Roller car grinding anti-slip device
By combining the design of the ring sleeve, four-jaw positioning and anti-slip block, the problem of slippage during the rolling mill grinding process is solved, the grinding quality and efficiency are improved, tool wear is reduced, and the stable operation of the production line is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN TIANGANG UNITED SPECIAL STEEL CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-19
Smart Images
Figure CN224372412U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of rolling mill processing equipment, and in particular to a rolling mill grinding anti-slip device. Background Technology
[0002] Rolls play a crucial role in steel production, directly impacting steel quality and production efficiency through their surface finish, shape, and hardness. Grinding is a core aspect of roll maintenance and repair. Currently, in hot-rolled strip steel production, rolls are used and ground extremely frequently, with a large number of rolls coming off the production line daily for grinding. Current grinding operations rely solely on the hydraulic four-jaw chuck of the lathe for roll positioning and fixation. This process reveals significant problems in practice: frequent slippage occurs during grinding, not only damaging the cutting tools but also creating tool marks on the roll surface, severely affecting grinding quality. Once slippage occurs, abnormal roll surface quality necessitates rework, significantly reducing processing efficiency and increasing tool wear and time costs, adversely impacting the continuous and stable operation of the production line. Utility Model Content
[0003] The purpose of this invention is to address the problem of high usage and frequent grinding of rolls in current hot-rolled strip steel production, with a large number of rolls coming off the line daily for grinding. Currently, the hydraulic four-jaw positioning system is prone to slippage, leading to tool damage, roll surface damage, and rework, thus affecting efficiency and production. This invention proposes an anti-slip device for roll grinding.
[0004] The technical solution of this utility model is as follows: a rolling mill anti-slip device, including a grinding chuck and a rolling mill neck, and further including: an annular sleeve movably sleeved on one end of the rolling mill neck, the grinding chuck being provided with multiple four-jaw positioning for clamping and fixing the annular sleeve; multiple pairs of first anti-slip blocks and second anti-slip blocks corresponding to the four-jaw positioning are fixedly connected to the outer wall of the annular sleeve; and a tightening mechanism installed on the first anti-slip blocks and the second anti-slip blocks to fix the annular sleeve and the rolling mill neck in a fixed sleeve.
[0005] Optionally, the tightening mechanism includes a fastening bolt spirally connected to one end of the first and second anti-slip blocks. Both the first and second anti-slip blocks have telescopic grooves inside their respective ends, and the telescopic grooves are provided with anti-slip pads that are movably connected to one end of the fastening bolt.
[0006] Optionally, the anti-slip pad has multiple anti-slip protrusions fixedly connected to the side of the anti-slip pad near the roll neck.
[0007] Optionally, a fixed sleeve is movably connected inside the telescopic slide, and a rotating block is movably connected inside the fixed sleeve. The end of the fastening bolt near the anti-slip pad moves through the fixed sleeve and is fixedly connected to the rotating block.
[0008] Optionally, the four-claw positioning device is fixedly connected with a trapezoidal locking block that engages with the middle of the first and second anti-slip blocks.
[0009] Optionally, the grinding machine chuck is provided with multiple positioning grooves arranged in a circumferential array for the four jaws to position and slide.
[0010] Optionally, both the anti-slip pads and the anti-slip protrusions are made of polyurethane.
[0011] In summary, this application includes at least one of the following beneficial technical effects:
[0012] This invention utilizes a combination of a ring sleeve, four-jaw positioning, a first anti-slip block, a second anti-slip block, and a tightening mechanism to enable the anti-slip device for rolling mill grinding to be fitted onto the rolling mill neck via the ring sleeve. The four-jaw positioning clamps the anti-slip block of the ring sleeve, and the tightening mechanism presses the polyurethane anti-slip pad against the rolling mill neck. Through a combination of mechanical engagement and elastic friction, the device enhances clamping stability and friction, solves the slippage problem, and improves grinding quality and efficiency. Attached Figure Description
[0013] Figure 1 A schematic diagram of the anti-slip device for a rolling mill is provided below.
[0014] Figure 2 for Figure 1 Partial structural diagram;
[0015] Figure 3 for Figure 2 A partial cross-sectional structural diagram;
[0016] Figure 4 for Figure 3 A partial cross-sectional structural diagram.
[0017] Reference numerals: 1. Grinding machine chuck; 2. Four-jaw positioning; 21. Trapezoidal locking block; 3. Annular sleeve; 4. First anti-slip block; 5. Positioning groove; 6. Roller neck; 7. Second anti-slip block; 471. Fastening bolt; 472. Anti-slip pad; 473. Rotating locking block; 474. Fixed sleeve; 475. Anti-slip protrusion; 476. Telescopic groove. Detailed Implementation
[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0019] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] Example
[0025] like Figures 1 to 4As shown, this utility model proposes a roll mill anti-slip device, including a grinding chuck 1 and a roll neck 6. The grinding chuck 1 is the core part of the entire device, used to fix the roll neck 6 and enable the entire device to be rotated on the grinding machine. The grinding chuck 1 has multiple positioning grooves 5 arranged in a circumferential array for sliding by four-jaw positioning 2. An annular sleeve 3 is movably fitted at one end of the roll neck 6. The grinding chuck 1 has multiple four-jaw positioning 2s for clamping and fixing the annular sleeve 3. The four-jaw positioning 2s firmly clamp the annular sleeve 3 by hydraulic or mechanical means. The four-jaw positioning 2 firmly clamps the annular sleeve 3 by hydraulic or mechanical means, ensuring stable and accurate positioning of the roll neck 6 and preventing slippage during processing. The outer wall of the annular sleeve 3 is fixedly connected with multiple pairs of first anti-slip blocks 4 and second anti-slip blocks 7 corresponding to the four-jaw positioning 2. The first anti-slip blocks 4 and second anti-slip blocks 7 are both set in pairs, and their spacing and contour are adapted to the wedge structure of the trapezoidal block 21 to ensure tight engagement when the four-jaw positioning 2 clamps, thereby ensuring that the annular sleeve 3 can be tightly fixed after clamping. The first anti-slip blocks 4 and second anti-slip blocks 7 are equipped with a tightening mechanism that fixes the annular sleeve 3 and the roll neck 6 together.
[0026] Among them, such as Figures 1 to 4 As shown, the tightening mechanism includes a fastening bolt 471 screwed to one end of the first anti-slip block 4 and the second anti-slip block 7. The fastening bolt 471 can be tightened so that one end moves towards the roll neck 6. Multiple fastening bolts 471 clamp the roll neck 6, increasing the friction between the annular sleeve 3 and the roll neck 6, thus preventing slippage of the grinding machine chuck 1. Each end of the first anti-slip block 4 and the second anti-slip block 7 has a telescopic groove 476. Inside the telescopic groove 476 is an anti-slip pad 472 movably connected to one end of the fastening bolt 471. Multiple anti-slip protrusions 475 are fixedly connected to the side of the anti-slip pad 472 closest to the roll neck 6. These anti-slip protrusions 475 provide additional grip, enhancing the stability between the object and the surface and reducing slippage. Both the anti-slip pad 472 and the anti-slip protrusion 475 are made of polyurethane. Polyurethane anti-slip pads are anti-slip pads made of polyurethane material, which usually has good elasticity, wear resistance and pressure resistance, and can provide effective anti-slip effect.
[0027] In addition, such as Figure 4 As shown, a fixed sleeve 474 is movably connected inside the telescopic slide 476, and a rotating block 473 is movably connected inside the fixed sleeve 474. The fixed sleeve 474 limits the rotation trajectory of the rotating block 473, preventing radial displacement between the fastening bolt 471 and the first anti-slip block 4 and the second anti-slip block 7 when the fastening bolt 471 rotates, thus ensuring the stability of the spiral connection. The end of the fastening bolt 471 near the anti-slip pad 472 moves through the fixed sleeve 474 and is fixedly connected to the rotating block 473.
[0028] It is worth noting that, such as Figures 1 to 3 As shown, a trapezoidal locking block 21 is fixedly connected to the four-jaw positioning 2 and is inserted into the middle of the first anti-slip block 4 and the second anti-slip block 7. The trapezoidal locking block 21 is used to securely engage the middle of the first anti-slip block 4 and the second anti-slip block 7, and can be securely engaged no matter which direction the trapezoidal locking block 21 rotates.
[0029] In this embodiment, when using the anti-slip device for the rolling mill, such as Figure 1 As shown, first, the annular sleeve 3 is fitted onto one end of the roll neck 6, and then the roll neck 6 with the annular sleeve 3 fitted onto it is placed in the middle of the grinding machine chuck 1. Next, the multiple four-jaw positioning 2s on the grinding machine chuck 1 are activated, and the four-jaw positioning 2s clamp onto the annular sleeve 3 until the four-jaw positioning 2s drive the trapezoidal locking block 21 to engage with the corresponding first anti-slip block 4 and second anti-slip block 7. At this point, each fastening bolt 471 on the corresponding first anti-slip block 4 and second anti-slip block 7 can be tightened using a tool. Since the fastening bolt 471 is helically connected to the corresponding first anti-slip block 4 and second anti-slip block 7, the rotating locking block 473 at the end of the fastening bolt 471 can rotate within the fixed sleeve 474. Furthermore, the rotating block 473 pushes the anti-slip pad 472 towards the roll neck 6. After all the fastening bolts 471 are tightened, the anti-slip pad 472 will cause the anti-slip protrusion 475 on it to tightly press against the outer wall of one end of the roll neck 6. Thus, when the grinding machine chuck 1 rotates, each four-jaw positioning 2 is tightly locked in the middle of the first anti-slip block 4 and the second anti-slip block 7, and finally drives the clamped roll neck 6 to rotate, which is convenient and quick.
[0030] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A roll lapping anti-slip device comprising a grinding machine chuck (1) and a roll shaft neck (6), characterized in that, Also includes: The annular sleeve (3) is movably fitted onto one end of the roll neck (6), and the grinding machine chuck (1) is provided with multiple four-jaw positioning (2) for clamping and fixing the annular sleeve (3); Multiple pairs of first anti-slip blocks (4) and second anti-slip blocks (7) corresponding to the four-claw positioning (2) are fixedly connected to the outer wall of the annular sleeve (3); The tightening mechanism is installed on the first anti-slip block (4) and the second anti-slip block (7) so that the annular sleeve (3) and the roll neck (6) are fixedly connected.
2. A roll and mill anti-slip device according to claim 1, characterised in that, The tightening mechanism includes a fastening bolt (471) that is spirally connected to one end of the first anti-slip block (4) and the second anti-slip block (7). One end of the first anti-slip block (4) and the second anti-slip block (7) is provided with a telescopic groove (476). The inside of the telescopic groove (476) is provided with an anti-slip pad (472) that is movably connected to one end of the fastening bolt (471).
3. A roll and mill anti-slip device according to claim 2, characterised in that, The anti-slip pad (472) has multiple anti-slip protrusions (475) fixedly connected to the side of the pad that is close to the roll neck (6).
4. The anti-slip device for a rolling mill according to claim 2, characterized in that, The telescopic slide (476) is internally connected to a fixed sleeve (474), and the fixed sleeve (474) is internally connected to a rotating block (473). The end of the fastening bolt (471) near the anti-slip pad (472) passes through the fixed sleeve (474) and is fixedly connected to the rotating block (473).
5. The anti-slip device for a rolling mill according to claim 1, characterized in that, The four-claw positioning (2) is fixedly connected to a trapezoidal locking block (21) that is inserted into the middle of the first anti-slip block (4) and the second anti-slip block (7).
6. The anti-slip device for a rolling mill according to claim 1, characterized in that, The grinding machine chuck (1) has multiple positioning grooves (5) arranged in a circular array for the four-jaw positioning (2) to slide.
7. The anti-slip device for a rolling mill according to claim 3, characterized in that, The anti-slip pad (472) and anti-slip protrusion (475) are both made of polyurethane.