Carrier roller, conveying device and pole piece recycling equipment

Abstract

The invention relates to the technical field of carrier rollers, in particular to a carrier roller, a conveying device and pole piece recycling equipment. The carrier roller is applied to the conveying device and comprises a roller core; the wrapping body wraps the roller core, the thermal expansion coefficient of the wrapping body is larger than that of the roller core, and the wrapping body comprises a first wrapping section and a second wrapping section which are distributed in the axial direction of the roller core and arranged in a split mode; a positioning structure is arranged on the first wrapping section and used for positioning the flexible conveying belt in the axial direction of the roller core, and therefore the risk that materials conveyed by the conveying device with the carrier roller deviate can be reduced.

Description

Technical Field

[0001] This application relates to the field of idler roller technology, and in particular to an idler roller, a conveying device, and an electrode recycling device. Background Technology

[0002] Conveying devices are widely used in many industries. Conveying devices typically consist of idlers and flexible conveyor belts, with the flexible conveyor belts wound around the idlers to transport materials.

[0003] To prevent the flexible conveyor belt from deviating axially along the idlers, and thus to prevent material from slipping off the belt, related technologies involve setting positioning protrusions on the flexible conveyor belt and setting annular positioning grooves extending circumferentially on the idlers. The positioning protrusions cooperate with the positioning grooves to prevent the flexible conveyor belt from shifting axially along the idlers. However, in practice, the problem of material slipping off the flexible conveyor belt still exists. Summary of the Invention

[0004] This application discloses an idler roller, a conveying device, and an electrode recycling device, which can reduce the risk of material deviation when conveyed by the conveying device using the idler roller of this application.

[0005] To achieve the above objectives, in a first aspect, embodiments of this application disclose an idler roller applied to a conveying device, the idler roller comprising:

[0006] Roller core;

[0007] A covering body that wraps around the roller core, the covering body having a thermal expansion coefficient greater than that of the roller core, the covering body comprising a first covering section and a second covering section that are separately arranged and distributed along the axial direction of the roller core;

[0008] The first covering section is provided with a positioning structure, which is used to position the flexible conveyor belt along the axial direction of the roller core.

[0009] In an optional embodiment, the idler roller further includes a third covering section along the axial direction of the roller core, the second covering section being located between the first covering section and the third covering section, the second covering section and the third covering section being separately disposed;

[0010] The positioning structure is provided on the third covering segment.

[0011] In one alternative embodiment, at least one of the third covering section and the first covering section has a clearance clearance with the second covering section along the axial direction of the roller core.

[0012] In one alternative embodiment, the second covering segment forms a reduced diameter structure at the end corresponding to the clearance gap.

[0013] In one alternative embodiment, the width of the clearance gap along the axial direction of the roller core is greater than or equal to 2 mm.

[0014] In one alternative embodiment, along the axial direction of the roller core, the ratio of the length of the first covering section to the length of the second covering section is (1 / 40) to (1 / 5); and / or,

[0015] Along the axial direction of the roller core, the ratio of the length of the third covering section to the length of the second covering section is (1 / 40) to (1 / 5).

[0016] In an alternative embodiment, the positioning structure is not provided on the second covering segment.

[0017] In one optional embodiment, the end of the first covering segment opposite to the second covering segment forms a first stop portion. The first stop portion is located on one side of the roller core along its own axial direction. The roller core cooperates with the first stop portion to limit the first stop portion in the direction from the first covering segment to the second covering segment; and / or,

[0018] The third covering section forms a second stop at one end opposite to the second covering section. The second stop is located on one side of the roller core along its own axial direction. The roller core cooperates with the second stop to limit the second stop in the direction from the third covering section to the second covering section.

[0019] In one optional embodiment, the idler roller further includes a first pressing member disposed on the side of the first stop portion opposite to the roller core, the first pressing member being connected to the roller core to clamp and fix the first stop portion; and / or,

[0020] The idler roller also includes a second pressing member, which is disposed on the side of the second stop portion away from the roller core. The second pressing member is connected to the roller core to clamp and fix the second stop portion.

[0021] In one optional embodiment, the roller core includes a support cylinder and a mandrel, the covering body encloses the support cylinder, the mandrel passes through the support cylinder, and the support cylinder is rotatable around the mandrel;

[0022] Both ends of the support cylinder are respectively sealed to the mandrel. The mandrel is provided with a pressure relief channel. The pressure relief channel has a first opening and a second opening on the outer surface of the mandrel. Along the axial direction of the mandrel, the first opening is located inside the sealing area between the support cylinder and the mandrel, and the second opening is located outside the sealing area.

[0023] The idler roller also includes a sealing element, which is disposed at the second opening and is capable of blocking or opening the second opening.

[0024] In one optional embodiment, the positioning structure surrounds the circumference of the covering body, and the positioning structure is a positioning groove or a positioning protrusion; and / or,

[0025] Along the axial direction of the roller core, there is a clearance gap between the first covering section and the second covering section.

[0026] In one alternative embodiment, the covering is made of plastic or plastic material, and the roller core is made of metal material.

[0027] Secondly, embodiments of this application disclose a conveying device, including:

[0028] The idler roller as described in any of the above embodiments;

[0029] A flexible conveyor belt is wound around the outside of the covering body, and the flexible conveyor belt is provided with a mating part;

[0030] The positioning structure engages with the mating part to position the flexible conveyor belt axially along the roller core.

[0031] Thirdly, embodiments of this application disclose an electrode recycling device, including the aforementioned conveying device.

[0032] Compared with related technologies, the beneficial effects of this application are:

[0033] In this application, the idler roller includes a roller core and a covering body. The covering body wraps around the roller core and includes a first covering section and a second covering section that are separately arranged and distributed along the axial direction of the roller core. That is, this application splits the covering body into independently arranged first and second covering sections. When the covering body cools down, the first covering section is mainly subjected to its own internal stress, and the stress formed in the second covering section no longer affects the first covering section. That is, the stress formed in the second covering section will not accumulate and superimpose on the first covering section. Therefore, compared with the integrally formed covering body, the first covering section of this application has a smaller shrinkage along the axial direction of the roller core when cooling down. Setting the positioning structure in the first covering section can reduce the distance that the positioning structure moves along the axial direction of the roller core, thereby reducing the risk of the positioning structure disengaging from the flexible conveyor belt, thereby reducing the risk of the flexible conveyor belt running off-center when wrapped around the idler roller of this application, and further reducing the risk of the material conveyed by the flexible conveyor belt running off-center. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of the idler roller disclosed in the embodiments of this application;

[0036] Figure 2 For this application Figure 1 Enlarged view of point A in the middle;

[0037] Figure 3 This is a cross-sectional view of the idler roller disclosed in the embodiments of this application;

[0038] Figure 4 For this application Figure 3 Enlarged diagram of point B in the middle.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Roller core; 110. Support cylinder; 120. Mandrel; 121. Pressure relief channel; 122. First opening; 123. Second opening; 130. Bushing; 140. Bearing; 150. Sealing structure;

[0041] 200. Covering body; 201. Clearance gap; 210. First covering section; 211. Positioning structure; 212. First stop; 220. Second covering section; 221. Diameter reduction structure; 230. Third covering section; 231. Second stop;

[0042] 310. First pressing component; 320. Second pressing component;

[0043] 400. Sealing components. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0046] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0047] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0048] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0049] Conveying devices are widely used in many industries. Conveying devices typically consist of idlers and flexible conveyor belts, with the flexible conveyor belts wound around the idlers to transport materials.

[0050] To prevent the flexible conveyor belt from deviating along the axial direction of the idler roller, and thus to prevent the material from deviating from or even detaching from the flexible conveyor belt, the relevant technology sets a positioning protrusion on the flexible conveyor belt and a ring-shaped positioning groove extending circumferentially along the idler roller. The positioning protrusion and the positioning groove cooperate to prevent the flexible conveyor belt from moving axially along the idler roller.

[0051] The inventors discovered that the idler roller includes a roller core and a covering body, with the covering body encasing the roller core. The positioning groove is located on the integrally formed covering body. The covering body is usually made of a material with a high coefficient of thermal expansion, such as rubber or plastic. Therefore, when the temperature of the idler roller suddenly drops, the covering body will undergo plastic shrinkage. Since the covering body is a continuous integral structure, the various parts inside the covering body will restrain each other during the cooling process, which will easily lead to large deformation during the shrinkage process. The positioning groove is located on the covering body, so the position of the positioning groove will also change too much along the axial direction of the roller core. Obviously, this will cause the positioning groove to lose its positioning engagement with the positioning protrusion on the flexible conveyor belt. The flexible conveyor belt will lose its axial constraint and will run off-axis along the axial direction, which will cause the material conveyed by the flexible conveyor belt to run off-axis or even fall off the flexible conveyor belt.

[0052] This application discloses an idler roller, a conveying device, and an electrode recycling device, which can reduce the risk of material deviation when conveyed by the conveying device using the idler roller of this application. The idler roller, conveying device, and electrode recycling device provided in this application will be described in detail below with reference to the accompanying drawings and specific embodiments and application scenarios.

[0053] Please see Figure 1 This application discloses an idler roller used in a conveying device, the idler roller comprising:

[0054] Roller core 100. Roller core 100 is the skeleton of the idler roller, directly supporting the weight of the flexible conveyor belt and the material carried on it, ensuring the stability of the flexible conveyor belt during operation. For example, roller core 100 may be made of metal materials such as stainless steel.

[0055] The covering body 200 wraps around the roller core 100. The coefficient of thermal expansion of the covering body 200 is greater than that of the roller core 100. The covering body 200 includes a first covering segment 210 and a second covering segment 220, which are separately arranged and distributed along the axial direction of the roller core 100. That is, the first covering segment 210 and the second covering segment 220 are not integrally formed, and there is no connection between them. For example, the covering body 200 is made of plastic.

[0056] The first covering section 210 is provided with a positioning structure 211, which is used to position the flexible conveyor belt along the axial direction of the roller core 100. That is, the first covering section 210 can restrict the movement of the flexible conveyor belt along the axial direction of the roller core 100 by means of the positioning structure 211. For example, the positioning structure 211 can surround the circumference of the covering body 200, and the positioning structure 211 can be a positioning groove or a positioning protrusion.

[0057] In this application, the idler roller includes a roller core 100 and a covering body 200. The covering body 200 wraps around the roller core 100. The covering body 200 includes a first covering section 210 and a second covering section 220 that are separately arranged and distributed along the axial direction of the roller core 100. That is, in this application, the covering body 200 is divided into an independently arranged first covering section 210 and a second covering section 220. When the covering body 200 cools down, the first covering section 210 is mainly subjected to its own internal stress, and the stress formed in the second covering section 220 no longer affects the first covering section 210. The stress formed within 20 will not accumulate and superimpose on the first covering section 210. Therefore, compared with the integrally formed covering body 200, the shrinkage of the first covering section 210 along the axial direction of the roller core 100 during cooling is smaller. Setting the positioning structure 211 in the first covering section 210 can reduce the distance that the positioning structure 211 moves along the axial direction of the roller core 100, thereby reducing the risk of the positioning structure 211 and the flexible conveyor belt losing their positioning fit. This reduces the risk of the flexible conveyor belt running off-center when wrapped around the idler roller of this application, and further reduces the risk of the material being transported by the flexible conveyor belt running off-center.

[0058] From another perspective, after this application divides the covering body 200 into a first covering section 210 and a second covering section 220, the sum of the lengths of the first covering section 210 and the second covering section 220 is equal to the length of the integrally formed covering body 200. That is to say, the length of the first covering section 210 is less than the length of the integrally formed covering body 200. Therefore, when the idler roller is cooled, the amount of plastic shrinkage of the first covering section 210 will be less than the amount of plastic shrinkage of the integrally formed covering body 200. Placing the positioning structure 211 in the first covering section 210 can reduce the distance that the positioning structure 211 moves along the axial direction of the roller core 100, thereby reducing the risk of the positioning structure 211 and the flexible conveyor belt losing their positioning fit.

[0059] Please see Figure 1 In one alternative embodiment, a clearance gap 201 is provided between the first covering section 210 and the second covering section 220 along the axial direction of the roller core 100.

[0060] In this embodiment, along the axial direction of the roller core 100, there is a clearance gap 201 between the first covering section 210 and the second covering section 220. When the idler roller is heated and the first covering section 210 and the second covering section 220 are elongated, the clearance gap 201 can avoid the elongated portion of the first covering section 210 and the second covering section 220, reducing the risk of the second covering section 220 abutting against the first covering section 210, thereby reducing the risk of damage to at least one of the first covering section 210 and the second covering section 220.

[0061] Please see Figure 1 and Figure 2In one optional embodiment, the idler roller further includes a third covering section 230. Along the axial direction of the roller core 100, the second covering section 220 is located between the first covering section 210 and the third covering section 230. The second covering section 220 and the third covering section 230 are separately arranged, that is, the second covering section 220 and the third covering section 230 are not integrally formed, and there is no connection between them. The third covering section 230 is provided with a positioning structure 211. Exemplarily, the first covering section 210, the second covering section 220, and the third covering section 230 can all be connected to the roller core 100 by heat fusion.

[0062] In this embodiment, both the first covering section 210 and the third covering section 230 are provided with positioning structures 211. Both positioning structures 211 can axially position the flexible conveyor belt, thereby improving the positioning stability of the idler roller on the flexible conveyor belt.

[0063] Furthermore, given that the lengths of the first covering section 210 and the covering body 200 are fixed, compared to the comparative embodiment where the covering body 200 only includes the first covering section 210 and the second covering section 220, and the second covering section 220 is provided with a positioning structure 211, the idler roller of this embodiment includes the first covering section 210, the second covering section 220, and the third covering section 230. The length of the third covering section 230 can be less than the length of the second covering section 220 in the comparative embodiment. When the idler roller is cooled, the amount of plastic shrinkage of the third covering section 230 will be less than the amount of plastic shrinkage of the second covering section 220 in the comparative embodiment. Therefore, placing the positioning structure 211 on the third covering section 230 can reduce the distance that the positioning structure 211 moves axially along the roller core 100, thereby reducing the risk of the positioning structure 211 disengaging from the flexible conveyor belt, and thus reducing the risk of the flexible conveyor belt wrapped around the idler roller of this application and the material conveyed therefrom deviating.

[0064] In other embodiments, the idler roller includes a third covering section 230 along the axial direction of the roller core 100, and the first covering section 210 may be located between the second covering section 220 and the third covering section 230. This application does not limit the positional relationship between the first covering section 210, the second covering section 220 and the third covering section 230.

[0065] When the idler roller is heated, the first covering section 210, the second covering section 220, and the third covering section 230 will all elongate. To absorb this elongation and prevent the covering body 200 from bursting, please refer to [the relevant documentation / reference]. Figure 1 and Figure 2In one optional embodiment, at least one of the third covering section 230 and the first covering section 210 has a clearance gap 201 with the second covering section 220 along the axial direction of the roller core 100. That is, there is a clearance gap 201 between the third covering section 230 and the second covering section 220; and / or, there is a clearance gap 201 between the first covering section 210 and the second covering section 220. Of course, both ends of the second covering section 220 may also directly contact the first covering section 210 and the third covering section 230 respectively, and this application does not limit this.

[0066] In this embodiment, along the axial direction of the roller core 100, at least one of the third covering section 230 and the first covering section 210 has a clearance gap 201 with the second covering section 220.

[0067] Taking the clearance gap 201 between the first covering section 210 and the second covering section 220 as an example, when the idler roller is heated and the first covering section 210, the second covering section 220 and the third covering section 230 all elongate, the clearance gap 201 can avoid the elongated parts of the first covering section 210 and the second covering section 220, reducing the risk of the second covering section 220 and the first covering section 210 abutting each other, thereby reducing the risk of damage to at least one of the first covering section 210 and the second covering section 220.

[0068] Furthermore, after setting a clearance gap 201 between the first covering section 210 and the second covering section 220, the second covering section 220 will be accommodated by the clearance gap 201 between it and the first covering section 210 when it elongates. Therefore, the internal stress generated by the second covering section 220 when it elongates will not be accumulated and superimposed on the first covering section 210. As a result, the elongation of the first covering section 210 along the axial direction of the roller core 100 when it heats up is also smaller, so as to reduce the risk of the positioning structure 211 of the first covering section 210 disengaging from the flexible conveyor belt, thereby reducing the risk of the flexible conveyor belt winding around the idler of this application running off-center, and further reducing the risk of the material conveyed by the flexible conveyor belt running off-center.

[0069] Similarly, when there is a clearance gap 201 between the first covering section 210 and the third covering section 230, the risk of damage to at least one of the first covering section 210 and the third covering section 230 can be reduced, and the risk of the positioning structure 211 of the third covering section 230 disengaging from the flexible conveyor belt can also be reduced. This application will not elaborate on this.

[0070] In one optional embodiment, the width of the clearance 201 along the axial direction of the roller core 100 is greater than or equal to 2 mm. Exemplarily, the width of the clearance 201 can be 2.1 mm, 2.5 mm, 2.8 mm, 3.2 mm, 3.6 mm, 3.8 mm, 4.1 mm, 4.4 mm, 4.7 mm, 4.9 mm, etc. Further, the width of the clearance 201 can be less than or equal to 5 mm; this application does not limit the specific value of the clearance 201.

[0071] If the width of the clearance 201 is less than 2mm, its ability to compensate for the elongation of the first covering section 210, the second covering section 220, or the third covering section 230 is weak, and it can only prevent damage to at least one of the first covering section 210, the second covering section 220, and the third covering section 230 when the temperature difference is small. However, in this embodiment, the width of the clearance 201 is set to be greater than 2mm, which gives it a stronger ability to compensate for the elongation of the first covering section 210, the second covering section 220, or the third covering section 230. This allows the idler roller of this embodiment to operate normally in environments with greater temperature differences.

[0072] Please see Figure 2 In one optional embodiment, the end of the second covering section 220 corresponding to the clearance gap 201 forms a reduced diameter structure 221. That is, the diameter of the middle part of the second covering section 220 along the axial direction of the roller core 100 is greater than the diameter of the end of the second covering section 220 corresponding to the clearance gap 201. Specifically, when there is a clearance gap 201 between the first covering section 210 and the second covering section 220, the end of the second covering section 220 near the first covering section 210 forms a reduced diameter structure 221, and the diameter of the end of the second covering section 220 near the first covering section 210 is smaller than the diameter of the middle part of the second covering section 220; when there is a clearance gap 201 between the third covering section 230 and the second covering section 220, the end of the second covering section 220 near the third covering section 230 forms a reduced diameter structure 221, and the diameter of the end of the second covering section 220 near the third covering section 230 is smaller than the diameter of the middle part of the second covering section 220.

[0073] In this embodiment, the end of the second covering section 220 corresponding to the clearance gap 201 forms a diameter reduction structure 221, which reduces the diameter of the end of the second covering section 220 corresponding to the clearance gap 201 and reduces the stiffness of the end of the second covering section 220 corresponding to the clearance gap 201.

[0074] When the idler roller is heated, causing the first covering section 210, the second covering section 220, and the third covering section 230 to elongate, and the clearance 201 is insufficient to absorb the elongation of the first covering section 210, the second covering section 220, or the third covering section 230, the second covering section 220 will be compressed when it comes into contact with the first covering section 210 or the third covering section 230, because the stiffness of the end of the second covering section 220 corresponding to the clearance 201 is small. That is, when the first covering section 210, the second covering section 220, or the third covering section 230 is further heated, the second covering section 220 will be compressed. That is, there will be no hard stop between the second covering section 220 and the first covering section 210 or the third covering section 230, which can prevent damage to the first covering section 210, the second covering section 220, or the third covering section 230. Of course, the diameters of the two ends of the second covering segment 220 can also be equal to the diameter of the middle part of the second covering segment 220, and this application does not limit this.

[0075] Please see Figure 1 and Figure 2 In one optional embodiment, the outer diameter of the first covering segment 210 may be equal to the outer diameter of the third covering segment 230, and the outer diameter of the first covering segment 210 may be equal to the outer diameter of the reduced diameter structure 221 of the second covering segment 220.

[0076] In one optional embodiment, along the axial direction of the roller core 100, the ratio of the length of the first covering section 210 to the length of the second covering section 220 is (1 / 40) to (1 / 5). For example, the ratio of the length of the first covering section 210 to the length of the second covering section 220 can be 1 / 38, 1 / 36, 1 / 30, 1 / 27, 1 / 22, 1 / 19, 1 / 15, 1 / 11, 1 / 6, etc., and this application does not limit it to these values.

[0077] If the ratio of the length of the first covering section 210 to the length of the second covering section 220 is less than 1 / 40, then the length of the first covering section 210 is too small, and the size of the positioning structure 211 on the first covering section 210 is also too small. This will weaken the positioning effect of the positioning structure 211 on the flexible conveyor belt. If the ratio of the length of the first covering section 210 to the length of the second covering section 220 is greater than 1 / 5, then the length of the first covering section 210 is too large, and the reduction in the amount of shrinkage of the first covering section 210 when cooled is small, which also reduces the risk of the flexible conveyor belt and the material it conveys running off-track.

[0078] Therefore, in this embodiment, the ratio of the length of the first covering section 210 to the length of the second covering section 220 is controlled between (1 / 40) and (1 / 5). With a fixed length of the second covering section 220, the length of the first covering section 210 can be kept within a suitable range. This not only ensures that the size of the positioning structure 211 on the first covering section 210 is within a suitable range and ensures the positioning effect of the positioning structure 211 on the flexible conveyor belt, but also ensures that the first covering section 210 has a large amount of shrinkage when cooled, thereby improving the effect of preventing the flexible conveyor belt and the material it conveys from deviating.

[0079] In one optional embodiment, the ratio of the length of the third covering section 230 to the length of the second covering section 220 along the axial direction of the roller core 100 is (1 / 40) to (1 / 5). For example, the ratio of the length of the third covering section 230 to the length of the second covering section 220 can be 1 / 38, 1 / 36, 1 / 30, 1 / 27, 1 / 22, 1 / 19, 1 / 15, 1 / 11, 1 / 6, etc., and this application does not limit this to any particular value.

[0080] If the ratio of the length of the third covering section 230 to the length of the second covering section 220 is less than 1 / 40, then the length of the third covering section 230 is too small, and the size of the positioning structure 211 on the third covering section 230 is also too small. This will weaken the positioning effect of the positioning structure 211 on the flexible conveyor belt. If the ratio of the length of the third covering section 230 to the length of the second covering section 220 is greater than 1 / 5, then the length of the third covering section 230 is too large, and the reduction in the amount of shrinkage of the third covering section 230 when cooled is small, which also reduces the risk of the flexible conveyor belt and the material it conveys running off-track.

[0081] Therefore, in this embodiment, the ratio of the length of the third covering section 230 to the length of the second covering section 220 is controlled between (1 / 40) and (1 / 5). With a fixed length of the second covering section 220, the length of the third covering section 230 can be kept within a suitable range. This not only ensures that the size of the positioning structure 211 on the third covering section 230 is within a suitable range and ensures the positioning effect of the positioning structure 211 on the flexible conveyor belt, but also ensures that the third covering section 230 has a large amount of shrinkage when cooled, thereby improving the effect of preventing the flexible conveyor belt and the material it conveys from deviating.

[0082] In an alternative embodiment, the second covering segment 220 is not provided with a positioning structure 211.

[0083] Since the second covering section 220 is the main part supporting the flexible conveyor belt and has a large length, the second covering section 220 shrinks a lot when cooled. Therefore, the positioning structure 211 is not set on the second covering section 220 to prevent the second covering section 220 from causing the flexible conveyor belt to deviate along the axial direction when it shrinks.

[0084] Please see Figure 3 and Figure 4 In one optional embodiment, a first stop portion 212 is formed at the end of the first covering section 210 away from the second covering section 220. The first stop portion 212 is located on one side of the roller core 100 along its own axial direction. The roller core 100 cooperates with the first stop portion 212 to limit the first stop portion 212 in the direction from the first covering section 210 to the second covering section 220.

[0085] In this embodiment, the first stop portion 212 of the first covering section 210 is located on one side of the roller core 100 along its own axial direction. The roller core 100 can limit the first stop portion 212 in the direction from the first covering section 210 to the second covering section 220. In other words, when the idler roller is deformed by cold, the roller core 100 can prevent the first covering section 210 from shrinking in the direction from the first covering section 210 to the second covering section 220. The first covering section 210 can only shrink in the direction from the second covering section 220 to the first covering section 210. That is, the first covering section 210 can only shrink in the direction away from the second covering section 220. This can prevent the first covering section 210 and the second covering section 220 from coming into contact and being damaged during shrinkage.

[0086] Please see Figure 3 and Figure 4 In one optional embodiment, the end of the third covering section 230 opposite to the second covering section 220 forms a second stop 231. The second stop 231 is located on one side of the roller core 100 along its own axial direction. The roller core 100 cooperates with the second stop 231 to limit the second stop 231 in the direction from the third covering section 230 to the second covering section 220.

[0087] In this embodiment, the second stop portion 231 of the third covering section 230 is located on one side of the roller core 100 along its own axial direction. The roller core 100 can limit the second stop portion 231 in the direction from the third covering section 230 to the second covering section 220. In other words, when the idler roller is deformed by cold, the roller core 100 can prevent the third covering section 230 from shrinking in the direction from the third covering section 230 to the second covering section 220. The third covering section 230 can only shrink in the direction from the second covering section 220 to the third covering section 230. That is, the third covering section 230 can only shrink in the direction away from the second covering section 220. This can prevent the third covering section 230 and the second covering section 220 from coming into contact and being damaged during shrinkage.

[0088] Please see Figure 3 and Figure 4 In one optional embodiment, the idler roller further includes a first pressing member 310, which is disposed on the side of the first stop portion 212 away from the roller core 100. The first pressing member 310 is connected to the roller core 100 to clamp and fix the first stop portion 212.

[0089] In this embodiment, the first pressing member 310 is connected to the roller core 100 to clamp and fix the first stop portion 212 of the first covering section 210 between the first pressing member 310 and the roller core 100, thereby fixing the first covering section 210 to the roller core 100. In this way, it is no longer necessary to use a hot-melt method to connect the first covering section 210 to the roller core 100, thus simplifying the connection process.

[0090] In one alternative embodiment, the first pressing member 310 is detachably connected to the roller core 100, which makes it easier to disassemble the first covering section 210 and facilitate the maintenance and replacement of the first covering section 210.

[0091] Please see Figure 3 and Figure 4 In one optional embodiment, the roller further includes a second pressing member 320, which is disposed on the side of the second stop portion 231 away from the roller core 100. The second pressing member 320 is connected to the roller core 100 to clamp and fix the second stop portion 231.

[0092] In this embodiment, the second pressing member 320 is connected to the roller core 100 to clamp and fix the second stop portion 231 of the third covering section 230 between the second pressing member 320 and the roller core 100, thereby fixing the third covering section 230 to the roller core 100. In this way, it is not necessary to use heat fusion to connect the third covering section 230 to the roller core 100, thus simplifying the connection process.

[0093] In one alternative embodiment, the second pressing member 320 is detachably connected to the roller core 100, which makes it easier to disassemble the third covering section 230, so as to facilitate maintenance and replacement of the third covering section 230.

[0094] Please see Figure 4 In one optional embodiment, the roller core 100 includes a support cylinder 110 and a mandrel 120. The cover body 200 wraps around the support cylinder 110, and the mandrel 120 passes through the support cylinder 110. The support cylinder 110 is rotatable around the mandrel 120.

[0095] The two ends of the support cylinder 110 are respectively sealed to the spindle 120. The spindle 120 is provided with a pressure relief channel 121. The pressure relief channel 121 has a first opening 122 and a second opening 123 on the outer surface of the spindle 120. Along the axial direction of the spindle 120, the first opening 122 is located inside the sealing area between the support cylinder 110 and the spindle 120, and the second opening 123 is located outside the sealing area.

[0096] The idler roller also includes a sealing element 400, which is disposed at the second opening 123 and is capable of sealing or opening the second opening 123. For example, the sealing element 400 can be a plug, which is detachably disposed at the second opening 123; or, the sealing element 400 can be a switch valve or a check valve, which is not limited in this application.

[0097] In this embodiment, both ends of the support cylinder 110 are sealed to the mandrel 120 to prevent moisture from the external environment from entering and corroding the support cylinder 110. Furthermore, this embodiment also includes a pressure relief channel 121 within the mandrel 120. During normal operation, the second opening 123 is closed using the sealing element 400 to prevent moisture from entering the support cylinder 110 through the pressure relief channel 121. When the pressure inside the support cylinder 110 becomes excessive, the second opening 123 can be opened using the sealing element 400, allowing the support cylinder 110 to release pressure through the pressure relief channel 121, preventing damage to the support cylinder 110 under high pressure.

[0098] In some embodiments, the roller core 100 further includes a bushing 130, a bearing 140, and a sealing structure 150. The bushing 130 is connected to the inner peripheral wall of the support cylinder 110. The spindle 120 passes through the bushing 130. The bearing 140 and the sealing structure 150 are both disposed between the spindle 120 and the bushing 130, and the bearing 140 and the sealing structure 150 are distributed along the axial direction of the spindle 120. For example, the sealing structure 150 may include at least one of a mechanical seal and an oil seal.

[0099] This application also discloses a conveying device, including:

[0100] The idler rollers described in any of the above embodiments enable the conveying device to have the beneficial effects of the idler rollers in any of the above embodiments, which will not be elaborated further here.

[0101] A flexible conveyor belt is wound around the cover 200. The flexible conveyor belt has mating parts and is used to transport materials. For example, the flexible conveyor belt can be a belt, mesh belt, etc., and this application does not limit it to this.

[0102] The positioning structure 211 engages with the mating part to position the flexible conveyor belt axially along the roller core 100. For example, the mating part may be a positioning protrusion or a positioning groove.

[0103] This application also discloses an electrode recycling device, including the above-described conveying device.

[0104] The foregoing embodiments of this application focus on describing the differences between various embodiments. As long as the different optimization features between embodiments are not contradictory, they can be combined to form better embodiments. For the sake of brevity, these differences will not be elaborated upon here. The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art, under the guidance of this application, can make many modifications without departing from the spirit and scope of the claims, all of which fall within the protection scope of this application.

Claims

1. A carrier roller for use in a conveying device, characterized in that The supporting roller comprises: a roller core (100); a cladding body (200) wrapped around the roller core (100), the cladding body (200) having a thermal expansion coefficient greater than that of the roller core (100), the cladding body (200) comprising a first cladding section (210) and a second cladding section (220) distributed along the axial direction of the roller core (100) and arranged separately; the first cladding section (210) is provided with a positioning structure (211) for positioning a flexible conveying belt along the axial direction of the roller core (100).

2. The idler roller of claim 1, wherein The supporting roller further comprises a third cladding section (230), the second cladding section (220) being located between the first cladding section (210) and the third cladding section (230) along the axial direction of the roller core (100), and the second cladding section (220) and the third cladding section (230) being arranged separately; the third cladding section (230) is provided with the positioning structure (211).

3. The idler roller of claim 2, wherein At least one of the third cladding section (230) and the first cladding section (210) has an avoiding gap (201) with the second cladding section (220) along the axial direction of the roller core (100).

4. The idler roller of claim 3, wherein The width of the avoiding gap (201) is greater than or equal to 2mm along the axial direction of the roller core (100).

5. The idler roller of claim 3, wherein The second cladding section (220) forms a reduced-diameter structure (221) at the end corresponding to the avoiding gap (201).

6. The idler roller of claim 2, wherein The ratio of the length of the first cladding section (210) to the length of the second cladding section (220) is (1 / 40)-(1 / 5) along the axial direction of the roller core (100); and / or, The ratio of the length of the third cladding section (230) to the length of the second cladding section (220) is (1 / 40)-(1 / 5) along the axial direction of the roller core (100).

7. The idler roller of claim 6, wherein The second cladding section (220) is not provided with the positioning structure (211).

8. The idler roller of any one of claims 2 to 7, wherein, The first cladding section (210) forms a first stop portion (212) at one end away from the second cladding section (220), the first stop portion (212) being located on one side of the roller core (100) along the axial direction thereof, and the roller core (100) cooperates with the first stop portion (212) to limit the first stop portion (212) in the direction indicated by the first cladding section (210) to the second cladding section (220); and / or, The third cladding section (230) forms a second stop portion (231) at one end away from the second cladding section (220), the second stop portion (231) being located on one side of the roller core (100) along the axial direction thereof, and the roller core (100) cooperates with the second stop portion (231) to limit the second stop portion (231) in the direction indicated by the third cladding section (230) to the second cladding section (220).

9. The idler roller of claim 8, wherein The idler roller further includes a first pressing member (310), which is disposed on the side of the first stop portion (212) opposite to the roller core (100). The first pressing member (310) is connected to the roller core (100) to clamp and fix the first stop portion (212); and / or, The idler roller also includes a second pressing member (320), which is disposed on the side of the second stop portion (231) away from the roller core (100). The second pressing member (320) is connected to the roller core (100) to clamp and fix the second stop portion (231).

10. The idler roller of any one of claims 1 to 7, wherein, The roller core (100) includes a support cylinder (110) and a mandrel (120). The covering body (200) wraps the support cylinder (110), and the mandrel (120) passes through the support cylinder (110). The support cylinder (110) can rotate around the mandrel (120). The two ends of the support cylinder (110) are respectively sealed to the mandrel (120). The mandrel (120) is provided with a pressure relief channel (121). The pressure relief channel (121) has a first opening (122) and a second opening (123) on the outer surface of the mandrel (120). Along the axial direction of the mandrel (120), the first opening (122) is located inside the sealing area between the support cylinder (110) and the mandrel (120), and the second opening (123) is located outside the sealing area. The idler roller also includes a sealing element (400), which is disposed at the second opening (123) and is capable of blocking or opening the second opening (123).

11. The idler roller of any one of claims 1 to 7, wherein, The positioning structure (211) surrounds the circumference of the covering body (200), and the positioning structure (211) is a positioning groove or a positioning protrusion; and / or, Along the axial direction of the roller core (100), there is a clearance gap (201) between the first covering section (210) and the second covering section (220).

12. The idler roller of any one of claims 1 to 7, wherein, The covering (200) is made of plastic or plastic material, and the roller core (100) is made of metal material.

13. A delivery device characterized by, include: The idler roller as described in any one of claims 1 to 12; A flexible conveyor belt is wound around the cover (200), and the flexible conveyor belt is provided with a mating part; The positioning structure (211) cooperates with the mating part to position the flexible conveyor belt along the axial direction of the roller core (100).

14. An electrode tab recovery apparatus, characterized by, Includes the conveying device as described in claim 13.

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