An apparatus for grinding an elongated roll

Abstract

The utility model relates to the technical field of roll grinding, disclose a kind of grinding equipment of slender class roll, the utility model solves the problem of easy deformation when slender roll grinding, difficult to cool down.A kind of grinding equipment of slender class roll, including device base and movable mechanism, the center of device base is connected with bottom plate, the top of bottom plate is connected with hydraulic damper, the top of hydraulic damper is connected with connecting block, the lower side of connecting block is connected with limit rod, the center of limit rod is connected with rubber block, the top of connecting block is connected with top plate, the lower side of top plate is connected with shock absorbing damping, the lower side of shock absorbing damping is connected with sliding block, the top of top plate is provided with limit mechanism, the top of limit mechanism is provided with grinding mechanism, it is provided with movable triple buffering mechanism, support the center area of roll, prevent deformation, limit mechanism is arranged to annular multiple cooling, prevent the inaccuracy of grinding size after overheating and cold shrink.

Description

Technical Field

[0001] This utility model relates to the field of roll grinding technology, specifically to a grinding device for slender rolls. Background Technology

[0002] Slender rolls are core components in the metallurgical and non-ferrous metal rolling fields. They are widely used in thin material rolling production lines such as steel plates, aluminum foils, and copper strips. Their cylindricity and surface finish directly determine the thickness uniformity and surface quality of the rolled products. Grinding is the core process in the manufacturing and repair of slender rolls. It is necessary to remove the excess material on the roll surface by high-speed cutting with a grinding wheel to achieve the required precision and surface finish.

[0003] For example, the special grinding machine for precision rolling of rolls disclosed in publication number "CN220944461U" places one end of the roll inside the rotating frame and the other end inside the fixed frame. Rotating threaded rods one and two causes arc-shaped pressing and fixing blocks one and two to press down and clamp the two ends of the roll. The grinding structure is then activated to grind the roll. When the roll needs to be rotated, the motor is started to rotate the rotating frame, thereby rotating the roll. The ball bearings facilitate the fixing components to limit and fix the other end of the roll while simultaneously allowing for roll rotation, saving time and effort and improving the efficiency of roll grinding. However, this equipment still has the following problems during use: Because of its smaller size compared to ordinary rolls, the slender rolls have a smaller heat dissipation surface during use. If the heat generated during grinding is not dissipated in time, the rolls will shrink after cooling, resulting in incorrect grinding dimensions. Furthermore, when the sides of the slender rolls are fixed, the central area is easily deformed by the continuous grinding of the grinding wheel, leading to micro-cracks in the grinding area. Utility Model Content

[0004] The purpose of this invention is to provide a grinding device for slender rolls. By using this device, the problems of easy deformation and difficulty in heat dissipation during the grinding of slender rolls can be solved.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for slender rolls, comprising a device base and a movable mechanism. A base plate is connected to the center of the device base, a hydraulic damper is connected above the base plate, a connecting block is connected above the hydraulic damper, limit rods are connected to both sides below the connecting block, a rubber block is connected to the center of the limit rods, a top plate is connected above the connecting block, a shock-absorbing damper is connected below the top plate, a sliding block is connected below the shock-absorbing damper, a limit mechanism is provided above the top plate, and a grinding mechanism is provided above the limit mechanism.

[0006] Preferably, the limiting mechanism includes a limiting block located above the top plate. The center of the limiting block has arc-shaped grooves evenly and equidistantly distributed. The bottom of the arc-shaped grooves enters the interior of the top plate. A tree-shaped diversion groove is provided below the arc-shaped grooves. A water inlet is connected to the confluence of the diversion grooves, and a water outlet is connected to the diversion groove on the other side. The arc-shaped grooves fit around the roller to ensure heat dissipation.

[0007] Preferably, the top plate has symmetrically distributed damping devices on both sides. The damping devices are connected to the sliding block by an interference fit, and the sliding block is connected to the device base by a sliding fit. The damping devices work in conjunction with the top plate to provide initial buffering for the top plate and prevent top resonance from causing the rollers to vibrate.

[0008] Preferably, the connection between the connecting block and the top plate is a fixed connection, the connection between the connecting block and the hydraulic damper is a fixed connection, and the connection between the hydraulic damper and the bottom plate is a sliding connection. The connection block and the hydraulic damper work together to perform secondary shock absorption and buffering.

[0009] Preferably, the rubber block has grooves on both sides of its center, and a connecting block and a base plate are respectively attached to the upper and lower sides of the rubber block. The length and width of the rubber block are the same as the length and width of the base plate. The rubber block isolates the connecting block from the base plate to prevent the connecting block from colliding with the base plate.

[0010] Preferably, the limiting rods are symmetrically distributed above the base plate. The limiting rods are connected to the connecting blocks in a sliding connection manner, and the limiting rods are connected to the base plate in a fixed connection manner. The limiting rods are used to limit the connecting blocks and prevent them from deviating from the base plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: It is equipped with a movable triple buffer mechanism to support the central area of ​​the roll and prevent deformation: a sliding base plate facilitates the movement of the top plate and supports different positions of the roll to prevent deformation of the center of the slender roll. In addition, shock-absorbing damping, rubber blocks and hydraulic dampers are set in sequence to provide triple buffering to prevent the vibration generated by the grinding wheel during grinding from resonating with the roll and causing roll deformation.

[0012] A limiting mechanism is set up for multiple ring-shaped cooling to prevent inaccurate grinding dimensions caused by overheating and subsequent shrinkage: The roll is fixed by a limiting block, and the inside of the limiting block has multiple arc-shaped grooves with annular structure. After the coolant is sprayed out through the nozzle, it flows along the arc-shaped grooves and adheres to the surface of the roll to carry away its heat, thereby achieving rapid cooling and preventing inaccurate grinding dimensions caused by thermal expansion and contraction of the roll. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the limiting mechanism of this utility model; Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the top plate of this utility model; Figure 4 This is a three-dimensional structural diagram of the top plate of this utility model from a bottom view; Figure 5 This is a top view cross-sectional structural diagram of the top plate of this utility model; Figure 6 This is a side view of the top plate structure of this utility model.

[0014] In the diagram: 1. Device base; 2. Limiting mechanism; 201. Limiting block; 202. Arc groove; 203. Water inlet; 204. Water outlet; 3. Movable mechanism; 4. Grinding mechanism; 5. Top plate; 6. Vibration damping; 7. Sliding block; 8. Connecting block; 9. Rubber block; 10. Base plate; 11. Hydraulic damper; 12. Limiting rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0017] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A grinding device for slender rolls includes a base 1 and a movable mechanism 3. A base plate 10 is centrally connected to the base 1, facilitating the movement of a top plate 5 and other workpieces. It is adaptable to different roll types. A hydraulic damper 11 is connected above the base plate 10, providing initial shock absorption. A connecting block 8 is connected above the hydraulic damper 11, connecting to the top plate 5 for subsequent processing. Limiting rods 12 are connected to both sides below the connecting block 8, limiting its movement and preventing swaying. A rubber block 9 is centrally connected to the limiting rod 12. Rubber block 9 provides secondary cushioning to prevent connecting block 8 from hitting base plate 10. Top plate 5 is connected above connecting block 8, and top plate 5 fixes limiting mechanism 2 for easy movement. Shock-absorbing damper 6 is connected below top plate 5, and shock-absorbing damper 6 provides triple cushioning to prevent resonance. Sliding block 7 is connected below shock-absorbing damper 6, and sliding block 7 supports shock-absorbing damper 6 for easy movement. Limiting mechanism 2 is set above top plate 5, and limiting mechanism 2 provides limiting cooling to prevent overheating. Grinding mechanism 4 is set above limiting mechanism 2, and grinding is performed by grinding mechanism 4 to complete the processing.

[0018] The present invention will be further described below with reference to the embodiments. Example

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The limiting mechanism 2 includes a limiting block 201 located above the top plate 5. Arc-shaped grooves 202 are evenly distributed at the center of the limiting block 201. The bottom of the arc-shaped grooves 202 enters the interior of the top plate 5. A tree-shaped diversion groove is opened below the arc-shaped grooves 202. The confluence of the diversion grooves is connected to a water inlet 203, and the diversion groove on the other side is connected to a water outlet 204. The arc-shaped grooves 202 are attached to the periphery of the roller to ensure heat dissipation.

[0020] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The top plate 5 has symmetrically distributed damping blocks 6 on both sides. The damping blocks 6 are connected to the sliding blocks 7 by interference fit. The sliding blocks 7 are connected to the device base 1 by sliding fit. The damping blocks 6 cooperate with the top plate 5 to provide initial buffering for the top plate 5 and prevent the top resonance from causing the roller vibration. The connecting block 8 is connected to the top plate 5 by fixed fit. The connecting block 8 is connected to the hydraulic damper 11 by fixed fit. The hydraulic damper 11 is connected to the base plate 10 by sliding fit. The connecting block 8 and the hydraulic damper 11 cooperate to provide secondary damping.

[0021] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The rubber block 9 has grooves on both sides of its center. The connecting block 8 and the base plate 10 are respectively attached to the upper and lower sides of the rubber block 9. The length and width of the rubber block 9 are the same as those of the base plate 10. The rubber block 9 isolates the connecting block 8 from the base plate 10 to prevent them from colliding. The limiting rods 12 are symmetrically distributed above the base plate 10. The limiting rods 12 are connected to the connecting block 8 by sliding connection and to the base plate 10 by fixed connection. The limiting rods 12 are used to limit the connecting block 8 to prevent it from tilting against the base plate 10.

[0022] Working principle: First, the two ends of the slender roll to be ground are fixed by the movable mechanism 3 and the fixed block, so that the roll axis is parallel to the grinding wheel axis of the grinding mechanism 4. Then, the limiting block 201 of the limiting mechanism 2 is adjusted according to the roll diameter, so that the inner wall of the arc groove 202 fits tightly with the outer circle of the roll. The arc of the arc groove 202 is adapted to the roll diameter, which can realize the ring-shaped support of the roll. At the same time, the coolant delivery pipe is connected to the inlet 203 and the coolant recovery pipe is connected to the outlet 204. Then, the grinding mechanism 4 is started. When the grinding wheel rotates at high speed to cut the roll surface, it will generate high-frequency vibration. The vibration is first transmitted to the top plate 5. The damping 6 on both sides of the top plate 5 absorbs part of the vibration energy through its own elastic deformation. At the same time, the sliding block 7 Slightly sliding along the guide rail of the device base 1 converts the lateral vibration into sliding displacement, preventing the vibration from being directly transmitted to the roll. The unabsorbed vibration is transmitted to the connecting block 8 through the top plate 5. The hydraulic damper 11 below the connecting block 8 uses the viscous resistance of the oil to convert the vibration energy into the heat energy of the oil and release it slowly, greatly attenuating the longitudinal vibration. Finally, the rubber block 9 between the connecting block 8 and the base plate 10 deforms elastically to prevent the connecting block 8 from rigidly colliding with the base plate 10 due to vibration, and to help absorb the low-frequency vibration that the hydraulic damper 11 has not completely attenuated. At the same time, the symmetrically distributed limit rods 12 restrict the lateral displacement of the connecting block 8, ensuring that the connecting block 8 always moves in the vertical direction and avoiding the roll axis displacement due to the support tilt. Meanwhile, during the grinding process, coolant enters the tree-shaped distribution channel inside the top plate 5 through the inlet 203 (see the instruction manual for details of the tree-shaped distribution channel). Figure 5The tree-like structure can evenly distribute the coolant to the bottom of multiple arc-shaped grooves 202, so that the coolant forms an annular liquid film along the inner wall of the arc-shaped grooves 202, directly contacting the outer circle of the roll. On the one hand, the coolant directly carries away the instantaneous high temperature generated in the contact area between the grinding wheel and the roll. On the other hand, the annular liquid film can wrap around the outer circle of the roll, so that the cooling area covers the contact section between the roll and the limiting block 201. After absorbing heat, the coolant flows along the arc-shaped groove 202 channel to the outlet 204, and is finally discharged from the equipment through the recovery pipe. When the grinding mechanism 4 moves along the length of the roll, it can drive the bottom plate 10 to slide along the device base 1, driving the top plate 5 and the limiting mechanism 2 to move synchronously. The sliding cooperation between the bottom plate 10 and the device base 1, combined with the auxiliary support of the sliding block 7 for the top plate 5, can make the limiting mechanism 2 always follow the movement of the grinding area, providing real-time support for the grinding section of the roll, solving the sagging deformation caused by the lack of support in the central area of ​​the slender roll. Rollers or electric push rods can also be added according to the actual situation to achieve automated synchronous adjustment.

[0023] It should be noted that the moving mechanism 3, the fixed block, and the grinding mechanism 4 are all the same parts in a special grinding machine for finishing rolls disclosed in publication number CN220944461U, and will not be described in detail here. Example

[0024] Please see Figure 6 The limiting block 201 can be made of fluororubber material, with an additional spring steel skeleton for auxiliary support on the outside. The elasticity of the rubber material limits and fixes the rollers of different thicknesses. Since the rubber material is inexpensive, it can be replaced at any time after wear. Only the worn rubber is replaced, without replacing the spring steel skeleton, which further saves costs.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover 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 process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding device for slender rolls, comprising a base and a movable mechanism, characterized in that: A base plate is connected to the center of the device base. A hydraulic damper is connected above the base plate. A connecting block is connected above the hydraulic damper. Limiting rods are connected to both sides below the connecting block. A rubber block is connected to the center of the limiting rods. A top plate is connected above the connecting block. A shock-absorbing damper is connected below the top plate. A sliding block is connected below the shock-absorbing damper. A limiting mechanism is provided above the top plate. A grinding mechanism is provided above the limiting mechanism.

2. The grinding equipment for slender rolls according to claim 1, characterized in that: The limiting mechanism includes a limiting block located above the top plate. The center of the limiting block has arc-shaped grooves evenly and equidistantly distributed. The bottom of the arc-shaped grooves enters the interior of the top plate. A tree-shaped diversion channel is opened below the arc-shaped grooves. The confluence of the diversion channels is connected to an inlet, and the diversion channel on the other side is connected to an outlet.

3. The grinding equipment for slender rolls according to claim 1, characterized in that: The top plate has symmetrically distributed shock-absorbing dampers on both sides. The shock-absorbing dampers are connected to the sliding block by an interference fit, and the sliding block is connected to the device base by a sliding fit.

4. The grinding equipment for slender rolls according to claim 3, characterized in that: The connection between the connecting block and the top plate is a fixed connection, the connection between the connecting block and the hydraulic damper is a fixed connection, and the connection between the hydraulic damper and the bottom plate is a sliding connection.

5. The grinding equipment for slender rolls according to claim 4, characterized in that: The rubber block has grooves on both sides of its center, and connecting blocks and a base plate are attached to the upper and lower sides of the rubber block, respectively. The length and width of the rubber block are the same as those of the base plate.

6. The grinding equipment for slender rolls according to claim 5, characterized in that: The limiting rods are symmetrically distributed above the base plate. The limiting rods are slidably connected to the connecting blocks, and the limiting rods are fixedly connected to the base plate.

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