A temperature adjusting device for fatigue detection of hot-rolled H-shaped steel

Abstract

The utility model discloses a kind of hot-rolled H-shaped steel fatigue detection temperature regulating devices, including upper heat preservation cover and lower heat preservation cover, upper heat preservation cover is located above lower heat preservation cover, detachable fixed connection is between upper heat preservation cover and lower heat preservation cover, multiple support steel wires are set in the inside of upper heat preservation cover and lower heat preservation cover, multiple support steel wires are parallelly arranged, upper heat preservation cover and lower heat preservation cover are made of flexible material, the length of upper heat preservation cover and lower heat preservation cover can be telescopic, and upper heat preservation cover and lower heat preservation cover are all connected with air inlet pipeline.In the utility model, the both ends of H-shaped steel are fixed on fatigue detection device, upper heat preservation cover and lower heat preservation cover are folded and wrapped around H-shaped steel, then air is blown into one side of H-shaped steel through air inlet pipeline, hot air or cold air can be selected according to needs, the temperature of the environment where H-shaped steel is located is adjusted, fatigue detection can be carried out on H-shaped steel after adjustment is completed, and the detection result can be more accurate.

Description

Technical Field

[0001] This utility model relates to the field of temperature regulation equipment technology, and in particular to a temperature regulation device for fatigue detection of hot-rolled H-beams. Background Technology

[0002] H-beams are an economical and efficient structural steel profile with an optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. They are named for their cross-section resembling the letter "H". H-beams are also used as support columns in steel structures. As support columns, H-beams are typically exposed to the outdoors for extended periods. Outdoor temperatures vary with seasons and geographical location, thus affecting the fatigue characteristics of H-beams. For building safety, H-beams undergo a series of inspections before leaving the factory to meet standards. Fatigue testing is an essential component of this process. During testing, the temperature of the environment surrounding the H-beams needs to be adjusted to improve the accuracy of the results. However, H-beams are quite long, with those used as support columns reaching lengths of up to 12 meters. Commercially available temperature control devices cannot adequately regulate the ambient temperature of such long H-beams, leading to inaccurate test results. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the prior art by providing a temperature regulation device for fatigue testing of hot-rolled H-beams.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A temperature regulation device for fatigue testing of hot-rolled H-beams includes an upper insulation cover and a lower insulation cover. The upper insulation cover is located above the lower insulation cover and is detachably fixedly connected to it. Both the upper and lower insulation covers have multiple supporting steel wires arranged in parallel inside. Both the upper and lower insulation covers are made of flexible material and their lengths are extendable. Both the upper and lower insulation covers are connected to air inlet pipes.

[0006] Preferably, both the upper and lower insulation covers are semi-circular structures, and when the upper and lower insulation covers are closed, they form a circular cavity inside, into which H-beams are inserted.

[0007] Preferably, both the upper and lower insulation covers have an insulation layer inside, the supporting steel wire is located inside the insulation layer, and the insulation layer is wrapped with a woven layer.

[0008] Preferably, the insulation layer is either insulation cotton or slag cotton, and the woven layer is made of PET polyethylene terephthalate material.

[0009] Preferably, an upper connecting block is fixedly installed on the upper insulation cover, and a lower connecting block is fixedly installed on the lower insulation cover. The upper connecting block and the lower connecting block are fixedly connected by bolts.

[0010] Preferably, both ends of the upper and lower insulation covers are fixedly provided with baffles, the baffles are provided with multiple ventilation holes, and the baffles are provided with slots, into which the H-beams are inserted.

[0011] Preferably, the air inlet duct includes air inlet branch pipes and air inlet main pipes. Multiple air inlet branch pipes are provided and are evenly arranged along the length of the H-beam. The air inlet main pipe is connected to the air inlet branch pipes.

[0012] Preferably, a bracket is fixedly installed at the end of the air inlet branch pipe away from the main air inlet pipe, and a fan is rotatably mounted on the bracket.

[0013] The beneficial effects of adopting the above technical solution are as follows:

[0014] 1. In this utility model, when performing fatigue testing on H-beams, temperature adjustment is required to place the H-beams under different temperature environments. During temperature adjustment, the upper and lower insulation covers are closed, and the H-beams are wrapped between the upper and lower insulation covers. Air is blown into the interior through the air inlet pipe to adjust the temperature, so that the H-beams are subjected to fatigue testing under different temperature environments, thereby obtaining more accurate test results.

[0015] 2. In this utility model, both the upper and lower insulation covers are made of flexible materials, so the lengths of both the upper and lower insulation covers can be reduced, thus making them more adaptable to H-beams of different lengths and with a wider range of applications.

[0016] 3. In this utility model, a fan is rotatably installed inside the air inlet branch pipe, so the airflow inside the air inlet branch pipe can be more uniform when entering the upper and lower insulation covers, thereby making the internal temperature more uniform. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 yes Figure 1 Enlarged view of part A;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model;

[0020] Figure 4 yes Figure 3 Enlarged view of part B;

[0021] Figure 5 This is a three-dimensional schematic diagram of the air inlet duct of this utility model.

[0022] In the diagram: 1 is the upper insulation cover, 2 is the lower insulation cover, 3 is the supporting steel wire, 4 is the air inlet duct, 5 is the insulation layer, 6 is the braided layer, 7 is the upper connecting block, 8 is the lower connecting block, 9 is the baffle, 10 is the vent, 11 is the slot, 12 is the air inlet branch pipe, 13 is the air inlet main pipe, 14 is the bracket, and 15 is the fan. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figure 1As shown, a temperature regulation device for fatigue testing of hot-rolled H-beams includes an upper insulation cover 1 and a lower insulation cover 2. The upper insulation cover 1 is located above the lower insulation cover 2, and the upper insulation cover 1 and the lower insulation cover 2 are detachably and fixedly connected. Both the upper insulation cover 1 and the lower insulation cover 2 have a semi-circular structure. When the upper insulation cover 1 and the lower insulation cover 2 are closed, they form a circular cavity. The H-beam is inserted into the cavity and passes through both ends of the cavity. Multiple supporting steel wires 3 are provided inside the upper insulation cover 1 and the lower insulation cover 2. The multiple supporting steel wires 3 are arranged in parallel and have a semi-circular structure to support the upper insulation cover 1 and the lower insulation cover 2 to always maintain a semi-circular structure. Both the upper insulation cover 1 and the lower insulation cover 2 are made of flexible material, therefore the upper insulation cover 1 and the lower insulation cover 2 are both made of flexible material. The lengths of the upper insulation cover 1 and the lower insulation cover 2 are extendable. Both the upper insulation cover 1 and the lower insulation cover 2 are connected to air inlet pipes 4, which can blow air into the upper insulation cover 1 and the lower insulation cover 2 to regulate the temperature inside the cavity. One end of the air inlet pipe 4 is connected to a refrigeration device, and the other end is connected to a hot air blower. The refrigeration device, the hot air blower, and the connection method with the air inlet pipe 4 are existing technologies. The refrigeration device can be an air conditioner, and the air outlet of the air conditioner is connected to one end of the air inlet pipe 4. When the air conditioner is off and the hot air blower is on, hot air can be blown into the cavity where the H-beam is located to raise the temperature; conversely, when the air conditioner is on and the hot air blower is off, cold air can be blown into the cavity where the H-beam is located to lower the temperature.

[0027] In this invention, when performing fatigue testing on H-beams, both ends of the H-beams are clamped and fixed to the testing device. To simulate the fatigue of the H-beams under different ambient temperatures, an upper insulation cover 1 is placed above the H-beams, and a lower insulation cover 2 is placed below the H-beams. The upper and lower insulation covers 1 and 2 are then closed and fixed together, encasing the H-beams. Air is blown into the interior through the air inlet duct 4. The air can be hot or cold, and the temperature is regulated to keep the ambient temperature of the H-beams constant. At the set temperature, the H-beams are swayed and shaken, thereby testing the fatigue of the H-beams and making the results more accurate. Since both the upper and lower insulation covers 1 and 2 are made of flexible materials, their lengths can be extended or retracted to accommodate H-beams of different lengths for fatigue testing, and also facilitate other inspection operations on the H-beams.

[0028] Furthermore, such as Figure 3 and Figure 4As shown, both the upper insulation cover 1 and the lower insulation cover 2 have an insulation layer 5 inside. The insulation layer 5 is made of insulation cotton or slag wool and is used to keep the insulation layer warm and prevent heat loss inside the upper insulation cover 1 and the lower insulation cover 2. The supporting steel wire 3 is set inside the insulation layer 5. The supporting steel wire 3 is made of 65Mn spring steel with a cross-sectional area of ​​4mm*2.5mm. The radius of the semi-circular arc formed by the supporting steel wire 3 is 450mm. The insulation layer 5 is wrapped with a braided layer 6, which is made of PET polyethylene terephthalate material. The braided layer 6 is used to wrap the insulation layer 5. The insulation layer 5 and the braided layer 6 are relatively soft and can be compressed. Therefore, the upper insulation cover 1 and the lower insulation cover 2 are at their longest length when fully extended. They can be compressed to shorten their length.

[0029] Furthermore, a heat insulation layer is provided between the insulation layer 5 and the woven layer 6. The heat insulation layer is made of aluminum silicate insulation blanket, which can effectively isolate the heat transfer and better play the role of heat insulation. A reflective layer is attached to the side of the upper insulation cover 1 and the lower insulation cover 2 near the H-beam. The reflective layer is woven from metal aluminum foil composite flame retardant fabric material, which can retain heat between the upper insulation cover 1 and the lower insulation cover 2 and prevent heat loss.

[0030] Furthermore, such as Figure 1 and Figure 2 As shown, an upper connecting block 7 is fixedly installed on the upper insulation cover 1. There are multiple upper connecting blocks 7, which are located at the lower edge of the upper insulation cover 1. A lower connecting block 8 is fixedly installed on the lower insulation cover 2. There are multiple lower connecting blocks 8, which are located at the upper edge of the lower insulation cover 2. When the upper insulation cover 1 and the lower insulation cover 2 are closed, the upper connecting block 7 and the lower connecting block 8 correspond one-to-one. The upper connecting block 7 and the lower connecting block 8 are fixedly connected by bolts, thereby fixing the upper insulation cover 1 and the lower insulation cover 2 together.

[0031] In another embodiment, the upper insulation cover 1 and the lower insulation cover 2 are fixedly connected by a buckle. The buckle can be a commercially available buckle. The buckle and the connection method are existing technologies and will not be described in detail here.

[0032] Furthermore, baffles 9 are fixedly installed at both ends of the upper insulation cover 1 and the lower insulation cover 2. The baffles 9 are made of rigid materials, such as wood or steel plates. Multiple ventilation holes 10 are provided on the baffles 9. The ventilation holes 10 allow the internal cavity formed by the upper insulation cover 1 and the lower insulation cover 2 to circulate with the outside air, thus preventing excessive pressure in the internal cavity. Slots 11 are provided on the baffles 9, and H-beams are inserted into the slots 11. The baffles 9 also provide support, allowing the H-beams to be positioned in the middle of the upper insulation cover 1 and the lower insulation cover 2, thereby making the environment in which the H-beams are located more uniform and stable.

[0033] Furthermore, such as Figure 5 As shown, the air inlet duct 4 includes air inlet branch pipes 12 and air inlet main pipes 13. Multiple air inlet branch pipes 12 are provided and are evenly arranged along the length of the H-beam. The air inlet main pipe 13 is connected to the air inlet branch pipes 12 and is connected to external refrigeration equipment and hot air blowers. Cold air or hot air enters the air inlet branch pipes 12 through the air inlet main pipe 13 and finally enters the cavity formed by the upper insulation cover 1 and the lower insulation cover 2 after they are closed, so as to change the internal temperature and regulate the temperature. Multiple air inlet branch pipes 12 can make the air intake more uniform and make the internal temperature more uniform and stable.

[0034] Furthermore, both the air inlet branch pipe 12 and the air inlet main pipe 13 are made of flexible and expandable pipes. During the expansion and contraction of the upper insulation cover 1 and the lower insulation cover 2, the length of the air inlet main pipe 13 can also expand and contract synchronously, thereby adapting to size adjustments.

[0035] Furthermore, such as Figure 5 As shown, a bracket 14 is fixedly installed at the end of the air inlet branch pipe 12 away from the main air inlet pipe 13. The bracket 14 has a cross-shaped structure. The outermost end of the bracket 14 is fixedly connected to the inner wall of the air inlet branch pipe 12. A fan 15 is rotatably installed on the bracket 14. The fan 15 is rotatably installed in the middle of the bracket 14. During the flow of air in the air inlet branch pipe 12, it can drive the fan 15 to rotate, thereby making the airflow more dispersed and evenly distributed in the internal cavity formed after the upper insulation cover 1 and the lower insulation cover 2 are closed, so that the ambient temperature of the H-beam is more uniform.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A temperature control device for fatigue testing of hot-rolled H-beams, characterized in that, It includes an upper heat insulation cover (1) and a lower heat insulation cover (2). The upper heat insulation cover (1) is located above the lower heat insulation cover (2). The upper heat insulation cover (1) and the lower heat insulation cover (2) are detachably and fixedly connected. Both the upper heat insulation cover (1) and the lower heat insulation cover (2) are provided with multiple supporting steel wires (3). The multiple supporting steel wires (3) are arranged in parallel. Both the upper heat insulation cover (1) and the lower heat insulation cover (2) are made of flexible material. The length of the upper heat insulation cover (1) and the lower heat insulation cover (2) can be extended and retracted. Both the upper heat insulation cover (1) and the lower heat insulation cover (2) are connected to air inlet pipes (4).

2. The temperature control device for fatigue testing of hot-rolled H-beams according to claim 1, characterized in that, The upper insulation cover (1) and the lower insulation cover (2) are both semi-circular structures. When the upper insulation cover (1) and the lower insulation cover (2) are closed, a circular cavity is formed inside, and H-shaped steel is inserted into the cavity.

3. The temperature control device for fatigue testing of hot-rolled H-beams according to claim 1, characterized in that, The upper insulation cover (1) and the lower insulation cover (2) are both provided with an insulation layer (5), the supporting steel wire (3) is provided inside the insulation layer (5), and the insulation layer (5) is wrapped with a braided layer (6).

4. The temperature control device for fatigue testing of hot-rolled H-beams according to claim 3, characterized in that, The insulation layer (5) is either insulation cotton or slag cotton, and the woven layer (6) is woven from PET polyethylene terephthalate material.

5. The temperature control device for fatigue testing of hot-rolled H-beams according to claim 1, characterized in that, An upper connecting block (7) is fixedly installed on the upper insulation cover (1), and a lower connecting block (8) is fixedly installed on the lower insulation cover (2). The upper connecting block (7) and the lower connecting block (8) are fixedly connected by bolts.

6. The temperature control device for fatigue testing of hot-rolled H-beams according to claim 1, characterized in that, Both ends of the upper insulation cover (1) and the lower insulation cover (2) are fixedly provided with baffles (9), and multiple ventilation holes (10) are opened on the baffles (9). Slots (11) are opened on the baffles (9), and the H-beams are inserted into the slots (11).

7. The temperature control device for fatigue testing of hot-rolled H-beams according to claim 1, characterized in that, The air inlet duct (4) includes an air inlet branch pipe (12) and an air inlet main pipe (13). There are multiple air inlet branch pipes (12), which are evenly arranged along the length of the H-beam. The air inlet main pipe (13) is connected to the air inlet branch pipes (12).

8. The temperature control device for fatigue testing of hot-rolled H-beams according to claim 7, characterized in that, A bracket (14) is fixedly installed at one end of the air inlet branch pipe (12) away from the air inlet main pipe (13), and a fan (15) is rotatably installed on the bracket (14).

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