Angle steel fire bending heating device for power transmission tower manufacturing
By designing heating devices for the moving rotating component and clamping component, the problem of uneven heating of angle steel was solved, achieving uniform heating of angle steel in the heating box and improving bending quality and safety.
Patent Information
- Application Number
- CN202520130860.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The existing angle steel bending heating device cannot rotate during the heating process, resulting in uneven heating and affecting the bending quality.
A heating device comprising a moving and rotating component and a clamping component was designed. The inner cylinder is rotated by a motor-driven gear and gear ring, and the lateral movement and rotation of the angle steel are achieved by a lead screw and a track, ensuring uniform heating.
This method achieves uniform heating of angle steel in the heating box, improves bending quality and safety, and reduces the labor intensity of workers.
Smart Images

Figure CN223761854U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of angle steel heating technology, and in particular to an angle steel heating device for manufacturing power transmission towers. Background Technology
[0002] In the manufacturing of power transmission towers, a lot of angle steel is used. Angle steel, also known as angle iron, is a long strip of steel with two sides perpendicular to each other. When bending angle steel, it needs to be heated to a certain temperature with fire before bending. Therefore, special angle steel bending heating fixtures are required.
[0003] A search revealed Chinese Patent Publication No. CN217142017U, which discloses a heating fixture for angle steel used in the manufacture of power transmission towers. A moving mechanism is installed on the worktable. By utilizing the cooperation of the cavity, first servo motor, threaded rod, threaded sleeve, and sliding rod of the moving mechanism, the angle steel held by the clamping mechanism can be moved to place the angle steel into or remove it from the heating box. This greatly reduces the labor intensity of workers and increases the safety of the fixture during use.
[0004] The aforementioned angle steel bending heating fixture has certain defects during use, such as the inability to rotate the angle steel after it enters the heating chamber, and uneven heating in some areas, thus affecting the bending quality of the angle steel. Therefore, a new angle steel bending heating device for power transmission tower manufacturing is proposed to solve these problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a heating device for angle steel bending in the manufacture of power transmission towers, which aims to improve the problem in the prior art that angle steel cannot be rotated after entering the heating box, resulting in uneven heating and affecting the bending quality of the angle steel.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A heating device for arc-curing angle steel used in the manufacture of power transmission towers includes a base. A movable rotating assembly is provided on the surface of the base. The movable rotating assembly includes a track, which is fixedly connected to the surface of the base. A movable seat is slidably connected inside the track. A bracket is fixedly connected to the surface of the movable seat. A sleeve is fixedly connected to the top of the bracket. An inner cylinder is rotatably connected inside the sleeve. A toothed ring and a circular ring are fixedly connected to the outer wall of the inner cylinder. The toothed ring and the circular ring are respectively fitted to both ends of the sleeve.
[0008] As a further description of the above technical solution:
[0009] The inner cylinder is provided with a clamping assembly, which includes a threaded rod that passes through and is threadedly connected to the side wall of the inner cylinder. One end of the threaded rod is rotatably connected to a clamping plate, and the other end of the threaded rod is fixedly connected to a rotating wheel.
[0010] As a further description of the above technical solution:
[0011] A guide rod is fixedly connected to the side wall of the clamping plate, and the guide rod passes through and is slidably connected to the side wall of the inner cylinder.
[0012] As a further description of the above technical solution:
[0013] The side wall of the movable seat has a through hole, and a lead screw is threaded into the through hole. The end of the lead screw is rotatably connected to the inner wall of the track.
[0014] As a further description of the above technical solution:
[0015] A motor is fixedly connected to the end of the track. The output shaft of the motor passes through and is rotatably connected to the inner wall of the track. The output shaft of the motor is fixedly connected to the end of the lead screw.
[0016] As a further description of the above technical solution:
[0017] A second motor is fixedly connected to the surface of the sleeve, and a gear is fixedly connected to the output end of the second motor, which meshes with a gear ring.
[0018] As a further description of the above technical solution:
[0019] A heating box is fixedly connected to the surface of the base.
[0020] As a further description of the above technical solution:
[0021] The base is fixedly connected by four sets of symmetrically arranged support legs.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the rotating wheel drives the threaded rod to rotate, thereby controlling the distance between the two sets of clamping plates to clamp and fix the angle steel. The second motor drives the gear ring to rotate through the gear, which in turn drives the inner cylinder to rotate, so that the clamped angle steel rotates inside the heating box, and the angle steel is heated evenly in the heating box.
[0024] 2. In this utility model, the motor drives the moving seat to move laterally along the track through the lead screw. The bracket provides support for the inner cylinder and makes the sleeve and the moving seat move synchronously. The toothed ring and the circular ring position the inner cylinder, so that the sleeve and the inner cylinder move laterally synchronously and transport the angle steel into the interior of the heating box for heating. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of a heating device for arc-shaped steel used in the manufacture of power transmission towers, as proposed in this utility model.
[0026] Figure 2 This utility model provides a schematic diagram of the moving and rotating assembly of a heating device for arc-heated angle steel used in the manufacture of power transmission towers.
[0027] Figure 3 This utility model presents a schematic diagram of the clamping assembly of an angle steel heating device for manufacturing power transmission towers.
[0028] Legend:
[0029] 1. Base; 11. Support leg; 12. Heating box; 2. Moving and rotating assembly; 21. Track; 22. Moving seat; 23. Lead screw; 24. Motor 1; 25. Bracket; 26. Sleeve; 27. Inner cylinder; 28. Gear ring; 29. Circular ring; 210. Motor 2; 211. Gear; 3. Clamping assembly; 31. Threaded rod; 32. Clamping plate; 33. Rotating wheel; 34. Guide rod. Detailed Implementation
[0030] 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.
[0031] Reference Figure 1 This utility model provides an embodiment of a heating device for angle steel used in the manufacture of power transmission towers. The device includes a base 1, with four symmetrically arranged support legs 11 fixedly connected to the base 1. These support legs 11 provide stable support to the base 1, ensuring the stability of the device during operation. A heating chamber 12 is fixedly connected to the surface of the base 1. A circular heating port is provided on the side wall of the heating chamber 12 for the angle steel to enter and exit the chamber, allowing the angle steel to be heated.
[0032] Reference Figure 1 - Figure 2The base 1 has a movable rotating assembly 2 on its surface. This assembly allows for lateral movement and rotation of the angle steel, ensuring uniform heating within the heating chamber 12. The movable rotating assembly 2 includes a track 21 fixedly connected to the surface of the base 1. A movable seat 22 is slidably connected inside the track 21, providing a path for the lateral movement of the movable seat 22. A through hole is formed in the side wall of the movable seat 22, and a lead screw 23 is threaded into this hole. The end of the lead screw 23 is rotatably connected to the inner wall of the track 21, driving the movable seat 22 to move laterally along the interior of the track 21. A motor 24 is fixedly connected to the end of the track 21. The output shaft of the motor 24 passes through and is rotatably connected to the inner wall of the track 21. The output shaft of the motor 24 is fixedly connected to the end of the lead screw 23, driving the lead screw 23 to rotate, thus causing the movable seat 22 to move laterally.
[0033] Reference Figure 1 - Figure 2 A bracket 25 is fixedly connected to the surface of the movable base 22. A sleeve 26 is fixedly connected to the top of the bracket 25. The bracket 25 provides support for the inner cylinder 27 and allows the sleeve 26 to move synchronously with the movable base 22. The inner cylinder 27 is rotatably connected inside the sleeve 26. A toothed ring 28 and a circular ring 29 are fixedly connected to the outer wall of the inner cylinder 27. The toothed ring 28 and the circular ring 29 are respectively engaged with the two ends of the sleeve 26. The toothed ring 28 and the circular ring 29 are used to position the inner cylinder 27, so that the sleeve 26 and the inner cylinder 27 move laterally synchronously and the inner cylinder 27 maintains a stable position when rotating. A second motor 210 is fixedly connected to the surface of the sleeve 26. A gear 211 is fixedly connected to the output end of the second motor 210. The gear 211 meshes with the toothed ring 28. The second motor 210 drives the gear 211 to rotate through its output shaft, causing the meshing toothed ring 28 to rotate, thereby making the entire inner cylinder 27 rotate synchronously.
[0034] Reference Figure 2 - Figure 3 The inner cylinder 27 is equipped with a clamping assembly 3, which consists of two sets for clamping and fixing the angle steel, allowing the inner cylinder 27 to drive the angle steel to rotate and move synchronously. The clamping assembly 3 includes a threaded rod 31 that passes through and is threadedly connected to the side wall of the inner cylinder 27. One end of the threaded rod 31 is rotatably connected to a clamping plate 32, which fits against the side wall of the angle steel. The other end of the threaded rod 31 is fixedly connected to a rotating wheel 33, which drives the threaded rod 31 to rotate, thereby controlling the distance between the two clamping plates 32 and clamping and fixing the angle steel. A guide rod 34 is fixedly connected to the side wall of the clamping plate 32, passing through and slidably connected to the side wall of the inner cylinder 27. The guide rod 34 provides guidance for the clamping plate 32, allowing it to move smoothly.
[0035] Working principle: The angle steel is inserted into the inner cylinder 27. The rotating wheel 33 drives the threaded rod 31 to rotate, thereby controlling the distance between the two sets of clamping plates 32 to clamp and fix the angle steel. Motor 24 drives the moving seat 22 to move laterally along the track 21 via the lead screw 23. The bracket 25 provides support for the inner cylinder 27 and causes the sleeve 26 to move synchronously with the moving seat 22. The gear ring 28 and the circular ring 29 position the inner cylinder 27, allowing the sleeve 26 and the inner cylinder 27 to move laterally synchronously, conveying the angle steel into the heating chamber 12 for heating. During heating, motor 210 drives the gear ring 28 to rotate via the gear 211, which in turn drives the inner cylinder 27 to rotate, causing the clamped angle steel to rotate inside the heating chamber 12, ensuring uniform heating of the angle steel within the heating chamber 12.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A heating device for the fire curve of an angle steel for the manufacture of a power transmission tower, comprising a base (1), characterized in that: The surface of the base (1) is provided with a moving rotating assembly (2), the moving rotating assembly (2) comprises a track (21), the track (21) is fixedly connected on the surface of the base (1), the inside of the track (21) is slidably connected with a moving seat (22), the surface of the moving seat (22) is fixedly connected with a support (25), the top end of the support (25) is fixedly connected with a sleeve (26), the inside of the sleeve (26) is rotatably connected with an inner cylinder (27), the outer wall of the inner cylinder (27) is fixedly connected with a gear ring (28) and a circular ring (29), the gear ring (28) and the circular ring (29) are respectively fitted with both ends of the sleeve (26).
2. The angle fire curve heating device for manufacturing a power transmission tower according to claim 1, characterized in that: The inside of the inner cylinder (27) is provided with a clamping assembly (3), the clamping assembly (3) comprises a threaded rod (31), the threaded rod (31) penetrates and is screwedly connected on the side wall of the inner cylinder (27), one end of the threaded rod (31) is rotatably connected with a clamping plate (32), the other end of the threaded rod (31) is fixedly connected with a rotating wheel (33).
3. The corner fire heating device for manufacturing a power transmission tower angle steel according to claim 2, characterized in that: The side wall of the clamping plate (32) is fixedly connected with a guide rod (34), the guide rod (34) penetrates and is slidably connected on the side wall of the inner cylinder (27).
4. The corner fire heating device for manufacturing a power transmission tower angle steel according to claim 1, characterized in that: The side wall of the moving seat (22) is provided with a through hole penetrating the through hole, and the through hole is screwedly connected with a lead screw (23), the end of the lead screw (23) is rotatably connected on the inner wall of the track (21).
5. The corner fire heating device for manufacturing a power transmission tower angle steel according to claim 4, characterized in that: The end of the track (21) is fixedly connected with a motor one (24), the output shaft of the motor one (24) penetrates and is rotatably connected on the inner wall of the track (21), the output shaft of the motor one (24) is fixedly connected with the end of the lead screw (23).
6. The corner fire heating device for manufacturing a power transmission tower angle steel according to claim 1, characterized in that: The surface of the sleeve (26) is fixedly connected with a motor two (210), the output end of the motor two (210) is fixedly connected with a gear (211), the gear (211) is engaged with the gear ring (28).
7. The corner fire heating device for manufacturing a power transmission tower angle steel according to claim 1, characterized in that: The surface of the base (1) is fixedly connected with a heating box (12).
8. The corner fire heating device for manufacturing a power transmission tower angle steel according to claim 1, characterized in that: The base (1) is fixedly connected with four groups of symmetrically arranged supporting legs (11).
Citation Information
Patent Citations
Angle steel fire bending heating tool for electric iron tower manufacturing
CN217142017U