Lightweight high-rigidity high-temperature furnace cantilever support

Abstract

The utility model belongs to the technical field of high-temperature furnaces in mechanical tests of high-temperature materials, and discloses a lightweight high-rigidity cantilever support for a high-temperature furnace, which comprises a main support column preferably made of 50100 series aluminum profiles; the rotary supporting frame is connected with the main supporting column through a rotary pre-tightening mechanism, and the rotary supporting frame is of a door type frame structure and preferably adopts an 8080 aluminum alloy profile; the fine adjustment lifting mechanism comprises a lead screw and two chromium-plated guide rods and is mounted on the rotary supporting frame; the supporting opening and closing module comprises two groups of bearing rings which are mounted on the two chromium-plated guide rods, and the bearing rings, the upper end cover and the lower end cover of the high-temperature furnace form a connecting structure capable of being rotatably opened and closed; according to the utility model, through the chrome-plated steel pipe rotating shaft and the damping adjusting ring of the rotating pre-tightening mechanism, the horizontal rotation of the cantilever and the stepless adjustment of resistance are realized, and no shake is generated after positioning; and a fine adjustment lifting mechanism composed of the lead screw and the chromium plating guide rod provides lifting adjustment, and meanwhile the head lowering phenomenon is adjusted through the head lowering adjusting block.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature furnace technology in high-temperature material mechanical testing, and in particular to a lightweight, high-rigidity high-temperature furnace cantilever support. Background Technology

[0002] In high-temperature mechanical testing of metallic materials, the high-temperature furnace is a crucial accessory in this field. Its support structure not only affects the accuracy of test results but also the ease of operation and safety for testing personnel. Currently, traditional cantilever supports for high-temperature furnaces on the market are not only bulky and difficult to adjust, but also prone to thermal deformation or material fatigue, especially under prolonged high-temperature operating conditions, causing the furnace to tilt forward, commonly known as "head-down." When head-down occurs, the center hole of the furnace becomes interfered with the loading chain, leading to misalignment of the loading chain during testing. This ultimately results in significant deviations in test results. Furthermore, when fine-tuning the height of the high-temperature furnace is required, this function is often lacking or difficult to achieve.

[0003] Currently, traditional support structures mainly suffer from the following problems: Most adopt a frame structure, typically made of steel or iron alloys. This not only results in heavy materials but also insufficient rigidity under high-temperature environments, making them prone to deformation. Furthermore, the height adjustment devices for high-temperature furnaces are usually complex, the adjustment process is cumbersome, and operation is inconvenient, severely impacting production efficiency and operational safety. Commonly used vacuum high-temperature environment devices also have the following problems:

[0004] 1. The connection between the traditional bracket and the high-temperature furnace is generally a hinge through-hole connection. The hinge is installed on the high-temperature furnace. Due to space limitations, the hinge itself has insufficient rigidity. Furthermore, because it is installed on the surface of the high-temperature furnace, the furnace shell cannot be designed to be too thick due to weight issues. Therefore, the rigidity at this position is seriously insufficient, which is the main reason for the tilting phenomenon.

[0005] 2. The materials are mostly steel or iron alloys, resulting in a bulky overall structure that is time-consuming and labor-intensive to operate;

[0006] 3. The frame structure used in traditional brackets has poor rigidity and extremely low torsional resistance;

[0007] Traditional support brackets are not commonly used for fine-tuning the height of high-temperature furnaces. Even if they are available, they are designed to be located far from the center of gravity of the high-temperature furnace, resulting in an excessive lever arm and making adjustment difficult. Summary of the Invention

[0008] The main purpose of this utility model is to provide a lightweight, high-rigidity cantilever support for a high-temperature furnace. It aims to solve the technical problem that the connection between the traditional support and the high-temperature furnace is generally a hinge through-hole connection. The hinge is installed on the high-temperature furnace, and the hinge itself is not rigid enough due to space limitations. Furthermore, because it is installed on the surface of the high-temperature furnace, the furnace shell cannot be designed to be too thick due to weight issues, thus causing a serious lack of rigidity at this location.

[0009] To achieve the aforementioned objectives of this utility model, the first aspect of this utility model proposes a lightweight, high-rigidity, high-temperature furnace cantilever support, comprising:

[0010] The main support columns should preferably be made of 50100 series aluminum profiles;

[0011] The rotating support frame is connected to the main support column through a rotating pre-tightening mechanism. The rotating support frame is a portal frame structure and preferably uses 8080 aluminum alloy profiles.

[0012] The fine-tuning lifting mechanism, consisting of a lead screw and two chrome-plated guide rods, is mounted on a rotating support frame.

[0013] The support opening and closing module includes two sets of support rings, which are installed on two chrome-plated guide rods. The support rings form a rotatable opening and closing connection structure with the upper and lower end covers of the high-temperature furnace.

[0014] Furthermore, the two sets of supporting rings are a lower supporting ring and an upper supporting ring. The lower supporting ring is configured as a bottom bearing structure, and the upper supporting ring is configured as a lifting support structure, forming a gravity-distributed double-layer support system.

[0015] Furthermore, the rotary pre-tightening mechanism includes a chrome-plated steel pipe rotating shaft, a wear-resistant copper sleeve, and a damping adjustment ring. The chrome-plated steel pipe rotating shaft is rotatably connected to the rotary support frame, and the wear-resistant copper sleeve is installed at the contact position between the chrome-plated steel pipe rotating shaft and the rotary support frame.

[0016] Furthermore, a locking threaded adjusting screw is installed at the opening position of the damping adjusting ring.

[0017] Furthermore, a T-shaped component is slidably connected to the chrome-plated guide rod, the T-shaped component is supported at the bottom of the upper support ring, and the T-shaped component is threadedly matched with the lead screw, and an adjustment handle is fixedly installed at one end of the lead screw.

[0018] Furthermore, the main support column, the rotating support frame, and the fine-tuning lifting mechanism are all made of high-strength aluminum alloy.

[0019] Furthermore, the portal frame of the rotating support frame has triangular reinforcing ribs at the connection between the columns and beams.

[0020] Furthermore, a head-down adjustment block is provided on the rear side of the rotating support frame. The head-down adjustment block includes an adjustment block and several adjustment screws. The adjustment block is installed on the two side crossbeams of the rotating support frame by the several screws.

[0021] Furthermore, the support ring is composed of two arc-shaped components, and the surfaces of the two arc-shaped components are coated with a high-temperature resistant ceramic coating. The two arc-shaped components are respectively rotatably connected to the corresponding chrome-plated guide rods.

[0022] Furthermore, a heat insulation plate is installed on the top of the supporting ring, and the heat insulation plate is located on the top of the high-temperature furnace. Beneficial effects

[0023] 1. This utility model achieves horizontal rotation of the cantilever and stepless adjustment of resistance through the rotating shaft of the chrome-plated steel pipe of the rotating pre-tightening mechanism and the damping adjustment ring, and there is no shaking after positioning; and the fine-tuning lifting mechanism composed of the lead screw and the chrome-plated guide rod provides lifting adjustment, while the tilting phenomenon is adjusted by the tilting adjustment block.

[0024] 2. This utility model uses 50100 series and 8080 high-strength aluminum alloy profiles to replace steel, combined with triangular reinforcing ribs and portal frame design, reducing the overall weight by more than 50% compared to the support made of steel, thus ensuring lightweight design.

[0025] 3. This utility model adopts a gravity-distributed support system formed by the lower and upper support rings to reduce single-point stress. Combined with a high-temperature resistant ceramic coating, it avoids high-temperature deformation of the support rings. The carbon fiber reinforced ceramic base heat insulation plate blocks the conduction of furnace heat to the support, extending its service life. At the same time, the upper support ring supporting the opening and closing module can rotate around the chrome-plated guide rod to open and close, allowing a single person to complete the loading and unloading of the high-temperature furnace within 3 seconds. When closed, the buckle locks tightly, and the lifting support structure can resist accidental disengagement caused by furnace vibration, improving safety by more than 90%. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a lightweight, high-rigidity, high-temperature furnace cantilever support according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of a lightweight, high-rigidity, high-temperature furnace cantilever support for a high-temperature furnace according to an embodiment of the present invention.

[0028] Figure 3 This is a structural schematic diagram of a lightweight, high-rigidity, high-temperature furnace cantilever support according to an embodiment of the present invention from another perspective.

[0029] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0030] Figure 5 This is an embodiment of the present utility model. Figure 2 Enlarged schematic diagram of the structure at point B.

[0031] in:

[0032] 1. Main support column; 2. Rotary pre-tightening mechanism; 21. Chrome-plated steel pipe rotating shaft; 22. Wear-resistant copper sleeve; 23. Damping adjustment ring; 231. Threaded adjusting screw; 3. Rotary support frame; 31. Head-down adjustment block; 32. Column; 33. Crossbeam; 4. Fine-tuning lifting mechanism; 41. Lead screw; 42. Chrome-plated guide rod; 43. Adjusting handle; 5. Support opening and closing module; 51. Support ring; 511. Lower support ring; 512. Upper support ring; 6. High-temperature furnace; 7. Heat insulation plate; 8. T-shaped component.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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. They 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0036] 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, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] Reference Figures 1-5 An embodiment of this utility model provides a lightweight, high-rigidity, high-temperature furnace cantilever support, comprising:

[0039] Main support column 1;

[0040] The rotating support frame 3 is connected to the main support column 1 through the rotating pre-tightening mechanism 2. The rotating support frame 3 is a portal frame structure.

[0041] The fine-tuning lifting mechanism 4, which includes a lead screw 41 and two chrome-plated guide rods 42, is mounted on the rotating support frame 3.

[0042] The supporting opening and closing module 5 includes two sets of support rings 51, which are installed on two chrome-plated guide rods 42. The support rings 51 form a rotatable opening and closing connection structure with the upper and lower end covers of the high-temperature furnace 6. The main support column 1, the rotating support frame 3, and the fine-tuning lifting mechanism 4 are all made of high-strength aluminum alloy.

[0043] In this embodiment, the lightweight, high-rigidity, high-temperature furnace cantilever support consists of a main support column 1, a rotating support frame 3, a fine-tuning lifting mechanism 4, and a support opening and closing module 5. The main support column 1, as the basic load-bearing component, is made of 50100 series high-strength aluminum profile with a rectangular hollow cross-section and anodized surface to improve corrosion resistance. The rotating support frame 3 is hinged to the main support column 1 via a rotating pre-tightening mechanism 2, forming a horizontally rotatable cantilever structure. The rotating support frame 3 is made of 8080 aluminum alloy profile, and the column 32 and the crossbeam 33 are connected by angle bracket bolts, with triangular reinforcing ribs welded at the connection to enhance torsional rigidity.

[0044] Among them, the main support column 1, as the basic load-bearing component, is made of 50100 series high-strength aluminum profile, the rotating support frame 3 is made of 8080 aluminum alloy profile, and the fine-tuning lifting mechanism 4 is made of 6061-T6 aluminum alloy to achieve lightweighting.

[0045] Optionally, the two sets of support rings 51 are a lower support ring 511 and an upper support ring 512. The lower support ring 511 is configured as a bottom bearing structure, and the upper support ring 512 is configured as a lifting support structure, forming a gravity-distributed double-layer support system.

[0046] The rotary pre-tightening mechanism 2 includes a chrome-plated steel pipe rotating shaft 21, a wear-resistant copper sleeve 22, and a damping adjusting ring 23. The chrome-plated steel pipe rotating shaft 21 is rotatably connected to the rotary support frame 3, and the wear-resistant copper sleeve 22 is installed at the contact position between the chrome-plated steel pipe rotating shaft 21 and the rotary support frame 3. A locking threaded adjusting screw 231 is installed at the opening of the damping adjusting ring 23.

[0047] It should be noted that the chrome-plated steel pipe rotating shaft 21 passes through both sides of the top of the main support column 1, and is fixed at both ends by flange bearings. The chrome plating layer thickness is ≥0.05mm to reduce the coefficient of friction. The wear-resistant copper sleeve 22 is nested between the rotating shaft 21 and the mounting hole of the rotating support frame 3. The inner wall of the copper sleeve is provided with a grease groove, and the outer diameter is interference-fitted with the mounting hole. The damping adjustment ring 23 is sleeved on the end of the rotating shaft 21. The tightening amount of the ring is controlled by the threaded adjusting screw 231 at the opening, so as to realize stepless adjustment of the rotation resistance and ensure the positioning stability of the cantilever.

[0048] A T-shaped component 8 is slidably connected to the chrome-plated guide rod 42. The T-shaped component 8 is supported at the bottom of the upper support ring 512, and the T-shaped component 8 is threadedly matched with the lead screw 41. An adjustment handle 43 is fixedly installed at one end of the lead screw 41.

[0049] It should be noted that the lead screw 41 is vertically mounted at the center of the crossbeam 33 of the rotating support frame 3 via a bearing seat. Two chrome-plated guide rods 42 are symmetrically distributed on both sides of the lead screw 41 and connected to the crossbeam 33 via upper and lower end fixing seats. The surface roughness Ra≤0.4μm is used to ensure smooth sliding.

[0050] The horizontal part of the T-shaped component 8 is threaded into the lead screw 41, while the vertical part has a guide sleeve that slides through the chrome-plated guide rod 42. When the adjusting handle 43 is rotated, the T-shaped component 8 drives the supporting opening and closing module 5 to achieve lifting and lowering adjustment.

[0051] The portal frame of the rotating support frame 3 has triangular reinforcing ribs at the connection between the column 32 and the beam 33.

[0052] The rear side of the rotating support frame 3 is provided with a tilt adjustment block 31. The tilt adjustment block 31 includes an adjustment block and several adjustment screws. The adjustment block is installed on the two side crossbeams 33 of the rotating support frame 3 by the screws. The tilt adjustment block 31 is located on the rear side of the rotating support frame 3 and is composed of an aluminum alloy adjustment block and adjustment screws. The tilt angle of the frame can be finely adjusted by turning the screws to adapt to different installation conditions.

[0053] The support ring 51 is composed of two arc-shaped components, and the surfaces of the two arc-shaped components are coated with a high-temperature resistant ceramic coating. The two arc-shaped components are respectively rotatably connected to the corresponding chrome-plated guide rods 42.

[0054] The supporting opening and closing module 5 includes a lower support ring 511 and an upper support ring 512, forming a gravity-distributed double-layer support. The upper support ring 512 and the lower support ring 511 are composed of two symmetrical arc-shaped parts, connected to the chrome-plated guide rod 42 by a hinge. The inner arc surface of the lower support ring 511 fits against the lower end cover of the high-temperature furnace 6, and the surface is coated with a 0.2mm thick high-temperature resistant ceramic coating. When closed, the upper support ring 512 snaps and locks the upper end cover of the high-temperature furnace 6; when opened, the furnace body can be quickly loaded and unloaded by manually operating the lever.

[0055] A heat insulation plate 7 is installed on the top of the support ring 51, and the heat insulation plate 7 is located on the top of the high-temperature furnace 6. The heat insulation plate 7 is installed on the top of the upper support ring 512, and is made of carbon fiber reinforced ceramic matrix composite material with a thickness of 10mm, used to block the conduction of furnace heat to the support.

[0056] Instructions: When installing and using, open the upper support ring 512, place the high-temperature furnace 6 vertically on the lower support ring 511, close the upper ring and lock it.

[0057] When the position needs to be adjusted, rotate the cantilever to the target horizontal angle and adjust the damping to ensure stable positioning; fine-tune the pitch angle by adjusting the head-down adjustment block 31.

[0058] Rotating the adjustment handle 43 raises and lowers the support module, allowing the furnace body to connect with external equipment. Furthermore, during furnace heating, the double-layer support structure disperses thermal stress, the heat insulation plate 7 blocks heat transfer, and the aluminum profile frame maintains rigidity at high temperatures.

[0059] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A lightweight, high-rigidity, high-temperature furnace cantilever support, characterized in that, include: Main support column (1); The rotating support frame (3) is connected to the main support column (1) through the rotating pre-tightening mechanism (2), and the rotating support frame (3) is a portal frame structure; The fine-tuning lifting mechanism (4) includes a lead screw (41) and two chrome-plated guide rods (42), which are mounted on the rotating support frame (3); The support opening and closing module (5) includes two sets of support rings (51) which are installed on two chrome-plated guide rods (42). The support rings (51) and the upper and lower end covers of the high-temperature furnace (6) form a rotatable opening and closing connection structure.

2. The lightweight, high-rigidity, high-temperature furnace cantilever support according to claim 1, characterized in that, The two sets of support rings (51) are a lower support ring (511) and an upper support ring (512). The lower support ring (511) is set as a bottom bearing structure, and the upper support ring (512) is set as a lifting support structure, forming a gravity-dispersed double-layer support system.

3. The lightweight, high-rigidity, high-temperature furnace cantilever support according to claim 1, characterized in that, The rotating pre-tightening mechanism (2) includes a chrome-plated steel pipe rotating shaft (21), a wear-resistant copper sleeve (22), and a damping adjustment ring (23). The chrome-plated steel pipe rotating shaft (21) is rotatably connected to the rotating support frame (3), and the wear-resistant copper sleeve (22) is installed at the contact position between the chrome-plated steel pipe rotating shaft (21) and the rotating support frame (3).

4. The lightweight, high-rigidity, high-temperature furnace cantilever support according to claim 3, characterized in that, The opening of the damping adjustment ring (23) is fitted with a locking threaded adjustment screw (231).

5. The lightweight, high-rigidity, high-temperature furnace cantilever support according to claim 1, characterized in that, A T-shaped component (8) is slidably connected to the chrome-plated guide rod (42). The T-shaped component (8) is supported at the bottom of the upper support ring (512), and the T-shaped component (8) is threadedly matched with the lead screw (41). An adjustment handle (43) is fixedly installed at one end of the lead screw (41).

6. The lightweight, high-rigidity, high-temperature furnace cantilever support according to claim 1, characterized in that, The main support column (1), the rotating support frame (3), and the fine-tuning lifting mechanism (4) are all made of high-strength aluminum alloy.

7. The lightweight, high-rigidity, high-temperature furnace cantilever support according to claim 1, characterized in that, The portal frame of the rotating support frame (3) has triangular reinforcing ribs at the connection between the column (32) and the beam (33).

8. The lightweight, high-rigidity, high-temperature furnace cantilever support according to claim 7, characterized in that, The rear side of the rotating support frame (3) is provided with a head-down adjustment block (31). The head-down adjustment block (31) includes an adjustment block and several adjustment screws. The adjustment block is installed on the two side beams (33) of the rotating support frame (3) by several screws.

9. The lightweight, high-rigidity, high-temperature furnace cantilever support according to claim 1, characterized in that, The support ring (51) is composed of two arc-shaped components, and the surfaces of the two arc-shaped components are coated with a high-temperature resistant ceramic coating. The two arc-shaped components are rotatably connected to the corresponding chrome-plated guide rods (42).

10. The lightweight, high-rigidity, high-temperature furnace cantilever support according to claim 1, characterized in that, The top of the support ring (51) is equipped with a heat insulation plate (7), and the heat insulation plate (7) is located on the top of the high-temperature furnace (6).

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