A heavy rail for fixing a mechanical test loading stand or device

Abstract

The application discloses a heavy rail for fixing a mechanical test loading support or equipment, comprising an H-shaped steel, a sliding block, a fastening bolt, a gasket, a nut, a hook-shaped anchoring steel bar, a U-shaped steel bar, a horizontal steel bar, an H-shaped steel connecting plate and concrete; the concrete is a rail base body, and the H-shaped steel, the hook-shaped anchoring steel bar, the U-shaped steel bar, the horizontal steel bar and the H-shaped steel connecting plate form steel components prearranged in the concrete. The application is a kind of underground pre-buried T-shaped rail specially used for bearing heavy load. The rail adopts a European standard H-shaped steel, combines with special steel component forms, and has high anti-pulling capacity and good economic efficiency. The rail can be mainly used for fixing a heavy test loading device, has strong application expansibility compared with other forms of rail structures, and is convenient for popularization and use in the industry.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of large-size structural mechanics test equipment, and particularly relates to a heavy rail for fixing a mechanics test loading support or equipment. BACKGROUND

[0002] Wind power blades are key components of wind turbine energy conversion, and the cost accounts for about 20% of the total cost of the unit. However, the failure rate is high, and more than 50% of the failures are due to serious defects in the design or process of the blades. Type test of new type blades or technical improvement blades is an effective measure to avoid design risks, which has formed a consensus in the industry. According to industry statistics, as of 2021, there are 13 wind power blade detection laboratories and 21 large-scale structural mechanics laboratories in the aerospace field in China. These laboratories need stable ground rail devices to fix the loading equipment or loading support during static strength test, fatigue strength test and related calibration work. The safety and stability of the ground rail as the final reaction unit of the whole test system directly affect the smooth execution of the test process and the accuracy and reliability of the test data.

[0003] Most of the large-size structural mechanics laboratories in China use traditional channel steel opposed, steel plate welded into box type or rail steel T type structure. For small load (less than 500kN), although there are differences in construction cost among these track structure forms, by increasing the size of the key structure, the load requirement can be basically met. But for heavy load (not less than 500kN), if the traditional structure is still used, the cost of the rail will be greatly increased, and the volume of the rail foundation will be very large, which is not friendly to the laboratory with limited civil space. SUMMARY

[0004] In view of the technical problems existing in the above-mentioned existing rail design, the purpose of the present application is to provide a heavy rail for fixing a mechanics test loading support or equipment.

[0005] To achieve the above-mentioned purpose, the technical solutions provided by the present application are as follows:

[0006] A heavy rail for fixing a mechanics test loading support or equipment, comprising an H-shaped steel, a sliding block, a fastening bolt, a gasket, a nut, a hooked anchor steel bar, a U-shaped steel bar, a horizontal steel bar, an H-shaped steel connecting plate and concrete.

[0007] The concrete is a track base, the H-shaped steel is two, two H-shaped steels are laid in the middle and side by side along the length direction of the concrete base, the lower ends of the two H-shaped steels are connected through a connecting steel plate arranged along the length direction of the track, the lower end faces of the two H-shaped steels are provided with a plurality of U-shaped steels along the length direction of the track, and the two ends of any U-shaped steel are connected with the lower end faces of the two H-shaped steels, respectively, and each U-shaped steel is connected with a horizontal steel arranged transversely on the two side walls; a plurality of hook-shaped anchoring steels are connected to the left upper end of the H-shaped steel on the left side and the right upper end of the H-shaped steel on the right side along the length direction of the track; the sliding block is located in the cavity surrounded by the two H-shaped steels, and the position thereof is adjustable; the fastening bolt passes through the sliding block, the upper end of the two H-shaped steels, the loading support or the equipment in sequence from the lower end, and is threadedly connected with the nut, the upper end face of the sliding block is in contact with the two H-shaped steels; the H-shaped steel, the hook-shaped anchoring steel, the U-shaped steel, the horizontal steel, and the H-shaped steel connecting plate constitute a steel member prearranged in the concrete.

[0008] The gasket is sleeved on the fastening bolt between the nut and the loading support or the equipment.

[0009] The upper part and the lower part of the concrete are respectively provided with a ground reinforcing mesh and a bottom reinforcing mesh arranged transversely.

[0010] The upper end face of the sliding block is provided with a groove along the length direction of the track.

[0011] The H-shaped steel is selected from the HEM series of European standards.

[0012] The position of the sliding block along the length direction of the track is changed according to the fixed position requirement of the loading support or the equipment, the nut is loosened before the position is changed, and the nut is tightened after the position is changed.

[0013] The heavy track is two or more tracks laid in parallel.

[0014] The length of the sliding block along the track direction and the number of bolts connected thereto are determined according to the load capacity requirement.

[0015] The U-shaped steel and the horizontal steel are adjusted in type and arrangement density according to the load capacity requirement.

[0016] The thickness of the concrete is adjusted according to the load capacity requirement and the size of the steel member part.

[0017] Compared with the prior art, the beneficial effects of the present application are that the present application is a kind of underground pre-buried T-shaped track specially used for bearing heavy load, which adopts European standard H-shaped steel, combined with special form of reinforcing member, to form a track structure with higher uplift resistance and better economy. The track can be mainly used for fixing heavy test loading device, and has strong application expansion compared with other forms of track structure, which is convenient for popularization and use in industry. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of heavy track in the embodiments of the present application;

[0019] Figure 2 It is a schematic diagram of heavy track and loading support or equipment installation structure provided by the embodiments of the present application;

[0020] In the figure, H-shaped steel 1, sliding block 2, fastening bolt 3, gasket 4, nut 5, hook-shaped anchoring steel bar 6, U-shaped steel bar 7, horizontal steel bar 8, ground reinforcing mesh 9, bottom reinforcing mesh 10, H-shaped steel connecting plate 11, concrete 12, loading support or equipment 13. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting”, “setting” should be understood broadly, for example, can be fixedly connected, set, or can be detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meanings of the above terms in the present patent can be understood according to the specific circumstances.

[0024] Figure 1 The diagram shows a structural embodiment of the present invention. Figure 2 This is a schematic diagram of the heavy-duty track and loading bracket or equipment installation structure provided in the embodiments of this application.

[0025] like Figures 1-2 As shown, this embodiment provides a heavy-duty track for fixing a mechanical test loading bracket or equipment, including H-beam 1, slider 2, fastening bolt 3, washer 4, nut 5, hook-shaped anchoring steel bar 6, U-shaped steel bar 7, horizontal steel bar 8, H-beam connecting plate 11, and concrete 12.

[0026] The concrete 12 serves as the track base. Two H-beams 1 are laid side-by-side along the length of the concrete 12 base, spaced apart. The lower ends of the two H-beams 1 are connected by connecting steel plates 11 arranged along the track length. Multiple U-shaped reinforcing bars 7 are spaced apart on the lower surfaces of the two H-beams 1 along the track length, with each U-shaped reinforcing bar 7 having both ends connected to the lower surfaces of the two H-beams 1. Each U-shaped reinforcing bar 7 has a horizontally arranged reinforcing bar 8 connected to both sides of its two sides. The H-beam 1 on the left side... Multiple hook-shaped anchoring steel bars 6 are connected at intervals along the length of the track on the upper right side of the H-beam 1 on the left and right sides respectively; the slider 2 is located in the cavity enclosed by the two H-beams 1 and its position is adjustable; the fastening bolt 3 passes through the slider 2, the upper interval of the two H-beams 1, the loading bracket or equipment from the lower end and is threaded to the nut 5, and the upper end face of the slider 2 is in contact with the two H-beams 1; the H-beam 1, hook-shaped anchoring steel bars 6, U-shaped steel bars 7, horizontal steel bars 8, and H-beam connecting plate 11 form a steel component pre-placed in concrete.

[0027] In a preferred embodiment, a washer 4 is fitted onto the fastening bolt 3 between the nut 5 and the loading bracket or device.

[0028] In a preferred embodiment, the upper and lower parts of the concrete 12 are respectively provided with a ground reinforcing mesh 9 and a bottom reinforcing mesh 10.

[0029] In a preferred embodiment, the upper end face of the slider 2 is provided with a groove along the length of the track. This can improve the load-bearing capacity of the slider and reduce the friction encountered by the slider when sliding in the track.

[0030] In a preferred embodiment, the H-beam 1 is selected from the European standard HEM series. The HEM series has a more reasonable size ratio, which facilitates the construction of a box-shaped structure with better stability. The specific grade is selected according to the load it bears.

[0031] It should be noted that the slider 2 changes its position along the length of the track according to the fixed position requirement of the loading support or device 13, and the nut 5 needs to be loosened before the position is changed, and the nut 5 is tightened after the position is changed.

[0032] It should be noted that the heavy track can be laid in parallel with two or more tracks according to actual use needs.

[0033] It should be noted that the length of the slider 2 along the track direction and the number of bolts 3 connected thereon are determined according to the load capacity requirement, and the bolt tightening torque is selected according to the nut coefficient.

[0034] It should be noted that the U-shaped steel bar 7 and the horizontal steel bar 8 are adjusted in size and arrangement density according to the load capacity requirement. The hook-shaped steel bar 6 can be adjusted in length, steel bar size and arrangement density according to the load capacity requirement.

[0035] It should be noted that the thickness of the concrete 12 is adjusted according to the load capacity requirement and the size of the steel member part.

[0036] It should be noted that along the length of the track, the two H-shaped steels 1 and the connecting steel plate 11 form a box-shaped structure, and the connecting steel plate 11 closes the lower ends of the two H-shaped steels 1 at intervals to prevent the concrete from entering the sliding space of the slider 3 during the concrete pouring process.

[0037] It should be noted that the upper surface of the H-shaped steel 1 is consistent with or slightly higher (2mm) than the height of the concrete floor. The hook-shaped steel bar, the U-shaped steel bar and the horizontal steel bar provide the steel structure with uplift resistance, and the upper and lower reinforcement mesh improves the stability of the overall structure of the track.

[0038] It should be noted that the U-shaped steel bar 7 is connected to the H-shaped steel in the form of a bevel weld, and the outer size can be adjusted according to the selection of the H-shaped steel.

[0039] Among them, the hook-shaped anchoring steel bar 6 can adjust the welding angle on the H-shaped steel and the length and angle of the hook according to the load requirement.

[0040] It should be noted that the spacing between the track H-shaped steels can be increased by 10mm based on the diameter of the bolt.

[0041] It should be noted that the width of the slider is 10mm smaller than the distance of the web of the H-shaped steel.

[0042] In the preferred embodiment, the steel member wrapped by the concrete needs to be coated with wear-resistant anti-rust paint to improve the service life.

[0043] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A heavy rail for securing a mechanical testing load stand or apparatus, characterised in that, The steel structure comprises an H-shaped steel (1), a sliding block (2), a fastening bolt (3), a gasket (4), a nut (5), a hooked anchoring steel bar (6), a U-shaped steel bar (7), a horizontal steel bar (8), an H-shaped steel connecting plate (11), and concrete (12). The concrete (12) is a track base body, the two H-shaped steels (1) are arranged in parallel and spaced apart in the middle of the track base body along the length direction of the track base body, the lower ends of the two H-shaped steels (1) are connected by the connecting steel plate (11) arranged along the length direction of the track, the lower end surfaces of the two H-shaped steels (1) are provided with a plurality of U-shaped steel bars (7) arranged in the length direction of the track, and the two ends of any U-shaped steel bar (7) are connected to the lower end surfaces of the two H-shaped steels (1), respectively, the two side walls of each U-shaped steel bar (7) are connected to a horizontal steel bar (8) arranged transversely, a plurality of hooked anchoring steel bars (6) are arranged in the length direction of the track and are connected to the left upper end of the left H-shaped steel (1) and the right upper end of the right H-shaped steel (1), respectively, the sliding block (2) is arranged in the cavity surrounded by the two H-shaped steels (1), and the position of the sliding block (2) is adjustable, the fastening bolt (3) passes through the sliding block (2), the upper end spacing of the two H-shaped steels (1), a loading support or equipment, and the nut (5) in sequence from the lower end, the upper end surface of the sliding block (2) is in contact with the two H-shaped steels (1), and the H-shaped steel (1), the hooked anchoring steel bar (6), the U-shaped steel bar (7), the horizontal steel bar (8), and the H-shaped steel connecting plate (11) constitute a steel member prearranged in the concrete. The gasket (4) is sleeved on the fastening bolt (3) between the nut (5) and the loading support or equipment. The ground reinforcing mesh (9) and the bottom reinforcing mesh (10) are arranged transversely on the upper part and the lower part of the concrete (12), respectively.

2. A heavy rail for fixing a loading support or equipment for mechanical tests according to claim 1, characterized in that, The upper end surface of the sliding block (2) is provided with a groove in the length direction of the track.

3. A heavy rail for fixing a loading support or equipment for mechanical tests according to claim 1, characterized in that, The H-shaped steel (1) is selected from the HEM series of European standards.

4. The heavy rail for fixing a loading support or equipment for mechanical tests according to claim 1, characterized in that, The sliding block (2) changes the position in the length direction of the track according to the fixed position requirement of the loading support or equipment (13), the nut (5) is loosened before the position is changed, and the nut (5) is tightened after the position is changed.

5. The heavy rail for fixing a loading support or equipment for mechanical tests according to claim 1, characterized in that, The heavy track is two or more tracks arranged in parallel.

6. A heavy rail for fixing a loading support or equipment for mechanical tests according to claim 1, characterized in that, The length of the sliding block (2) in the length direction of the track and the number of the bolts (3) connected to the sliding block (2) are determined according to the load capacity requirement.

7. A heavy rail for fixing a loading support or apparatus for mechanical testing according to claim 1, characterized in that, The U-shaped steel bar (7) and the horizontal steel bar (8) are adjusted in type and arrangement density according to the load capacity requirement.

8. A heavy rail for fixing a loading support or apparatus for mechanical testing according to claim 1, characterized in that, The thickness of the concrete (12) is adjusted according to the load capacity requirement and the size of the steel member part.

Images