plate with a groove on the upper plane, which can be used to limit the rolling of the fulcrum roller. The movable plate groove 10 contacts the bottom frame 1. The lower hinge bearing assembly 3 includes a hinge support and a steel pad movably arranged above the hinge support.

[0029] An autoclaved aerated concrete product 11 is arranged between the lower rolling bearing assembly 2 and the lower hinge bearing assembly 3. Two groups of upper rolling bearing assemblies 4 arranged at intervals are movably arranged above the autoclaved aerated concrete product 11. The two groups of upper rolling bearing assemblies 4 are arranged in the center.

[0030] Each set of upper rolling bearing assemblies 4 includes a fulcrum roller and a steel pad arranged in sequence up and down. A loading beam 5 is movably arranged between the two sets of upper rolling bearing assemblies 4, that is, the loading beam 5 is arranged on the fulcrum rollers of the two sets of upper rolling bearing assemblies 4. The lower rolling bearing assembly 2, the lower hinge bearing assembly 3, the upper rolling bearing assembly 4 and the loading beam 5 are all prior art, and the relevant structure has been disclosed in Appendix B of GB / T15762-2020, which will not be repeated here.

[0031] A top frame 6 is arranged above the bottom frame 1, and the top frame 6 and the bottom frame 1 are kept parallel to each other and have a certain distance. The top frame 6 is also a steel structure frame, and the cross section of the top frame 6 is a "mouth" shape formed by assembling and welding a plurality of rectangular tubes, and the cross section of the bottom frame 1 is larger than that of the top frame 6.

[0032] In order to achieve the connection and fixation between the bottom frame 1 and the top frame 6, the bottom frame 1 and the top frame 6 are connected by vertical beams 7. There are two vertical beams 7, and the upper and lower ends of each vertical beam 7 are detachably connected to the bottom frame 1 and the top frame 6 respectively. In this way, the bottom frame 1 and the top frame 6 can be disassembled and assembled, avoiding the integrated structure of the detection device, and realizing the disassembly and transportation of the detection device.

[0033] In order to facilitate the connection and installation of the vertical beam 7, a lower mounting plate frame 13 is provided on both side walls of the bottom frame 1, and an upper mounting plate frame 12 is provided on both side walls of the top frame 6, and the upper mounting plate frame 12 and the lower mounting plate frame 13 are arranged correspondingly up and down. The upper mounting plate frame 12 and the lower mounting plate frame 13 have the same structure, and the cross-sections of the upper mounting plate frame 12 and the lower mounting plate frame 13 are in the shape of a "U".

[0034] A vertical beam 7 is detachably arranged between the upper mounting plate frame 12 and the lower mounting plate frame 13 corresponding to the same side. The vertical beam 7 is also a rectangular tube structure. To facilitate the connection between the vertical beam 7 and the upper mounting plate frame 12 and the lower mounting plate frame 13, mounting components 14 are arranged at both ends of the vertical beam 7. The mounting components 14 include a positioning plate 141 and a connecting plate 142. A positioning plate 141 is arranged at the end of the vertical beam 7. The positioning plate 141 is a rectangular plate. Connecting plates 142 are bolted to both sides of the positioning plate 141. Each connecting plate 142 is connected to the positioning plate 141 by two bolts. After the two connecting plates 142 and one positioning plate 141 are connected and assembled, the cross section is in a "]" shape.

[0035] When the vertical beam 7 is installed, the mounting assembly 14 at the end of the vertical beam 7 is respectively connected to the upper mounting plate frame 12 and the lower mounting plate frame 13. Specifically, the positioning plate 141 of the mounting assembly 14 is embedded in the upper mounting plate frame 12 and the lower mounting plate frame 13 to achieve positioning during installation. At the same time, each connecting plate 142 is bolted to the upper mounting plate frame 12 or the lower mounting plate frame 13. Two bolts can be used here, thereby connecting and fixing the bottom frame 1 and the top frame 6 to form a solid whole.

[0036] The top frame 6 is provided with a servo loading unit 8 detachably. When the servo loading unit 8 is installed, a top plate 15 is provided on the top frame 6, and the servo loading unit 8 is bolted to the top plate 15. The servo loading unit 8 is a servo electric cylinder, and the servo loading unit 8 is arranged vertically. When in use, the servo loading unit 8 is connected to a power supply and a controller, which can realize power supply to the servo loading unit 8 and control its operation.

[0037] The piston cylinder of the servo loading unit 8 extends vertically downward, passes through the top plate 15, and is connected to a digital load sensor 9. The digital load sensor 9 is tightly against the loading beam 5. The digital load sensor 9 has a digital display function and can monitor the load value of the servo loading unit 8 and display it in real time.

[0038] The base frame 1 and the lower mounting plate frame 13 of the utility model are pre-welded to form a whole. The top frame 6, the upper mounting plate frame 12 and the top plate 15 are pre-welded to form a whole, and the servo loading unit 8 with a digital load sensor 9 is bolted to the top frame 6. The vertical beam 7 and the positioning plate 141 are welded, and the connecting plates 142 are bolted to the two sides of the positioning plate 141 to form a whole. The remaining lower rolling bearing assembly 2, the lower hinge bearing assembly 3, the upper rolling bearing assembly 4 and the loading beam 5 are separate parts. The bolt connection used in the entire detection device can also be replaced by a pin connection, which uses a pin to achieve installation and fixation between parts, and also has the effect of convenient disassembly and assembly.

[0039] The utility model uses the vertical beam 7 and related structures to realize convenient disassembly and assembly of the top frame 6 and the bottom frame 1, and the remaining components can be easily taken and used, which facilitates the disassembly and assembly of the entire detection device, and then the detection device can be disassembled and transported to the production enterprise or construction site, and relevant experiments on mechanical properties can be carried out on site. It is suitable for on-site inspection of larger autoclaved aerated concrete products 11. For the specific inspection process, please refer to the relevant provisions in Appendix B of GB / T15762-2020.

[0040] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. An assembled autoclaved aerated concrete product mechanical properties testing device, characterized in that: It comprises a bottom frame (1), a lower rolling bearing assembly (2), a lower hinge bearing assembly (3), an upper rolling bearing assembly (4), a loading crossbeam (5), a top frame (6), a vertical beam (7), a servo loading unit (8) and a digital load sensor (9); The lower rolling bearing assembly (2) and the lower hinge bearing assembly (3) are movably arranged at the two ends above the base frame (1); an autoclaved aerated concrete product (11) is arranged between the lower rolling bearing assembly (2) and the lower hinge bearing assembly (3); two groups of upper rolling bearing assemblies (4) arranged at intervals are movably arranged above the autoclaved aerated concrete product (11); and the loading crossbeam (5) is movably arranged between the two groups of upper rolling bearing assemblies (4); The top frame (6) is arranged above the bottom frame (1) at a distance, and the bottom frame (1) and the top frame (6) are connected via the vertical beam (7), and the upper and lower ends of the vertical beam (7) are detachably connected to the bottom frame (1) and the top frame (6) respectively; the servo loading unit (8) is detachably arranged in the top frame (6), and the piston cylinder of the servo loading unit (8) extends vertically downward and is connected to the digital load sensor (9), and the digital load sensor (9) is tightly against the loading cross beam (5).

2. The assembled autoclaved aerated concrete product mechanical properties testing device according to claim 1, characterized in that: The bottom frame (1) and the top frame (6) are both steel structure frames, the cross section of the bottom frame (1) is larger than the cross section of the top frame (6), the two side walls of the bottom frame (1) are provided with lower mounting plate frames (13), and the two side walls of the top frame (6) are provided with upper mounting plate frames (12), and the upper mounting plate frames (12) and the lower mounting plate frames (13) are arranged in correspondence with each other up and down.

3. The assembled autoclaved aerated concrete product mechanical properties testing device according to claim 2, characterized in that: The number of the vertical beams (7) is two, and one vertical beam (7) is detachably arranged between the corresponding upper mounting plate frame (12) and lower mounting plate frame (13) on the same side.

4. The assembled autoclaved aerated concrete product mechanical properties testing device according to claim 3, characterized in that: The cross-sections of the upper mounting plate frame (12) and the lower mounting plate frame (13) are in the shape of a "U". Mounting components (14) are provided at both ends of the vertical beam (7). The mounting components (14) include a positioning plate (141) and a connecting plate (142). The positioning plate (141) is provided at the end of the vertical beam (7). The positioning plate (141) is embedded in the upper mounting plate frame (12) and the lower mounting plate frame (13). The connecting plates (142) are bolted to both sides of the positioning plate (141). Each connecting plate (142) is bolted to the upper mounting plate frame (12) or the lower mounting plate frame (13).

5. The assembled autoclaved aerated concrete product mechanical properties testing device according to claim 1, characterized in that: The lower rolling bearing assembly (2) comprises a steel pad, a fulcrum roller and a movable plate groove (10) arranged in sequence from top to bottom, the steel pad contacts the autoclaved aerated concrete product (11), and the movable plate groove (10) contacts the bottom frame (1); The lower hinge support assembly (3) comprises a hinge support and a steel pad movably arranged above the hinge support, the upper rolling support assembly (4) comprises a fulcrum roller and a steel pad arranged in sequence up and down, and the loading crossbeam (5) is arranged on the fulcrum rollers of the two groups of upper rolling support assemblies (4).

6. The assembled autoclaved aerated concrete product mechanical properties testing device according to claim 1, characterized in that: A top plate (15) is provided on the top frame (6), and the servo loading unit (8) is bolted to the top plate (15). The servo loading unit (8) is a servo electric cylinder, and the servo loading unit (8) is arranged vertically.

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