Water cooling roller

Abstract

The utility model provides a water cooling roller, which is provided with an outer roller wall, a hollow shaft and a bearing, the hollow shaft is used for carrying out water cooling on the outer roller wall, the hollow shaft is nested in the outer roller wall, the bearing is nested in the outer roller wall, the bearing and the hollow shaft are mutually nested, and the bearing comprises a bearing inner ring, a bearing outer ring and a bearing ball. The bearing balls are arranged between the bearing outer ring and the bearing inner ring, the bearing balls are used as a transmission machine for relative rotation between the bearing inner ring and the bearing outer ring, the outer wall of the bearing outer ring is connected with the inner wall of the outer roller wall, and the inner wall of the bearing inner ring is connected with the outer wall of the hollow shaft; furthermore, through the nesting relation between the bearing and the outer roller wall and the nesting relation between the bearing and the hollow shaft, the outer roller wall and the hollow shaft can rotate separately, so that water in the hollow shaft does not swing along with rolling of the water-cooling roller, and the roller can rotate at a constant speed; and the uniform heat dissipation effect of the water-cooling roller on the film is improved.

Description

Technical Field

[0001] The utility model relates to the field of drums, in particular to a water-cooled drum. Background Art

[0002] With the improvement of industrial level, the thickness of film coils is getting thinner and thinner. The thinner the film, the easier it is to wrinkle in a high-temperature environment, which affects the flatness of the winding. When the film is subjected to plasma treatment, several drums are required to assist in steering. Since the plasma chamber is already a high-temperature environment, the drums in the plasma chamber will also heat up, causing the film covering the drums to be exposed to too high a temperature and wrinkle. Therefore, a water-cooled drum is needed to dissipate heat from the film on the drum.

[0003] In the existing water-cooled drums, the water in the water-cooled drum often sways erratically as the water-cooled drum rolls. As a result, the centripetal force generated by the swaying water serves as an assistance for the rolling of the water-cooled drum, seriously affecting the uniform rotation of the drum. When the water-cooled drum dissipates heat from the film by rolling, the heat dissipation is uneven. Summary of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a water-cooled drum. Through the nested relationship between the bearing and the outer drum wall and the nested relationship between the bearing and the hollow shaft, the outer drum wall and the hollow shaft can rotate separately, so that the water in the hollow shaft does not sway as the water-cooled drum rolls, enabling the drum to rotate uniformly and improving the effect of uniform heat dissipation of the water-cooled drum on the film.

[0005] To achieve the above object, in a first aspect, an embodiment of the utility model provides a water-cooled drum, comprising:

[0006] An outer drum wall;

[0007] A hollow shaft for water-cooling the outer drum wall, the hollow shaft being nested in the outer drum wall;

[0008] A bearing nested in the outer drum wall, the bearing and the hollow shaft being nested with each other. The bearing includes an inner bearing ring, an outer bearing ring and bearing balls. The bearing balls are arranged between the outer bearing ring and the inner bearing ring, and the bearing balls are used as a transmission mechanism for relative rotation between the inner bearing ring and the outer bearing ring;

[0009] Wherein, the outer wall of the outer bearing ring is connected to the inner wall of the outer drum wall, and the inner wall of the inner bearing ring is connected to the outer wall of the hollow shaft.

[0010] Furthermore, in some embodiments, the hollow shaft includes a shaft body housing, a first cavity, and a second cavity. The shaft body housing is used to enclose the first cavity and the second cavity. The first cavity is provided at both ends of the second cavity and is in communication with the second cavity. The cross-sectional area of the first cavity is smaller than that of the second cavity. The first cavity is used to transmit water, and the second cavity is used to hold water.

[0011] Furthermore, in some embodiments, the shaft body housing includes a first housing and a second housing. The first cavity is enclosed by the first housing, and the second cavity is enclosed by the second housing. The first housing is connected to the second housing.

[0012] Furthermore, in some embodiments, the second housing includes a first stepped housing, a second stepped housing, and a third stepped housing. The axial center radius of the first stepped housing is greater than that of the second stepped housing, and the axial center radius of the second stepped housing is greater than that of the third stepped housing. One end of the first stepped housing is connected to the first housing, one end of the first stepped housing is connected to one end of the second stepped housing, and the other end of the second stepped housing is connected to one end of the third stepped housing.

[0013] Furthermore, in some embodiments, the third stepped housing includes a groove. The groove is provided at the other end of the third stepped housing and is used as a limiting component for the water-cooled drum and external parts.

[0014] Furthermore, in some embodiments, the nested position between the bearing and the hollow shaft is located in the first stepped housing.

[0015] Furthermore, in some embodiments, the water-cooled drum further includes a fixing ring. The fixing ring is used to fix the bearing to the hollow shaft. The fixing ring and the hollow shaft are nested with each other. The nested position between the fixing ring and the hollow shaft is located in the second stepped housing.

[0016] Furthermore, in some embodiments, the fixing ring further includes a bolt. The bolt is embedded in the fixing ring and is used to fix the fixing ring to the second stepped housing.

[0017] A water-cooled drum according to an embodiment of the present invention has at least the following beneficial effects: By providing an outer drum wall, a hollow shaft, and bearings, the hollow shaft is used to cool the outer drum wall by water cooling. The hollow shaft is nested in the outer drum wall, the bearings are nested in the outer drum wall, the bearings and the hollow shaft are nested with each other. The bearing includes an inner bearing ring, an outer bearing ring, and bearing balls. The bearing balls are arranged between the outer bearing ring and the inner bearing ring. The bearing balls are used as a transmission mechanism for relative rotation between the inner bearing ring and the outer bearing ring. Among them, the outer wall of the outer bearing ring is connected to the inner wall of the outer drum wall, and the inner wall of the inner bearing ring is connected to the outer wall of the hollow shaft. Furthermore, through the nested relationship between the bearing and the outer drum wall and the nested relationship between the bearing and the hollow shaft, the outer drum wall and the hollow shaft can perform separated rotation, so that the water in the hollow shaft does not slosh along with the rolling of the water-cooled drum, thereby enabling the drum to rotate at a constant speed and improving the effect of the water-cooled drum for uniformly dissipating heat from the film.

[0018] Other features and advantages of the present invention will be described in the following specification, and will be partially obvious from the specification. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the technical solutions of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation to the technical solutions of the present invention.

[0020] The following further illustrates the present invention in conjunction with the drawings and embodiments;

[0021] Figure 1 is the overall structure diagram of the water-cooled drum provided by some embodiments of the present invention;

[0022] Figure 2 is the exploded view of the water-cooled drum provided by some embodiments of the present invention;

[0023] Figure 3 is the structure diagram of the bearing provided by some embodiments of the present invention;

[0024] Figure 4 is the sectional view of the water-cooled drum provided by some embodiments of the present invention;

[0025] Figure 5 is provided by some embodiments of the present invention Figure 2 The enlarged view of part A in;

[0026] Figure 6 is the structure diagram of the fixing ring provided by some embodiments of the present invention.

[0027] Reference numerals: water-cooled drum 1000, outer drum wall 1100, hollow shaft 1200, shaft housing 1210, first housing 1211, second housing 1212, first stepped housing 12121, second stepped housing 12122, third stepped housing 12123, groove 121231, first cavity 1220, second cavity 1230, bearing 1300, bearing inner ring 1310, bearing outer ring 1320, bearing balls 1330, fixing ring 1400, bolt 1410. Detailed implementation manners

[0028] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0029] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] In the description of the present invention, unless otherwise clearly defined, words such as "arrangement", "installation", and "connection" should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0031] In the existing water-cooled drums, the water inside the water-cooled drum often swings erratically as the water-cooled drum rolls, and then the centripetal force randomly generated by the swinging of the water serves as the driving force for the rolling of the water-cooled drum, seriously affecting the uniform rotation of the drum. As a result, when the water-cooled drum dissipates heat by rolling the film, the heat dissipation is uneven.

[0032] Based on this, an embodiment of the present utility model provides a water-cooled drum. By providing an outer drum wall, a hollow shaft, and a bearing, the hollow shaft is used to cool the outer drum wall by water. The hollow shaft is nested inside the outer drum wall, and the bearing is nested inside the outer drum wall. The bearing and the hollow shaft are nested with each other. The bearing includes an inner bearing ring, an outer bearing ring, and bearing balls. The bearing balls are arranged between the outer bearing ring and the inner bearing ring. The bearing balls are used as a transmission mechanism for relative rotation between the inner bearing ring and the outer bearing ring. Among them, the outer wall of the outer bearing ring is connected to the inner wall of the outer drum wall, and the inner wall of the inner bearing ring is connected to the outer wall of the hollow shaft. Furthermore, through the nested relationship between the bearing and the outer drum wall and the nested relationship between the bearing and the hollow shaft, the outer drum wall and the hollow shaft can rotate separately, so that the water in the hollow shaft does not slosh along with the rolling of the water-cooled drum, thereby enabling the drum to rotate at a constant speed and improving the effect of the water-cooled drum for uniformly dissipating heat from the film.

[0033] Therefore, the following further elaborates on the embodiments of the present utility model in conjunction with the accompanying drawings.

[0034] Refer to Figure 1 、 Figure 2 、 Figure 3 as shown, Figure 1 is the overall structure diagram of the water-cooled drum provided by some embodiments of the present utility model, Figure 2 is the exploded view of the water-cooled drum provided by some embodiments of the present utility model, Figure 3 is the structure diagram of the bearing provided by some embodiments of the present utility model. The water-cooled drum 1000 includes an outer drum wall 1100, a hollow shaft 1200, and a bearing 1300. The hollow shaft 1200 is used to cool the outer drum wall 1100 by water. The hollow shaft 1200 is nested inside the outer drum wall 1100, and the bearing 1300 is nested inside the outer drum wall 1100. The bearing 1300 and the hollow shaft 1200 are nested with each other. The bearing 1300 includes an inner bearing ring 1310, an outer bearing ring 1320, and bearing balls 1330. The bearing balls 1330 are arranged between the outer bearing ring 1320 and the inner bearing ring 1310. The bearing balls 1330 are used as a transmission mechanism for relative rotation between the inner bearing ring 1310 and the outer bearing ring 1320.

[0035] Among them, the outer wall of the outer bearing ring 1320 is connected to the inner wall of the outer drum wall 1100, and the inner wall of the inner bearing ring 1310 is connected to the outer wall of the hollow shaft 1200. Furthermore, through the nested relationship between the bearing 1300 and the outer drum wall 1100 and the nested relationship between the bearing 1300 and the hollow shaft 1200, the outer drum wall 1100 and the hollow shaft 1200 can rotate separately, so that the water in the hollow shaft 1200 does not slosh along with the rolling of the water-cooled drum 1000, thereby enabling the drum to rotate at a constant speed and improving the effect of the water-cooled drum 1000 for uniformly dissipating heat from the film.

[0036] Further, referring to Figure 4 as shown, Figure 4 is a cross-sectional view of a water-cooled drum provided by some embodiments of the present invention. The hollow shaft 1200 includes a shaft body housing 1210, a first cavity 1220, and a second cavity 1230. The shaft body housing 1210 is used to enclose the first cavity 1220 and the second cavity 1230. The first cavity 1220 is provided at both ends of the second cavity 1230 and is in communication with the second cavity 1230. The cross-sectional area of the first cavity 1220 is smaller than that of the second cavity 1230. The first cavity 1220 is used to transmit water, and the second cavity 1230 is used to hold water.

[0037] Further, referring to Figure 5 as shown, Figure 5 is an enlarged view of part A in Figure 2 provided by some embodiments of the present invention. The shaft body housing 1210 includes a first housing 1211 and a second housing 1212. The first cavity 1220 is enclosed by the first housing 1211, and the second cavity 1230 is enclosed by the second housing 1212. The first housing 1211 is connected to the second housing 1212.

[0038] Further, it can be seen from Figure 5 that the second housing 1212 includes a first stepped housing 12121, a second stepped housing 12122, and a third stepped housing 12123. The axial center radius of the first stepped housing 12121 is greater than that of the second stepped housing 12122, and the axial center radius of the second stepped housing 12122 is greater than that of the third stepped housing 12123. One end of the first stepped housing 12121 is connected to the first housing 1211, one end of the first stepped housing 12121 is connected to one end of the second stepped housing 12122, and one end of the second stepped housing 12122 is connected to one end of the third stepped housing 12123. Thus, through multiple stepped housings, the bearing 1300 can be firmly fixed on the hollow shaft 1200, improving the structural integrity of the water-cooled drum 1000.

[0039] Further, it can be seen from Figure 5 that the third stepped housing 12123 includes a groove 121231. The groove 121231 is provided at the other end of the third stepped housing 12123. The groove 121231 is used as a limiting component for the water-cooled drum 1000 and external parts.

[0040] It should be noted that the nested position between the bearing 1300 and the hollow shaft 1200 is located at the first stepped housing 12121.

[0041] Further, referring to Figure 6 as shown, Figure 6It is a structural diagram of a fixing ring provided by some embodiments of the present utility model. The water-cooled drum 1000 further includes a fixing ring 1400. The fixing ring 1400 is used to fix the bearing 1300 to the hollow shaft 1200. The fixing ring 1400 and the hollow shaft 1200 are nested with each other. The nested position between the fixing ring 1400 and the hollow shaft 1200 is located at the second-step housing 12122, so as to be able to fix the bearing 1300 to the hollow shaft 1200.

[0042] Further, from Figure 6 it can be seen that the fixing ring 1400 further includes a bolt 1410. The bolt 1410 is embedded in the fixing ring 1400. The bolt 1410 is used to fix the fixing ring 1400 to the second-step housing 12122.

[0043] It should be understood that in the present utility model, "at least one (item)" means one or more, and "a plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can represent: only A exists, only B exists, and both A and B exist at the same time. Among them, A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after. "At least one (one) of the following" or its similar expression refers to any combination of these items, including any combination of single item (one) or plural items (ones). For example, at least one (one) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0044] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art, various changes can be made without departing from the purpose of the present utility model.

Claims

1. A water-cooled drum, characterized in that: include: Outer drum wall; A hollow shaft, the hollow shaft is used to water-cool the outer drum wall, and the hollow shaft is nested in the outer drum wall; A bearing, wherein the bearing is nested in the outer drum wall, the bearing and the hollow shaft are mutually nested, the bearing comprises a bearing inner ring, a bearing outer ring and a bearing ball, the bearing ball is arranged between the bearing outer ring and the bearing inner ring, and the bearing ball is used as a transmission mechanism for relative rotation between the bearing inner ring and the bearing outer ring; Wherein, the outer wall of the bearing outer ring is connected to the inner wall of the outer drum wall, and the inner wall of the bearing inner ring is connected to the outer wall of the hollow shaft.

2. The water-cooled drum according to claim 1, characterized in that: The hollow shaft includes a shaft body shell, a first cavity and a second cavity. The shaft body shell is used to wrap the first cavity and the second cavity. The first cavity is arranged at both ends of the second cavity and is connected to the second cavity. The cross-sectional area of ​​the first cavity is smaller than the cross-sectional area of ​​the second cavity. The first cavity is used to transmit water, and the second cavity is used to load water.

3. The water-cooled drum according to claim 2, characterized in that: The shaft housing includes a first shell and a second shell, the first cavity is wrapped by the first shell, the second cavity is wrapped by the second shell, and the first shell is connected to the second shell.

4. The water-cooled drum according to claim 3, characterized in that: The second shell includes a first step shell, a second step shell and a third step shell, the axial radius of the first step shell is greater than the axial radius of the second step shell, the axial radius of the second step shell is greater than the axial radius of the third step shell, one end of the first step shell is connected to the first shell, the other end of the first step shell is connected to one end of the second step shell, and the other end of the second step shell is connected to one end of the third step shell.

5. The water-cooled drum according to claim 4, characterized in that: The third step housing includes a groove, which is arranged at the other end of the third step housing, and the groove is used as a limiting component between the water-cooling roller and external parts.

6. The water-cooled drum according to claim 4, characterized in that: The nesting position between the bearing and the hollow shaft is located at the first step housing.

7. The water-cooled drum according to claim 4, characterized in that: The water-cooling roller further comprises a fixing ring, which is used to fix the bearing to the hollow shaft. The fixing ring and the hollow shaft are nested with each other, and the nesting position between the fixing ring and the hollow shaft is located at the second step housing.

8. The water-cooled drum according to claim 7, characterized in that: The fixing ring further comprises bolts, which are embedded in the fixing ring and used for fixing the fixing ring to the second step housing.

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