A device for rolling up a large curvature guard plate
By combining a base plate, fixed block, support block, moving block, U-shaped pin, tension spring and screw, the problem of lack of limit self-locking in the boiler large curvature guard plate rolling device is solved, realizing stable rolling of the guard plate and simple pre-welding, and improving the welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GRETECH (SUZHOU) METAL MFG CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-30
AI Technical Summary
The existing boiler large curvature guard plate rolling device lacks a limit self-locking mechanism, resulting in poor contact between the two ends of the guard plate, which affects the subsequent pre-welding treatment of the joint.
It adopts a combination structure of base plate, fixed block, support block, moving block, U-shaped pin, tension spring and screw. The moving block is driven by a winch to move, so as to realize the gradual shaping and limiting fixation of the guard plate. Pre-welding is carried out in combination with welding machine.
This method enables stable rolling of the protective plate and simple pre-welding operations, ensuring the stability of the protective plate and the tightness of the joints, thereby improving the quality of subsequent welding.
Smart Images
Figure CN224423920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of boiler liner processing technology, and in particular to a device for rolling large curvature liner. Background Technology
[0002] Boiler liner plates are important structural components in boiler systems. They typically have good thermal insulation properties, which can reduce heat loss during boiler operation, improve thermal efficiency, and reduce energy consumption. The liner plates can maintain stable temperature and pressure inside the boiler, preventing changes in the external environment from affecting boiler operation. The liner plates are usually circular, so during the manufacturing process, a device is needed to roll the straight liner plates into a circular shape.
[0003] Currently, the rolling operation of boiler large curvature guard plates is mostly carried out by hydraulic pushing, which gradually shapes the straight guard plate into a circle. However, in actual operation, the device itself lacks a limit self-locking mechanism, which can easily lead to poor contact at both ends of the guard plate, affecting the subsequent pre-welding treatment of the joint. Utility Model Content
[0004] This utility model relates to a large curvature guard plate rolling device, which solves the problem that existing large curvature guard plate rolling operations for boilers mostly use hydraulic pushing to gradually shape straight guard plates into circles. However, in actual operation, the device itself lacks a limiting and self-locking mechanism, which easily leads to poor contact between the two ends of the guard plate, affecting the subsequent pre-welding treatment of the joint.
[0005] In a first aspect, this utility model provides a device for rolling a large curvature guard plate, specifically comprising: a base plate, a fixed block, a support block, a movable block, a U-shaped pin, a tension spring, and a screw; the fixed block and the support block are fixedly installed on the top of the base plate, the support block is connected to the fixed block, and the inner side of the fixed block is arc-shaped; the movable block is connected to the top of the base plate, the movable block is connected to the support block, and the inner side of the movable block is arc-shaped; the top of the movable block is connected to the U-shaped pin, and the bottom of the U-shaped pin is connected to the support block; two tension springs are connected to the outside of the U-shaped pin, and a screw is connected through the inside of the U-shaped pin.
[0006] Furthermore, the bottom side of the movable block is in sliding contact with the top side of the base plate, a guide rod is provided on the outside of the support block, the end of the guide rod is connected to the fixed block, and guide holes are symmetrically provided inside the movable block, with the guide rod sliding through the guide holes provided in the movable block.
[0007] Furthermore, a pulley A is provided on the outside of the fixed block, and a winch A is installed on the outside of the fixed block. The wire rope of the winch A is in contact with the pulley A, and the end of the wire rope is fixedly connected to the movable block.
[0008] Furthermore, a pulley B is provided on the outside of the support block, and a winch B is installed on the outside of the support block. The wire rope of the winch B is in contact with the pulley B, and the end of the wire rope is fixedly connected to the movable block.
[0009] Furthermore, the guide rod is provided with a positioning groove inside, and the movable block is provided with vertical holes symmetrically inside. The vertical holes are connected to the guide holes, and the positioning groove is connected to the vertical holes provided on the movable block.
[0010] Furthermore, the two ends of the U-shaped pin slide through the vertical hole, and the end of the U-shaped pin is inserted into the positioning groove.
[0011] Furthermore, the top of the moving block is symmetrically provided with a lower connecting hole, the bottom end of the tension spring is connected to the lower connecting hole, and the inside of the U-shaped pin is symmetrically provided with an upper connecting hole, the top end of the tension spring is connected to the upper connecting hole.
[0012] Furthermore, the U-shaped pin has a screw hole inside, and the screw is threaded into the screw hole provided in the U-shaped pin, with the bottom end of the screw contacting the top of the moving block.
[0013] This utility model provides a device for rolling up a large curvature guard plate, which has the following beneficial effects:
[0014] In use, when the guard plate is placed between the fixed block and the moving block, winch A drives the moving block to move inward, bending the guard plate first. Winch B then drives the moving block to move outward, adjusting the bent guard plate. Winch A then drives the moving block to move inward again, bringing it into contact with the fixed block. The moving and fixed blocks together shape the guard plate into a circle, making the operation simpler.
[0015] In addition, when the moving block comes into contact with the stationary block, the vertical hole and the guide hole are connected. The U-shaped pin moves downward under the influence of the tension spring, so that the end of the U-shaped pin is inserted into the positioning groove. The moving block is limited and fixed by the U-shaped pin, so that the workers can use the welding machine to pre-weld the joints at both ends of the guard plate to ensure the stability of the rolled state of the large curvature guard plate.
[0016] In addition, after the pre-welding treatment at the joints at both ends of the guard plate is completed, the screw is rotated, and the screw drives the U-shaped pin to move upward. The tension spring is stretched, and the end of the U-shaped pin separates from the positioning groove. The moving block is released from the limit, and the winch B can then drive the moving block to move outward again to remove the rolled-out high-curvature guard plate.
[0017] Other advantages, objectives and features of this invention will be apparent in part from the description which follows, and in part from the understanding of those skilled in the art through study and practice of this invention. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0019] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0020] In the attached diagram:
[0021] Figure 1 A schematic diagram of the overall axonometric structure of this application is shown;
[0022] Figure 2 A schematic diagram of the axial structure of the stabilizing block of this application is shown;
[0023] Figure 3 A schematic diagram of the axial structure of the support block of this application is shown;
[0024] Figure 4 A schematic diagram of the movable integral block axial structure of this application is shown;
[0025] Figure 5 A schematic diagram of the disassembled structure of the moving block, U-shaped pin, tension spring, and screw of this application is shown.
[0026] Figure label:
[0027] 1. Base plate; 2. Fixed block; 21. Pulley A; 3. Support block; 31. Guide rod; 311. Positioning groove; 32. Pulley B; 4. Moving block; 41. Guide hole; 42. Vertical hole; 43. Lower connecting hole; 5. Winch A; 6. Winch B; 7. U-pin; 71. Upper connecting hole; 72. Screw hole; 8. Tension spring; 9. Screw. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described 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.
[0029] Example 1: Please refer to Figures 1 to 5 :
[0030] This utility model proposes a large curvature guard plate rolling device, including: a base plate 1, a fixed block 2, a support block 3, a movable block 4, a U-shaped pin 7, a tension spring 8, and a screw 9; the fixed block 2 and the support block 3 are fixedly installed on the top of the base plate 1, the support block 3 is connected to the fixed block 2, and the inner side of the fixed block 2 is arc-shaped; the movable block 4 is connected to the top of the base plate 1, the movable block 4 is connected to the support block 3, and the inner side of the movable block 4 is arc-shaped; the top of the movable block 4 is connected to the U-shaped pin 7, and the bottom of the U-shaped pin 7 is connected to the support block 3; two tension springs 8 are connected to the outside of the U-shaped pin 7, and a screw 9 is connected through the inside of the U-shaped pin 7; the bottom side of the movable block 4 is in sliding contact with the top side of the base plate 1, a guide rod 31 is provided on the outside of the support block 3, the end of the guide rod 31 is connected to the fixed block 2, and guide holes 41 are symmetrically provided inside the movable block 4, through which the guide rod 31 slides. Inside some guide holes 41; a pulley A21 is provided on the outside of the fixed block 2, and a winch A5 is installed on the outside of the fixed block 2. The wire rope of the winch A5 is in contact with the pulley A21, and the end of the wire rope is fixedly connected to the movable block 4; a pulley B32 is provided on the outside of the support block 3, and a winch B6 is installed on the outside of the support block 3. The wire rope of the winch B6 is in contact with the pulley B32, and the end of the wire rope is fixedly connected to the movable block 4; when the guard plate is placed between the fixed block 2 and the movable block 4, the winch A5 drives the movable block 4 to move inward, bending the guard plate first. The winch B6 drives the movable block 4 to move outward, adjusting the bent guard plate. The winch A5 drives the movable block 4 to move inward again, and the movable block 4 contacts the fixed block 2. The guard plate is shaped into a circle by the movable block 4 and the fixed block 2, making the operation simpler.
[0031] In this embodiment of the utility model, the guide rod 31 is provided with a positioning groove 311, the movable block 4 is provided with vertical holes 42 symmetrically, the vertical holes 42 are connected to the guide hole 41, the positioning groove 311 is connected to the vertical holes 42 provided in the movable block 4, the two ends of the U-shaped pin 7 slide through the vertical holes 42, the end of the U-shaped pin 7 is inserted into the positioning groove 311, the top of the movable block 4 is provided with a lower connecting hole 43 symmetrically, the bottom end of the tension spring 8 is connected to the lower connecting hole 43, the U-shaped pin 7 is provided with an upper connecting hole 71 symmetrically, and the top end of the tension spring 8 is connected to the upper connecting hole 71.
[0032] Using the above technical solution, when the moving block 4 contacts the fixed block 2, the vertical hole 42 and the guide hole 41 are in a connected state. The U-shaped pin 7 moves downward under the influence of the tension spring 8, so that the end of the U-shaped pin 7 is inserted into the positioning groove 311. The moving block 4 is limited and fixed by the U-shaped pin 7, so that the workers can use the welding machine to pre-weld the joints at both ends of the guard plate to ensure the stability of the rolled state of the large curvature guard plate.
[0033] In Example 2, based on Example 1, a screw hole 72 is provided inside the U-shaped pin 7, and the screw 9 is threaded into the screw hole 72 provided in the U-shaped pin 7. The bottom end of the screw 9 contacts the top of the movable block 4.
[0034] Using the above technical solution, after the pre-welding treatment of the joints at both ends of the guard plate is completed, rotate the screw 9. The screw 9 drives the U-shaped pin 7 to move upward, the tension spring 8 is stretched, the end of the U-shaped pin 7 separates from the positioning groove 311, the moving block 4 is released from the limit, and the winch B6 can drive the moving block 4 to move outward again to take out the rolled large curvature guard plate.
[0035] The working principle of this embodiment is as follows: First, the guard plate is placed between the fixed block 2 and the movable block 4. The winch A5 drives the movable block 4 to move inward, bending the guard plate. Then, the winch B6 drives the movable block 4 to move outward, adjusting the bent guard plate. The winch A5 then drives the movable block 4 to move inward again, bringing it into contact with the fixed block 2. The movable block 4 and the fixed block 2 shape the guard plate into a circle. When the movable block 4 contacts the fixed block 2, the vertical hole 42 and the guide hole 41 are connected, and the U-shaped pin 7 is affected by the tension of the tension spring 8. The U-shaped pin 7 is moved downwards, so that its end is inserted into the positioning groove 311. The U-shaped pin 7 limits and fixes the movable block 4, so that the worker can use the welding machine to pre-weld the joints at both ends of the guard plate. After the pre-welding of the joints at both ends of the guard plate is completed, the screw 9 is rotated. The screw 9 drives the U-shaped pin 7 to move upwards. The tension spring 8 is stretched, and the end of the U-shaped pin 7 separates from the positioning groove 311. The movable block 4 is released from the limit, and the winch B6 can then drive the movable block 4 to move outwards again to remove the rolled large curvature guard plate.
[0036] The following points should be noted in this article:
[0037] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.
[0038] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.
[0039] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A large radius dolly coiler comprising: The base plate (1), fixed block (2), support block (3), movable block (4), U-shaped pin (7), tension spring (8) and screw (9) are characterized in that the fixed block (2) and support block (3) are fixedly installed on the top of the base plate (1), the support block (3) is connected to the fixed block (2), and the inner side of the fixed block (2) is arc-shaped; the movable block (4) is connected to the top of the base plate (1), the movable block (4) is connected to the support block (3), and the inner side of the movable block (4) is arc-shaped; the U-shaped pin (7) is connected to the top of the movable block (4), and the bottom of the U-shaped pin (7) is connected to the support block (3); two tension springs (8) are connected to the outside of the U-shaped pin (7), and a screw (9) is connected through the inside of the U-shaped pin (7).
2. The large curvature guard plate rolling device according to claim 1, characterized in that, The bottom side of the movable block (4) is in sliding contact with the top side of the base plate (1). A guide rod (31) is provided on the outside of the support block (3). The end of the guide rod (31) is connected to the fixed block (2). A guide hole (41) is symmetrically provided inside the movable block (4). The guide rod (31) slides through the guide hole (41) provided in the movable block (4).
3. The large curvature guard plate rolling device according to claim 1, characterized in that, The fixed block (2) is provided with a pulley A (21) on the outside, and a winch A (5) is installed on the outside of the fixed block (2). The wire rope of the winch A (5) is in contact with the pulley A (21), and the end of the wire rope is fixedly connected to the movable block (4).
4. The large curvature guard plate rolling device according to claim 1, characterized in that, The support block (3) is provided with a pulley B (32) on the outside, and a winch B (6) is installed on the outside of the support block (3). The wire rope of the winch B (6) is in contact with the pulley B (32), and the end of the wire rope is fixedly connected to the movable block (4).
5. The large curvature guard plate rolling device according to claim 2, characterized in that, The guide rod (31) has a positioning groove (311) inside, and the movable block (4) has symmetrical vertical holes (42) inside. The vertical holes (42) are connected to the guide hole (41), and the positioning groove (311) is connected to the vertical holes (42) provided on the movable block (4).
6. The large curvature guard plate rolling device according to claim 5, characterized in that, The two ends of the U-shaped pin (7) slide through the vertical hole (42), and the end of the U-shaped pin (7) is inserted into the positioning groove (311).
7. The large curvature guard plate rolling device according to claim 1, characterized in that, The top of the movable block (4) is symmetrically provided with a lower connecting hole (43), the bottom end of the tension spring (8) is connected to the lower connecting hole (43), the inside of the U-shaped pin (7) is symmetrically provided with an upper connecting hole (71), and the top end of the tension spring (8) is connected to the upper connecting hole (71).
8. A large curvature guard plate rolling device according to claim 7, characterized in that, The U-shaped pin (7) has a screw hole (72) inside, and the screw (9) is threaded into the screw hole (72) provided in the U-shaped pin (7). The bottom end of the screw (9) contacts the top of the moving block (4).