Glazed copper shell cold roll

Abstract

The utility model relates to a smooth copper shell cold roll, which comprises an inner core component and a copper shell component coaxially connected outside the inner core component, a liquid inlet channel and a liquid outlet channel are respectively arranged at two ends of the inner core component, and an annular cavity is arranged in the copper shell component. The liquid inlet channel, the annular cavity and the liquid outlet channel are sequentially communicated and form a one-way cooling flow channel; an impeller rotating along with the liquid inlet channel is installed in the liquid inlet channel and used for driving cooling liquid to flow in the one-way cooling flow channel. Through the design of linkage of the impeller and the roller body, the cooling liquid is driven to flow by using the rotation power of the roller, an external pumping device is not needed, active cooling with zero extra energy consumption is realized, and the energy-saving benefit is remarkable; a spiral flow guide path is matched, so that the heat conduction efficiency and the cooling liquid contact area are greatly improved, and thermal deformation is effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the field of cold rolling roll technology, and specifically relates to a bright copper shell cold rolling roll. Background Technology

[0002] Cold rolling is widely used for high-precision processing of metal sheets and strips, and one of its core pieces of equipment is the cold rolling roll. Traditional cold rolling rolls are usually made of alloy steel or cast iron, but for high-speed working environments, the requirements for the surface finish, wear resistance, and corrosion resistance of the rolls are extremely high. Therefore, copper-based alloy materials are used to manufacture the outer shell of the cold rolling roll. In existing technology, to ensure the temperature stability of the roll body, flow channels are generally set inside, and it is driven by an external pump. However, this method relies too heavily on an external power unit to maintain the coolant flow rate. Utility Model Content

[0003] This utility model addresses the problems of existing technologies by providing a smooth copper shell cold rolling roll. The specific technical solution is as follows:

[0004] A bright copper shell cold rolling roll, comprising an inner core component and a copper shell component coaxially connected to the outside of the inner core component;

[0005] The inner core component has an inlet channel and an outlet channel at both ends, and the copper shell component has an annular cavity. The inlet channel, the annular cavity, and the outlet channel are connected in sequence to form a unidirectional cooling channel.

[0006] An impeller that rotates with the liquid inlet channel is installed inside the liquid inlet channel to drive the coolant to flow in the unidirectional cooling channel.

[0007] As a further technical solution of this utility model, a spiral guide is installed in the annular cavity to form a spiral flow path that guides the flow of coolant.

[0008] As a further technical solution of this utility model, both ends of the inner core component extend axially to form a neck.

[0009] As a further technical solution of this utility model, the impeller includes a plurality of blades radially distributed along the liquid inlet channel, and the rotation axis of the blades coincides with the axis of the liquid inlet channel.

[0010] As a further technical solution of this utility model, the inner core component is radially provided with a first guide hole communicating with the liquid inlet channel and a second guide hole communicating with the liquid outlet channel, and the copper shell component is radially provided with a liquid inlet hole and a liquid outlet hole communicating with the annular cavity. In the installed state, the liquid inlet channel and the annular cavity are connected to the liquid inlet hole through the first guide hole, and the liquid outlet channel and the annular cavity are connected to the liquid outlet hole through the second guide hole.

[0011] The beneficial effects of this utility model are as follows:

[0012] In this application, the impeller and roll body are linked by a design that uses the rotational power of the roll itself to drive the flow of coolant. This eliminates the need for an external pumping device, achieving active cooling with zero additional energy consumption and significant energy savings. Combined with a spiral guide path, the heat transfer efficiency and coolant contact area are greatly improved, effectively preventing thermal deformation. Furthermore, the impeller speed is linearly positively correlated with the roll speed, and the coolant flow rate is automatically matched to the processing conditions. During high-speed rolling, the cooling intensity is simultaneously enhanced, avoiding the problems of overcooling or insufficient cooling in traditional constant flow systems. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of the bright copper shell cold rolling roll is shown;

[0014] Figure 2 A structural schematic diagram of the inner core component and the copper shell component is shown.

[0015] Legend:

[0016] 100. Inner core component; 110. Liquid inlet channel; 111. Flow guide hole one; 112. Impeller; 120. Liquid outlet channel; 121. Flow guide hole two; 200. Copper shell component; 210. Annular cavity; 211. Liquid inlet hole; 212. Liquid outlet hole; 220. Spiral guide component. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] Figure 1 A schematic diagram of the overall structure of the bright copper shell cold rolling roll is shown; Figure 1 The smooth copper shell cold rolling roll includes an inner core component 100 and a copper shell component 200 coaxially connected to the inner core component 100. The copper shell component 200 is a hollow cylinder made of beryllium copper alloy, which enables it to quickly dissipate the heat generated during rolling. Combined with a circumferential heat dissipation design, it significantly improves heat dissipation efficiency and avoids material deformation or performance degradation caused by overheating of the roll. The inner core component 100 is a cylindrical structure with axial extensions at both ends forming necks. In actual use, the necks formed at both ends of the inner core component 100 can be directly connected to a drive device, such as by installing gears coaxially on the necks to achieve the rotation of the roll. The inner core component 100 and the copper shell component 200 are detachably connected by a toothed key. That is, in actual use, the inner core component 100 and the copper shell component 200 can be disassembled, which is beneficial for maintenance or unblocking the internal flow channels. The toothed key connection allows the inner core component 100 and the copper shell component 200 to rotate synchronously.

[0019] Figure 2 A schematic diagram of the structure of the inner core component 100 and the copper shell component 200 is shown; Figure 2 In the inner core component 100, an inlet channel 110 and an outlet channel 120 are respectively opened at both ends. An annular cavity 210 is opened inside the copper shell component 200. The inlet channel 110 and the outlet channel 120 are both connected to the annular cavity 210 and form a one-way flow channel. The one-way flow channel allows the flow direction to be from the inlet channel 110 to the outlet channel 120. An impeller 112 is installed in the inlet channel 110. The inlet channel 110, the annular cavity 210, and the outlet channel 120 form a one-way flow channel, that is, the coolant enters the annular cavity 210 through the inlet channel 110 and flows out through the outlet channel 120, thereby carrying away the copper. The heat from the shell component 200 is used to cool the copper shell component 200. Furthermore, through the impeller 112 inside the liquid inlet channel 110, when the roller rotates, the impeller 112 rotates accordingly and drives the liquid flow. This allows the coolant to flow automatically with the rotation of the roller, achieving automatic cooling without the need for external driving force interference. This saves energy, and the liquid flow speed can also be adaptively adjusted with the rotation speed of the roller. For example, when the inner core component 100 and the copper shell component 200 accelerate during rotation, the impeller 112 accelerates accordingly to increase the liquid flow rate in the liquid inlet channel 110 and improve the heat absorption effect.

[0020] See also Figure 2The inner core component 100 has a radially formed guide hole 111 connecting the liquid inlet channel 110 and a guide hole 121 connecting the liquid outlet channel 120. The copper shell component 200 has a radially formed inlet hole 211 and an outlet hole 212 connecting the annular cavity 210. In the installed state, the liquid inlet channel 110 and the annular cavity 210 are connected through the guide hole 111 and the inlet hole 211, and the liquid outlet channel 120 and the annular cavity 210 are connected through the guide hole 121 and the outlet hole 212. That is, after the inner core component 100 and the copper shell component 200 are installed, the guide hole 111 and the inlet hole 211 are aligned to connect the liquid inlet channel 110 and the annular cavity 210, and the guide hole 121 and the outlet hole 212 are aligned to connect the liquid outlet channel 120 and the annular cavity 210. The body 210 is connected, and the inlet hole 211 and outlet hole 212 are respectively arranged at the two ends of the copper shell component 200 to correspond to the first guide hole 111 and the second guide hole 121; the impeller 112 is installed at the connection between the inlet channel 110 and the first guide hole 111; that is, when the blades of the impeller 112 rotate, they can directly throw the coolant into the annular cavity 210 through the inlet hole 211, which is beneficial to drive the coolant from the inlet channel 110 into the annular cavity 210; a spiral guide component 220 is installed in the annular cavity 210 to form a spiral flow path; by forming a spiral flow path in the annular cavity 210, the residence time of the coolant in the annular cavity 210 is extended, and the coolant and the cavity wall of the annular cavity 210 are fully in contact, and the two together improve the cooling effect.

[0021] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A bright copper shell cold rolling roller, comprising an inner core part (100) and a copper shell part (200) coaxially connected outside the inner core part (100), characterized in that: liquid inlet channel (110) and liquid outlet channel (120) are respectively arranged at two ends of the inner core part (100), an annular cavity (210) is arranged in the copper shell part (200), the liquid inlet channel (110), the annular cavity (210) and the liquid outlet channel (120) are sequentially communicated and form a one-way cooling flow channel; a impeller (112) rotating with the liquid inlet channel (110) is installed in the liquid inlet channel (110) to drive the cooling liquid to flow in the one-way cooling flow channel.

2. A bright copper sheath cold rolled roller as claimed in claim 1 wherein: A spiral flow guide (220) is arranged in the annular cavity (210) to form a spiral flow path guiding the flow of the cooling liquid.

3. A bright copper sheath cold rolled roller as claimed in claim 2, wherein: The two ends of the inner core part (100) are axially extended to form necks.

4. A bright copper sheath cold rolled roller as claimed in claim 3 wherein: The impeller (112) comprises a plurality of blades radially distributed along the liquid inlet channel (110), and the rotation axis of the blades coincides with the axis of the liquid inlet channel (110).

5. A bright copper shell cold rolling roll as claimed in claim 3 wherein: Flow guide holes (111) and (121) are radially arranged on the inner core part (100) and communicate with the liquid inlet channel (110) and the liquid outlet channel (120), respectively, and liquid inlet holes (211) and liquid outlet holes (212) are radially arranged on the copper shell part (200) and communicate with the annular cavity (210), in the installed state, the liquid inlet channel (110) and the annular cavity (210) are communicated through the flow guide hole (111) and the liquid inlet hole (211), and the liquid outlet channel (120) and the annular cavity (210) are communicated through the flow guide hole (121) and the liquid outlet hole (212).

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