Composite roller

Abstract

The utility model belongs to the technical field of composite rollers, and particularly relates to a composite roller. Comprising a roller body sleeved with a roller sleeve; the roller shafts are arranged at the front and rear ends of the roller body; the dismounting assembly is arranged on the roller sleeve and used for locking the roller sleeve on the outer side of the roller body; the disassembling and assembling assembly comprises a left rotating cover, a right rotating cover and a rotating shaft, the rotating shaft is arranged on the left rotating cover; the connecting plate is rotationally arranged on the rotating shaft; the right rotating cover is arranged on the connecting plate, the right rotating cover covers the outer right side of the roller sleeve, and the right rotating cover is in contact with the left rotating cover; and the locking part is arranged on the left rotating cover and the right rotating cover and is used for fixing the left rotating cover and the right rotating cover into a whole. The utility model provides a composite roller with a detachable and reusable roller sleeve.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite rollers, in particular to a composite roller. Background Art

[0002] Rollers are the main working parts and tools on the rolling mill that cause continuous plastic deformation of metal. Rollers are important parts of rolling mills. Rollers are divided into integral rolls and combined rolls. Combined rolls are composed of roll cores and roll sleeves. Among them, the roll sleeve is nested outside the roll core and is driven by the roll core to directly contact the steel, causing the steel to undergo plastic deformation.

[0003] The composite roll can not only meet the requirements of the rolling mill for the wear resistance and thermal fatigue resistance of the roll body, but also ensure the toughness of the core and roll neck.

[0004] The existing roller core and roller sleeve are mostly of one-piece design. The roller core is prone to cracks or wear during use. Once the roller core surface is severely worn, the entire roller core needs to be replaced. In this way, the roller is easily scrapped, which is not only costly but also labor-intensive, and is not conducive to subsequent maintenance. Utility Model Content

[0005] The utility model aims to solve the above-mentioned technical problems and provides a composite roller with a detachable roller sleeve for repeated use.

[0006] In view of this, the utility model provides a composite roller, comprising:

[0007] A roller body, the outer side of which is provided with a roller sleeve;

[0008] Roller shafts are arranged at the front and rear ends of the roller body;

[0009] A disassembly assembly is provided on the roll sleeve and is used to lock the roll sleeve to the outside of the roll body;

[0010] The disassembly assembly includes:

[0011] A left rotating cover is arranged on the left side outside the roller sleeve;

[0012] A rotating shaft is arranged on the left rotating cover;

[0013] A connecting plate is rotatably arranged on the rotating shaft;

[0014] A right rotating cover is arranged on the connecting plate, the right rotating cover covers the right side of the roller sleeve, and the right rotating cover is in contact with the left rotating cover;

[0015] The locking part is arranged on the left rotating cover and the right rotating cover, and is used for fixing the left rotating cover and the right rotating cover into one body.

[0016] In the above technical solution, further, the locking portion includes:

[0017] A convex block is arranged at the lower end of the left rotating cover;

[0018] A locking groove is provided on the right side of the bottom of the protrusion;

[0019] A mounting plate is arranged at the lower end of the right rotating cover, and the mounting plate is located in the locking groove;

[0020] Threaded holes are provided on the front and rear sides of the mounting plate;

[0021] The locking holes are arranged at the front and rear sides of the protrusion, and the locking holes are connected with the locking grooves;

[0022] The bolt is provided with a threaded hole and a locking hole in sequence, and is used to fix the mounting plate in the locking groove.

[0023] In any of the above technical solutions, further, the inner diameter of the locking hole is provided with a thread that matches the bolt thread.

[0024] In any of the above technical solutions, further, keyways are provided on both the front and rear sides of the roller body, and a flat key is provided on the roller shaft. The flat key is located in the keyway and has an interference fit with the keyway.

[0025] In any of the above technical solutions, further, a plurality of mounting holes are evenly spaced along the circumferential direction on the roller shaft, and the roller body is provided with positioning holes having the same number as the mounting holes, the positioning holes are connected to the mounting holes, and rivets are inserted between adjacent mounting holes and positioning holes.

[0026] In any of the above technical solutions, further, a protective layer is provided on the roller body, and the protective layer includes a smooth layer, a high hardness layer, a wear-resistant layer, and a corrosion-resistant layer from top to bottom. The inner side of the corrosion-resistant layer is connected to the roller body, the wear-resistant layer is connected to the corrosion-resistant layer, the high hardness layer is connected to the wear-resistant layer, and the smooth layer is connected to the high hardness layer.

[0027] The beneficial effects of the utility model are:

[0028] 1. By releasing the locking parts of the left rotating cover and the right rotating cover and rotating the left rotating cover and the right rotating cover, the tight connection between the roll sleeve and the roll body is released, allowing the roll sleeve to be easily installed on or removed from the roll body, making the replacement or maintenance of the roll sleeve simple and efficient;

[0029] 2. Release the bolts to allow the mounting plate to move, rotate the right rotating cover to disengage it from the bump, so that the mounting plate can be disengaged from the locking groove, and the roll sleeve can be removed or installed from the roll body, thus ensuring the safe connection of the roll sleeve and also ensuring a quick and easy installation and removal process;

[0030] 3. The interference fit between the roller shaft and the roller body ensures a stable connection between the roller shaft and the roller body, preventing them from loosening or sliding relative to each other during operation, making it easy to separate the roller shaft from the roller body and prevent the roller body from being severely worn. The roller body can be removed separately, the roller shaft can be retained, and the roller shaft can be reused, saving resources;

[0031] 4. The installation holes and positioning holes are drilled with rivets to fix the roller shaft and roller body together, ensuring the correct position and stability between the roller shaft and the roller body, so that the composite roller can accurately transmit force and withstand pressure during operation, ensuring the rolling effect and quality;

[0032] 5. The layer-by-layer design of the protective layer makes the composite roller have excellent wear resistance, corrosion resistance and impact resistance, thereby improving its efficiency and stability in the rolling process and extending the service life of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0034] Figure 2 It is a plan view of the utility model;

[0035] Figure 3 It is a three-dimensional structural schematic diagram of the utility model in the unlocked state of the disassembly and assembly components;

[0036] Figure 4 It is an exploded view of the disassembly and assembly components of the utility model;

[0037] Figure 5 It is an exploded view of the locking portion of the utility model;

[0038] Figure 6 It is a plan view of the protective layer of the utility model;

[0039] The reference numerals in the figure are: 1. roller body; 11. roller sleeve; 2. roller shaft; 3. disassembly and assembly component; 31. left rotating cover; 32. rotating shaft; 33. connecting plate; 34. right rotating cover; 35. locking part; 351. protrusion; 352. locking groove; 353. mounting plate; 354. threaded hole; 355. locking hole; 356. bolt; 4. thread; 5. keyway; 6. flat key; 7. mounting hole; 8. positioning hole; 9. rivet; 10. protective layer; 101. smooth layer; 102. high hardness layer; 103. wear-resistant layer; 104. corrosion-resistant layer. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions 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. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0041] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0042] Embodiment 1:

[0043] like Figure 1-Figure 4 As shown, this embodiment provides a composite roller, comprising:

[0044] A roller body 1, the outer side of which is provided with a roller sleeve 11;

[0045] Roller shaft 2, arranged at the front and rear ends of the roller body 1;

[0046] The disassembly assembly 3 is arranged on the roll sleeve 11 and is used to lock the roll sleeve 11 on the outer side of the roll body 1;

[0047] The disassembly assembly 3 comprises:

[0048] The left rotating cover 31 is arranged on the left side outside the roller sleeve 11;

[0049] The rotating shaft 32 is disposed on the left rotating cover 31;

[0050] The connecting plate 33 is rotatably disposed on the rotating shaft 32;

[0051] The right rotating cover 34 is disposed on the connecting plate 33. The right rotating cover 34 covers the right side of the roller sleeve 11. The right rotating cover 34 contacts the left rotating cover 31.

[0052] The locking portion 35 is disposed on the left rotating cover 31 and the right rotating cover 34 , and is used to fix the left rotating cover 31 and the right rotating cover 34 into one body.

[0053] In the present technical solution, the working principle of the composite roll is based on the design of the disassembly assembly 3, which allows the roll cover 11 to be easily installed on or removed from the roll body 1. First, the roll cover 11 is fixed to the outside of the roll body 1 by the connection of the left rotating cover 31 and the right rotating cover 34. When the roll cover 11 needs to be replaced or repaired, the operator can release the locking part of the left rotating cover 31 and the right rotating cover 34. By rotating the left rotating cover 31 and the right rotating cover 34, the connecting plate 33 will also rotate accordingly. This rotational movement will release the tight connection between the roll cover 11 and the roll body 1. Then, the roll cover 11 can be easily removed from the roll body 1. On the contrary, if the roll cover 11 needs to be installed, the operator places the roll cover 11 on the roll body 1 and locks it to the roll body 1 by rotating the left rotating cover 31 and the right rotating cover 34. This design makes the replacement or maintenance of the roll cover 11 simple and efficient, while ensuring the safe connection between the roll cover 11 and the roll body 1.

[0054] Embodiment 2:

[0055] This embodiment provides a composite roller, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0056] like Figure 1-Figure 4 As shown, in this embodiment, the locking portion 35 is optimized to include:

[0057] A protrusion 351 is provided at the lower end of the left rotating cover 31;

[0058] The locking groove 352 is provided at the right side of the bottom of the protrusion 351;

[0059] A mounting plate 353 is disposed at the lower end of the right rotating cover 34, and the mounting plate 353 is located in the locking groove 352;

[0060] The threaded holes 354 are provided on the front and rear sides of the mounting plate 353;

[0061] The locking hole 355 is formed at the front and rear sides of the protrusion 351, and the locking hole 355 is connected with the locking groove 352;

[0062] The bolt 356 passes through the threaded hole 354 and the locking hole 355 in sequence, and is used to fix the mounting plate 353 in the locking groove 352 .

[0063] In the present technical solution, when the roll sleeve 11 needs to be installed or removed, the operator first releases the bolt 356 to allow the mounting plate 353 to move, and then they rotate the right rotating cover 34 to disengage it from the protrusion 351, thereby disengaging the mounting plate 353 from the locking groove 352. At this time, the roll sleeve 11 can be removed from or installed on the roll body 1. Once the installation or removal is completed, the operator replaces the mounting plate 353 into the locking groove 352 and secures it with the bolt 356. This design ensures the safe connection of the roll sleeve 11, while also ensuring a quick and easy installation and removal process.

[0064] like Figure 4 As shown, in this embodiment, the locking hole 355 is optimized to have a thread 4 on its inner diameter that matches the thread of the bolt 356 .

[0065] In the present technical solution, the thread 4 in the locking hole 355 enables the bolt 356 to be fixedly connected to the thread 4 of the locking hole 355, thereby ensuring the connection between the mounting plate 353 and the protrusion 351, making the fixed installation of the left rotating cover 31 and the right rotating cover 34 more secure and increasing stability.

[0066] Embodiment 3:

[0067] This embodiment provides a composite roller, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0068] like Figure 1 , Figure 3 and Figure 5 As shown, in this embodiment, the roller body 1 is optimized to have keyways 5 on both the front and rear sides thereof, and the roller shaft 2 is provided with a flat key 6, which is located in the keyway 5 and has an interference fit with the keyway 5.

[0069] like Figure 1 , Figure 3 and Figure 5 As shown, in this embodiment, it is optimized that a plurality of mounting holes 7 are evenly spaced along the circumferential direction on the roller shaft 2, and the roller body 1 is provided with positioning holes 8 having the same number as the mounting holes 7, the positioning holes 8 are connected to the mounting holes 7, and rivets 9 are passed between adjacent mounting holes 7 and positioning holes 8.

[0070] In the technical solution, firstly, in the design of the rolling roller, a flat key 6 is provided on the roller shaft 2, and a key groove 5 is provided on the front and rear sides of the roller body 1. The key groove 5 is used to accommodate the flat key 6, and the flat key 6 is interference fit with the key groove 5. This design ensures a firm connection between the roller shaft 2 and the roller body 1, preventing them from loosening or sliding relative to each other during operation. At the same time, it is easy to disassemble the flat key 6 and the key groove 5, so as to separate the roller shaft 2 from the roller body 1, and prevent the roller body 1 from being severely worn. In this way, the roller body 1 can be disassembled alone, and the roller shaft 2 can be retained and reused, thereby saving resources. Source; secondly, a plurality of mounting holes 7 are evenly spaced along the circumferential direction on the roller shaft 2, and a number of positioning holes 8 equal to the number of the mounting holes 7 are provided on the roller body 1. These mounting holes 7 and positioning holes 8 are connected by rivets 9. During the installation process, the mounting holes 7 of the roller shaft 2 are correspondingly docked with the positioning holes 8 of the roller body 1, and then they are fixed together by rivets 9. This positioning and fixing mechanism ensures the correct position and stability between the roller shaft 2 and the roller body 1, so that the composite rolling mill can accurately transmit force and withstand pressure during operation, thereby ensuring the rolling effect and quality.

[0071] Embodiment 4:

[0072] This embodiment provides a composite roller, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0073] like Figure 1 , Figure 3 and Figure 6 As shown, in this embodiment, the roller body 1 is optimized and provided with a protective layer 10, and the protective layer 10 includes a smooth layer 101, a high hardness layer 102, a wear-resistant layer 103, and a corrosion-resistant layer 104 from top to bottom, the inner side of the corrosion-resistant layer 104 is connected to the roller body 1, the wear-resistant layer 103 is connected to the corrosion-resistant layer 104, the high hardness layer 102 is connected to the wear-resistant layer 103, and the smooth layer 101 is connected to the high hardness layer 102.

[0074] In the present technical solution, firstly, the smooth layer 101 is located on the top of the protective layer 10, and its function is to provide the smoothness of the surface of the roller body 1 to reduce the friction when contacting with the rolled piece, thereby reducing energy loss and wear. Secondly, the high hardness layer 102 is closely connected under the smooth layer 101, and its purpose is to provide the hardness of the surface of the roller body 1 to enhance its wear resistance and impact resistance, thereby extending the service life of the roller. Next, the wear-resistant layer 103 is connected under the high hardness layer 102, and is designed to withstand the wear of the rolled piece on the surface of the roller body 1, and protect the high hardness layer 102 and the roller body 1 itself from excessive wear. Finally, the corrosion-resistant layer 104 is located at the bottom of the protective layer 10, connected to the inner side of the roller body 1, and its main function is to prevent the corrosive substances from corroding the inner side of the roller body 1, and protect the internal structure and stability of the roller. The layered design of the protective layer 10 makes the composite roller have excellent wear resistance, corrosion resistance and impact resistance, thereby improving its use efficiency and stability in the rolling process, and extending the service life of the roller.

[0075] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A composite roller, characterized in that: include: A roller body (1) having a roller sleeve (11) sleeved on its outer side; A roller shaft (2) is arranged at the front and rear ends of the roller body (1); A disassembly assembly (3) is arranged on the roll sleeve (11) and is used to lock the roll sleeve (11) on the outside of the roll body (1); The disassembly and assembly component (3) comprises: A left rotating cover (31) is arranged on the left side outside the roller sleeve (11); A rotating shaft (32) is arranged on the left rotating cover (31); A connecting plate (33) rotatably disposed on the rotating shaft (32); A right rotating cover (34) is arranged on the connecting plate (33), the right rotating cover (34) covers the right side of the roller sleeve (11), and the right rotating cover (34) is in contact with the left rotating cover (31); The locking portion (35) is arranged on the left rotating cover (31) and the right rotating cover (34) and is used to fix the left rotating cover (31) and the right rotating cover (34) into one body.

2. A composite roller according to claim 1, characterized in that: The locking portion (35) comprises: A protrusion (351) is arranged at the lower end of the left rotating cover (31); A locking groove (352) is provided on the right side of the bottom of the protrusion (351); A mounting plate (353) is arranged at the lower end of the right rotating cover (34), and the mounting plate (353) is located in the locking groove (352); Threaded holes (354) are provided on both the front and rear sides of the mounting plate (353); A locking hole (355) is provided at the front and rear sides of the protrusion (351), and the locking hole (355) is communicated with the locking groove (352); The bolt (356) is sequentially passed through the threaded hole (354) and the locking hole (355) and is used to fix the mounting plate (353) in the locking groove (352).

3. A composite roller according to claim 2, characterized in that: The inner diameter of the locking hole (355) is provided with a thread (4) that matches the thread of the bolt (356).

4. A composite roller according to claim 1, characterized in that: The roller body (1) is provided with keyways (5) on both the front and rear sides thereof, and the roller shaft (2) is provided with a flat key (6). The flat key (6) is located in the keyway (5) and is interference fit with the keyway (5).

5. A composite roller according to claim 4, characterized in that: The roller shaft (2) is provided with a plurality of mounting holes (7) at even intervals in the circumferential direction, the roller body (1) is provided with positioning holes (8) the same number as the mounting holes (7), the positioning holes (8) are connected to the mounting holes (7), and rivets (9) are provided between adjacent mounting holes (7) and positioning holes (8).

6. A composite roller according to claim 1, characterized in that: The roller body (1) is provided with a protective layer (10), and the protective layer (10) comprises, from top to bottom, a smooth layer (101), a high hardness layer (102), a wear-resistant layer (103), and a corrosion-resistant layer (104); the inner side of the corrosion-resistant layer (104) is connected to the roller body (1), the wear-resistant layer (103) is connected to the corrosion-resistant layer (104), the high hardness layer (102) is connected to the wear-resistant layer (103), and the smooth layer (101) is connected to the high hardness layer (102).

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