Roll shaft and roller connecting assembly and rolling mill
By designing a roll-roller and roll shaft connection assembly including mounting grooves, connecting holes and clamps, the complex locking method between the rolling mill in the prior art is solved, and the stable connection between the roll and the roll shaft and the simplified disassembly and assembly process is realized, and the cost is reduced.
Patent Information
- Application Number
- CN202421939441.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In existing rolling mills, the locking method between the roll shaft and the roll is complicated, the disassembly and assembly process is cumbersome, and the cost is high.
A roller shaft and roller connection assembly is designed. By providing installation grooves and connection holes on the roller shaft, corresponding connection holes and anti-rotation planes are provided on the roller. Combined with the design of the first connecting piece and the clamping plate, the axial and radial fixation between the roller and the roller shaft is realized, and the disassembly and assembly process is simplified.
The stable connection between the rolling roller and the roller shaft is achieved, the disassembly and assembly process is simplified, and the need for hydraulic drive is not required. It has a simple structure, convenient operation and low cost.
Smart Images
Figure CN223028103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolling mills, and more specifically, to a connecting component between a roll shaft and a roll and a rolling mill. Background Art
[0002] A rolling mill includes a roll shaft and a roll. The roll shaft is connected to the roll, and the two move together. After the roll is used for a period of time, wear will occur. In order to facilitate the replacement of the roll, the existing roll shaft and roll generally adopt a detachable connection method. Specifically, one axial end of the roll is inserted into the roll shaft. Then, a hydraulic locking device on the roll shaft provides a driving force to make each bracket arranged along the circumferential direction of the roll move closer and tighten, so as to realize the locking of the roll and the roll shaft. The structure is complex, the disassembly and assembly process is cumbersome, and the cost is high. Summary of the Utility Model
[0003] The utility model aims to solve the technical problem of the complex locking method of the existing roll shaft and roll.
[0004] On the one hand, the utility model provides a connecting component between a roll shaft and a roll, including a roll shaft body, a roll body and a connecting mechanism. An installation groove matching with one axial end of the roll body is arranged on the roll shaft body. The roll body is inserted into the installation groove. A first connecting hole penetrating along the radial direction is arranged at one end of the roll body inserted into the installation groove. A second connecting hole communicating with the first connecting hole is arranged on the circumferential side wall of the roll shaft body. The connecting mechanism includes a first connecting piece and a clamping plate. One end of the first connecting piece is used to enter and exit the first connecting hole through the second connecting hole. Two clamping grooves arranged at intervals along the axial direction are arranged on the circumferential side wall of the other end of the first connecting piece. The clamping plate is located on one side of the first connecting piece. The clamping plate is rotatably connected to the roll shaft body around a rotation point. The clamping plate is used to rotate around the rotation point to insert into one of the clamping grooves when the first connecting piece is inserted into the first connecting hole. The clamping plate is also used to rotate around the rotation point to insert into the other clamping groove when the first connecting piece exits the first connecting hole.
[0005] Optionally, the second connecting hole is a stepped hole and has a limiting step surface. The cross-sectional dimension of one end of the second connecting hole communicating with the first connecting hole is larger than that of the other end. The first connecting piece is in a stepped shape. One end of the first connecting piece away from the clamping groove is a large end part. The first connecting piece is used to move so that the large end part moves from the first connecting hole to the second connecting hole and abuts against the limiting step surface.
[0006] Optionally, the connecting mechanism further includes a second connecting piece, and the second connecting piece is used to firmly connect the clamping plate and the roll shaft body after the clamping plate is inserted into the clamping groove.
[0007] Optionally, one end of the card board is rotatably connected to the roller shaft body around the rotation point, and the end of the card board away from the rotation point is configured as a hand-held end.
[0008] Optionally, a notch is provided in a portion of the card board between its two ends, and the second connecting member is used to pass through the notch and the roller shaft body.
[0009] Optionally, the connecting mechanism further includes a handle, and the handle is connected to the end of the first connecting member provided with the card slot.
[0010] Optionally, two second connection holes are provided on the roller shaft body, the two second connection holes are respectively communicated with two ends of the first connection hole, and the first connecting members of the two connecting mechanisms are respectively used to pass through the corresponding second connection holes and insert into the same first connection hole.
[0011] Optionally, two anti-rotation planes are oppositely arranged on the circumferential side wall at one end of the roll body, and two ends of the first connection hole respectively penetrate through the two anti-rotation planes.
[0012] Optionally, the roller shaft body includes a telescopic universal joint shaft and a sliding sleeve. An installation cavity with an open end is provided at one axial end of the telescopic universal joint shaft. The sliding sleeve is placed in the installation cavity from the open end. A through hole axially penetrating the sliding sleeve is provided on the sliding sleeve, and the through hole is communicated with the end of the installation cavity away from the open end to form the installation groove; a large hole extending radially along the circumferential side wall of the sliding sleeve is provided, and a small hole extending radially along the circumferential side wall of the telescopic universal joint shaft is provided. The large hole and the small hole are communicated with each other to form the second connection hole.
[0013] On the other hand, the present invention proposes a rolling mill, including the above-mentioned roller shaft and roll connection assembly.
[0014] The roller shaft and roll connection assembly and the rolling mill of the present invention have at least the following advantages compared with the prior art:
[0015] When it is necessary to connect the roll body and the roll shaft body, one axial end of the roll body is inserted into the installation groove on the roll shaft body to achieve the axial fixation of the roll body and the roll shaft body. Then, a first connecting piece such as a plug rod passes through the second connecting hole of the roll shaft body and inserts into the first connecting hole of the roll body, and the clamping groove on the first connecting piece close to the roll body corresponds to the clamping plate. Rotate the clamping plate so that the clamping plate inserts into the clamping groove. Since the first connecting hole and the second connecting hole are arranged along the radial direction of the roll body (or the roll shaft body), the radial fixation of the roll body and the roll shaft body is achieved. By fixing the roll body and the roll shaft body in different directions of the axial and radial directions, the stable connection between the two is realized. And the first connecting piece is clamped with the clamping plate on the roll shaft body through the clamping groove on it to limit the first connecting piece from radially detaching from the roll body and the roll shaft body, further ensuring the connection stability between the roll shaft body and the roll body. When it is necessary to disassemble the roll body, first rotate the clamping plate so that it disengages from the clamping groove on the first connecting piece, and then move the first connecting piece outwards to make the first connecting piece withdraw from the first connecting hole. The clamping groove on the first connecting piece far from the roll body corresponds to the clamping plate. Rotate the clamping plate to insert it into the clamping groove, and then pull out the roll body axially. And the clamping groove on the first connecting piece is clamped with the clamping plate on the roll shaft body to prevent the first connecting piece from being scattered and lost. In addition, the whole disassembly and assembly process does not require the use of hydraulic drive, with a simple structure, convenient operation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is an exploded structural schematic diagram of the roll shaft and roll connection assembly according to an embodiment of the present utility model;
[0017] Figure 2 is a partial structural schematic diagram of the roll shaft and roll connection assembly according to an embodiment of the present utility model;
[0018] Figure 3 is Figure 2 an enlarged schematic view of part A in
[0019] Figure 4 is Figure 2 a structural schematic diagram from another perspective; wherein the dashed line represents another movement state of the clamping plate;
[0020] Figure 5 is a cross-sectional view of the roll shaft and roll connection assembly according to an embodiment of the present utility model. Among them, the first connecting pieces of the two connecting mechanisms are respectively in different positions;
[0021] Figure 6 is a cross-sectional view of the roll shaft and roll connection assembly according to an embodiment of the present utility model from another perspective. Among them, the first connecting pieces of the two connecting mechanisms are respectively in different positions;
[0022] Figure 7 is a structural schematic diagram of the first connecting piece according to an embodiment of the present utility model.
[0023] Description of the reference numerals:
[0024] 1. Roller shaft body; 11. Telescopic universal coupling shaft; 12. Sliding sleeve; 13. Installation groove; 14. Second connection hole; 141. Limit step surface; 2. Roll body; 21. First connection hole; 22. Anti-rotation plane; 3. Connection mechanism; 31. First connecting piece; 311. Card slot; 312. Large end portion; 32. Card plate; 321. Hand-held end; 322. Notch; 33. Second connecting piece; 34. Handle. Detailed implementation manners
[0025] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following describes in detail the specific embodiments of the present utility model with reference to the accompanying drawings.
[0026] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "matching" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0027] In addition, it should also be noted that in the description of the present utility model, it should be noted that the terms indicating directions such as "upper", "lower", "front", "rear" in each embodiment are only for simplifying the description of the positional relationship based on the drawings of the specification, and do not represent that the indicated elements and devices must be operated according to the specific directions and limited operations and methods and structures in the specification. Such direction terms do not constitute a limitation to the present utility model.
[0028] An XYZ coordinate system is established herein. Among them, the X-axis represents the front-rear direction, the positive direction of the X-axis represents the front, the reverse direction of the X-axis represents the rear, the Y-axis represents the left-right direction, the positive direction of the Y-axis represents the left, the reverse direction of the Y-axis represents the right, the Z-axis represents the up-down direction, the positive direction of the Z-axis represents the up, and the reverse direction of the Z-axis represents the down. At the same time, it should be noted that the meanings represented by the foregoing X-axis, Y-axis, and Z-axis are only for facilitating the description of the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.
[0029] Such as Figures 1-7As shown in the figure, a connecting component between a roller shaft and a rolling mill roll according to an embodiment of the present utility model includes a roller shaft body 1, a rolling mill roll body 2 and a connecting mechanism 3. An installation groove 13 matching with an axial end of the rolling mill roll body 2 is provided on the roller shaft body 1. The rolling mill roll body 2 is inserted into the installation groove 13. A first connection hole 21 penetrating along its radial direction is provided at one end of the rolling mill roll body 2 inserted into the installation groove 13. A second connection hole 14 communicating with the first connection hole 21 is provided on the circumferential side wall of the roller shaft body 1. The connecting mechanism 3 includes a first connecting member 31 and a clamping plate 32. One end of the first connecting member 31 is used to enter and exit the first connection hole 21 through the second connection hole 14. Two card slots 311 are provided at intervals along the axial direction on the circumferential side wall of the other end of the first connecting member 31. The clamping plate 32 is rotatably connected to the circumferential side wall of the roller shaft body 1 around a rotation point. The clamping plate 32 is used to rotate around the rotation point to insert into one of the card slots 311 when the first connecting member 31 is inserted into the first connection hole 21. The clamping plate 32 is further used to rotate around the rotation point to insert into the other card slot 311 when the first connecting member 31 exits the first connection hole 21.
[0030] Specifically, the rolling mill roll body 2 and the roller shaft body 1 are generally in a stepped shaft structure. The rolling mill roll body 2 and the roller shaft body 1 are coaxially arranged. For example, the axes of the roller shaft body 1 and the rolling mill roll body 2 are both along the direction shown by the Z axis. An installation groove with an opening facing downward is provided at the lower end of the roller shaft body 1. The upper end of the rolling mill roll body 2 can be inserted into the installation groove. A first connection hole 21 penetrating along the direction shown by the X axis can be provided at the upper end of the rolling mill roll body 2. A second connection hole 14 extending along the direction shown by the X axis and communicating with the first connection hole 21 is provided at the lower end of the roller shaft body 1. The first connecting member 31 can be a plug rod. One end of the first connecting member 31 can pass through the second connection hole 14 and insert into the first connection hole 21. The first connecting member 31 can move along the direction shown by the X axis to enter or exit the first connection hole 21. Two card slots 311 are provided at intervals along the axial direction on the circumferential side wall of the other end of the first connecting member 31. The notch of the card slot 311 faces the side of the clamping plate 32. The clamping plate 32 can rotate around the rotation point in the YZ plane. The clamping plate 32 can be located above the first connecting member 31. The clamping plate 32 can rotate downward around the rotation point to insert into the card slot 311, or rotate upward around the rotation point to disengage from the card slot 311.
[0031] In this embodiment, when it is necessary to connect the roll body 2 to the roll shaft body 1, one axial end of the roll body 2 is inserted into the mounting groove on the roll shaft body 1 to achieve the axial fixation of the roll body 2 and the roll shaft body 1; then, a first connecting member 31 such as a pin rod passes through the second connecting hole 14 of the roll shaft body 1 and inserts into the first connecting hole 21 of the roll body 2, and the card slot on the first connecting member 31 close to the roll body 2 corresponds to the clamping plate. Rotate the clamping plate 32 so that the clamping plate 32 inserts into the card slot 311. Since the first connecting hole 21 and the second connecting hole 14 are arranged along the radial direction of the roll body 2 (or the roll shaft body 1), the radial fixation of the roll body 2 and the roll shaft body 1 is achieved. By fixing the roll body 2 and the roll shaft body 1 in different axial and radial directions, the stable connection between the two is realized, and the first connecting member 31 is clamped with the clamping plate 32 on the roll shaft body 1 through the card slot 311 thereon to limit the first connecting member 31 from radially disengaging from the roll body 2 and the roll shaft body 1, further ensuring the connection stability between the roll shaft body 1 and the roll body 2; when it is necessary to disassemble the roll body 2, first rotate the clamping plate 32 to disengage it from the card slot 311 on the first connecting member 31, then move the first connecting member 31 outwards to make the first connecting member 31 withdraw from the first connecting hole 21. The card slot 311 on the first connecting member 31 away from the roll body 2 corresponds to the clamping plate 32. Rotate the clamping plate 32 to insert it into the card slot 311, and then pull out the roll body 2 axially. Moreover, the card slot 311 on the first connecting member 31 is clamped with the clamping plate 32 on the roll shaft body 1 to prevent the first connecting member 31 from falling and being lost. In addition, the entire disassembly and assembly process does not require hydraulic drive, has a simple structure, is convenient to operate, and has a low cost.
[0032] As Figures 5-6 shown, optionally, the second connecting hole 14 is a stepped hole and has a limiting step surface 141. The cross-sectional dimension of the end of the second connecting hole 14 communicating with the first connecting hole 21 is larger than that of the other end. The first connecting member 31 is in a stepped shape. One end of the first connecting member 31 away from the card slot 311 is a large end portion 312. The first connecting member 31 is used to move so that the large end portion 312 moves from the first connecting hole 21 to the second connecting hole 14 and abuts against the limiting step surface 141.
[0033] Specifically, the cross-sectional dimension of one end of the second connecting hole 14 close to the central axis of the roll shaft body 1 is larger, and the cross-sectional dimension of the end facing the outside of the roll shaft body 1 is smaller, forming a two-stage stepped structure. The first connecting member 31 is a two-stage stepped structure. The cross-sectional dimension of one end of the first connecting member 31 close to the central axis of the roll shaft body 1 is larger to form a large end portion 312, and the cross-sectional dimension of the end extending out of the roll shaft body 1 is smaller.
[0034] In this embodiment, when the roll body 2 needs to be disassembled, the first connecting member 31 is pulled outwards, and the first connecting member 31 exits the first connecting hole 21 until the stepped first connecting member 31 abuts against the limiting step surface 141 of the second connecting hole 14. At this time, one of the two card slots 311 close to the central axis of the roll shaft body 1 is exactly located below the clamping plate 32, and the clamping plate 32 is rotated downwards to insert it into this card slot 311. On the premise that the clamping plate 32 on the roll shaft body 1 is inserted into the corresponding card slot 311 on the first connecting member 31, the first connecting member 31 is also made to abut against the limiting step surface 141 of the second connecting hole 14 to further limit the movement of the first connecting member 31 in the direction shown by the X-axis, ensuring that the roll body 2 can be smoothly inserted into or withdrawn from the installation slot in the direction shown by the Z-axis without interference with the first connecting member 31.
[0035] As Figures 3-4 shown, optionally, the connecting mechanism 3 further includes a second connecting member 33, and the second connecting member 33 is used to tightly connect the clamping plate 32 and the roll shaft body 1 after the clamping plate 32 is inserted into the card slot 311.
[0036] In this embodiment, the second connecting member 33 can be a fastening bolt. After the first connecting member 31 moves into place, the clamping plate 32 is rotated to insert it into the corresponding card slot 311. After that, the second connecting member 33 can pass through the clamping plate 32 in the direction shown by the X-axis and insert into the roll shaft body 1 to lock the clamping plate 32, ensuring that the first connecting member 31 will not move in the X direction, and the connection stability of the roll shaft body 1 and the roll body 2 is more guaranteed.
[0037] Optionally, one end of the clamping plate 32 is rotatably connected to the roll shaft body 1 around the rotation point, and the end of the clamping plate 32 away from the rotation point is configured as a hand-held end 321.
[0038] Specifically, the clamping plate 32 can be a long strip plate. One end of the clamping plate 32 can be rotatably connected to the roll shaft body 1 through a rotating shaft, and the other end of the clamping plate 32 is configured as a hand-held end 321. An operator can hold the hand-held end 321 and rotate the clamping plate 32 up and down to insert into or disengage from the corresponding card slot 311, which is convenient to operate.
[0039] As Figure 4 shown, optionally, a notch 322 is provided in the part of the clamping plate 32 between its two ends, and the second connecting member 33 is used to pass through the notch 322 and the roll shaft body 1.
[0040] Specifically, the pallet 32 is provided with a notch 322 opening downward, and the shape of the notch 322 matches the shape of the second connecting member 33. The roller shaft body 1 is provided with a connection hole corresponding to the notch 322. The second connecting member 33 passes through the notch 322 and is inserted into the connection hole to lock the pallet 32 on the roller shaft body 1. By providing the notch 322 on the pallet 32, the second connecting member 33 can be more easily aligned and inserted.
[0041] As Figure 3 shown, optionally, the connection mechanism 3 further includes a handle 34, and the handle 34 is connected to one end of the first connecting member 31 provided with the card slot 311.
[0042] Specifically, the handle 34 can be a horizontally arranged T-shaped structure, and one end of the T-shaped structure is connected to the end of the first connecting member 31 extending out of the roller shaft body 1, which is convenient for the operator to hold the handle 34 and drive the first connecting member 31 to move by pulling the handle 34.
[0043] In some other embodiments, the first connecting member 31 can be driven by a hydraulic device.
[0044] As Figures 5-6 shown, optionally, two second connection holes 14 are provided on the roller shaft body 1, and the two second connection holes 14 are respectively communicated with both ends of the first connection hole 21. The first connecting members 31 of the two connection mechanisms 3 are respectively used to pass through the corresponding second connection holes 14 and insert into the same first connection hole 21.
[0045] Specifically, two second connection holes 14 are provided on the circumferential side wall of the roller shaft body 1 and are arranged opposite to each other. The second connection holes 14 are arranged along the direction shown by the X axis. The axial two ends of the first connection hole 21 are respectively communicated with the two second connection holes 14. Connection mechanisms 3 are respectively arranged on both sides of the roller body 2 along the direction shown by the X axis, and the two connection mechanisms 3 are arranged opposite to each other. The first connecting members 31 of the two connection mechanisms 3 respectively pass through the corresponding second connection holes 14 and insert into the first connection hole 21 to realize the fixed connection between the roller body 2 and the roller shaft body 1. By fixing from both sides by the two relatively arranged connection mechanisms 3, the connection stability is better.
[0046] It can be understood that Figures 5-6In this case, the first connectors 31 of the two connecting mechanisms 3 are respectively in different positions, that is, the first connector 31 of one connecting mechanism 3 passes through the roller shaft body 1 and inserts into the roll body 2, and the first connector 31 of the other connecting mechanism 3 withdraws from the roll body 2. During actual use, it is usually necessary to make the first connectors 31 of the two connecting mechanisms 3 both pass through the roller shaft body 1 and insert into the roll body 2 to lock the roll body 2 from both sides of the roller shaft body 1; when it is necessary to disassemble the roll body 2, make the first connectors 31 of the two connecting mechanisms 3 both withdraw from the roll body 2.
[0047] Of course, in some other embodiments, a plurality of second connection holes 14 extending radially along the circumferential side wall of the roller shaft body 1 may be provided at intervals, and the second connection holes 14 are respectively connected to the first connection holes 21, and the connecting mechanism 3 is arranged in one-to-one correspondence with the second connection holes 14, so as to realize locking the roll body 2 and the roller shaft body 1 from different directions by using a plurality of connecting mechanisms 3.
[0048] Such as Figure 1 As shown, optionally, two anti-rotation planes 22 are oppositely arranged on the circumferential side wall at one end of the roll body 2, and both ends of the first connection hole 21 penetrate through the two anti-rotation planes 22 respectively.
[0049] Specifically, anti-rotation planes 22 are arranged oppositely on the circumferential side wall at the upper end of the roll body 2, so that a flat head structure is formed at the upper end of the roll body 2. The shape of the installation part matches the shape of the upper end of the roll body 2. The roll body 2 is inserted into the installation groove of the roller shaft body 1 through the flat head structure thereon, which can prevent the roll body 2 from rotating circumferentially relative to the roller shaft body 1 and ensure the connection reliability between the roll body 2 and the roller shaft body 1.
[0050] Moreover, by arranging two anti-rotation planes 22 oppositely at one end of the roll body 2 and processing the first connection hole 21 that penetrates through the two anti-rotation planes 22 on the roll body 2, compared with processing the first connection hole 21 that penetrates radially through the cylindrical roll body 2, the processing difficulty is smaller.
[0051] Such as Figures 5-6 As shown, optionally, the roller shaft body 1 includes a telescopic universal joint shaft 11 and a sliding sleeve 12. An installation cavity with an open end is provided at one axial end of the telescopic universal joint shaft 11. The sliding sleeve 12 is placed in the installation cavity from the open end. A through hole that axially penetrates the telescopic universal joint shaft 11 is provided on the sliding sleeve 12, and the through hole communicates with the end of the installation cavity far from the open end to form the installation groove 13; a large hole extending radially along the circumferential side wall of the sliding sleeve 12 is provided, and a small hole extending radially along the circumferential side wall of the telescopic universal joint shaft 11 is provided, and the large hole and the small hole communicate with each other to form the second connection hole 14.
[0052] Specifically, the telescopic universal joint shaft 11 can telescopically compensate for the position offset caused by movement or installation errors. An installation cavity with an open end facing downward is provided at the lower end of the telescopic universal joint shaft 11. The installation cavity has a stepped structure with a smaller upper part and a larger lower part. The sliding sleeve 12 is inserted into the installation cavity and abuts against the stepped surface of the installation cavity. A through hole penetrating in the vertical direction is provided inside the sliding sleeve 12. The upper end of the roll body 2 passes upward through the through hole and abuts against the bottom of the installation cavity to achieve the axial assembly of the roll body 2 and the roll shaft body 1. The sliding sleeve 12 is arranged between the roll body 2 and the telescopic universal joint shaft 11, which can prevent the roll body 2 and the telescopic universal joint shaft 11 from being damaged by friction and extend the service life of the equipment.
[0053] A large hole extending in the direction shown by the X axis is provided on the circumferential side wall of the sliding sleeve 12, and a small hole extending in the direction shown by the X axis is provided on the circumferential side wall of the telescopic universal joint shaft 11. One end of the large hole communicates with the small hole to form a second connection hole 14, and the other end of the large hole communicates with the first connection hole 21 of the roll body 2 in the installation groove 13. The first connecting member 31 can pass through the second connection hole 14 and insert into the first connection hole 21 to realize the locking of the roll body 2 and the roll shaft body 1.
[0054] Another embodiment of the present invention provides a rolling mill, including the above-mentioned roll shaft and roll connection assembly. The advantages of the rolling mill compared with the prior art are the same as those of the above-mentioned roll shaft and roll connection assembly, and will not be repeated here.
[0055] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will all fall within the protection scope of the present invention.
Claims
1. A roller shaft and roller connection assembly, characterized in that: The invention comprises a roller body (1), a rolling roller body (2) and a connecting mechanism (3), wherein the roller body (1) is provided with a mounting groove (13) matching one axial end of the rolling roller body (2), the rolling roller body (2) is inserted into the mounting groove (13), one end of the rolling roller body (2) inserted into the mounting groove (13) is provided with a first connecting hole (21) penetrating in the radial direction thereof, a second connecting hole (14) connected to the first connecting hole (21) is provided on the circumferential side wall of the roller body (1), and the connecting mechanism (3) comprises a first connecting member (31) and a clamping plate (32), one end of the first connecting member (31) is used to pass through the mounting groove (13) to connect the first connecting member (21) to the rolling roller body (2). The second connecting hole (14) is used to enter and exit the first connecting hole (21); the circumferential side wall of the other end of the first connecting member (31) is provided with two clamping grooves (311) spaced apart along the axial direction; the clamping plate (32) is rotatably connected to the circumferential side wall of the roller body (1) around a rotation point; the clamping plate (32) is used to rotate around the rotation point when the first connecting member (31) is inserted into the first connecting hole (21) so as to be inserted into one of the clamping grooves (311); the clamping plate (32) is also used to rotate around the rotation point when the first connecting member (31) exits the first connecting hole (21) so as to be inserted into the other clamping groove (311).
2. The roller shaft and roller connection assembly according to claim 1, characterized in that: The second connecting hole (14) is a stepped hole and has a limiting step surface (141); the cross-sectional dimension of one end of the second connecting hole (14) communicating with the first connecting hole (21) is larger than the cross-sectional dimension of the other end; the first connecting member (31) is stepped; the end of the first connecting member (31) away from the clamping groove (311) is a large end portion (312); the first connecting member (31) is used to move so that the large end portion (312) moves from the first connecting hole (21) to the second connecting hole (14) and abuts against the limiting step surface (141).
3. The roller shaft and roller connection assembly according to claim 1, characterized in that: The connecting mechanism (3) further comprises a second connecting member (33), wherein the second connecting member (33) is used to securely connect the clamping plate (32) to the roller body (1) after the clamping plate (32) is inserted into the clamping groove (311).
4. The roller shaft and roller connection assembly according to claim 3, characterized in that: One end of the card plate (32) is rotatably connected to the roller body (1) around the rotation point, and one end of the card plate (32) away from the rotation point is configured as a handheld end (321).
5. The roller shaft and roller connection assembly according to claim 4, characterized in that: The clamping plate (32) is provided with a notch (322) at a portion between its two ends, and the second connecting member (33) is used to pass through the notch (322) and the roller body (1).
6. The roller shaft and roller connection assembly according to claim 1, characterized in that: The connecting mechanism (3) further comprises a handle (34), and the handle (34) is connected to one end of the first connecting member (31) provided with the clamping groove (311).
7. The roller shaft and roller connection assembly according to claim 1, characterized in that: The roller body (1) is provided with two second connection holes (14), the two second connection holes (14) are respectively connected to two ends of the first connection hole (21), and the first connection members (31) of the two connection mechanisms (3) are respectively used to pass through the corresponding second connection holes (14) to be inserted into the same first connection hole (21).
8. The roller shaft and roller connection assembly according to claim 1, characterized in that: Two anti-rotation planes (22) are arranged opposite to each other on the circumferential side wall of one end of the roller body (2), and the two ends of the first connecting hole (21) respectively pass through the two anti-rotation planes (22).
9. The roller shaft and roller connection assembly according to claim 2, characterized in that: The roller body (1) comprises a telescopic universal joint (11) and a sliding sleeve (12); an axial end of the telescopic universal joint (11) is provided with a mounting cavity having an opening; the sliding sleeve (12) is placed in the mounting cavity from the opening; the sliding sleeve (12) is provided with a through hole penetrating along the axial direction of the telescopic universal joint (11); the through hole is connected with an end of the mounting cavity away from the opening to form the mounting groove (13); a large hole extending in the radial direction is provided on the circumferential side wall of the sliding sleeve (12); a small hole extending in the radial direction is provided on the circumferential side wall of the telescopic universal joint (11); the large hole and the small hole are connected to each other to form the second connecting hole (14).
10. A rolling mill, characterized in that: It comprises a roller shaft and roller connection assembly as described in any one of claims 1 to 9.