A roller, a roller assembly and a roller device

Abstract

The present application provides a roller, a roller assembly and a roller device, which relate to the field of transmission technology. The roller comprises a roller body, a first shaft head and a second shaft head. The roller body is made of a lightweight material. The first shaft head and the second shaft head are respectively connected to the two ends of the roller body; the first shaft head and the second shaft head are both made of hard materials. The roller body is made of a lightweight material. The lightweight material is lighter and can reduce the mass of the roller, so that the inertia of the roller body is smaller. The first shaft head and the second shaft head are made of a hard material, which can meet the use strength, so that the roller can reduce the inertia under the condition of meeting the mechanical strength, so that the roller can meet the use environment of high-speed rotation.

Description

Technical Field

[0001] The present application relates to the field of transmission technology, and in particular to a roller, a roller assembly and a roller device. Background Art

[0002] Most existing rollers have a large mass, resulting in excessive inertia, which limits their rotation speed and range of use. Summary of the invention

[0003] The embodiments of the present application provide a roller, a roller assembly and a roller device to improve the current problem of large roller inertia and low rotation speed.

[0004] In the first aspect, an embodiment of the present application provides a roller, including a roller body, a first shaft head and a second shaft head. The roller body is made of a lightweight material, and the first shaft head and the second shaft head are respectively connected to the two ends of the roller body; the first shaft head and the second shaft head are both made of hard materials.

[0005] In the above technical solution, the roller body is made of lightweight material. The lightweight material is lighter and can reduce the mass of the roller, so that the inertia of the roller body is smaller. The first shaft head and the second shaft head are made of hard material, which can meet the use strength. The inertia of the roller is reduced while meeting the mechanical strength, so that the roller can meet the use environment of high-speed rotation.

[0006] In addition, the roller of the first embodiment of the present application also has the following additional technical features:

[0007] In some embodiments of the first aspect of the present application, a first docking hole is provided at one end of the roller body, and a second docking hole is provided at the other end of the roller body; the first shaft head includes a first base and a first shaft portion, the first base is fixed in the first docking hole, and the first shaft portion is located outside the first docking hole; the second shaft head includes a second base and a second shaft portion, the second base is fixed in the second docking hole, and the second shaft portion is located outside the second docking hole.

[0008] In the above technical solution, since the materials of the roller body and the first shaft head and the second shaft head are different, the first base of the first shaft head is fixed in the first docking hole, and the second base of the second shaft head is fixed in the second docking hole, which can enhance the connection strength of the connection between the first shaft head, the second shaft head and the roller body. The first shaft portion is located outside the first docking hole, and the second shaft portion is located outside the second docking hole, which is convenient for connecting the roller with other components.

[0009] In some embodiments of the first aspect of the present application, the roller body is provided with a central hole, and the first docking hole and the second docking hole are connected through the central hole.

[0010] In the above technical solution, the roller body is provided with a central through hole, which can further reduce the weight of the roller body and reduce the inertia of the roller.

[0011] In the second aspect, an embodiment of the present application provides a roller assembly, comprising two mounting seats and the roller provided by the embodiment of the first aspect, wherein the first shaft head is connected to one of the two mounting seats through a bearing, and the second shaft head is connected to the other of the two mounting seats through a bearing.

[0012] In the above technical solution, the roller body in the roller assembly is made of lightweight material. The lightweight material is lighter and can reduce the mass of the roller assembly, so that the overall inertia of the roller assembly is smaller. The first shaft head and the second shaft head are made of hard material, which can have slow use strength. The roller assembly reduces the inertia while meeting the mechanical strength requirements, so that the roller assembly can meet the high-speed rotation use environment.

[0013] In addition, the roller of the second embodiment of the present application also has the following additional technical features:

[0014] In some embodiments of the second aspect of the present application, each mounting seat includes a fixing seat and a cover body, the cover body is detachably connected to the fixing seat, and the fixing seat and the cover body jointly define a mounting hole for installing the first shaft head or the second shaft head; the outer wall of the fixing seat is provided with a notch, the notch passes through one end of the fixing seat, and the cover body is detachably covered on the notch, and when the cover body is separated from the fixing seat, the first shaft head and the second shaft head can be taken out from the notch.

[0015] In the above technical solution, the fixing body and the cover body are detachably connected and jointly define the mounting holes for mounting the first shaft head and the second shaft head. When the roller needs to be disassembled, only the cover body needs to be disassembled without disassembling the fixing seat. When the roller needs to be installed, only the roller needs to be installed on the fixing seat and then the cover body and the fixing seat are detachably connected. The fixing seat does not need to be installed again, which can realize the rapid disassembly and installation of the roller. The cover body is detachably covered on the notch. When the cover body is separated from the fixing seat, the first shaft head and the second shaft head can be taken out of the notch. During the installation or disassembly process, the notch can provide support for the first shaft head and the second shaft head, which is convenient for rapid disassembly and installation.

[0016] In some embodiments of the second aspect of the present application, each mounting seat is provided with a limiting member; the limiting member is used to prevent the bearing from being separated from the mounting seat.

[0017] In the above technical solution, the limiting member is used to prevent the bearing from being separated from the mounting hole, thereby ensuring the normal operation of the roller.

[0018] In some embodiments of the second aspect of the present application, both the first shaft head and the second shaft head are provided with a limiting portion, and the limiting portion is used to prevent the first shaft head portion and the second shaft head from penetrating into the mounting hole.

[0019] In the above technical solution, the limiting part can limit the first shaft head and the second shaft head from moving further into the mounting hole, thereby reducing the axial shaking of the roller during operation.

[0020] In some embodiments of the second aspect of the present application, both mounting seats are provided with an oil nozzle for injecting oil into the interior of the mounting seat.

[0021] In the above technical solution, lubricating oil can be injected into the interior of the mounting seat through the oil nozzle, which can reduce the friction when the roller rotates.

[0022] In a third aspect, an embodiment of the present application provides a roller device, comprising a first base and a second base arranged opposite to each other, a first mounting seat, a second mounting seat, and a roller provided by the embodiment of the first aspect. The first mounting seat comprises a first main body and a first connecting portion, the first connecting portion is connected to the first main body, a through hole is provided on the first base, the first main body is penetrated by the through hole, the first connecting portion is located on a side of the first base away from the second base and is detachably connected to the first base, the first shaft head is mounted on the first main body through a bearing; the second shaft head is connected to the second mounting seat through a bearing, and the second mounting seat is connected to the second base.

[0023] In the above technical solution, when the roller is maintained and replaced, the first mounting seat can be removed from the side of the first substrate away from the second substrate, and axially separated from the first shaft head, and the second shaft head is then axially separated from the second mounting seat, thereby realizing rapid disassembly of the roller and facilitating maintenance and replacement of the roller.

[0024] In some embodiments of the third aspect of the present application, the second mounting seat is detachably connected to a side of the second base body close to the first base body.

[0025] In the above technical solution, the second base is detachably connected to the side of the second base close to the first base, that is, the second mounting seat does not need to be disassembled. When the first mounting seat is axially separated from the first shaft head, the second shaft head can be directly separated from the second mounting seat by applying force to the roller, making the disassembly process faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of a roller provided in an embodiment of the first aspect of the present application;

[0028] Figure 2 A schematic structural diagram of a roller assembly provided in an embodiment of the second aspect of the present application;

[0029] Figure 3It is a structural schematic diagram of an existing roller assembly;

[0030] Figure 4 for Figure 2 A cross-sectional view of

[0031] Figure 5 A schematic structural diagram of a second mounting base provided in accordance with an embodiment of the second aspect of the present application;

[0032] Figure 6 A cross-sectional view of a third mounting base provided in an embodiment of the second aspect of the present application;

[0033] Figure 7 A cross-sectional view of a fourth mounting base provided in an embodiment of the second aspect of the present application;

[0034] Figure 8 A schematic structural diagram of a first roller-passing device provided in an embodiment of the third aspect of the present application;

[0035] Fig. 9 This is a schematic diagram of the first type of roller device after disassembly;

[0036] Fig.10 This is a schematic diagram of the second roller device after disassembly;

[0037] Fig.11 A schematic structural diagram of a second roller device provided in an embodiment of the third aspect of the present application.

[0038] Icon: 100-roller; 10-roller body; 11-first docking hole; 12-second docking hole; 13-center hole; 20-first shaft head; 21-first base; 22-first shaft; 30-second shaft head; 31-second base; 32-second shaft; 1000-roller assembly; 200-mounting seat; 210-fixing seat; 211-mounting part; 212-second position limiting member; 220-cover body; 2 21-shielding body; 222-first limiting member; 230-mounting hole; 240-oil nozzle; 250-limiting member; 300-bearing; 2000-roller device; 400-first base; 500-second base; 600-first mounting seat; 610-first main body; 620-first connecting part; 700-second mounting seat; 710-second main body; 720-second connecting part; A-preset direction. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the embodiments of the present application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0044] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" 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 direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] Example

[0046] like Figure 1 As shown, the first embodiment of the present application provides a roller 100, which includes a roller body 10, a first shaft head 20 and a second shaft head 30. The roller body 10 is made of a lightweight material, and the first shaft head 20 and the second shaft head 30 are respectively connected to the two ends of the roller body 10; the first shaft head 20 and the second shaft head 30 are both made of hard materials. The roller 100 reduces the inertia while meeting the mechanical strength, so that the roller 100 can meet the use environment of high-speed rotation.

[0047] The roller body 10 is made of lightweight material. The lightweight material is lighter and can reduce the mass of the roller 100, so that the inertia of the roller body 10 is smaller. The first shaft head 20 and the second shaft head 30 are the parts where the roller 100 is connected to other components. The first shaft head 20 and the second shaft head 30 are made of hard material. The strength of the hard material is high and can meet the strength of use. In this embodiment, the lightweight material can be aluminum or other composite materials, and the hard material can be steel or other materials with high mechanical strength.

[0048] Further, a first docking hole 11 is provided at one end of the roller body 10, and a second docking hole 12 is provided at the other end of the roller body 10; the first shaft head 20 includes a first base 21 and a first shaft 22, the first base 21 is fixed in the first docking hole 11, and the first shaft 22 is located outside the first docking hole 11; the second shaft head 30 includes a second base 31 and a second shaft 32, the second base 31 is fixed in the second docking hole 12, and the second shaft 32 is located outside the second docking hole 12. Since the roller body 10 and the first shaft head 20 and the second shaft head 30 are made of different materials, the first base 21 of the first shaft head 20 is fixed in the first docking hole 11, and the second base 31 of the second shaft head 30 is fixed in the second docking hole 12, which can enhance the connection strength of the connection between the first shaft head 20 and the second shaft head 30 and the roller body 10, the first shaft 22 is located outside the first docking hole 11, and the second shaft 32 is located outside the second docking hole 12, which facilitates the connection of the roller 100 with other components.

[0049] Optionally, the roller body 10 is provided with a central hole 13, and the first docking hole 11 and the second docking hole 12 are connected through the central hole 13. Providing the roller body 10 with the central hole 13 can further reduce the weight of the roller body 10 and reduce the inertia of the roller 100.

[0050] In this embodiment, the inner diameter of the first docking hole 11 and the inner diameter of the second docking hole 12 are both larger than the inner diameter of the center hole 13. In other specific embodiments, the first docking hole 11, the second docking hole 12 and the center hole 13 can be holes with the same inner diameter to form a straight hole.

[0051] like Figure 2As shown, the second embodiment of the present application provides a roller assembly 1000, comprising two mounting seats 200 and the roller 100 provided by the first embodiment, wherein the first shaft head 20 is connected to one of the two mounting seats 200 through a bearing 300, and the second shaft head 30 is connected to the other of the two mounting seats 200 through a bearing 300. The roller body 10 in the roller assembly 1000 is made of a lightweight material, and the lightweight material is relatively light, which can reduce the mass of the roller assembly 1000, so that the overall inertia of the roller assembly 1000 is relatively small, and the first shaft head 20 and the second shaft head 30 are made of a hard material, which can be used at a slow speed, so that the roller assembly 1000 reduces the inertia under the condition of meeting the mechanical strength, so that the roller assembly 1000 can meet the use environment of high-speed rotation.

[0052] In some use environments of the roller 100, generally, when the roller 100 is used, both ends of the roller 100 are connected to other components (such as a frame, a vertical plate, etc.) and can rotate relative to the other components. Figure 3 As shown, the roller 100 includes a roller body 10 and two mounting seats 200, wherein both ends of the roller body 10 are rotatably connected to one end of a mounting seat 200, respectively, the roller body 10 and the mounting seat 200 are inseparable, and one end of each mounting seat 200 away from the roller body 10 is detachably connected to other components. When the roller 100 needs to be disassembled, the connection relationship between the mounting seat 200 and the other components is disassembled, and the disassembly is time-consuming and inconvenient. When the roller 100 needs to be installed, it is necessary to connect the mounting seat 200 with other components. This process requires repositioning, and the installation is inconvenient.

[0053] In this embodiment, see Figure 2 , Figure 4Each mounting seat 200 includes a fixing seat 210 and a cover body 220, the cover body 220 is detachably connected to the fixing seat 210, and the fixing seat 210 and the cover body 220 jointly define a mounting hole 230 for mounting the first shaft head 20 or the second shaft head 30; the outer wall of the fixing seat 210 is provided with a notch, the notch passes through one end of the fixing seat 210, and the cover body 220 is detachably covered on the notch, and when the cover body 220 is separated from the fixing seat 210, the first shaft head 20 and the second shaft head 30 can be taken out from the notch. The fixing seat 210 and the cover body 220 are detachably connected and jointly define a mounting hole 230 for mounting the first shaft head 20 and the second shaft head 30. When the roller 100 needs to be disassembled, only the cover body 220 needs to be disassembled, and the fixing seat 210 does not need to be disassembled. When the roller 100 needs to be installed, only the roller 100 needs to be installed on the fixing seat 210 and then the cover body 220 is detachably connected to the fixing seat 210, and the fixing seat 210 does not need to be installed again, so that the roller 100 can be quickly disassembled and installed. The cover body 220 is detachably covered on the notch. When the cover body 220 is separated from the fixing seat 210, the first shaft head 20 and the second shaft head 30 can be taken out of the notch. During the installation or disassembly process, the notch can provide support for the first shaft head 20 and the second shaft head 30, so as to facilitate quick disassembly and installation.

[0054] In this embodiment, only the first shaft head 20 of the roller 100, the mounting seat 200 connected to the second shaft head 30 and the connection relationship between the two are introduced. The second shaft head 30 of the roller 100, the mounting seat 200 connected to the second shaft head 30, etc. can refer to the first shaft head 20 and the connection relationship between the first shaft head 20 and the mounting seat 200.

[0055] A central through hole is provided inside the fixing seat 210, and the central through hole runs through both ends of the fixing seat 210. One end of the fixing seat 210 is detachably connected to other components, such as a frame, a vertical plate, etc., and a notch is provided on the peripheral wall of the fixing seat 210.

[0056] The notch is communicated with the central through hole and passes through the other end of the fixing seat 210 . When installing the roller 100, the first shaft head 20 is placed in the notch and supported in the notch by the inner wall of the central through hole, and then the cover body 220 is detachably connected to the fixing seat 210 by bolts, screws, etc. At the same time, the first shaft head 20 is confined in the installation hole 230 defined by the inner wall of the cover body 220 and the inner wall of the central hole 13. It should be noted that the position of the fixing seat 210 remains unchanged. When the first shaft head 20 is placed in the notch, it is also a positioning process for the roller 100. If the installation of the roller 100 is required to be achieved by installing the fixing seat 210, it is necessary to re-position it on the frame, vertical plate, etc. each time the roller 100 is installed, which not only causes inconvenience to the installation of the roller 100, but also has the risk of inaccurate positioning; when the roller 100 needs to be disassembled, the cover body 220 is separated from the fixing seat 210 to expose the notch, and then one end of the roller 100 is taken out of the notch. There is no need to disassemble the fixing seat 210, so that the disassembly of the roller 100 can be achieved quickly. In this embodiment, the cover 220 and the fixing base 210 can be completely separated after being disassembled. In other specific embodiments, the cover 220 and the fixing base 210 can also be partially separated, for example, Figure 5 As shown, one end of the cover body 220 is hinged to the edge of the gap. When the cover body 220 rotates around the hinge axis, it can open or close the gap. The other end of the cover body 220 is detachably connected to the fixing seat 210 by screws, bolts, etc., so that the cover body 220 closes the gap.

[0057] In other specific embodiments, the fixing base 210 may not be provided with a central through hole, such as Figure 6 As shown, the outer wall of the fixing seat 210 is provided with a groove, which runs through one end of the fixing seat 210. The cover body 220 is detachably covered on the notch of the groove. The inner wall of the cover body 220 and the groove wall of the groove jointly define a mounting hole 230. When the cover body 220 is separated from the fixing seat 210, the first shaft head 20 can be taken out of the groove.

[0058] Further, both mounting seats 200 are provided with an oil nozzle 240 for injecting oil into the interior of the mounting seat 200. Lubricating oil can be injected into the interior of the mounting seat 200 through the oil nozzle 240, which can reduce the friction when the roller 100 rotates.

[0059] Further, see Figure 4 Each mounting seat 200 is provided with a stopper 250, which is used to prevent the bearing 300 from being separated from the mounting seat 200. The stopper 250 prevents the bearing 300 from being separated from the mounting hole 230, thereby ensuring the normal operation of the roller 100.

[0060] In this embodiment, the stopper 250 is an annular member provided at the end of the mounting seat 200. Optionally, the cover 220 and the fixing seat 210 are both detachably connected to the stopper 250, which can not only prevent the bearing 300 from being separated from the mounting hole 230, but also strengthen the connection between the cover 220 and the fixing body. In other specific embodiments, the stopper 250 can also be integrally formed with the cover 220 and / or the fixing seat 210, such as Figure 7 As shown, the cover body 220 includes a shielding body 221 and a first limiting member 222, and the fixing seat 210 includes a mounting portion 211 and a second limiting member 212. After the cover body 220 is connected to the fixing seat 210, the first limiting member 222 and the second limiting member 212 together constitute a limiting member 250 that limits the first limiting portion from being separated from the mounting hole 230.

[0061] It should be noted that the first shaft head 20 is connected to the mounting hole 230 through the bearing 300, and the bearing 300 can rotate relative to the hole wall of the mounting hole 230 in the mounting hole 230, which can not only realize the rotation of the roller 100 but also avoid direct friction between the first shaft head 20 and the mounting hole 230, thereby improving the service life of the roller 100. In this embodiment, one end of the first shaft head 20 is inserted into the inner hole of the bearing 300 from one end of the bearing 300, and extends from the other end of the bearing 300. A retaining ring is provided at one end of the first shaft head 20 extending from the bearing 300, and the retaining ring can prevent the first shaft head 20 from being separated from the bearing 300. It should be noted that in this embodiment, the relative position of the first shaft head 20 and the inner ring of the bearing 300 is fixed.

[0062] In other specific embodiments, the first shaft head 20 can also be directly rotatably connected to the mounting seat 200, and a first limiting portion is set on the first shaft head 20, and the first limiting portion is located in the mounting hole 230. The limiting member 250 can limit the first limiting portion from detaching from the mounting hole 230.

[0063] Further, continue to refer to Figure 2 The first shaft head 20 and the second shaft head 30 are both provided with a limiting portion, which is used to prevent the first shaft head 20 and the second shaft head 30 from penetrating into the mounting hole 230. The limiting portion can limit the first shaft head 20 and the second shaft head 30 from further moving in the direction of penetrating into the mounting hole 230, thereby reducing the axial shaking of the roller 100 during operation.

[0064] In the present embodiment, the limiting portion is a conical surface provided on the first shaft head 20 or the second shaft head 30. It can be understood that the first shaft head 20 and the second shaft head 30 both have a conical section, the small end of the conical section is located in the mounting hole 230, and the outer diameter of the large end of the conical section is greater than the inner diameter of the central through hole of the limiting member 250. The limiting member 250 is sleeved on the outer side of the conical surface, so the interaction between the limiting member 250 and the conical surface can limit the first shaft head 20 or the second shaft head 30 from further moving into the mounting hole 230. Of course, in other specific embodiments, the limiting portion can also be other structural forms, such as the limiting portion being an annular protrusion provided on the outer side of the first shaft head 20 and the second shaft head 30.

[0065] like Figure 8 As shown, the third embodiment of the present application provides a roller device 2000, which includes a first base 400 and a second base 500 arranged relatively, a first mounting seat 600, a second mounting seat 700 and a roller 100 provided in the first embodiment. The first mounting seat 600 includes a first main body 610 and a first connecting portion 620, the first connecting portion 620 is connected to the first main body 610, a through hole is provided on the first base 400, the first main body 610 is penetrated through the through hole, the first connecting portion 620 is located on a side of the first base 400 away from the second base 500 and is detachably connected to the first base 400, the first shaft head 20 is mounted on the first main body 610 through the bearing 300, and the first mounting seat 600 can be axially separated from the first shaft head 20; the second shaft head 30 is connected to the second mounting seat 700 through the bearing 300, and the second mounting seat 700 is connected to the second base 500. When maintaining and replacing the roller 100, the first mounting seat 600 can be removed from the side of the first base 400 away from the second base 500, and axially separated from the first shaft head 20, and the second shaft head 30 is then axially separated from the second mounting seat 700, thereby achieving rapid disassembly of the roller 100 and facilitating maintenance and replacement of the roller 100.

[0066] Further, the second mounting seat 700 is detachably connected to the side of the second base 500 close to the first base 400. The second base 500 is detachably connected to the side of the second base 500 close to the first base 400, that is, the second mounting seat 700 does not need to be disassembled. When the first mounting seat 600 is axially separated from the first shaft head 20, the second shaft head 30 can be directly separated from the second mounting seat 700 by applying a force to the roller 100, so that the disassembly process is faster.

[0067] like Fig. 9As described above, when the roller 100 needs to be repaired or replaced, the first mounting seat 600 is disassembled and moved in the preset direction A so that the first mounting seat 600 is axially disengaged from the first shaft head 20. When the roller 100 is moved in the preset direction A, the second shaft head 30 can be disengaged from the second mounting seat 700, thereby achieving the disassembly of the roller 100. Of course, in some embodiments, if the inner diameter of the through hole on the first base body 400 is larger than the outer diameter of the roller body 10 of the roller 100, the second shaft head 30 can be disengaged from the second mounting seat 700 while the first mounting seat 600 is removed in the preset direction A. Fig.10 shown.

[0068] In other specific embodiments, Fig.11 As shown, the second mounting seat 700 includes a second main body portion 710 and a second connecting portion 720, the second connecting portion 720 is connected to the second main body portion 710, a through hole is provided on the second base 500, the second main body portion 710 is passed through the through hole, the second connecting portion 720 is located on the side of the second base 500 away from the first base 400 and is detachably connected to the second base 500, the second shaft head 30 is installed on the second main body portion 710 through the bearing 300, and the second mounting seat 700 can be axially detached from the second shaft head 30. When the roller 100 is maintained and replaced, the first mounting seat 600 can be removed from the side of the first base 400 away from the second base 500, and axially separated from the first shaft head 20, and the second shaft head 30 can then be axially separated from the second mounting seat 700, or the second mounting seat 700 can be removed from the side of the second base 500 away from the first base 400, and axially separated from the second shaft head 30, and the first shaft head 20 can then be removed from the first mounting seat 600 to pass the roller 100.

[0069] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A roller assembly, It is characterized in that include: A roller body, wherein the roller body is made of a lightweight material; First axis head; as well as A second shaft head, wherein the first shaft head and the second shaft head are respectively connected to two ends of the roller body; the first shaft head and the second shaft head are both made of hard material; Two mounting seats, the first shaft head is connected to one of the two mounting seats through a bearing, and the second shaft head is connected to the other of the two mounting seats through a bearing; Each mounting seat comprises a fixing seat and a cover body, wherein the cover body is detachably connected to the fixing seat, and the fixing seat and the cover body jointly define a mounting hole for mounting the first shaft head or the second shaft head; The outer wall of the fixing seat is provided with a notch, the notch passes through one end of the fixing seat, the cover body is detachably covered on the notch, and when the cover body is separated from the fixing seat, the first shaft head and the second shaft head can be taken out from the notch; The two mounting seats are both provided with oil nozzles for injecting oil into the interior of the mounting seats.

2. The roller assembly according to claim 1, It is characterized in that A first docking hole is provided at one end of the roller body, and a second docking hole is provided at the other end of the roller body; The first shaft head includes a first base portion and a first shaft portion, the first base portion is fixedly arranged in the first docking hole, and the first shaft portion is located outside the first docking hole; The second shaft head includes a second base portion and a second shaft portion, the second base portion is fixedly disposed in the second docking hole, and the second shaft portion is located outside the second docking hole.

3. The roller assembly according to claim 2, It is characterized in that The roller body is provided with a central hole, and the first docking hole and the second docking hole are connected through the central hole.

4. The roller assembly according to claim 3, It is characterized in that A limiting member is provided on each mounting seat; the limiting member is used to prevent the bearing from being separated from the mounting seat.

5. The roller assembly according to claim 4, It is characterized in that The first shaft head and the second shaft head are both provided with a limiting portion, and the limiting portion is used to prevent the first shaft head and the second shaft head from penetrating into the mounting hole.

6. A roller device, It is characterized in that include: A first substrate and a second substrate arranged opposite to each other; And the roller assembly according to any one of claims 1 to 5; The two mounting seats are respectively a first mounting seat and a second mounting seat; The first mounting seat includes a first main body and a first connecting portion, the first connecting portion is connected to the first main body, the first base is provided with a through hole, the first main body is passed through the through hole, the first connecting portion is located on a side of the first base away from the second base and is detachably connected to the first base, and the first shaft head is installed on the first main body through a bearing; The second shaft head is connected to the second mounting seat via a bearing, and the second mounting seat is connected to the second base.

7. The roller device according to claim 6, It is characterized in that The second mounting seat is detachably connected to a side of the second base body close to the first base body.

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