Roller capable of controlling convexity of roller surface
By designing the main channel, inflow pipeline and cooling channel structure in the roll, the cooling medium is used to take away the heat at both ends of the roll, forming a temperature difference to correct the roll surface, solving the problem of roll surface disturbance control and adapting to larger roll diameter and width The need for improvements in calibration effect.
Patent Information
- Application Number
- CN202420485865.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2024-12-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the polar sheet rolling process, the roll surface is disturbed due to reaction force, and the existing eight-bend steel deflection adjustment mechanism is difficult to effectively control the roll surface convexity when facing a larger roller diameter and width, and the bending cylinder cantilever The mount has insufficient force tolerance.
A roll structure including a main channel, an inflow pipe, a first channel and a second channel is designed, and the heat at both ends of the roll is taken away by cooling medium in the flow paths of the first channel and the second channel to form a temperature difference to correct the roll In terms of the situation, it breaks through the limitations of traditional structures.
It effectively eliminates the disturbance of the roll surface, adapts to larger roll diameters and wider rolls, improves the correction effect, and avoids the shortcomings of traditional structures under force contradictions.
Smart Images
Figure CN222153376U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of roller press equipment, and in particular to a roller for controlling the convexity of the roller surface. Background Art
[0002] Pole sheet rolling is an important part of the lithium battery production process. It is achieved by fixing a certain roller system and pushing another movable roller system toward the fixed roller system with external force to squeeze the pole sheet to produce plastic deformation, thereby achieving the required process value.
[0003] However, during the rolling process, Figure 1 As shown in the figure, the two ends of the movable roll system, i.e., point A and point B, are subjected to the external force and the reaction force generated by the material on the middle of the roll surface, which causes the roll surface disturbance. Similarly, the fixed roll system is subjected to the reaction force of the material in the middle and the reaction force of the fixed seats on both sides, i.e., point C and point D, on the two ends of the roll, which causes the roll surface disturbance. In order to eliminate the roll surface disturbance, the eight-bend steel deflection adjustment mechanism is usually used for adjustment, refer to Figure 2 As shown in the figure, the eight-bend steel deflection adjustment mechanism takes the roller bearing seat as the fulcrum, and achieves the roller surface correction effect by applying bending roll force at the ends of the roller, namely points a, b, c, and d. However, with the development of market demand, the roller diameter is getting larger and the roller surface width is getting wider. In order to ensure the uniformity of material thickness, a larger bending roll force and a longer bending roll force arm are required; refer to Figure 3 The bending roll force arm of the structure shown is determined by the bending cylinder cantilever mounting seat 100; the result is that the wider the roll surface, the longer the bending roll arm is required, and the longer the bending cylinder cantilever mounting seat 100 is suspended; and the longer the bending cylinder cantilever mounting seat 100 is suspended, the smaller the force it can withstand, which is inconsistent with the required large bending roll force. Therefore, a new structure is needed to control the roll surface crown of the roll. Utility Model Content
[0004] Based on this, it is necessary to provide a rolling roller that controls the convexity of the roller surface, and the specific technical solution is as follows.
[0005] A rolling roller for controlling the convexity of a roller surface comprises a roller body, wherein the roller body is provided with a main channel extending in its axial direction, an inlet pipe is inserted in the main channel, a reflux gap is formed between the inlet pipe and the main channel, and the inlet pipe is connected to the reflux gap; a first channel and a second channel are also provided in the roller body, the first channel is connected to the main channel and the first channel extends in the radial direction of the roller body, one end of the second channel is connected to the first channel, and the other end is connected to the reflux gap; the second channel is arranged at an angle, so that the distance between the second channel and the roller surface gradually increases from the end surface of the roller body to the center area.
[0006] Furthermore, it comprises a plurality of first channels which are arranged in a circular array along the axis of the roller body, and each first channel is respectively provided with a corresponding second channel.
[0007] Furthermore, two ends of the roller body are respectively provided with a first channel and a second channel which are symmetrically arranged along the radial center plane of the roller body.
[0008] Furthermore, the first channel is connected to the reflux gap to form a first connecting port, and the second channel is connected to the reflux gap to form a second connecting port; a sealing ring is provided in the reflux gap between the first connecting port and the second connecting port, and the sealing ring blocks the reflux gap.
[0009] Furthermore, the main channel includes an open end and a closed end, and a communication gap is formed between one end of the inlet pipe inserted into the main channel and the closed end of the main channel.
[0010] Furthermore, it also includes a rotary joint, which is rotatably connected to the roller body, and the rotary joint is provided with a heat transfer medium inlet and a heat transfer medium outlet; the heat transfer medium inlet is connected to the inlet pipe, and the heat transfer medium outlet is connected to the reflux gap.
[0011] Furthermore, a hydraulic control valve and a flow proportional valve are provided on the inlet pipe.
[0012] Furthermore, the roller body, the main channel and the inlet pipe are coaxially arranged.
[0013] Beneficial effect: The utility model provides a roller for controlling the convexity of the roller surface. By introducing a cooling medium into the roller body to take away the heat from both ends of the roller, a temperature difference is formed between the middle and end surfaces of the roller surface, and the disturbance of the roller surface is corrected. This breaks through the limitation of the bending cylinder cantilever mounting seat 100 of the eight-bend steel deflection adjustment mechanism and can adapt to rollers with larger roller diameters and wider widths. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a schematic diagram of the disturbance caused by the force on the roller;
[0016] Figure 2 It is a schematic diagram of the force of the eight-bend steel deflection adjustment mechanism to correct the roll disturbance;
[0017] Figure 3 It is a schematic diagram of the arrangement of the bending cylinder cantilever mounting seat;
[0018] Figure 4 is a cross-sectional view of the roller in the axial direction in Example 1;
[0019] Figure 5 For the roller edge Figure 4 Sectional view of the plane where AA is located.
[0020] Description of reference numerals: 100, bending cylinder cantilever mounting seat;
[0021] 1. Roller body; 2. Main channel; 3. Inflow pipe; 4. Reflux gap; 5. First channel; 6. Second channel; 7. First connecting port; 8. Second connecting port; 9. Sealing ring; 10. Closed end; 11. Rotary joint; 12. Heat transfer medium inlet; 13. Heat transfer medium outlet; 14. Connecting gap. DETAILED DESCRIPTION
[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0026] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0028] Example
[0029] Reference Figure 4 As shown, this embodiment provides a roller for controlling the convexity of the roller surface, which includes a roller body 1, a main channel 2 extending along the axial direction of the roller body 1 is provided inside the roller body 1, an inflow pipe 3 is inserted in the main channel 2, and the roller body 1, the main channel 2 and the inflow pipe 3 are coaxially arranged. A reflux gap 4 is formed between the inflow pipe 3 and the main channel 2, and the inflow pipe 3 is connected to the reflux gap 4. A first channel 5 and a second channel 6 are also provided in the roller body 1, the first channel 5 is connected to the main channel 2 and the first channel 5 extends in the radial direction of the roller body 1, and the first channel 5 is close to the end face of the roller body 1. One end of the second channel 6 is connected to the first channel 5, and the other end is connected to the reflux gap 4, and the second channel 6 is arranged obliquely, so that the distance between the second channel 6 and the roller surface gradually increases from the end face of the roller body 1 to the center area.
[0030] It should be noted that during the rolling process, the areas at both ends of the roller body 1 are used to connect with the drive assembly. As the running time of the roller body 1 increases, the temperature of the two ends of the roller body 1 is affected by the temperature of the drive assembly, causing the temperature of the two ends of the roller body 1 to gradually increase, causing the two ends of the roller body 1 to expand in volume due to thermal expansion and contraction, resulting in the roller surface forming a "thin in the middle and thick at both ends" appearance. The roller provided in this embodiment allows the cooling medium to flow through the first channel 5 and the second channel 6. The path passing through the two ends of the roller body 1 is longer than the path passing through the middle of the roller body 1, forming a "thick in the middle and thin at both ends" correction effect on the roller body 1, which offsets the deformation generated during the rolling process, thereby improving the correction effect.
[0031] The present embodiment provides a rolling mill for controlling the convexity of the rolling mill surface. The cooling medium is introduced into the rolling mill body 1 to take away the heat from both ends of the rolling mill surface, thereby forming a temperature difference between the middle and end surfaces of the rolling mill surface, and correcting the disturbance of the rolling mill surface. This breaks through the limitation of the bending cylinder cantilever mounting seat 100 of the eight-bend steel deflection adjustment mechanism, and can adapt to rolling mills with larger diameters and wider widths.
[0032] Specifically, refer to Figure 5 As shown, there are multiple first channels 5, which are arranged in an annular array at equal angles around the axis of the roller body 1, and each first channel 5 is respectively provided with a second channel 6. The cooling path at the end of the roller body 1 is increased, thereby improving the correction effect.
[0033] Specifically, two groups of first channels 5 and second channels 6 are arranged at both ends of the roller body 1 , respectively, so that the first channels 5 and the second channels 6 at both ends of the roller body 1 are symmetrically arranged along the radial center plane of the roller body 1 .
[0034] Specifically, continue to refer to Figure 4 As shown, the first channel 5 is connected to the reflux gap 4 to form a first connecting port 7, and the second channel 6 is connected to the reflux gap 4 to form a second connecting port 8; a sealing ring 9 is provided in the reflux gap 4 between the first connecting port 7 and the second connecting port 8, and the sealing ring 9 blocks the reflux gap 4. The flow path of the cooling medium is limited by the sealing ring 9, specifically, the cooling medium flows in from the opening of the inlet pipe 3, and then enters the first channel 5 farther from the opening of the inlet pipe 3 through the reflux gap 4, and then enters the reflux gap 4 through the second channel 6, and then the cooling medium in the reflux gap 4 enters the second channel 6 and the first channel 5 at the other end of the roller body 1, and then flows back to the reflux gap 4, and is discharged outward through the reflux gap 4.
[0035] Specifically, the main channel 2 includes an open end and a closed end 10, and the inlet pipe 3 is inserted into one end of the main channel 2 and forms a connecting gap 14 with the closed end 10 of the main channel 2. One end of the roller body 1 is rotatably connected to a rotary joint 11, and the rotary joint 11 is provided with a heat transfer medium inlet 12 and a heat transfer medium outlet 13; the heat transfer medium inlet 12 is connected to the inlet pipe 3, and the heat transfer medium outlet 13 is connected to the return gap 4. The heat transfer medium outlet 13 and the heat transfer medium outlet 13 are located at the same end of the roller body 1, which is more convenient for connecting external coolers, control equipment, etc., reducing space occupation and making layout more convenient.
[0036] Specifically, a hydraulic control valve and a flow proportional valve are provided on the inlet pipe 3. The hydraulic control valve is controlled by the flow proportional valve to control the flow of coolant in the roller body 1, which can be adjusted according to actual needs to form a stable temperature difference between the end and the center area of the roller body 1.
[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0038] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.
Claims
1. A roller for controlling the crown of the roller surface, characterized in that: It comprises a roller body, wherein a main channel extending in the axial direction thereof is provided in the roller body, an inlet pipe is inserted in the main channel, a reflux gap is formed between the inlet pipe and the main channel, and the inlet pipe is connected with the reflux gap; a first channel and a second channel are also provided in the roller body, the first channel is connected with the main channel and the first channel extends in the radial direction of the roller body, one end of the second channel is connected with the first channel, and the other end is connected with the reflux gap; the second channel is arranged obliquely, so that the distance between the second channel and the roller surface gradually increases from the end surface of the roller body to the central area.
2. A roller for controlling roller surface crown according to claim 1, characterized in that: It comprises a plurality of first channels which are arranged in a circular array along the axis of the roller body, and each first channel is respectively provided with a second channel.
3. A roller for controlling roller surface crown according to claim 2, characterized in that: The two ends of the roller body are respectively provided with a first channel and a second channel which are symmetrically arranged along the radial center plane of the roller body.
4. A roller for controlling roller surface crown according to claim 1, characterized in that: The first channel is connected to the reflux gap to form a first communication port, and the second channel is connected to the reflux gap to form a second communication port. A sealing ring is provided in the reflux gap between the first communication port and the second communication port to block the reflux gap.
5. A roller for controlling roller surface crown according to claim 1, characterized in that: The main channel comprises an open end and a closed end, and a communication gap is formed between one end of the inlet pipe inserted into the main channel and the closed end of the main channel.
6. A roller for controlling roller surface crown according to claim 1, characterized in that: It also includes a rotary joint, which is rotatably connected to the roller body, and is provided with a heat-conducting medium inlet and a heat-conducting medium outlet; the heat-conducting medium inlet is connected to the inlet pipe, and the heat-conducting medium outlet is connected to the reflux gap.
7. A roller for controlling roller surface crown according to claim 1, characterized in that: The inlet pipeline is provided with a hydraulic control valve and a flow proportional valve.
8. A roller for controlling roller surface crown according to claim 1, characterized in that: The roller body, the main channel and the inlet pipe are coaxially arranged.