A mechanism for facilitating quench roll change
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN ZHIWEI YULONG ROLL TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional quenching equipment cannot handle the change of double rolls simultaneously, resulting in cumbersome loading and unloading processes, long equipment waiting time, affecting production efficiency and consistency of quenching quality. In addition, frequent chuck switching leads to wear and tear on mechanical parts, increasing maintenance costs.
A mechanism for easy replacement of quenching rolls was designed, including a main seat, a secondary seat, a spacing support assembly, and a chuck replacement assembly. The mechanism utilizes components such as slide rails, drive screws, and hydraulic cylinders to achieve synchronous chuck installation and disassembly of the two rolls. The mechanism adapts to different roll lengths and positioning accuracies through a double-threaded structure and V-shaped support grooves.
It enables synchronous replacement of dual rolls, reduces waiting time, improves quenching efficiency, ensures consistency of quenching quality and equipment stability, and reduces wear and maintenance costs of mechanical parts.
Smart Images
Figure CN224530969U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the technical field of roll processing, and more specifically, to a mechanism for facilitating the replacement of quenched rolls. Background Technology
[0002] In the metal processing industry, rolling mill rolls are the core components of rolling production lines, and the efficiency of their quenching process directly determines the production rhythm and product quality. However, traditional quenching equipment generally suffers from a technical bottleneck in handling dual-roll changes simultaneously, resulting in cumbersome loading and unloading processes, long equipment waiting times, and severely restricting the improvement of production efficiency.
[0003] Traditional roll quenching mechanisms typically employ a single-station chuck design, allowing for the disassembly and installation of rolls one at a time. The next roll to be processed requires the operator to first remove the already quenched roll and then install the roll to be quenched, consuming chuck resources in sequence, leaving the equipment idle during this period. This model splits the roll changeover process into two independent stages, and the ineffective waiting time during chuck switching significantly reduces overall changeover efficiency. For example, when processing twin-roll structures, traditional mechanisms cannot avoid the segmented operation of "disassembly → waiting for chuck release → installation," which can trigger a chain reaction of disruptions in upstream and downstream equipment, impacting processing efficiency.
[0004] Traditional sequential loading and unloading methods, due to the intervals between chuck switching, may result in significant temperature differences or positioning deviations between the first and last installed rolls. This not only affects the consistency of quenching quality but also increases operational complexity due to repeated adjustments of chuck parameters. Furthermore, frequent chuck switching can exacerbate wear on mechanical components, increasing equipment maintenance costs.
[0005] With the manufacturing industry's increasing demand for efficient production and process stability, the traditional single-station changeover mode has become a major obstacle to capacity expansion. Developing a new mechanism capable of synchronous loading and unloading of dual rolls is urgently needed. Utility Model Content
[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a mechanism for easy replacement of quenching rolls, which solves the technical problem in the prior art that the two operations require the sequential occupation of chuck resources, during which the equipment is in an unloaded state, resulting in invalid waiting during the chuck switching process, which significantly reduces the overall replacement efficiency.
[0007] According to one aspect, at least one embodiment of this disclosure provides a mechanism for facilitating the replacement of quenching rolls, comprising: A main seat and a secondary seat, wherein the secondary seat is disposed outside the main seat; A spacing support assembly is disposed between the main seat and the auxiliary seat; A set of outer frames and a chuck replacement assembly, wherein the outer frames are all disposed outside the main base, and the chuck replacement assembly is disposed on the outer frames; The chuck replacement assembly includes a pair of slide rails, both of which are slidably connected to the two ends of the main seat side surface. The outer frame is connected to the pair of slide rails. The outer frame is provided with a pair of side sleeves. The side surface of the side sleeves is provided with an elongated groove. A pair of fixing holes are provided on the top of the side sleeves and in the elongated groove.
[0008] As a further technical solution, a pair of transverse grooves are provided on the surface of the outer frame, and a drive screw is rotatably connected in the pair of transverse grooves. The lower end of the side sleeve is slidably connected in the transverse grooves, and the lower end of the side sleeve is connected to the drive screw through a threaded engagement.
[0009] As a further technical solution, the spacing support assembly includes a pair of side grooves, which are formed on both sides of the main seat. Several threaded grooves are formed in the side grooves, and connecting rods are provided at both ends of the surface of the sub-seat.
[0010] As a further technical solution, the connecting rod is movably fitted into the side groove, a fixing bolt is inserted into the connecting rod, one end of the fixing bolt is screwed into the threaded groove, and support grooves are provided on both the sub-seat and the main seat.
[0011] As a further technical solution, a pair of fixing blocks are provided on the side surface of the auxiliary seat, a hydraulic cylinder is provided at the bottom of the fixing blocks, a support is provided at the output end of the hydraulic cylinder, a pair of movable rods are provided at the bottom of the support, and the lower end of the movable rods is movably fitted into the fixing blocks.
[0012] As a further technical solution, both the support groove and the bracket have a V-shaped cross-section.
[0013] As a further technical solution, the drive screw has a double-threaded structure, and the thread directions at both ends of the drive screw are positive helix and negative helix, respectively.
[0014] As a further technical solution, a rocking rod is provided at one end of the drive screw.
[0015] The beneficial effects of the embodiments disclosed herein are as follows: 1. In this disclosure, the chuck replacement assembly enables the outer frame to slide flexibly through a pair of slide rails. In conjunction with the double-threaded structure of the drive screw, it can synchronously drive the two side sleeves to move, so that the double roll chucks can be quickly aligned with the rolls for connection and installation. During the quenching process of one roll, the chuck of the next roll can be installed. After the roll is quenched, it can fall back to its original position, and then the other roll with the chuck installed can be removed. This can save the waiting time for reciprocating loading and unloading of a single roll and improve the efficiency of quenching.
[0016] 2. In this disclosure, the spacing support assembly can be precisely adapted to rolls of different lengths through the adjustment design of the side groove and the threaded groove. The V-shaped support groove and the support seat ensure that the roll is stably centered. The cooperation of the hydraulic cylinder and the movable rod provides dynamic support to adapt to the difference in roll diameter. This assembly not only enhances the equipment's compatibility with diverse rolls, but also provides a solid foundation for chuck replacement, ensuring the positioning accuracy and stability when the two rolls are replaced simultaneously. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0018] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 Appendix to this disclosure Figure 1 Enlarged view of part A in the middle; In the diagram: 1. Main seat; 2. Sub-seat; 3. Outer frame; 4. Chuck replacement assembly; 4-1. Slide rail; 4-2. Side sleeve; 4-3. Long slot; 4-4. Fixing hole; 4-5. Horizontal slot; 4-6. Drive screw; 5. Spacing support assembly; 5-1. Side slot; 5-2. Threaded slot; 5-3. Connecting rod; 5-4. Fixing bolt; 5-5. Support slot; 5-6. Fixing block; 5-7. Hydraulic cylinder; 5-8. Support; 5-9. Movable rod; 6. Rocking rod. Detailed Implementation
[0019] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0020] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0022] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0023] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0024] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0025] like Figures 1-3 As shown, it illustrates a mechanism for facilitating the replacement of quenching rolls according to an embodiment of the present disclosure, comprising: A main seat 1 and a secondary seat 2, wherein the secondary seat 2 is disposed outside the main seat 1; A spacing support assembly is disposed between the main seat 1 and the auxiliary seat 2; A pair of outer frames 3 and a clamp replacement assembly 4 are provided. The outer frames 3 are both located outside the main seat 1, and the clamp replacement assembly 4 is located on the outer frames 3. The chuck replacement assembly 4 includes a pair of slide rails 4-1, both of which are slidably connected to the two ends of the side surface of the main seat 1. The outer frame 3 is connected to the pair of slide rails 4-1. A pair of side sleeves 4-2 are provided on the outer frame 3. The side surface of the side sleeves 4-2 is provided with an elongated groove 4-3. A pair of fixing holes 4-4 are provided on the top of the side sleeves 4-2 and in the elongated grooves 4-3. A pair of transverse grooves 4-5 are provided on the surface of the outer frame 3. A drive screw 4-6 is rotatably connected in the pair of transverse grooves 4-5. The lower end of the side sleeve 4-2 is slidably connected in the transverse grooves 4-5. The lower end of the side sleeve 4-2 is connected to the drive screw 4-6 by a threaded engagement.
[0026] In some examples, during the chuck replacement operation of the quenching roll, a chuck replacement assembly 4 is designed to facilitate convenient installation and removal of the chuck. This assembly is based on a pair of slide rails 4-1 slidably connected to both ends of the side surface of the main seat 1. The outer frame 3 is connected to the slide rails 4-1 and can move along the direction of the slide rails 4-1 to facilitate adjustment of the chuck replacement position. A pair of side sleeves 4-2 on the outer frame 3 have long slots 4-3 on their side surfaces to facilitate chuck installation and positioning. The top and the fixing holes 4- in the long slots 4-3 are also included. 4 can be fixedly connected to the chuck by bolts. The drive screw 4-6, which is rotatably connected in the transverse groove 4-5 on the surface of the outer frame 3, is threaded to the lower end of the side sleeve frame 4-2. When the chuck needs to be installed, rotate the drive screw 4-6 to slide the side sleeve frame 4-2 along the transverse groove 4-5 to the appropriate position, place the chuck in the side sleeve frame 4-2, and fix the chuck firmly to the side sleeve frame 4-2 through the fixing hole 4-4 and bolts. Then move the outer frame 3 to install the chuck onto the roll. When disassembling, simply reverse the operation.
[0027] Through the coordinated operation of components such as slide rail 4-1, side sleeve frame 4-2, fixing hole 4-4, transverse groove 4-5, and drive screw 4-6, the chuck replacement assembly 4 enables the chuck to be fixed to the side sleeve frame 4-2 by bolts, thus completing the function of installing and removing the chuck from the roll.
[0028] like Figures 1-3As shown in the figure, the spacing support assembly proposed in this embodiment includes a pair of side grooves 5-1, which are formed on both sides of the main seat 1. The side grooves 5-1 are provided with a plurality of threaded grooves 5-2. The auxiliary seat 2 is provided with connecting rods 5-3 at both ends of its surface. The connecting rods 5-3 are movably fitted into the side grooves 5-1. Fixing bolts 5-4 are inserted into the connecting rods 5-3. One end of the fixing bolts 5-4 is screwed into the threaded grooves 5-2. The auxiliary seat 2 and the main seat 1 are provided with support grooves 5-5. The auxiliary seat 2 is provided with a pair of fixing blocks 5-6 on its side surface. The bottom of the fixing blocks 5-6 is provided with a hydraulic cylinder 5-7. The output end of the hydraulic cylinder 5-7 is provided with a support 5-8. The bottom of the support 5-8 is provided with a pair of movable rods 5-9. The lower end of the movable rods 5-9 is movably fitted into the fixing blocks 5-6.
[0029] In some examples, a spacing support assembly is designed to accommodate the support requirements of rolls of different lengths. This assembly uses the side grooves 5-1 on both sides of the main seat 1 as the adjustment basis. Several threaded grooves 5-2 in the side grooves 5-1 provide different fixing points. The connecting rods 5-3 at both ends of the surface of the auxiliary seat 2 are movably fitted in the side grooves 5-1. By inserting fixing bolts 5-4 into the connecting rods 5-3 and screwing them into different threaded grooves 5-2, the spacing between the auxiliary seat 2 and the main seat 1 can be precisely adjusted to accommodate rolls of different lengths.
[0030] The support grooves 5-5 on the auxiliary seat 2 and the main seat 1 are used to support the roll. The hydraulic cylinder 5-7 at the bottom of the fixed block 5-6 on the side surface of the auxiliary seat 2 has a support 5-8 at its output end that can move up and down to provide auxiliary support for the roll. The front and rear ends of the roll have different diameters. The lower end of the movable rod 5-9 at the bottom of the support 5-8 is movably fitted inside the fixed block 5-6 to keep the support 5-8 stable during the lifting and lowering process.
[0031] Through the coordinated work of components such as side groove 5-1, threaded groove 5-2, connecting rod 5-3, fixing bolt 5-4, support groove 5-5, fixing block 5-6, hydraulic cylinder 5-7, support 5-8 and movable rod 5-9, the spacing support assembly realizes the function of adjusting the support range according to the length of different rolls, ensuring that all types of rolls can be stably supported during the quenching process.
[0032] For example, such as Figure 1 As shown, both the support groove 5-5 and the bracket 5-8 have a V-shaped cross-section.
[0033] In some examples, the V-shaped structure allows the rolls to be kept in a centered position, preventing them from rolling.
[0034] For example, such as Figure 1As shown, the drive screw 4-6 has a double-threaded structure, and the thread directions at both ends of the drive screw 4-6 are positive helix and negative helix, respectively.
[0035] In some examples, by using different thread directions, it is possible to control the two side sleeves 4-2 to move synchronously toward the center or outwards.
[0036] For example, such as Figure 1 As shown, a rocking rod 6 is provided at one end of the drive screw 4-6.
[0037] In some examples, a rocker arm 6 is provided, allowing for manual operation, which is more flexible and less prone to malfunction.
[0038] In practical use: Based on the length of the roll to be quenched, adjust the position of the fixing bolt 5-4 in the threaded groove 5-2 of the side groove 5-1, adjust the distance between the auxiliary seat 2 and the main seat 1, so that the support groove 5-5 fits the two ends of the roll. The hydraulic cylinder 5-7 drives the support 5-8 to rise and fall stably through the movable rod 5-9. The roll is fixed in the support groove 5-5 using the V-shaped structure. When the chuck needs to be replaced, shake the drive screw 4-6, and use the double-ended thread to drive the two side sleeves 4-2 to move along the transverse groove 4-5. Align the chuck with the roll shaft head, position it through the long groove 4-3, and fix it with bolts through the fixing hole 4-4. The outer frame 3 slides along the slide rail 4-1 to complete the chuck installation. When disassembling, operate in reverse, remove the old chuck and install the new chuck at the same time. The second roll can be put directly after the first roll is fully quenched without waiting time or waiting for the chuck to be released, thus improving the replacement efficiency.
[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A mechanism for facilitating the replacement of quenching rolls, characterized in that, include: A main seat (1) and a secondary seat (2), wherein the secondary seat (2) is disposed outside the main seat (1); A spacing support assembly (5) is disposed between the main seat (1) and the auxiliary seat (2); A pair of outer frames (3) and a clamp replacement assembly (4) are provided. The outer frames (3) are both located outside the main seat (1), and the clamp replacement assembly (4) is located on the outer frames (3). The clamp replacement assembly (4) includes a pair of slide rails (4-1), both of which are slidably connected to the two ends of the side surface of the main seat (1). The outer frame (3) is connected to the pair of slide rails (4-1). A pair of side sleeves (4-2) are provided on the outer frame (3). The side surface of the side sleeves (4-2) is provided with a long groove (4-3). A pair of fixing holes (4-4) are provided on the top of the side sleeves (4-2) and in the long groove (4-3).
2. The mechanism for facilitating the replacement of quenching rolls according to claim 1, characterized in that, The outer frame (3) has a pair of transverse grooves (4-5) on its surface. A drive screw (4-6) is rotatably connected in the pair of transverse grooves (4-5). The lower end of the side sleeve (4-2) is slidably connected in the transverse grooves (4-5). The lower end of the side sleeve (4-2) is connected to the drive screw (4-6) by a threaded engagement.
3. The mechanism for facilitating the replacement of quenching rolls according to claim 1, characterized in that, The spacing support assembly (5) includes a pair of side grooves (5-1), which are opened on both sides of the main seat (1). Several threaded grooves (5-2) are opened in the side grooves (5-1), and connecting rods (5-3) are provided at both ends of the surface of the sub-seat (2).
4. The mechanism for facilitating the replacement of quenching rolls according to claim 3, characterized in that, The connecting rod (5-3) is movably fitted into the side groove (5-1), and a fixing bolt (5-4) is inserted into the connecting rod (5-3). One end of the fixing bolt (5-4) is screwed into the threaded groove (5-2). Support grooves (5-5) are provided on both the sub-seat (2) and the main seat (1).
5. The mechanism for facilitating the replacement of quenching rolls according to claim 4, characterized in that, The side surface of the sub-seat (2) is provided with a pair of fixing blocks (5-6), the bottom of the fixing block (5-6) is provided with a hydraulic cylinder (5-7), the output end of the hydraulic cylinder (5-7) is provided with a support (5-8), the bottom of the support (5-8) is provided with a pair of movable rods (5-9), and the lower end of the movable rods (5-9) is movably fitted into the fixing block (5-6).
6. The mechanism for facilitating the replacement of quenching rolls according to claim 5, characterized in that, Both the support groove (5-5) and the bracket (5-8) have a V-shaped cross-section.
7. The mechanism for facilitating the replacement of quenching rolls according to claim 2, characterized in that, The drive screw (4-6) has a double-threaded structure, and the thread directions at both ends of the drive screw (4-6) are positive and negative respectively.
8. The mechanism for facilitating the replacement of quenching rolls according to claim 2, characterized in that, A rocking rod (6) is provided at one end of the drive screw (4-6).