A rolling oil structure for flat base pipe wing forming

Abstract

The utility model relates to a radiator preparation technical field, concretely relates to a kind of rolling oil structure for flat base pipe fin forming, comprising: one or more groups of rolling oil components, each group of rolling oil components is arranged in the both sides of flat base pipe travel path in left-right symmetry mode, each side has the oil roller that can autorotate and the oil absorption medium layer that is covered in the oil roller outer periphery and is synchronously passive rotation with it;When working, flat base pipe shaving surface forms rolling contact with infiltrated oil absorption medium layer;Oil storage component is used to store lubricating oil;Pump oil component pumps lubricating oil in oil storage component to the oil absorption medium layer of rolling oil component by oil outlet pipeline.When rolling oil component is multiple, pump oil component is connected multiple oil outlet pipelines in parallel by multi-way joint to simultaneously supply oil to multiple rolling oil components.The rolling oil structure of the utility model forms isolated oil film on flat base pipe shaving surface, effectively reduces tool wear, inhibits thermal adhesion, significantly improves fin forming quality and tool life;Support multiple-channel parallel oil supply simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of radiator manufacturing technology, specifically to an oil rolling structure for forming fins on flat-based tubes. Background Technology

[0002] In traditional finned heat exchange tubes, the assembly gap or welding thermal resistance between the fins and the base tube makes contact thermal resistance a key bottleneck restricting heat transfer efficiency. The flying wing flat tube, through integrated cutting and forming technology, directly processes continuous flying wing ribs on a substrate such as aluminum alloy, completely eliminating the interfacial thermal resistance between the fins and the substrate, achieving a breakthrough improvement in heat conduction performance.

[0003] However, during high-speed cutting, the plastic deformation of the metal material generates intense frictional heat, leading to localized fusion welding (i.e., adhesion) between the chips and the base tube surface. This is particularly problematic in the high-frequency continuous cutting of fin forming, where chips easily re-fuse onto the base tube surface, forming a work-hardened layer. This not only accelerates tool wear but also disrupts the geometric integrity of the fin root, resulting in defects in the heat transfer path. This adhesion not only compromises the geometric accuracy of the fin forming but also creates microscopic defects on the base tube surface, severely impacting product yield and the stability of heat exchange performance. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses a roller oil structure for forming winged blades of flat tubes. By roller-coating lubricating oil, an isolation film can be formed at the cutting interface, which can reduce the instantaneous temperature of the cutting zone, prevent material softening and adhesion, and ensure the forming accuracy of the winged blades of the flying wing flat tube and the stability of the product's heat transfer performance.

[0005] To achieve the above technical objectives, on the one hand, this utility model proposes a rolling oil structure for forming the fins of flat-based tubes, comprising:

[0006] One or more sets of oil rolling components are arranged symmetrically on both sides of the travel path of the flat base tube. Each side has a self-rotating oil roller and an oil-absorbing medium layer covering the outer periphery of the oil roller and rotating passively with it. During operation, the scraped surface of the flat base tube forms rolling contact with the wetted oil-absorbing medium layer.

[0007] Oil reservoir assembly, used to store lubricating oil;

[0008] The oil pump assembly pumps the lubricating oil from the oil storage assembly to the oil suction medium layer of the oil rolling assembly through the oil outlet pipeline.

[0009] As a preferred technical solution, the oil-absorbing medium layer is a flexible porous material, including at least one of non-woven fabric, felt, porous sponge, microporous rubber or polyurethane foam.

[0010] As a preferred technical solution, a lubricating oil recovery box is provided below the oil rolling assembly.

[0011] As a preferred technical solution, the end of the oil outlet pipe of the oil pump assembly extends to the top of the oil-absorbing medium layer so that the lubricating oil drips and seeps into the oil-absorbing medium layer.

[0012] As a preferred technical solution, the oil pump assembly is connected to a timing control device to intermittently supply oil according to a preset cycle.

[0013] As a preferred technical solution, the oil rolling structure is integrated between the input unit and the wing-scraping unit of the flying wing flat tube wing scraper.

[0014] As a preferred technical solution, the oil rolling assembly is fixed to the support assembly at the inlet of the shovel wing unit via a connecting assembly. The support assembly has a guide inlet, and the connecting assembly is symmetrically arranged on the left and right sides of the guide inlet.

[0015] As a preferred technical solution, the connection component includes:

[0016] The fixing part is horizontally connected to the support assembly;

[0017] The roller body connecting part is vertically set at the top of the fixed part and is rotatably connected to the oil roller through a bearing; the gap between the oil absorption medium layers is directly opposite the guide inlet.

[0018] As a preferred technical solution, when there are multiple sets of oil rolling components, the oil pumping component connects multiple oil outlet pipelines in parallel through multi-port connectors to supply oil to multiple oil rolling components simultaneously, thereby achieving synchronous lubrication of multi-channel flat base tubes.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention achieves uniform coating of lubricating oil film before the flat-based tube enters the fin unit at high speed. The flexible porous structure of the oil-absorbing medium layer both stores and releases oil, forming a stable dynamic oil film that significantly blocks direct metal-to-metal contact between the tool and the workpiece, inhibiting solid diffusion and tool sticking. The high specific heat capacity of the oil film reduces the instantaneous temperature rise in the cutting zone, preventing material thermal softening. Simultaneously, intermittent oil pumping removes chips, avoiding secondary deposition, while also saving energy and preventing over-lubrication. Modular parallel oil supply supports multi-channel synchronous processing. The overall structure is compact and maintenance-free, maintaining the surface quality of the finned material for a long time and extending tool life, providing a reliable process guarantee for the efficient and stable manufacturing of high-heat-flux heat dissipation fins. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0022] Figure 1 A front view of the oil rolling structure of this utility model is shown (the support component includes two guide inlets).

[0023] Figure 2 Show Figure 1 The right view;

[0024] Figure 3 The diagram shows the internal structure of the oil rolling assembly of this utility model.

[0025] The above figures include the following reference numerals:

[0026] 1. Oil rolling assembly; 11. Oil roller; 12. Oil suction medium layer; 2. Oil pump assembly; 3. Oil storage assembly; 4. Oil outlet pipeline; 5. Timer; 6. Support assembly; 61. Guide inlet; 7. Connection assembly; 8. Lubricating oil recovery box. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more comprehensive description of it is provided below, along with preferred embodiments. However, it should be understood that these embodiments are merely for more detailed explanation and should not be construed as limiting the utility model in any way, i.e., not limiting the scope of protection of this utility model. Unless otherwise defined, the technical terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; 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 based on the specific circumstances.

[0029] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model.

[0030] This utility model provides a rolling oil structure for flat tube fin forming. The rolling oil structure is integrated between the input unit and the fin forming unit of the flying wing flat tube fin forming machine. Its core function is to uniformly coat the fin cutting surfaces on the left and right sides of the flat tube before it enters the fin forming unit, so as to provide the necessary lubrication and cooling conditions for subsequent high-speed fin forming operations, thereby significantly improving the fin forming quality and tool life.

[0031] like Figures 1-3 As shown, the oil rolling structure includes an oil rolling assembly 1, an oil pumping assembly 2, and an oil storage assembly 3. The oil rolling assembly 1 is arranged symmetrically on both sides of the flat tube's travel path. Each side includes a passively rotating oil roller 11 and an oil-absorbing medium layer 12 tightly covering its outer circumferential surface. During operation, the oil-absorbing medium layer is in contact with the scraped surface of the flat tube. Preferably, the initial spacing between the oil-absorbing medium layers 12 is slightly smaller than the actual width of the flat tube. When the flat tube passes through in a stepping manner, rolling friction is generated between its surface and the oil-absorbing medium layer 12, driving the oil roller 11 to rotate passively. At the same time, under the elastic compression, the oil-absorbing medium layer 12 transfers the internally saturated lubricating oil to the scraped surfaces on both sides of the flat tube in a uniform and continuous manner.

[0032] The aforementioned roller coating method not only avoids problems such as uneven oil film and drip contamination that may occur with traditional spraying or brushing, but also enables lubricant molecules to form a directional adsorption layer on the metal surface, effectively blocking direct contact between the tool and the workpiece, inhibiting the solid diffusion of metal caused by high temperature and pressure, and reducing the risk of tool sticking. In addition, the oil film itself has a high specific heat capacity, which can absorb a large amount of heat in the cutting zone instantly, significantly reducing the local temperature rise and preventing the material from undergoing plastic deformation or sticking due to thermal softening. Furthermore, under high-speed shearing, the lubricant continuously flushes the cutting interface, promptly removing fine chips and avoiding the impact of secondary deposition on the surface quality of the fins, thus laying a reliable process foundation for the high heat flux heat dissipation requirements in a compact space.

[0033] In some specific embodiments, the oil-absorbing medium layer 12 is made of a flexible porous material with capillary adsorption properties, such as non-woven fabric, felt, porous sponge, microporous rubber, polyurethane foam, etc. The flexibility of the oil-absorbing medium layer 12 ensures the adhesion effect with the surface of the flat base tube and avoids damage to the base tube. At the same time, the porous structure forms a dynamic balance of oil storage and oil release, which can better maintain a stable oil film thickness.

[0034] In some specific embodiments, the oil storage component 3 is a sealed oil tank containing special lubricating oil, and its bottom is connected to the oil pump component 2 through a pipeline; the oil pump component 2 is an oil pump matched with the oil storage component 3, and its power is based on meeting the continuous wetting requirements of the oil suction medium layer 12.

[0035] In some specific embodiments, the bottom of the oil pump assembly 2 is provided with an oil outlet pipe 4 corresponding to different oil-absorbing medium layers 12. The end of the oil outlet pipe 4 is directly opposite the top of the oil-absorbing medium layer 12, and the distance between them is such that it does not interfere with the rotation of the oil roller 11. To avoid the oil-absorbing medium layer 12 becoming oversaturated due to continuous oil supply, resulting in dripping waste, the opening and closing of the oil pump assembly 2 is controlled by a timing control device. Specifically, a timer 5 is connected in series in the pump body power supply circuit and set to start once every 30-60 seconds, with each oil supply lasting 2-5 seconds. This cycle can be adjusted in real time according to the ambient temperature, oil viscosity, and production rhythm to ensure that the oil-absorbing medium layer 12 is always in the best wetted state and does not overflow. Alternatively, a bracket can be used to fix the oil outlet pipe 4 directly above the oil-absorbing medium layer 12, so that the lubricating oil penetrates the oil-absorbing medium layer 12 evenly in a uniform dripping manner.

[0036] A lubricating oil recovery box 8 is provided on the table surface below the oil rolling assembly 1. Its function is to collect the lubricating oil that seeps out of the oil-absorbing medium layer 12 to prevent it from staining the work surface and causing waste.

[0037] In some specific embodiments, in order to adapt to the needs of high-speed multi-channel production, one wing-scraping machine can simultaneously perform input and wing-scraping operations for multiple sets of flat tubes; therefore, an oil rolling assembly 1 can be independently configured at each wing-scraping inlet, and the oil pumping assembly 2 can be connected to multiple oil outlet pipelines 4 in parallel through multi-port connectors to supply oil to multiple oil rolling assemblies at the same time, so as to realize synchronous lubrication of multi-channel flat tubes and ensure lubrication stability when multiple sets of tubes are processed at the same time.

[0038] In some specific embodiments, the oil rolling assembly 1 is arranged in pairs at the inlet of the wing assembly of the wing excavator, specifically on the vertical support assembly 6 at the inlet of the wing assembly. The support assembly 6 has a guide inlet 61 that matches the cross-sectional shape and size of the flat base tube to ensure the lateral positioning accuracy when the flat base tube enters. Connecting assemblies 7 are symmetrically arranged on the left and right sides of the guide inlet 61 for fixing the oil rolling assembly 1, and the gap between the oil absorption medium layers is directly opposite the guide inlet.

[0039] Specifically, the connecting assembly 7 consists of a fixing part and a roller body connecting part: the fixing part is a rigid horizontal connecting rod or connecting plate, which is fastened to the side wall of the supporting assembly 6 by bolts or welding; the roller body connecting part is a cylindrical shaft vertically set at the top of the fixing part, the outer diameter of which matches the center hole of the oil roller 11, and the two are connected by a miniature rolling bearing to achieve low-friction rotation. This structural design not only ensures the stability of the oil roller 11 when it is passively rotated at high speed, but also reduces the starting torque through the friction reduction effect of the bearing, so that the flat base tube can smoothly drive the oil rolling assembly 1 to work even when passing through at a high speed, thereby continuously outputting a uniform and reliable lubrication effect in high-speed continuous production.

[0040] It should be noted that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, several simple improvements can be made without departing from the concept of the present invention, and all such improvements should be considered to fall within the scope of protection of the present invention.

Claims

1. A rolling oil structure for forming fins on flat-based tubes, characterized in that, include: One or more sets of oil rolling components are arranged symmetrically on both sides of the travel path of the flat base tube. Each side has a self-rotating oil roller and an oil-absorbing medium layer covering the outer periphery of the oil roller and rotating passively with it. During operation, the scraped surface of the flat base tube forms rolling contact with the wetted oil-absorbing medium layer. Oil reservoir assembly, used to store lubricating oil; The oil pump assembly pumps the lubricating oil from the oil storage assembly to the oil suction medium layer of the oil rolling assembly through the oil outlet pipeline.

2. The oil-rolling structure for forming shovel wings of flat-based tubes as described in claim 1, characterized in that, The oil-absorbing medium layer is a flexible porous material, including at least one of non-woven fabric, felt, porous sponge, microporous rubber or polyurethane foam.

3. The oil-rolling structure for forming shovel wings of flat-based tubes according to claim 1, characterized in that, A lubricating oil recovery box is located below the oil rolling assembly.

4. The oil-rolling structure for forming shovel wings of flat-based tubes according to claim 1, characterized in that, The oil outlet pipe of the oil pump assembly extends to the top of the oil suction medium layer.

5. The oil-rolling structure for forming shovel wings of flat-based tubes according to claim 4, characterized in that, The oil pump assembly is connected to a timing control device and supplies oil intermittently according to a preset cycle.

6. The oil-rolling structure for forming shovel wings of flat-based tubes according to claim 1, characterized in that, The oil-rolling structure is integrated between the input unit and the wing-scraping unit of the flying wing flat tube wing scraper.

7. The oil-rolling structure for forming shovel wings of flat-based tubes according to claim 6, characterized in that, The oil rolling assembly is fixed to the support assembly at the inlet of the shovel wing unit via a connecting assembly. The support assembly has a guide inlet, and the connecting assemblies are symmetrically arranged on the left and right sides of the guide inlet.

8. The oil-rolling structure for forming shovel fins of flat-based tubes according to claim 7, characterized in that, The connection component includes: The fixing part is horizontally connected to the support assembly; The roller body connecting part is vertically set at the top of the fixed part and is rotatably connected to the oil roller through a bearing; the gap between the oil absorption medium layers is directly opposite the guide inlet.

9. The oil-rolling structure for forming shovel fins of flat-based tubes according to any one of claims 1 to 8, characterized in that, When there are multiple sets of oil rolling components, the oil pumping assembly connects multiple oil outlet pipelines in parallel through multi-port connectors to supply oil to multiple oil rolling components simultaneously.

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