Roller grinding device

Abstract

The utility model discloses a roller grinding device which comprises a machine base, a vertical plate, a power box, a roller to be ground, a movable screw rod, a movable seat, a lifting seat, a motor, a protective shell, a cooling liquid pipe, a three-jaw chuck, a hydraulic cylinder, a tip cone, a grinding wheel, a central convex bolt, a rotary gear ring, an arc-shaped swing rod, a splash-proof arc plate, an extension plate, a sliding rod, a gear rod, a spring and a locking bolt. A three-jaw chuck is arranged on one side of the power box and used for clamping the end of a roller, a hydraulic cylinder is fixed to the outer side of a vertical plate, a tip cone is arranged at the output end of the hydraulic cylinder and used for abutting against and fixing the roller, a movable screw drives a movable base to move in the axial direction, and a lifting base is provided with a motor and drives a grinding wheel to conduct grinding. The center convex bolt is provided with a rotating gear ring, the gear rod is meshed with the rotating gear ring, the sliding rod is sleeved with a spring, it is guaranteed that the splash-proof arc plate works stably through the pre-tightening force of the spring, efficient and precise grinding of the roller is achieved, and the cooling and protection effects are improved.

Description

Technical Field

[0001] This utility model belongs to the field of rolling mill grinding technology, and specifically relates to a rolling mill grinding device. Background Technology

[0002] Rolls are the core components of rolling mills, and their surface quality directly affects the precision and quality of rolled products. Therefore, during the production and use of rolls, their surfaces need to be ground to remove surface defects, improve surface finish, and ensure geometric accuracy. Currently, roll grinding mainly relies on specialized grinding equipment. Common roll grinding equipment typically uses a power transmission mechanism to drive the roll rotation, and the grinding mechanism completes the surface processing. Furthermore, cooling and lubrication are indispensable during the grinding process, effectively reducing temperature rise, minimizing grinding burns, and improving processing quality.

[0003] Existing roll grinding equipment still faces several challenges in practical applications. For instance, some systems, lacking effective fixing and support structures, may experience unstable roll clamping during grinding, affecting grinding accuracy. Furthermore, uneven spraying of cutting fluid during grinding leads to poor localized cooling, potentially causing excessively high temperatures in the grinding zone and impacting roll surface quality. Additionally, existing protective devices are often simplistic in design, lacking adequate control over cutting fluid and debris generated during grinding. This can result in cutting fluid splashing and debris leakage, affecting operational safety and the working environment, and negatively impacting the stability of processing quality. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a roll grinding device that can improve grinding stability, enhance cooling effect, and effectively prevent the splashing of cutting fluid and chips, thereby improving the processing quality of rolls and the safety of the working environment.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A roll grinding device includes a base and a roll to be ground. A vertical plate is vertically mounted on one side of the upper surface of the base, and a power box is mounted on the other side of the upper surface of the base. The roll to be ground is rotatably positioned between the power box and the vertical plate. A movable screw is laterally mounted on the rear side of the upper surface of the base. A movable seat is mounted on the surface of the movable screw. A lifting seat is mounted on the front side of the movable seat. A motor is fixed to one end of the lifting seat, and a protective shell is mounted on the other end of the lifting seat. The protective shell is hollow inside and open at the front. A grinding wheel is installed at the output end of the machine. The grinding wheel is placed inside the protective shell and extends beyond the front opening of the protective shell. The grinding wheel is in contact with the surface of the roller to be ground. A central protrusion is provided at the center of the side of the protective shell away from the lifting seat. A rotating toothed ring is rotatably installed on the surface of the central protrusion. An arc-shaped swing rod is provided forward on one side of the rotating toothed ring. The arc-shaped swing rod is positioned above the roller to be ground. A splash guard is provided on the side of the arc-shaped swing rod near the grinding wheel. The splash guard is used to protect the grinding area.

[0007] Furthermore, an extension plate is symmetrically arranged on one side surface of the protective shell, with two extension plates distributed vertically. The extension plates are positioned behind the central protruding bolt, and a sliding rod is vertically slidably installed between the two extension plates.

[0008] Furthermore, the slide bar surface is provided with a toothed bar, the toothed bar meshes with a rotating toothed ring, and a spring is sleeved on the slide bar surface, the top of the spring is in contact with the lower surface of the upper extension plate, and the bottom of the spring is in contact with the upper surface of the toothed bar.

[0009] Furthermore, a positioning hole is provided on the front side of one side of the protective shell, and a locking bolt passes through one side of the arc-shaped swing rod. The end of the locking bolt is adapted to the internal size of the positioning hole, and the locking bolt is used to fix the arc-shaped swing rod in the lowered state.

[0010] Furthermore, a coolant pipe is laid on the top of the protective shell, and the end of the coolant pipe corresponds to the grinding area.

[0011] Furthermore, a three-grip chuck is provided at one end of the power box near the vertical plate. The three-grip chuck clamps and fixes the end of the roller to be ground. A hydraulic cylinder is fixed on the outside of the vertical plate. A top cone is rotatably installed at the output end of the hydraulic cylinder. The top cone presses against the other end of the roller to be ground.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model provides a roll grinding device that improves the stability of the roll during the grinding process by optimizing the clamping and fixing method. The power box is equipped with a three-grip chuck to ensure stable clamping of the roll end. Simultaneously, a hydraulic cylinder is installed on the outside of the vertical plate, with a top cone at its output end. The hydraulic cylinder provides sufficient clamping force, ensuring the roll remains stable during rotation and preventing axial movement or wobble caused by insecure clamping, thereby improving grinding accuracy and surface quality.

[0014] This invention improves the precision and efficiency of grinding by refining the structure of the grinding mechanism. A motor is mounted on the lifting seat, with its output connected to a grinding wheel. The grinding wheel extends beyond the front end of the protective shell and contacts the surface of the roll. The lifting seat can adjust the position of the grinding wheel, ensuring precise application to the roll surface to accommodate the grinding needs of rolls of different specifications. Simultaneously, the movable seat can move axially along the moving screw, making the grinding range adjustable and enhancing processing flexibility. The grinding wheel is made of wear-resistant material, and its speed can be adjusted via a variable frequency motor to adapt to different grinding processes and improve the surface quality of the roll.

[0015] This invention improves the cooling effect during the grinding process by optimizing the cooling system. A coolant pipe is installed on the top of the protective shell, and the nozzle of the coolant pipe is fixed to the protective shell. The angle of its end can be adjusted arbitrarily to ensure that the coolant can be sprayed evenly onto the grinding area. With the automatic adjustment of the lifting seat, the temperature of the grinding part is effectively reduced, reducing the workpiece surface burn caused by heat accumulation, improving the processing quality of the roll surface, and extending the service life of the grinding wheel.

[0016] This invention improves operational safety and optimizes chip control during grinding through an innovative protective structure design. A central bolt is positioned at the center of one side of the protective shell, from which a rotating gear ring is rotatably mounted. An arc-shaped swing rod is connected to one side of the rotating gear ring, and a splash guard is installed on the side of the swing rod closest to the grinding wheel. This splash guard encloses the grinding area during grinding to prevent cutting fluid and chip splashing, thus improving the safety of the operating environment. When it is necessary to observe the grinding process, simply unlock the locking bolt; the splash guard will then quickly open under spring action, facilitating real-time inspection of the machining process while ensuring operational convenience.

[0017] This invention improves the stability and flexibility of the protective device through a precise adjustment structure. An extension plate, distributed vertically, is installed on one side of the protective shell. A sliding rod is slidably installed between the two extension plates, and a toothed rod is mounted on the surface of the sliding rod. The toothed rod meshes with a rotating toothed ring, and a spring provides downward preload, ensuring that the splash guard plate is always in a stable downward pressure state, thus ensuring the protective effect. Simultaneously, the spring preload allows the splash guard plate to open quickly after unlocking, facilitating rapid adjustment and improving operational efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention under processing conditions;

[0019] Figure 2 This is a three-dimensional structural diagram of the anti-splash arc plate of this utility model in its open state;

[0020] Figure 3 This is a schematic diagram of the splash-proof sliding plate installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the protective shell and toothed rod installation structure of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the splash guard of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Machine base; 101. Vertical plate; 2. Power box; 21. Three-jaw chuck; 3. Hydraulic cylinder; 31. Top cone; 4. Roll to be ground; 5. Moving screw; 6. Moving seat; 7. Lifting seat; 8. Motor; 81. Grinding wheel; 9. Protective shell; 91. Central bolt; 92. Extension plate; 93. Positioning hole; 10. Coolant pipe; 11. Rotating gear ring; 12. Arc-shaped swing rod; 13. Anti-splash arc plate; 14. Locking bolt; 15. Slide rod; 16. Gear; 17. Spring. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] refer to Figures 1-5As shown, a roll grinding device includes a base 1 and a roll 4 to be ground. The base 1 is made of Q235 carbon steel to provide stable structural support. A vertical plate 101 is vertically arranged on one side of the upper surface of the base 1. The vertical plate 101 is made of 45# steel to enhance strength and wear resistance. The vertical plate 101 is used to provide fixed support for the roll and cooperates with a hydraulic cylinder 3 to achieve tight fixing. A power box 2 is arranged on the other side of the upper surface of the base 1. The power box 2 is equipped with a variable frequency motor and a transmission mechanism. The output shaft of the power box 2 is connected to a three-grip chuck 21 to provide stable rotational driving force. The roll 4 to be ground rotates... The grinding roller 4, located between the power box 2 and the vertical plate 101, is made of high-strength alloy steel to ensure good wear resistance and high strength. A moving screw 5, a high-precision ball screw, is laterally arranged on the rear side of the upper surface of the base 1 to ensure smooth adjustment of the moving seat 6 during grinding. The moving seat 6 is mounted on the surface of the moving screw 5, and a lifting seat 7 is mounted on the front side of the moving seat 6. The lifting seat 7 is hydraulically driven or motor-driven, and its height is adjusted through a screw and nut mechanism to achieve precise control of the grinding wheel 81. A motor 8, a 2.2kW high-speed motor, is fixed to one side of the end of the lifting seat 7. A motor is installed to ensure sufficient grinding power, and a protective shell 9 is installed on the other side of the lifting seat 7. The protective shell 9 is made of high-temperature resistant alloy material to provide safety protection and dust isolation. The interior of the protective shell 9 is hollow with an open front. A grinding wheel 81 is installed at the output end of the motor 8. The grinding wheel 81 is made of alumina or silicon carbide to ensure efficient grinding. The grinding wheel 81 is placed inside the protective shell 9 and extends beyond the open front side of the protective shell 9. The grinding wheel 81 is in contact with the surface of the roller 4 to be ground. The speed of the grinding wheel 81 can be controlled by frequency conversion to meet different processing requirements. The protective shell 9 is located on the side opposite to the lifting seat 7. A central convex bolt 91 is provided at the center. The central convex bolt 91 is machined with high precision to ensure the stability of the rotating parts. A rotating gear ring 11 is rotatably mounted on the surface of the central convex bolt 91. The rotating gear ring 11 is carburized and quenched to improve its wear resistance. An arc-shaped swing rod 12 is provided forward on one side of the rotating gear ring 11. The arc-shaped swing rod 12 is positioned above the roller 4 to be ground. A splash guard 13 is provided on the side of the arc-shaped swing rod 12 near the grinding wheel 81. The splash guard 13 is made of high-temperature resistant and high-strength composite material to protect the grinding area and prevent cutting fluid and chips from splashing, thereby improving the safety of the processing environment.

[0027] refer to Figures 3-5 As shown, two extension plates 92 are symmetrically arranged on one side surface of the protective shell 9. The two extension plates 92 are laser-welded from Q235 steel plates and are distributed vertically. The extension plates 92 are placed behind the central convex bolt 91. A slide rod 15 is vertically slidably installed between the two extension plates 92. The slide rod 15 is made of quenched alloy steel to ensure high strength and wear resistance, and to ensure the stable adjustment of the anti-splash plate 13.

[0028] refer to Figure 3 As shown, the slide bar 15 is provided with a toothed bar 16. The toothed bar 16 is made of C45 steel and has undergone high-frequency quenching treatment to improve wear resistance. The toothed bar 16 meshes with the rotating toothed ring 11 to ensure the balanced force and precise adjustment of the arc swing rod 12. A spring 17 is sleeved on the surface of the slide bar 15. The spring 17 is made of 65Mn spring steel to ensure good resilience and long-term stability. The top of the spring 17 contacts the lower surface of the upper extension plate 92, and the bottom of the spring 17 contacts the upper surface of the toothed bar 16 to provide a rapid rebound force after unlocking, so that the splash-proof arc plate 13 opens quickly.

[0029] refer to Figures 3-5 As shown, a positioning hole 93 is provided on the front side of one side of the protective shell 9. The positioning hole 93 is precision bored to ensure locking stability. A locking bolt 14 passes through one side of the arc-shaped swing rod 12. The locking bolt 14 is made of M8 stainless steel bolt to ensure a stable locking effect. The end of the locking bolt 14 is adapted to the internal size of the positioning hole 93. The locking bolt 14 is used to fix the arc-shaped swing rod 12 in the lowered state, ensuring that the anti-splash arc plate 13 always covers the grinding area and can be quickly unlocked when observation is required.

[0030] refer to Figure 3 As shown, a coolant pipe 10 is laid on the top of the protective shell 9. The coolant pipe 10 is made of high-temperature and high-pressure resistant rubber tubing to ensure good durability. A through pipe is provided at the end of the protective shell 9, through which the coolant pipe 10 passes, so that the coolant pipe 10 can be adjusted accordingly when longitudinal movement occurs. The end of the coolant pipe 10 corresponds to the grinding area. The nozzle of the coolant pipe 10 is an adjustable nozzle to ensure uniform coverage of cutting fluid, improve the cooling effect, reduce grinding burns, and improve grinding quality.

[0031] refer to Figure 1 and Figure 2 As shown, a three-jaw chuck 21 is provided at one end of the power box 2 near the vertical plate 101. The three-jaw chuck 21 is made of hard alloy material to ensure high-strength clamping. The three-jaw chuck 21 clamps and fixes the end of the roller 4 to be ground to ensure stable rotation of the roller during grinding and avoid swaying that affects grinding accuracy. A hydraulic cylinder 3 is fixed on the outside of the vertical plate 101. The hydraulic cylinder 3 adopts a hydraulic system with a rated pressure of 10MPa to provide sufficient clamping force. A top cone 31 is rotatably installed at the output end of the hydraulic cylinder 3. The top cone 31 is made of hardened alloy steel to provide stable axial support. The top cone 31 presses against the other end of the roller 4 to be ground and ensures that the axis of the roller 4 to be ground is horizontal, so as to ensure that the roller is subjected to uniform force during rotation, avoid axial movement, and improve grinding stability and processing accuracy.

[0032] The working principle of this utility model is as follows: First, the roller 4 to be ground is hoisted between the power box 2 and the vertical plate 101, and clamped and fixed by the three-jaw chuck 21. Then, the other end is tightened by the top cone 31, so that the power box 2 drives the roller 4 to rotate. The moving seat 6 can move laterally along the axis of the moving screw 5. The motor 8 is started and the height of the lifting seat 7 is adjusted to control the grinding wheel 81 to contact the roller 4 to be ground, thereby realizing the grinding work of the roller 4 to be ground. During grinding, cutting fluid is sprayed into the grinding area through the pump body and the coolant pipe 10 to cool the grinding area. At the same time, due to the presence of the spring 17, the rack 16 always has a downward force, which in turn... The meshing of the gear 16 and the rotating gear ring 11 controls the arc-shaped swing arm 12 to have a force in the opening direction. During grinding, the anti-splash arc plate 13 can be pulled down so that the anti-splash arc plate 13 can wrap around the grinding area of ​​the grinding roller 4. At this time, it can be fixed by the cooperation of the locking bolt 14 and the positioning hole 93. The lowering of the anti-splash arc plate 13 will drive the gear 16 to move up to compress and store the spring 17. During axial grinding, the anti-splash arc plate 13 can always protect the grinding area and prevent cutting fluid and chips from splashing, thus providing effective protection. Conversely, by loosening the locking bolt 14, the anti-splash arc plate 13 can be quickly opened due to the stored force of the spring 17, so as to facilitate quick observation of the grinding area.

[0033] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A roll grinding apparatus, comprising a base (1) and a roll (4) to be ground, characterized in that: A vertical plate (101) is vertically arranged on one side of the upper surface of the machine base (1), and a power box (2) is arranged on the other side of the upper surface of the machine base (1). The roller (4) to be ground is rotatably placed between the power box (2) and the vertical plate (101). A moving screw (5) is horizontally arranged on the rear side of the upper surface of the machine base (1). A moving seat (6) is installed on the surface of the moving screw (5). A lifting seat (7) is installed on the front side of the moving seat (6). A motor (8) is fixed on one side of the end of the lifting seat (7), and a protective shell (9) is installed on the other side of the end of the lifting seat (7). The protective shell (9) is hollow inside and open at the front. A grinding wheel (81) is installed at the output end of the motor (8). The grinding wheel (81) is placed inside the protective shell (9), and the grinding wheel (81) extends beyond the front opening of the protective shell (9). The grinding wheel (81) is in contact with the surface of the roller (4) to be ground. A central protrusion (91) is provided at the center of the side of the protective shell (9) away from the lifting seat (7). A rotating toothed ring (11) is rotatably mounted on the surface of the central protrusion (91). An arc-shaped swing rod (12) is provided forward on one side of the rotating toothed ring (11). The arc-shaped swing rod (12) is placed above the roller (4) to be ground. A splash guard (13) is provided on the side of the arc-shaped swing rod (12) near the grinding wheel (81). The splash guard (13) is used to protect the grinding area.

2. The roll grinding device according to claim 1, characterized in that: The protective shell (9) has two extension plates (92) symmetrically arranged on one side surface. The two extension plates (92) are distributed vertically. The extension plates (92) are placed behind the central protrusion (91). A slide rod (15) is vertically slidably installed between the two extension plates (92).

3. The roll grinding device according to claim 2, characterized in that: The slide bar (15) is provided with a toothed bar (16), which meshes with the rotating toothed ring (11). A spring (17) is sleeved on the surface of the slide bar (15). The top of the spring (17) contacts the lower surface of the upper extension plate (92), and the bottom of the spring (17) contacts the upper surface of the toothed bar (16).

4. The roll grinding device according to claim 3, characterized in that: The protective shell (9) has a positioning hole (93) on one side in front, and a locking bolt (14) passes through one side of the arc-shaped swing rod (12). The end of the locking bolt (14) is adapted to the internal size of the positioning hole (93). The locking bolt (14) is used to fix the arc-shaped swing rod (12) in the lowered state.

5. The roll grinding device according to claim 1, characterized in that: The top of the protective shell (9) is covered with a coolant pipe (10), and the end of the coolant pipe (10) corresponds to the grinding area.

6. The roll grinding apparatus according to claim 1, characterized in that: The power box (2) is provided with a three-grip chuck (21) at one end near the vertical plate (101). The three-grip chuck (21) clamps and fixes the end of the roller (4) to be ground. A hydraulic cylinder (3) is fixed on the outside of the vertical plate (101). A top cone (31) is rotatably installed at the output end of the hydraulic cylinder (3). The top cone (31) presses against the other end of the roller (4) to be ground.

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