A wire hanging device for furnace bottom mechanical frame assembly
By combining the design of the wire hanging frame and guide wheel assembly, the problems of insufficient precision and safety hazards in the assembly of the traditional wire hanging device in the furnace bottom mechanical frame are solved, realizing high-precision billet conveying and safe measurement process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGYE JINGCHENG (YANGZHOU) METALLURGY TECH IND CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing furnace bottom mechanical frame assembly process, the traditional wire hanging device lacks guide wheel components, which makes it impossible to lock the steel wire in the lateral direction, making it easy to shift. In addition, the measurement accuracy is low, which cannot meet the requirements of high-precision assembly, and poses safety hazards and wear problems.
A device including a wire hanging frame and a wire hanging guide wheel assembly was designed. Through the cooperation of the guide wheel assembly and the lower assembly, the center line can be accurately measured and adjusted, ensuring the symmetry of the rollers on both sides. The guide wheel structure avoids the wear of the steel wire, and a total station or laser theodolite can be used to achieve rapid measurement by a single person.
This ensures that the positional deviation between the single-sided roller and the furnace centerline does not exceed 1mm, preventing the billet from deviating during transport, improving measurement accuracy and efficiency, and avoiding wire wear and safety hazards.
Smart Images
Figure CN224415937U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of furnace bottom mechanical frame assembly technology, specifically relating to a hanging device for assembling furnace bottom mechanical frames. Background Technology
[0002] The billet heating furnace is a large-scale piece of equipment. The furnace bottom machinery is one of the core components of the entire heating furnace. It is mainly used to support the two frames, water seal device, water beam, riser, and other components inside the furnace, as well as the billet inside the furnace, and to move the billet along the length of the furnace. It includes a lifting frame, a translation frame, and a hydraulic system. The main components of the hydraulic system are the actuators, power source, and control valve group, and it is equipped with a corresponding electrical control system.
[0003] During the process of the lifting frame raising the steel billet, the translation frame moves forward to lift the lifting frame, which then transports the steel billet. The lifting frame then descends, and the steel billet is transported forward through the reciprocating motion of the stepping machine.
[0004] The furnace bottom machinery is quite long and needs to be manufactured in sections. Furthermore, to ensure the steel billets do not deviate during transport within the heating furnace (e.g., within a 15-meter furnace width, deviation should be less than 30mm), strict control over the assembly precision of the furnace bottom machinery is required. The parallelism between the rollers responsible for lifting and forward movement within the furnace bottom machinery and the furnace centerline must be controlled within 0.5mm, as specified in GB50825-2013 "Code for Acceptance of Quality of Heating Furnace Engineering in Steel Plants". This represents a high precision requirement for large structural components.
[0005] Currently, the length of typical furnace bottom machinery is 30-70m and the width is 4-7m. Due to the ultra-long structure of 30-70m and the spatial dimensions of 4-7m, it is difficult to guarantee the alignment of the lifting frame and the translation frame. The assembly deviation tolerance between the single-sided roller assembly and the furnace centerline needs to be strictly controlled within ±1mm. However, the existing assembly process is affected by thermal deformation and cumulative errors, resulting in inaccurate and asymmetrical assembly of the furnace bottom machinery frame, which easily causes the billet to deviate during transportation.
[0006] Traditional wire tensioning devices are mostly fixed structures to ensure wire tension, but they have the following main problems:
[0007] 1. Without guide wheel assembly, the steel wire is directly wrapped around the hook or fastener, which cannot be locked laterally. Once it is hit, it may be displaced, thus affecting the overall assembly accuracy of the furnace bottom machinery.
[0008] 2. Steel wire is easily worn. To ensure measurement accuracy, the diameter of the steel wire is generally no more than 2mm, the sag is 1mm / m, and it needs to withstand a large tension (about 200kgf for a 70m length). The steel wire at the hook of the traditional pull-wire fixing method is easily worn, which poses a safety hazard of accidental breakage.
[0009] 3. Traditional wire-hanging methods lack precise lateral adjustment capabilities. Therefore, during manufacturing, only one steel wire—the center line of the furnace—is used. Other indirect methods are then used to measure the deviation of the two rollers relative to the center line (using a steel ruler with a spring scale, requiring four people: two to pull the ruler on the outer end of the roller, one to pull the spring scale at the end of the ruler, and one in the middle to align the theoretical center line scale with the steel wire. The readings are then used to confirm the correct position of the rollers). This method has low measurement accuracy and is far from meeting testing requirements. Utility Model Content
[0010] In response to the problems mentioned in the background art, this utility model proposes a hanging device for assembling the mechanical frame of the furnace bottom, which can measure the center line to ensure symmetry on both sides and make the deviation of the single-sided roller from the furnace center line not exceed 1mm, so as to ensure that the steel billet does not deviate during the conveying process.
[0011] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0012] A wire hanging device for assembling a mechanical frame at the bottom of a furnace includes a wire hanging frame, which comprises an upper component and a lower component. The upper component is provided with a wire hanging guide wheel assembly, and the lower component includes two first support frames and two second support frames. The center line is measured by the cooperation between the wire hanging guide wheel assembly and the lower component, ensuring symmetry on both sides.
[0013] Preferably, the first support frame includes a first channel steel, a column channel steel, a second channel steel, a pad, and a first support angle steel; there are two first channel steels and two column channel steels; the two first channel steels are respectively disposed on the inner side of the upper and lower ends of the two column channel steels, the second channel steel is disposed between the two column channel steels, the pad is disposed at the bottom end of the column channel steel, and the first support angle steel is disposed between the two column channel steels.
[0014] Preferably, the first supporting angle steel is beveled at both ends, and there are multiple of them. They are inclinedly arranged between the two column channel steels, and the multiple first supporting angle steels are connected in a V-shape.
[0015] Preferably, the second support frame includes a third channel steel and a second supporting angle steel; there are two third channel steels, which are located on the inner side of the upper and lower ends of the column channel steel, respectively, and the second supporting angle steel is located between the two third channel steels and is connected to the column channel steel.
[0016] Preferably, the two ends of the third channel steel are connected to the first channel steel.
[0017] Preferably, the second supporting angle steel is beveled at both ends, and there are multiple of them. They are inclinedly set on the two column channel steels, and the multiple second supporting angle steels are connected in a V-shape.
[0018] Preferably, the upper component includes a rectangular tube column, a rectangular tube sleeve, a third supporting angle steel, and a fourth supporting angle steel; the rectangular tube column is mounted on the first channel steel; the rectangular tube sleeve is mounted on the rectangular tube column; the third supporting angle steel is inclined, with one end connected to the rectangular tube column and the other end connected to the first channel steel; the fourth supporting angle steel is inclined, with one end connected to the rectangular tube column and the other end connected to the third channel steel.
[0019] Preferably, the hanging guide wheel assembly includes an internal hexagon screw, a first nut, a V-groove bearing, a positioning sleeve, and a second nut; the first nut is disposed on the internal hexagon screw, and the V-groove bearing, the positioning sleeve, and the second nut are sequentially disposed at one end of the internal hexagon screw.
[0020] As a preferred option, round steel bars are provided on both the channel steel and rectangular tube columns.
[0021] Beneficial effects: Compared with the prior art, the present invention has the following advantages:
[0022] (1) The hanging device for assembling the mechanical frame of the furnace bottom of this utility model can measure the center line to ensure symmetry on both sides, so that the deviation of the single roller from the center line of the furnace does not exceed 1mm, and ensure that the billet does not run off course during the conveying process.
[0023] (2) Traditional hanging devices do not have guide wheel assemblies. The steel wire is directly wrapped around the hook or fixing part, which cannot be locked in the lateral direction and is prone to displacement after collision. The V-groove structure in the guide wheel assembly of the present invention can control the lateral fixing accuracy of the steel wire within 0.1mm (the matching guide wheel needs to be selected according to the diameter of the steel wire).
[0024] (3) The wire at the hook of the traditional hanging device is easily worn. The present invention can avoid wear on the wire by setting a guide wheel structure (hanging guide wheel assembly).
[0025] (4) Traditional wire hanging methods do not have precise lateral adjustment functions, and require multiple people to cooperate in measurement, resulting in low measurement efficiency. The device of this invention can precisely adjust and lock the steel wire laterally, preventing measurement errors caused by poor tooling accuracy. Therefore, auxiliary steel wires can be set on both sides of the furnace. After aligning the steel wires with a total station or laser theodolite, only one person is needed to complete the measurement. The auxiliary steel wires can achieve an accuracy of 0.2mm relative to the center steel wire, thus meeting the standard requirement that the lateral center offset of the rollers should not exceed 0.5mm. Attached Figure Description
[0026] Figure 1 This is the front view of the cable hanging bracket of this utility model;
[0027] Figure 2 This is a side view of the cable hanging bracket of this utility model;
[0028] Figure 3 This is a schematic diagram of the structure of the hanging guide wheel assembly of this utility model;
[0029] Figure 4 yes Figure 2 Enlarged view of point A in the middle;
[0030] In the diagram: 1. Rectangular tube column; 2. Rectangular tube sleeve; 3. Hanging guide wheel assembly; 4. First channel steel; 5. Column channel steel; 6. Second channel steel; 7. Foot pad; 8. Third channel steel; 9. First supporting angle steel; 10. Second supporting angle steel; 11. Round steel; 12. Third supporting angle steel; 13. Fourth supporting angle steel; 31. Hex socket head cap screw; 32. First nut; 33. V-groove bearing; 34. Positioning sleeve; 35. Second nut. Detailed Implementation
[0031] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.
[0032] The wire hanging device for assembling the mechanical frame of the furnace bottom provided in this embodiment mainly includes a wire hanging frame and a wire hanging guide wheel assembly 3 set on the wire hanging frame.
[0033] like Figure 1 , Figure 2 As shown, the cable tray includes an upper component and a lower component.
[0034] The upper component includes a rectangular tube column 1, a rectangular tube sleeve 2, a third supporting angle steel 12, and a fourth supporting angle steel 13. The rectangular tube column 1 is mounted on the first channel steel 4 and is located at the center of the inner side of the first channel steel 4. The rectangular tube sleeve 2 is mounted on the rectangular tube column 1. The third supporting angle steel 12 is inclined, with one end connected to the rectangular tube column 1 and the other end connected to the inner side of the first channel steel 4. The fourth supporting angle steel 13 is inclined, with one end connected to the rectangular tube column 1 and the other end connected to the third channel steel 8.
[0035] In this embodiment, the rectangular tube sleeve 2 can be moved up and down to adjust its height from the rectangular tube column 1.
[0036] In this embodiment, there are two fourth supporting angle steels 13, which are respectively set at both ends of the rectangular tube column 1.
[0037] The lower component is cuboid in shape and includes a first support frame and a second support frame. In this embodiment, there are two of each of the first and second support frames.
[0038] like Figure 1 As shown, the first support frame includes a first channel steel 4, a column channel steel 5, a second channel steel 6, a pad 7, and a first support angle steel 9. On the first support frame, there are two first channel steels 4 and two column channel steels 5. The two first channel steels 4 are respectively set on the inner side of the upper and lower ends of the two column channel steels 5. The second channel steel 6 is set between the two column channel steels 5. The pad 7 is set at the bottom end of the column channel steel 5. The first support angle steels 9 are beveled at both ends, and there are three of them. The first support angle steels 9 are located at the lower end of the second channel steel 6 and are set at an angle between the two column channel steels 5. The multiple first support angle steels 9 are connected in a V-shape.
[0039] like Figure 2 As shown, the second support frame includes a third channel steel 8 and a second support angle steel 10. There are two third channel steels 8 on the second support frame, located on the inner side of the upper and lower ends of the column channel steel 5, respectively. The two ends of the third channel steel 8 located at the upper end of the column channel steel 5 are connected to the first channel steel 4. There are three second support angle steels 10 with oblique cuts at both ends. The second support angle steels 10 are located between the two third channel steels 8 and are inclinedly set on the two column channel steels 5. The multiple second support angle steels 10 are connected in a V-shape.
[0040] In this embodiment, round steel bars 11 are provided on both the column channel steel 5 and the rectangular tube column 1, and there are multiple round steel bars 11.
[0041] like Figures 1-4 As shown, the hanging guide wheel assembly 3 is mounted on the rectangular tube sleeve 2.
[0042] like Figure 3As shown, the wire guide wheel assembly 3 includes an internal hexagon screw 31, a first nut 32, a V-groove bearing 33, a positioning sleeve 34, and a second nut 35. The first nut 32 is mounted on the internal hexagon screw 31. The V-groove bearing 33, the positioning sleeve 34, and the second nut 35 are sequentially mounted on one end of the internal hexagon screw 31. The V-groove bearing 33 has two through holes to facilitate the passage of steel wire. The positioning sleeve 34 is mounted on one end of the V-groove bearing 33, and the second nut 35 is mounted on the side end of the positioning sleeve 34.
[0043] In this embodiment, the size of the steel wire is between 0.8 and 2 mm.
[0044] The parameter settings for the allowable deviations of the stepping mechanical equipment before it enters the site are shown in Table 1 below.
[0045] Table 1. Allowable Deviation Parameters for Pre-Arrival Acceptance of Stepping Machinery Equipment
[0046]
[0047] The working principle or usage process of this utility model is as follows: After adopting the device of this application, first draw the center line of the furnace bottom machinery in the length direction (50-70m), and then draw parallel steel wires on both sides of the furnace bottom machinery based on this. Use a total station or laser theodolite to measure and align the wires. The distance error between the center line and the center line in the entire length direction should be within 0.5mm.
[0048] In this embodiment, based on the instrument's accuracy, the device of this application can achieve an accuracy of 0.2 mm.
[0049] This invention can precisely adjust and lock the steel wire laterally, preventing measurement errors caused by poor tooling precision. Compared with the prior art which requires multiple people to cooperate in measurement, this invention only requires one person to complete the measurement, thus improving measurement efficiency. The invention also avoids wear on the steel wire by setting a guide wheel structure.
[0050] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A wire-hanging device for assembling a mechanical frame at the furnace bottom, characterized in that: The device includes a wire hanging frame, which comprises an upper component and a lower component. The upper component is provided with a wire hanging guide wheel assembly (3), and the lower component includes two first support frames and two second support frames. The center line is measured by the cooperation of the wire hanging guide wheel assembly (3) and the lower component to ensure symmetry on both sides.
2. The hanging device for assembling the mechanical frame of the furnace bottom according to claim 1, characterized in that: The first support frame includes a first channel steel (4), a column channel steel (5), a second channel steel (6), a pad (7), and a first support angle steel (9); there are two first channel steels (4) and two column channel steels (5); the two first channel steels (4) are respectively set on the inner side of the upper and lower ends of the two column channel steels (5), the second channel steel (6) is set between the two column channel steels (5), the pad (7) is set at the bottom end of the column channel steel (5), and the first support angle steel (9) is set between the two column channel steels (5).
3. The hanging device for assembling the mechanical frame of the furnace bottom according to claim 2, characterized in that: The first supporting angle steel (9) is obliquely cut at both ends, and there are multiple of them. They are obliquely set between the two column channel steels (5), and the multiple first supporting angle steels (9) are connected in a V-shape.
4. The hanging device for assembling the mechanical frame of the furnace bottom according to claim 1, characterized in that: The second support frame includes a third channel steel (8) and a second support angle steel (10); there are two third channel steels (8), which are located on the inner side of the upper and lower ends of the column channel steel (5), respectively. The second support angle steel (10) is located between the two third channel steels (8) and is connected to the column channel steel (5).
5. The hanging device for assembling the mechanical frame of the furnace bottom according to claim 4, characterized in that: The third channel steel (8) is connected to the first channel steel (4) at both ends.
6. The hanging device for assembling the mechanical frame of the furnace bottom according to claim 4, characterized in that: The second supporting angle steel (10) is beveled at both ends, and there are multiple of them. They are inclinedly set on the two column channel steels (5), and the multiple second supporting angle steels (10) are connected in a V-shape.
7. The hanging device for assembling the mechanical frame of the furnace bottom according to claim 1, characterized in that: The upper component includes a rectangular tube column (1), a rectangular tube sleeve (2), a third supporting angle steel (12), and a fourth supporting angle steel (13); the rectangular tube column (1) is mounted on the first channel steel (4); the rectangular tube sleeve (2) is mounted on the rectangular tube column (1); the third supporting angle steel (12) is inclined, with one end connected to the rectangular tube column (1) and the other end connected to the first channel steel (4); the fourth supporting angle steel (13) is inclined, with one end connected to the rectangular tube column (1) and the other end connected to the third channel steel (8).
8. The hanging device for assembling the mechanical frame of the furnace bottom according to claim 1, characterized in that: The hanging guide wheel assembly (3) includes an internal hexagon screw (31), a first nut (32), a V-groove bearing (33), a positioning sleeve (34), and a second nut (35); the first nut (32) is set on the internal hexagon screw (31), and the V-groove bearing (33), the positioning sleeve (34), and the second nut (35) are sequentially provided at one end of the internal hexagon screw (31).
9. The hanging device for assembling the mechanical frame of the furnace bottom according to claim 1, characterized in that: Round steel (11) is provided on both the column channel steel (5) and the rectangular tube column (1).