Cantilever roller head for heating furnace
By designing a locking mechanism of limiting balls and movable rods on the cantilever roll head, the steel quality problem caused by nodules on the surface of the cantilever roll head is solved, enabling rapid replacement of the roll head and improving the surface quality and replacement efficiency of the steel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-06
AI Technical Summary
Existing cantilever roll heads develop nodules on their surface under high-temperature conditions, causing pits on the surface of steel billets, affecting the quality of steel, and making replacement inconvenient.
A locking mechanism including a transmission rod, a connecting rod, a roller head, a limiting ball, and a movable rod is designed. The roller head can be quickly disassembled and installed by the cooperation of the limiting ball and the movable rod. The position of the limiting ball is controlled by a spring and a button to facilitate the replacement of the roller head.
It enables quick disassembly and installation of cantilever roll heads, avoids the formation of pits on the steel surface, improves steel quality, and simplifies the replacement process.
Smart Images
Figure CN223976435U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cantilever roller technology, specifically a cantilever roller head for a heating furnace. Background Technology
[0002] Currently, most heating furnaces used in the market are walking beam side-in, side-out rolling mills. The cantilever roller conveyor is responsible for transporting steel billets into the furnace for heating and for outputting the heated billets to the rolling mill to be rolled into finished steel. The cantilever roller head is located at the discharge end of the heating furnace, while the roller body and geared motor are located outside the furnace, transporting the heated steel billets out of the furnace. The cantilever roller head is made of high-alloy heat-resistant steel and must withstand the highest temperature of 1200°C-1300°C in the heating furnace. After the steel billets are transported from the water-cooled beam to the cantilever roller head, the alloy components on the surface of the cantilever roller head adhere to the carbides on the softened surface of the billet. Over time, nodules form on the surface of the cantilever roller head, pressing the softened surface of the billet into pits. When the pitted billet enters the rolling mill, the rolled steel will have longitudinal indentations of varying depths on the surface, resulting in scrap and significantly impacting the quality of the steel.
[0003] In the existing technology, it is inconvenient to replace these cantilever roller heads that have formed nodules. The cantilever roller head and the drive shaft are generally integrally formed, and these roller heads cannot be quickly removed for replacement or grinding as needed. Therefore, an improved cantilever roller head for heating furnaces is needed to address this problem. Utility Model Content
[0004] The purpose of this invention is to provide a cantilever roller head for a heating furnace to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cantilever roller head for a heating furnace, comprising a transmission rod, a connecting rod fixedly disposed at one end of the transmission rod, a roller head disposed on one side of the connecting rod, an installation groove being formed in the middle of the inner side of the roller head, and a locking mechanism for quickly locking and fixing the roller head being disposed between the connecting rod and the roller head, the locking mechanism comprising a limiting ball, a movable rod, a groove, and a limiting slot, the limiting ball being movably locked and disposed on all four sides of the inner side of the connecting rod through the locking slot, the movable rod being movably inserted inside the connecting rod, the groove being formed on the outer surface of the movable rod, and the limiting slot being formed on the inner side wall of the roller head, which is adapted to the shape of the limiting ball.
[0006] Preferably, a spring is provided on one side of the transmission rod. The spring can automatically push the movable rod to reset, causing the groove on the surface of the movable rod and the limiting ball to misalign. This prevents the limiting ball from moving down. If the limiting ball is stuck inside the limiting groove, the roller head and the connecting rod cannot be disassembled. When it is necessary to disassemble or install a new roller head, pressing the movable rod compresses the spring, which aligns the groove on the surface of the movable rod with the limiting ball. The groove then provides space for the limiting ball to move and retract into the connecting rod. At this point, the roller head can be easily pulled out or inserted into the connecting rod by force, thus facilitating the disassembly and installation of the roller head.
[0007] Preferably, a limiting ring is fixedly provided on the surface of the transmission rod, which can limit the depth of the roller head sleeved on the surface of the connecting rod.
[0008] Preferably, a button is fixedly provided at one end of the movable rod, and the button extends through the connecting rod to the outside of the connecting rod. By pressing the button, the movable rod can be easily moved.
[0009] Preferably, the transmission rod has a spline groove on its surface, which allows the transmission rod to be easily connected to the reducer and power equipment, thereby facilitating the rotation of the transmission rod and the roller.
[0010] Preferably, the connecting rod is a rectangular rod. When the rectangular connecting rod is inserted into the mounting groove of the roller head, the connecting rod can rotate and drive the roller head to rotate, so that the connecting rod and the roller head can be linked in the rotation direction.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. If nodules form on the surface of the roller head, simply press the button to compress the spring of the movable rod. This will align the groove on the surface of the movable rod with the limiting ball. The groove will then provide space for the limiting ball to retract into the connecting rod. At this point, simply insert or pull the roller head to remove it from the surface of the connecting rod, thus facilitating the disassembly and installation of the roller head.
[0013] 2. When it is necessary to fix the roller head, the roller head is sleeved on the outer surface of the connecting rod and the roller head is tightly attached to the surface of the limiting ring. At this time, the limiting ball and the limiting groove can be aligned. When the button is released, the spring can be reset under its own elasticity. At this time, the groove and the limiting ball will also be misaligned. Then the movable rod can push the multiple limiting balls outward and make the limiting balls snap into the limiting groove. In this way, the roller head can be fixed. The whole fixing process is convenient and quick. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a cantilever roller head for a heating furnace according to the present invention;
[0015] Figure 2 This utility model relates to a cantilever roller head for a heating furnace. Figure 1 A sectional view;
[0016] Figure 3 This is an installation view of the roller head in a cantilever roller head for a heating furnace according to the present invention;
[0017] Figure 4 This utility model relates to a cantilever roller head for a heating furnace. Figure 2 A sectional view.
[0018] In the diagram: 1. Transmission rod; 2. Connecting rod; 3. Roller head; 4. Mounting groove; 5. Limiting ball; 6. Movable rod; 7. Groove; 8. Limiting groove; 9. Spring; 10. Limiting ring; 11. Button; 12. Spline groove. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-4 This utility model provides a technical solution: a cantilever roller head for a heating furnace, including a transmission rod 1, a connecting rod 2 fixedly installed at one end of the transmission rod 1, a roller head 3 installed on one side of the connecting rod 2, an installation groove 4 opened in the middle of the inner side of the roller head 3, and an engagement mechanism for quickly engaging and fixing the roller head 3 between the connecting rod 2 and the roller head 3, the engagement mechanism including a limiting ball 5, a movable rod 6, a groove 7, and a limiting groove 8, the limiting ball 5 is movably engaged and installed around the inside of the connecting rod 2 through the groove, the movable rod 6 is movably inserted inside the connecting rod 2, the groove 7 is opened on the outer surface of the movable rod 6, and the limiting groove 8 is opened on the inner side wall of the roller head 3, which is adapted to the shape of the limiting ball 5.
[0021] A spring 9 is installed on one side inside the transmission rod 1. The spring 9 can automatically push the movable rod 6 to reset, causing the groove 7 on the surface of the movable rod 6 and the limiting ball 5 to misalign. In this way, the limiting ball 5 cannot move down. If the limiting ball 5 is stuck inside the limiting groove 8, the roller head 3 and the connecting rod 2 cannot be disassembled. When it is necessary to disassemble or install a new roller head 3, by pressing the movable rod 6, the movable rod 6 compresses the spring 9. At this time, the groove 7 on the surface of the movable rod 6 and the limiting ball 5 are aligned. The groove 7 then provides room for the limiting ball 5 to move and retract into the connecting rod 2. At this time, the roller head 3 can be pulled out or inserted into the surface of the connecting rod 2 simply by force. This makes it easy to disassemble and install the roller head 3.
[0022] A limiting ring 10 is fixedly provided on the surface of the transmission rod 1, which can limit the depth of the roller head 3 on the surface of the connecting rod 2.
[0023] A button 11 is fixedly provided at one end of the movable rod 6. The button 11 extends to the outside of the connecting rod 2 through the connecting rod 2. By pressing the button 11, the movable rod 6 can be easily moved.
[0024] The transmission rod 1 has a spline groove 12 on its surface. The spline groove 12 can be used to easily connect the transmission rod 1 to the reducer and the power equipment, so as to easily drive the transmission rod 1 and the roller head 3 to rotate.
[0025] The connecting rod 2 is a rectangular rod. When the rectangular connecting rod 2 is inserted into the mounting groove 4 of the roller head 3, the connecting rod 2 can rotate and drive the roller head 3 to rotate, so that the connecting rod 2 and the roller head 3 can be linked in the rotation direction.
[0026] Working principle: When using this device, the roller head 3 is fixed to the outer surface of the connecting rod 2 under the action of the limiting balls 5 and the limiting groove 8. Figure 3 , Figure 4 As shown, if a nodule forms on the surface of the roller head 3, simply press button 11 to compress spring 9 on movable rod 6. This will align groove 7 on the surface of movable rod 6 with limiting ball 5, allowing the limiting ball 5 to retract into the connecting rod 2. Then, simply insert or pull roller head 3 to remove or insert it from the surface of connecting rod 2, thus facilitating the disassembly and installation of roller head 3.
[0027] When it is necessary to fix the roller head 3, the roller head 3 is sleeved on the outer surface of the connecting rod 2, and the roller head 3 is tightly attached to the surface of the limiting ring 10. At this time, the limiting ball 5 and the limiting groove 8 can be aligned. Then, the button 11 is released, and the spring 9 can be reset under its own elasticity. At this time, the groove 7 and the limiting ball 5 will also be misaligned. Then, the movable rod 6 can push the multiple limiting balls 5 outward and make the limiting balls 5 snap into the limiting groove 8. In this way, the roller head 3 can be fixed, so that the connecting rod 2 can rotate and the roller head 3 can rotate together.
[0028] 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.
[0029] 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 cantilever roll roll head for a heating furnace, comprising a drive rod (1), characterized in that: The transmission rod (1) is fixedly provided with a connecting rod (2) at one end, one side of the connecting rod (2) is provided with a roller head (3), the inner side of the roller head (3) is provided with an installation slot (4) in the middle, a clamping mechanism for quickly clamping and fixing the roller head (3) is arranged between the connecting rod (2) and the roller head (3), the clamping mechanism comprises a limiting ball (5), a movable rod (6), a groove (7) and a limiting groove (8), the limiting ball (5) is movably clamped around the inner part of the connecting rod (2) through a clamping groove, the movable rod (6) is movably inserted into the inner part of the connecting rod (2), the outer side surface of the movable rod (6) is provided with the groove (7), and the inner side wall of the roller head (3) is provided with the limiting groove (8) which is matched with the shape of the limiting ball (5).
2. The cantilever roll roll head for a heating furnace according to claim 1, characterized by: The transmission rod (1) is provided with a spring (9) on one side.
3. The cantilever roll roll head for a heating furnace according to claim 1, characterized in that: The transmission rod (1) is fixedly provided with a limiting ring (10) on the surface.
4. The cantilever roll roll head for a heating furnace according to claim 1, characterized by: One end of the movable rod (6) is fixedly provided with a button (11), the button (11) is movably inserted through the connecting rod (2) and extends to the outer side of the connecting rod (2).
5. The cantilever roll roll head for a heating furnace according to claim 1, characterized by: The surface of the transmission rod (1) is provided with a spline groove (12).
6. The cantilever roll roll head for a heating furnace according to claim 1, characterized by: The connecting rod (2) is a rectangular rod.