Horizontal mechanical property testing equipment

Abstract

According to the horizontal mechanical property test equipment disclosed by the invention, the loading assembly and the drawing clamp assembly which are distributed at an interval along the first horizontal direction are arranged on the supporting base, so that the tensile property test or the compressive property test of a test piece can be realized; the two bending support assemblies which are distributed at intervals along the second horizontal direction are arranged on the support base, so that the displacement of the test piece in the second horizontal direction can be limited by the bending support assemblies; the bending support assembly can apply an acting force opposite to a loading force of the loading assembly to other parts of the test piece to realize bending of the test piece, so that a bending resistance test is carried out, and the horizontal mechanical property test equipment has the advantages of convenience in transportation, wide application scene, low safety risk, high production efficiency and the like.

Description

Technical Field

[0001] This application relates to the technical field of mechanical property testing, and particularly to a horizontal mechanical property testing device. Background Art

[0002] Existing mechanical testing devices are mostly gantry or vertical structures, but they have the defects of difficult transportation, limited application scenarios, high safety risks, and low production efficiency. Summary of the Invention

[0003] This application provides a horizontal mechanical property testing device, aiming to solve at least one of the above-mentioned defects of difficult transportation, limited application scenarios, high safety risks, and low production efficiency, and achieve at least one of the advantages of convenient transportation, wide application scenarios, low safety risks, and high production efficiency.

[0004] Embodiments of this application can be implemented as follows:

[0005] In a first aspect, the present invention provides a horizontal mechanical property testing device, including a support base and a loading assembly, a drawing fixture assembly, and a bending support assembly disposed on the support base;

[0006] The loading assembly and the drawing fixture assembly are spaced apart along a first horizontal direction, the loading assembly and the drawing fixture assembly are respectively used to connect both ends of a tensile-compressive test piece, and the loading assembly can pull or push the tensile-compressive test piece along the first horizontal direction;

[0007] Two bending support assemblies are spaced apart along a second horizontal direction, the two bending support assemblies are used to limit the displacement of a bending test piece in the first horizontal direction, and the loading assembly can also be connected to the bending test piece to push-bend or pull-bend the bending test piece;

[0008] Wherein, the first horizontal direction and the second horizontal direction are perpendicular.

[0009] In an optional embodiment, the connection between the loading assembly and the drawing fixture assembly intersects the connection line between the two bending support assemblies.

[0010] In an optional embodiment, the support base includes a main ladder frame and side ladder frames respectively connected to both sides of the main ladder frame, the length direction of the main ladder frame is along the first horizontal direction, and the length direction of the side ladder frame is along the second horizontal direction;

[0011] The loading assembly and the drawing fixture assembly are installed on the main ladder frame;

[0012] Two bending support assemblies are respectively installed on the two side ladder frames.

[0013] In an alternative embodiment, the main ladder frame includes two first main beams extending along the first horizontal direction and a plurality of first cross beams connected between the two first main beams; the loading assembly and the drawing fixture assembly are connected to the first main beams;

[0014] and / or,

[0015] The side ladder frame includes two second main beams extending along the second horizontal direction and a plurality of second cross beams connected between the two second main beams through a first web plate. A first web plate is fixed between the second cross beam and the second main beam, and one end of the second main beam is connected to the main ladder frame through a first connecting web plate; the bending support assembly is connected to the second main beam;

[0016] and / or,

[0017] A plurality of diagonal bracing beams are connected between the main ladder frame and the side ladder frame through a second connecting web plate.

[0018] In an alternative embodiment, both the loading assembly and the drawing fixture assembly include a triangular support frame, and the loading assembly further includes a hydraulic cylinder;

[0019] The triangular support frame includes a bottom frame, a reinforcing rod and a fixing plate;

[0020] The bottom frame is installed on the support base;

[0021] The fixing plate is vertically connected to the bottom frame, and the fixing plate is connected to the bottom frame through the reinforcing rod;

[0022] The fixing plate is used for installing the hydraulic cylinder or the loading fixture.

[0023] In an alternative embodiment, the triangular support frame further includes a back plate, the back plate is fixed on one side of the fixing plate, and a plurality of threaded holes for connecting the loading fixture or the hydraulic cylinder are provided on the back plate.

[0024] In an alternative embodiment, the top edges of the back plate and the fixing plate are pressed against each other through a plurality of snap rings;

[0025] and / or,

[0026] A reinforcing cross tube is provided on the side of the bottom of the back plate facing away from the fixing plate, and a plurality of fasteners are fixed on the bottom frame, and the fasteners are buckled on the reinforcing cross tube.

[0027] In an alternative embodiment, the loading assembly further includes a pressure head, a movable support frame, and a tension rope sensor. The pressure head is connected to the piston rod of the hydraulic cylinder. The movable support frame is connected to the support base. The pressure head is in sliding or rolling cooperation with the movable support frame. The tension rope sensor is used to detect the displacement change of the pressure head. The pressure head is provided with a plurality of threaded holes for connecting loading jigs.

[0028] In an alternative embodiment, the piston rod of the hydraulic cylinder is connected with a roller through a support plate, and the roller is in rolling cooperation with the movable support frame. Wherein, the support plate has a wavy arc-shaped opening to be adapted to the outer peripheral wall of the piston rod of the hydraulic cylinder;

[0029] Or,

[0030] A slide rail is provided on the movable support frame, the piston rod is connected with a carriage, and the carriage is provided with a slider that is in sliding cooperation with the slide rail.

[0031] In an alternative embodiment, the pulling fixture assembly further includes a rubber pad provided on the bottom frame. The rubber pad is located on one side of the fixed plate close to the loading assembly, and there is a gap between the rubber pad and the fixed plate in the first horizontal direction;

[0032] And / or,

[0033] The pulling fixture assembly further includes a reinforcing frame, and the reinforcing frame is connected to the support base and the fixed plate.

[0034] In an alternative embodiment, the bending support assembly can adjust its own position along the second horizontal direction above the support base.

[0035] In an alternative embodiment, the bending support assembly includes a right-angle support seat, and the right-angle support seat includes a side plate, a connecting beam, and a sliding frame;

[0036] The sliding frame is in sliding cooperation with the support bottom frame so as to be able to slide along the second horizontal direction;

[0037] The side plate is vertically connected to the sliding frame and is used to block the bending test piece along the direction opposite to the loading force direction of the loading assembly;

[0038] A plurality of the connecting beams are connected between the sliding frame and the side plate.

[0039] In an alternative embodiment, the bending support assembly further includes a baffle connected to the side plate and capable of changing its position in the vertical direction. The baffle is used to limit the vertical displacement of the bending test piece.

[0040] In an alternative embodiment, the horizontal mechanical property testing device further includes auxiliary support frames, which are mounted on the support base and are spaced apart along the second horizontal direction. The height of the auxiliary support frames is adjustable to support the bending test piece.

[0041] In an alternative embodiment, the tensile-compressive test piece is a straight pipe, and the loading fixture includes support columns, and two support columns are respectively embedded in the inner peripheral walls at both ends of the straight pipe; the loading assembly and the pulling fixture assembly are respectively fixedly connected to the two support columns;

[0042] Or,

[0043] The tensile-compressive test piece is a bent pipe, and the loading fixture includes hoops, and two hoops are sleeved on the outer peripheral walls at both ends of the bent pipe; the loading assembly and the pulling fixture are respectively hinged to the two hoops through connecting rods;

[0044] Or,

[0045] The tensile-compressive test piece is a T-shaped pipe, and the loading fixture includes hoops and a support column. Two hoops are sleeved on the outer peripheral walls of the two side pipes of the T-shaped pipe, and one support column is embedded in the inner peripheral wall of the main pipe of the T-shaped pipe. The loading fixture is fixedly connected to the support column, and the pulling fixture assembly is respectively hinged to the two hoops through two connecting rods. Among them, a cushion block is installed on the support base, and the cushion block is located between the loading assembly and the pulling fixture assembly for bearing the T-shaped pipe.

[0046] Compared with the prior art, the beneficial effects of the embodiments of the present application include, for example:

[0047] By providing a loading assembly and a pulling fixture assembly that are spaced apart along the first horizontal direction on the support base, the tensile property test or compressive property test of the test piece can be realized. By providing two bending support assemblies that are spaced apart along the second horizontal direction on the support base, the displacement of the test piece in the second horizontal direction can be restricted by relying on these bending support assemblies. When the loading assembly applies a local load to the test piece, the bending support assemblies can apply a force opposite to the loading force of the loading assembly to other parts of the test piece to realize the bending of the test piece, so as to perform the bending property test. In this way, the tensile, compressive, and bending property test requirements of large test pieces can be realized through one equipment housing, and the test range and application scenarios are wider; and because the test piece is tested lying down, the height space required by the equipment is small and the safety risk is small; in addition, the bending support assemblies, the loading assembly, the pulling fixture assembly, and the support base can be separately manufactured and then assembled, the production efficiency is higher, and at the same time, after being disassembled, they are transported separately, with low space requirements and more convenient transportation. Description of the Drawings

[0048] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0049] Figure 1 Schematic diagram of the straight pipe tensile or compressive test for the horizontal mechanical property test equipment in the embodiment of the present application;

[0050] Figure 2 is Figure 1 Schematic diagram of the middle support base;

[0051] Figure 3 is Figure 2 Exploded schematic diagram of;

[0052] Figure 4 is Figure 1 Schematic diagram of the drawing fixture assembly in;

[0053] Figure 5 is Figure 4 Exploded schematic diagram of;

[0054] Figure 6 is Figure 1 One of the schematic diagrams of the loading assembly in;

[0055] Figure 7 is Figure 1 Another schematic diagram of the loading assembly in;

[0056] Figure 8 One of the schematic diagrams of the loading assembly in another embodiment;

[0057] Figure 9 Another schematic diagram of the loading assembly in another embodiment;

[0058] Figure 10 is Figure 8 Schematic diagram after hiding the hydraulic cylinder;

[0059] Figure 11 is Figure 1 One of the partial schematic diagrams of;

[0060] Figure 12 is Figure 1 Another partial schematic diagram of;

[0061] Figure 13 is Figure 1 Schematic diagram of the connection between the straight pipe and the loading fixture in;

[0062] Figure 14Figure 13 Cross-sectional view B-B;

[0063] Figure 15 Schematic diagram of tensile or compressive test of bent pipe by the horizontal mechanical property test equipment of the embodiment of the present application;

[0064] Figure 16 Schematic diagram of tensile or compressive test of T-shaped pipe by the horizontal mechanical property test equipment of the embodiment of the present application;

[0065] Figure 17 is Figure 16 Schematic diagram of the connection between the T-shaped pipe and the loading fixture in

[0066] Figure 18 is Figure 17 Cross-sectional view A-A;

[0067] Figure 19 Schematic diagram of the bending resistance test of straight pipe by the horizontal mechanical property test equipment of the embodiment of the present application.

[0068] Icon: 100 - support base; 110 - main ladder frame; 111 - first main beam; 112 - first cross beam; 120 - side ladder frame; 121 - second main beam; 122 - second cross beam; 123 - first web; 130 - diagonal support beam; 140 - first connecting web; 150 - second connecting web; 160 - cushion block; 200 - loading assembly; 210 - hydraulic cylinder; 220 - pressure head; 230 - movable support frame; 231 - slide rail; 240 - tensile rope sensor; 250 - roller; 251 - support plate; 252 - wavy arc-shaped opening; 260 - carriage; 300 - drawing fixture assembly; 310 - rubber pad; 400 - bending support assembly; 410 - sliding frame; 420 - side plate; 430 - connecting beam; 440 - baffle; 441 - arc surface; 450 - second web; 500 - triangular support frame; 510 - bottom frame; 520 - reinforcing bar; 530 - fixing plate; 540 - reinforcing web; 550 - snap ring; 560 - reinforcing cross pipe; 570 - fastener; 580 - diagonal tension rod; 590 - reinforcing plate; 600 - auxiliary support frame; 700 - straight pipe; 710 - bent pipe; 720 - T-shaped pipe; 800 - support column; 810 - hoop; 820 - semi-circular hoop; 830 - connecting rod; 840 - fastener; 900 - man-machine interaction platform; X - first horizontal direction; Y - second horizontal direction. Detailed implementation manners

[0069] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Components of the embodiments of this application usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0070] Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0071] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0072] In the description of this application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0073] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0074] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0075] Most existing mechanical testing equipment is of gantry or vertical structure, but there are disadvantages in the testing technology:

[0076] 1. High space requirements and difficult transportation: Generally, large-scale mechanical testing machines (vertical or gantry type) are transported in an integrated manner, which has strict requirements on the space of transportation tools (vehicles, aircraft, ships, etc.) and roads. In addition to the large weight of the single unit, the overall height size is not easy to install, and there are also strict requirements on the vertical space.

[0077] 2. The test scope is narrow and the application scenarios are limited: Currently, traditional mechanical testing equipment is mainly used to test more common experimental parts. There are fewer testing equipment for large-scale engineering applications. The fixed structure is difficult to quickly adjust the size or function, and needs to be redesigned to adapt to new testing requirements. The scalability is poor, and the integral structure is difficult to move, making it difficult to adapt to flexible testing requirements.

[0078] 3. Increased safety risks: The use and installation of the equipment requires a large height space, high requirements for laboratory or factory floor height, and strict requirements for ground load-bearing capacity. The larger the span, the worse the rigidity, and the inconvenient maintenance.

[0079] 4. Low production efficiency. The traditional mechanical testing equipment structure has a complex process flow during preparation, because the integral structure increases the risk in production and the equipment is difficult to circulate during processing.

[0080] In response to the above-mentioned defects, the inventors have provided a horizontal mechanical properties testing equipment after research. It is in the form of a horizontal frame and is assembled through the modularization of a polygonal structure to meet different testing requirements, thereby improving the flexibility and convenience of the testing equipment during installation and testing. In addition to being more operational in experimental areas with limited height, the advantages of modularization facilitate loading and unloading, transportation, and reduce installation and transportation time. If the frequency of use is not high, it can be disassembled and stored at any time, and the space utilization is more flexible.

[0081] Moreover, the horizontal structure is more stable, with less vibration and high test accuracy. Modular assembly improves flexibility and convenience, reduces installation time, the polygonal frame structure enhances overall rigidity, prolongs equipment life, and modular components are easier to replace, reducing maintenance costs.

[0082] Therefore, this application breaks through the vertical space limitation and rigidity bottleneck of the traditional gantry (vertical), and realizes the concept of "flexible test platform" through geometric optimization and modular design. The test equipment structure can effectively solve the problems existing in the generation, installation, transportation and expansion of the traditional test equipment structure, improve production efficiency, save time and cost.

[0083] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0084] refer toFigure 1 , an embodiment of the present application discloses a horizontal mechanical property testing device, which includes a support base 100 and a loading assembly 200, a drawing fixture assembly 300, and a bending support assembly 400 disposed on the support base 100;

[0085] The loading assembly 200 and the drawing fixture assembly 300 are spaced apart along the first horizontal direction X. The loading assembly 200 and the drawing fixture assembly 300 are respectively used to connect the two ends of the tensile and compressive test piece. The loading assembly 200 can pull or push the tensile and compressive test piece along the first horizontal direction X;

[0086] The two bending support assemblies 400 are spaced apart along the second horizontal direction Y. The two bending support assemblies 400 are used to limit the displacement of the bending test piece in the first horizontal direction X. The loading assembly 200 can also be connected to the bending test piece to push-bend or pull-bend the bending test piece;

[0087] Wherein, the first horizontal direction X and the second horizontal direction Y are perpendicular.

[0088] In this embodiment, by providing the loading assembly 200 and the drawing fixture assembly 300 spaced apart along the first horizontal direction X on the support base 100, the tensile property test or compressive property test of the test piece can be realized. By providing the two bending support assemblies 400 spaced apart along the second horizontal direction Y on the support base 100, these bending support assemblies 400 can be relied on to limit the displacement of the test piece in the second horizontal direction Y. When the loading assembly 200 applies a local load to the test piece, the bending support assembly 400 can apply an acting force opposite to the loading force of the loading assembly 200 to other parts of the test piece to realize the bending of the test piece, so as to conduct the bending resistance performance test. In this way, the tensile, compressive, and bending resistance performance test requirements of large test pieces can be realized through one equipment housing, and the test range and application scenarios are wider; moreover, because the test piece is tested lying down, the height space required by the equipment is small and the safety risk is small; in addition, the bending support assembly 400, the loading assembly 200, the drawing fixture assembly 300, and the support base 100 can be separately manufactured and then assembled, the production efficiency is higher, and at the same time, after being disassembled, they are transported separately, with low space requirements and more convenient transportation.

[0089] Specifically, the distribution pattern of the loading assembly 200, the drawing fixture assembly 300, and the bending support assembly 400 above the support base 100 can be such that the connection between the loading assembly 200 and the drawing fixture assembly 300 intersects the line connecting the two bending support assemblies 400. In this way, the two bending support assemblies 400 are located between the drawing fixture assembly 300 and the loading assembly 200 in the first horizontal direction X, and the drawing fixture assembly 300 and the loading assembly 200 are located between the two bending support assemblies 400 in the second horizontal direction Y, presenting an overall distribution at the four corners of a quadrilateral. In this way, the floor area occupied by the support base 100 is smaller, and the loading assembly 200 only needs a loading method with two degrees of freedom of extending or retracting towards the drawing fixture assembly 300. When performing the bending resistance test, the test piece is placed between the drawing fixture assembly 300 and the loading assembly 200, and the two bending support assemblies 400 restrict the displacement at both ends of the test piece. The loading assembly 200 is connected to the middle part of the test piece to perform push-bending or pull-bending, which has a lower cost.

[0090] Specifically, referring to Figure 2 and Figure 3 , the support base 100 includes a main ladder frame 110 and side ladder frames 120 respectively connected to both sides of the main ladder frame 110. The length direction of the main ladder frame 110 is along the first horizontal direction X, and the length direction of the side ladder frame 120 is along the second horizontal direction Y; the loading assembly 200 and the drawing fixture assembly 300 are installed on the main ladder frame 110; the two bending support assemblies 400 are respectively installed on the two side ladder frames 120.

[0091] Among them, the main ladder frame 110 includes two first main beams 111 extending along the first horizontal direction X and a plurality of first cross beams 112 connected between the two first main beams 111; the loading assembly 200 and the drawing fixture assembly 300 are connected to the first main beams 111. The first main beams 111 can adopt a segmented structure, which is more convenient for sub-packaging and transportation. During use, the two segments are connected and fixed.

[0092] The side ladder frame 120 includes two second main beams 121 extending along the second horizontal direction Y and a plurality of second cross beams 122 connected between the two second main beams 121 through a first web 123. A first web 123 is fixed between the second cross beam 122 and the second main beam 121. One end of the second main beam 121 is connected to the main ladder frame 110 through a first connecting web 140; the bending support assembly 400 is connected to the second main beam 121.

[0093] A plurality of diagonal braces 130 are connected between the main ladder frame 110 and the side ladder frame 120 through the second connecting web 150. The diagonal braces 130 can improve the connection strength between the main ladder frame 110 and the side ladder frame 120, thereby improving the strength of the support base 100 as a whole. The first main beam 111, the second main beam 121, and the first cross beam 112 can be made of I-beams, and the second cross beam 122 can be made of square tubes. Each web can locally strengthen the connection between each beam body to ensure that the polygon support base 100 skeleton does not deform when testing large experimental parts.

[0094] Reference Figures 4 to 6 , both the loading assembly 200 and the pulling fixture assembly 300 include a triangular support frame 500 to serve as the carrier for the tensile and compressive test pieces; the loading assembly 200 further includes a hydraulic cylinder 210 to serve as the source of the loading force.

[0095] The triangular support frame 500 includes a bottom frame 510, a reinforcing rod 520, and a fixing plate 530; the bottom frame 510 is installed on the support base 100; the fixing plate 530 is vertically connected to the bottom frame 510; the fixing plate 530 is vertically connected to the bottom frame 510, and both sides of the fixing plate 530 are connected to the bottom frame 510 through the reinforcing rod 520, and the reinforcing rod 520 plays a role in improving the connection strength between the bottom frame 510 and the fixing plate 530; the fixing plate 530 is used for installing the hydraulic cylinder 210 or the loading fixture.

[0096] Among them, it can be understood that in order to ensure that the triangular support frame 500 does not deform when testing large experimental parts, any two of the bottom beam, the reinforcing rod 520, and the fixing plate 530 are fixed through the reinforcing web 540.

[0097] Continue to refer to Figure 4 and Figure 5 , in order to facilitate the installation of the loading fixture and the hydraulic cylinder 210, and at the same time to facilitate the replacement of different fixtures for different test pieces, the triangular support frame 500 further includes a back plate, the back plate is fixed on one side of the fixing plate 530, and a plurality of threaded holes for connecting the loading fixture or the hydraulic cylinder 210 are provided on the back plate, and different types of loading fixtures can be installed / replaced to meet different test requirements; for example, a loading fixture with a curvature can be replaced for round tube testing; a square C-shaped loading fixture can be replaced for square tube testing, etc.

[0098] In order to realize the connection and fixation between the back plate and the fixing plate 530, the top edges of the back plate and the fixing plate 530 are pressed against each other through a plurality of snap rings 550; a reinforcing cross tube 560 is provided on the side of the bottom of the back plate facing away from the fixing plate 530, and a plurality of fasteners 570 are fixed on the bottom frame 510, and the fasteners 570 are buckled on the reinforcing cross tube 560, and at the same time, the reinforcing cross tube 560 also plays a role in improving the strength of the triangular support frame 500.

[0099] The drawing fixture assembly 300 further includes a rubber pad 310 disposed on the bottom frame 510. The rubber pad 310 is located on one side of the fixing plate 530 close to the loading assembly 200, and there is a gap between the rubber pad 310 and the fixing plate 530 in the first horizontal direction X. The rubber pad 310 can protect the test piece from directly and rigidly contacting the bottom frame 510.

[0100] The triangular support frame 500 further includes a strengthening frame. The strengthening frame is connected to the support base 100 and the fixing plate 530, thereby further improving the strength. The strengthening frame specifically includes an inclined pull rod 580 and a triangular strengthening plate 590. One end of the inclined pull rod 580 is connected to the fixing plate 530, and the other end is connected to the first main beam 111 of the support base 100. The strengthening plate 590 is connected to the inclined pull rod 580, the fixing plate 530, and the first main beam 111 of the support base.

[0101] Reference Figure 6 and Figure 7 , the loading assembly 200 further includes a pressure head 220, a movable support frame 230, and a tensile rope sensor 240. The pressure head 220 is connected to the piston rod of the hydraulic cylinder 210. The movable support frame 230 is connected to the support base 100. The pressure head 220 is provided with a plurality of threaded holes for connecting loading fixtures, and different types of loading fixtures can be installed / replaced to meet different test requirements; the pressure head 220 is in sliding or rolling fit with the movable support frame 230, so that the pressure head 220 is supported by the movable support frame 230 to ensure the balance and stability of the pressure head 220 during the movement process. The tensile rope sensor 240 is used to detect the displacement change amount of the pressure head 220, thereby determining the loading force of the hydraulic cylinder 210 on the test piece, and further facilitating the determination of the mechanical properties of the test piece.

[0102] Specifically, Figure 6 and Figure 7 in, the piston rod of the hydraulic cylinder 210 is connected with a roller 250 through a support plate 251. The roller 250 is in rolling fit with the movable support frame 230 to reduce the friction force. Among them, the support plate 251 has a wavy arc-shaped opening 252 to be adapted to the outer peripheral wall of the piston rod of the hydraulic cylinder 210, so as to support the piston rod and further support the pressure head 220.

[0103] In another embodiment, reference Figures 8 to 10 , a slide rail 231 is provided on the movable support frame 230. The piston rod is connected with a slide frame 260. The slide frame 260 is installed with a slider in sliding fit with the slide rail 231, which can also reduce the friction force.

[0104] Optionally, the bending support assembly 400 can adjust its position along the second horizontal direction Y above the support base 100, so that the distance between the two bending support assemblies 400 can be adjusted according to the length dimension of the test piece, ensuring that the bending support assembly 400 can contact the test piece.

[0105] Specifically, referring to Figure 11 and Figure 12 , the bending support assembly 400 includes a right-angle support seat, which includes a side plate 420, a connecting beam 430, and a sliding frame 410;

[0106] The sliding frame 410 is slidably engaged with the support base 100 to be able to slide along the second horizontal direction Y; specifically, two sets of sliding sleeves of the sliding frame 410 are on the second main beam 121, and a part of the second main beam 121 serves as a guide rail to guide the sliding direction of the sliding frame 410.

[0107] The side plate 420 is vertically connected to the sliding frame 410 and is used to block the bending test piece along the direction opposite to the loading force direction of the loading assembly 200; a plurality of connecting beams 430 are connected between the sliding frame 410 and the side plate 420. For example, in the illustrated figure, in the first horizontal direction X, the connecting beam 430 is located on the side of the side plate 420 away from the loading assembly 200. In this way, the test piece is located between the side plate 420 and the hydraulic cylinder 210. When the hydraulic cylinder 210 extends, the middle part of the test piece is pushed by the hydraulic cylinder 210 towards the pulling fixture assembly 300, while the side plate 420 contacts both ends of the test piece to apply a force in the direction opposite to the loading force to the test piece. In this way, the test piece can be bent, and the bending resistance performance test can be carried out. Of course, in some embodiments not shown, the connecting beam 430 can also be connected to the side of the side plate 420 close to the loading assembly 200, so that the test piece is located on the side of the side plate 420 away from the hydraulic cylinder 210, and the test piece can be bent when the hydraulic cylinder 210 retracts.

[0108] The bending support assembly 400 further includes a baffle 440 connected to the side plate 420 and capable of changing its position in the vertical direction. The baffle 440 is used to limit the vertical displacement of the bending test piece. For example, a plurality of threaded holes can be provided on the side plate 420, and the height adjustment can be achieved by connecting the baffle 440 to the threaded holes at different heights, so as to adapt to the outer diameter size of the test piece. The baffle 440 has a curved surface 441 to fit the outer wall shape of the test piece to be subjected to the bending resistance test. In Figure 11 and Figure 12 's embodiments, the baffle 440 can be installed on the upper part of the side plate 420, and one of its side surfaces forms a curved surface 441.

[0109] Among them, there is a second web 450 between any two of the side plate 420, the sliding frame 410, and the connecting beam 430 to improve the strength.

[0110] In addition, the horizontal mechanical property testing device further includes an auxiliary support frame 600. The auxiliary support frame 600 is installed on the support base 100 and is spaced along the second horizontal direction Y. The height of the auxiliary support frame 600 can be adjusted to support the bending test piece, preventing friction between the test piece and the support base 100 during the test and affecting the test results.

[0111] For example, the auxiliary support frame 600 includes a scissor lift, which is lifted and lowered by compressed air.

[0112] The following is an example of the testing of several test pieces:

[0113] 1. Tensile or compressive test of the straight pipe 700:

[0114] Referring to Figure 1 、 Figure 13 and Figure 14 , the tensile and compressive test piece is the straight pipe 700. The loading fixture includes support columns 800. The two support columns 800 are respectively embedded in the inner peripheral walls at both ends of the straight pipe 700. For example, the peripheral wall of the straight pipe 700 and the support columns 800 are connected and fixed by inserting multiple fasteners 840 along the radial direction; the fasteners 840 can be pins. The loading assembly 200 and the pulling fixture assembly 300 are respectively fixedly connected to the two support columns 800 through connecting rods 830; wherein, the support columns 800 can be sleeve-shaped structures with one end open and the other end closed, and its open end faces the inside of the straight pipe 700.

[0115] 2. Tensile or compressive test of the bent pipe 710:

[0116] Referring to Figure 15 , the tensile and compressive test piece is the bent pipe 710. The loading fixture includes clamps 810. The two clamps 810 are sleeved on the outer peripheral walls at both ends of the bent pipe 710; the loading assembly 200 and the pulling fixture are respectively hinged to the two clamps 810 through connecting rods 830.

[0117] 3. Tensile or compressive test of the T-shaped pipe 720:

[0118] Referring to Figures 16 to 18 , the tensile and compressive test piece is the T-shaped pipe 720. The loading fixture includes clamps 810 and support columns 800. The two clamps 810 are sleeved on the outer peripheral walls of the two side pipes of the T-shaped pipe 720, and one support column 800 is embedded in the inner peripheral wall of the main pipe of the T-shaped pipe 720. The loading fixture is connected and fixed to the support column 800. The pulling fixture assembly 300 is respectively hinged to the two clamps 810 through two connecting rods 830. Among them, a cushion block 160 is installed on the support base 100, and the cushion block 160 is located between the loading assembly 200 and the pulling fixture assembly 300 for bearing the T-shaped pipe 720. Among them, the support column 800 can be a sleeve-shaped structure with one end open and the other end closed, and its open end faces the inside of the T-shaped pipe 720.

[0119] In addition, in the Figure 16 embodiment, the baffle 440 may be constructed with an arc-shaped plate to increase the width in the second horizontal direction Y and at the same time increase the radian, so as to increase the contact area with the bending test piece, improve the limit stability, and at the same time reduce the local stress on the bending test piece.

[0120] 4. Bending resistance test of the straight pipe 700:

[0121] Referring to Figure 19 , the bending test piece is a straight pipe 700, the loading fixture is a half-moon hoop 820, the opening faces the pulling fixture assembly 300, and the half-moon hoop 820 is connected to the indenter 220.

[0122] It should also be noted that for the convenience of operation and observation of test data, the horizontal mechanical property testing equipment further includes a human-machine interaction platform 900.

[0123] In summary, the horizontal mechanical property testing equipment disclosed in the embodiments of the present application breaks through the vertical space limitation and rigidity bottleneck of the traditional gantry (vertical type), and realizes the concept of a "flexible testing platform" through geometric optimization and modular design. The structure of the testing equipment can effectively solve the problems existing in the structure generation, installation, transportation, and expansion of the traditional testing equipment, improve production efficiency, and save time and costs.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A horizontal mechanical property testing device, characterized in that It includes a support base (100), and a loading assembly (200), a drawing fixture assembly (300), and a bending support assembly (400) arranged above the support base (100); The loading assembly (200) and the drawing fixture assembly (300) are spaced apart along a first horizontal direction (X). The loading assembly (200) and the drawing fixture assembly (300) are respectively used to connect the two ends of a tensile-compressive test piece. The loading assembly (200) can pull or push the tensile-compressive test piece along the first horizontal direction (X); The two bending support assemblies (400) are spaced apart along a second horizontal direction (Y). The two bending support assemblies (400) are used to limit the displacement of a bending test piece in the first horizontal direction (X). The loading assembly (200) can also be connected to the bending test piece to push-bend or pull-bend the bending test piece; Wherein, the first horizontal direction (X) and the second horizontal direction (Y) are perpendicular.

2. The horizontal mechanical property testing device according to claim 1, wherein The connection between the loading assembly (200) and the drawing fixture assembly (300) intersects with the connection line between the two bending support assemblies (400).

3. The horizontal mechanical property testing device according to claim 2, wherein, The support base (100) includes a main ladder frame (110) and side ladder frames (120) respectively connected to both sides of the main ladder frame (110). The length direction of the main ladder frame (110) is along the first horizontal direction (X), and the length direction of the side ladder frames (120) is along the second horizontal direction (Y); The loading assembly (200) and the drawing fixture assembly (300) are installed on the main ladder frame (110); The two bending support assemblies (400) are respectively installed on the two side ladder frames (120).

4. The horizontal mechanical property testing device according to claim 3, characterized in that The main ladder frame (110) includes two first main beams (111) extending along the first horizontal direction (X) and a plurality of first cross beams (112) connected between the two first main beams (111); the loading assembly (200) and the drawing fixture assembly (300) are connected to the first main beams (111); And / or, The side ladder frame (120) includes two second main beams (121) extending along the second horizontal direction (Y) and a plurality of second cross beams (122) connected between the two second main beams (121) through a first web plate (123). A first web plate (123) is fixed between the second cross beam (122) and the second main beam (121). One end of the second main beam (121) is connected to the main ladder frame (110) through a first connecting web plate (140); the bending support assembly (400) is connected to the second main beam (121); And / or, A plurality of diagonal support beams (130) are connected between the main ladder frame (110) and the side ladder frame (120) through a second connecting web plate (150).

5. The horizontal mechanical property testing device according to claim 1, characterized in that, Both the loading assembly (200) and the drawing fixture assembly (300) include a triangular support frame (500), and the loading assembly (200) further includes a hydraulic cylinder (210); The triangular support frame (500) includes a bottom frame (510), a reinforcing rod (520), and a fixing plate (530); The bottom frame (510) is installed on the support base (100); The fixing plate (530) is vertically connected to the bottom frame (510), and the fixing plate (530) is connected to the bottom frame (510) through the reinforcing rod (520); The fixing plate (530) is used for installing the hydraulic cylinder (210) or the loading fixture.

6. The horizontal mechanical property testing device according to claim 5, characterized in that, The triangular support frame (500) further includes a back plate, the back plate is fixed on one side of the fixing plate (530), and a plurality of threaded holes for connecting the loading fixture or the hydraulic cylinder (210) are provided on the back plate.

7. The horizontal mechanical property testing device according to claim 6, characterized in that, The top edges of the back plate and the fixing plate (530) are pressed against each other through a plurality of snap rings (550); and / or, A reinforcing cross tube (560) is provided on the side of the bottom of the back plate facing away from the fixing plate (530), and a plurality of fasteners (570) are fixed on the bottom frame (510), and the fasteners (570) are buckled on the reinforcing cross tube (560).

8. The horizontal mechanical property testing device according to claim 5, characterized in that, The loading assembly (200) further includes a pressure head (220), a movable support frame (230), and a tension rope sensor (240). The pressure head (220) is connected to the piston rod of the hydraulic cylinder (210), the movable support frame (230) is connected to the support base (100), the pressure head (220) is in sliding or rolling fit with the movable support frame (230), the tension rope sensor (240) is used to detect the displacement change amount of the pressure head (220), and a plurality of threaded holes for connecting the loading fixture are provided on the pressure head (220).

9. The horizontal mechanical property testing device according to claim 8, wherein, The piston rod of the hydraulic cylinder (210) is connected with a roller (250) through a support plate (251), and the roller (250) is in rolling fit with the movable support frame (230). Among them, the support plate (251) has a wavy arc-shaped opening (252) to be adapted to the outer peripheral wall of the piston rod of the hydraulic cylinder (210); or, A slide rail (231) is provided on the movable support frame (230), the piston rod is connected with a slide carriage (260), and the slide carriage (260) is equipped with a slider that is in sliding fit with the slide rail (231).

10. The horizontal mechanical property testing device according to claim 5, characterized in that, The drawing fixture assembly (300) further includes a rubber pad (310) provided on the bottom frame (510). The rubber pad (310) is located on the side of the fixing plate (530) close to the loading assembly (200), and a gap is left between the rubber pad (310) and the fixing plate (530) in the first horizontal direction (X); and / or, The drawing fixture assembly (300) further includes a reinforcing frame, and the reinforcing frame is connected to the support base (100) and the fixing plate (530).

11. The horizontal mechanical property testing device according to claim 1, characterized in that, The bending support assembly (400) can adjust its own position along the second horizontal direction (Y) above the support base (100).

12. The horizontal mechanical property testing device according to claim 11, characterized in that, The bending support assembly (400) includes a right-angle support base, and the right-angle support base includes a side plate (420), a connecting beam (430), and a sliding frame (410); The sliding frame (410) is slidably engaged with the support base (100) so as to be able to slide along the second horizontal direction (Y); The side plate (420) is vertically connected to the sliding frame (410) and is used to block the bending test piece along a direction opposite to the loading force direction of the loading assembly (200); A plurality of the connecting beams (430) are connected between the sliding frame (410) and the side plate (420).

13. The horizontal mechanical property testing device according to claim 12, characterized in that, The bending support assembly (400) further includes a baffle (440) connected to the side plate (420) and capable of changing its position in the vertical direction, and the baffle (440) is used to limit the vertical displacement of the bending test piece.

14. The horizontal mechanical property testing device according to claim 1, characterized in that, The horizontal mechanical property testing device further includes an auxiliary support frame (600). The auxiliary support frame (600) is installed on the support base (100) and is spaced along the second horizontal direction (Y). The height of the auxiliary support frame (600) can be adjusted to support the bending test piece.

15. The horizontal mechanical property testing device according to claim 1, characterized in that, The tension-compression test piece is a straight pipe (700), and the loading fixture includes support columns (800). Two support columns (800) are respectively embedded in the inner peripheral walls at both ends of the straight pipe (700); the loading assembly (200) and the pulling fixture assembly (300) are respectively fixedly connected to the two support columns (800); Or, The tension-compression test piece is a bent pipe (710), and the loading fixture includes hoop clamps (810). Two hoop clamps (810) are sleeved on the outer peripheral walls at both ends of the bent pipe (710); the loading assembly (200) and the pulling fixture are respectively hinged to the two hoop clamps (810) through connecting rods (830); Or, The tension-compression test piece is a T-shaped pipe (720), and the loading fixture includes hoop clamps (810) and support columns (800). Two hoop clamps (810) are sleeved on the outer peripheral walls of the two side pipes of the T-shaped pipe (720), and one support column (800) is embedded in the inner peripheral wall of the main pipe of the T-shaped pipe (720). The loading fixture is fixedly connected to the support column (800), and the pulling fixture assembly (300) is respectively hinged to the two hoop clamps (810) through two connecting rods (830). Among them, a cushion block (160) is installed on the support base (100), and the cushion block (160) is located between the loading assembly (200) and the pulling fixture assembly (300) and is used to carry the T-shaped pipe (720).

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