Middle trolley of stokehole tapping machine
By improving the structural design of the intermediate trolley of the opening machine and adopting technologies such as thickened steel plates and composite roller bearings, the problem of easy damage to the equipment in harsh environments has been solved, and the durability and ease of maintenance of the equipment have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HBIS LAOTING STEEL CO LTD
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional opening machines are prone to damage to the central trolley in harsh environments, with rapid wheel wear and severe side plate deformation, resulting in a short service life and difficulty in maintenance.
A trolley for a furnace front opening machine was designed. The hook seat is made of thickened steel plate, the side plates are reinforced by welded stiffeners, the wheels are connected by composite roller bearings, a stop hammer is provided to prevent the drill rod from being thrown out, and the hook positioning pin ensures accurate hook positioning.
It effectively prevents the trolley from drifting to the left or right, reduces wear, extends wheel life, has a simple structure, is easy to maintain and replace, and improves equipment reliability.
Smart Images
Figure CN224133099U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an intermediate trolley of a furnace front opening machine, belonging to the technical field of metallurgical equipment in the metallurgical industry. Background Technology
[0002] The taphole opener is a crucial piece of equipment in the blast furnace tapping area, its function being to drill an opening to allow molten iron to flow out. Currently, large blast furnaces have long taphole channels, requiring very long drill rods. To prevent the drill rods from swaying during rotation, a central trolley of the taphole opener is needed to support the drill rods, moving with them during the tapping process. The environment near the taphole is harsh, with high temperatures and heavy dust, making on-site equipment prone to damage. Traditional taphole opener central trolleys often suffer from rapid wheel wear, deformation of the upper part of the left and right side plates leading to excessive trolley clearance, and damaged trolley hooks that are difficult to replace. To address these issues, a new taphole opener central trolley has been designed. Utility Model Content
[0003] The purpose of this invention is to provide a trolley in the middle of a furnace opening machine that can effectively prevent the trolley from shifting to the left or right, avoid deformation of the side plates, reduce wear, extend wheel life, and solve the problems existing in the background art.
[0004] The technical solution of this utility model is:
[0005] A trolley for a furnace front opening machine includes wheels, an opening machine track beam, a left side plate, a right side plate, a hook seat, a hook, and hook fixing bolts. The hook is fixed to the hook seat by the hook fixing bolts and cooperates with the opening machine drill rod. The left side plate and the right side plate are symmetrically fixed on both sides of the hook seat. The left side plate and the right side plate are respectively provided with wheels that cooperate with the opening machine track beam.
[0006] The hook base is equipped with a stop hammer that cooperates with the drill rod of the opening machine.
[0007] The stop hammer is rotatably connected to the hook seat via a stop hammer pin.
[0008] The hook seat is also equipped with a hook positioning pin that cooperates with the hook.
[0009] The hook base is also equipped with a trolley stop in the middle.
[0010] The wheels are rotatably connected to the left and right side plates via composite roller bearings.
[0011] There are four wheels in total, two on the left side plate and two on the right side plate.
[0012] The left and right side plates are respectively welded with stiffening plates.
[0013] The beneficial effects of this utility model are: it can effectively prevent the trolley from deviating to the left or right, avoid deformation of the side plates, reduce wear, extend wheel life, and has a simple structure, accurate positioning, and is easy to replace and maintain. Attached Figure Description
[0014] Figure 1 This is a three-dimensional drawing of the present invention;
[0015] Figure 2 This is the front view of the present utility model;
[0016] Figure 3 This is a top view of the present invention;
[0017] Figure 4 This is the left view of the present invention;
[0018] In the diagram: 1. Wheel; 2. Lubricating oil connector; 3. Opening machine track beam; 4. Left side plate; 5. Right side plate; 6. Hook seat; 7. Hammer stop; 8. Hammer stop pin; 9. Hook; 10. Side wall connecting bolt; 11. Hook fixing bolt; 12. Trolley stop; 13. Hook positioning pin; 14. Drill rod; 15. Rib plate. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and examples.
[0020] See attached document Figure 1-4 A trolley for a furnace front opening machine includes wheels 1, an opening machine track beam 3, a left side plate 4, a right side plate 5, a hook seat 6, a hook 9, and hook fixing bolts 11. The hook 9 is fixed to the hook seat 6 by the hook fixing bolts 11. The hook 9 cooperates with the opening machine drill rod 14. The left side plate 4 and the right side plate 5 are symmetrically fixed on both sides of the hook seat 6. The left side plate 4 and the right side plate 5 are respectively provided with wheels 1 that cooperate with the opening machine track beam 3.
[0021] In this embodiment, refer to the appendix Figure 1-4 The left side plate 4 and the right side plate 5 are made of steel plates and are welded with two vertical stiffeners and one horizontal stiffener to increase their resistance to deformation.
[0022] There are two wheels 1 on each of the left side plate 4 and the right side plate 5. Each wheel 1 is rotatably connected to the left side plate 4 and the right side plate 5 through a composite roller bearing. A lubricating oil connector 2 with a protective cap is installed on the composite roller bearing to facilitate the use of a lubricating oil pump for oiling.
[0023] The hook seat 6 is welded from thickened steel plate, and the trolley stop 12 is welded to its upper part. Its function is that when the opening machine finishes opening, the baffle on the chain hits the trolley stop 12, causing the trolley in the middle of the opening machine to move backward.
[0024] Two hook positioning pins 13 are inserted into the machined holes of the hook seat 6 and welded to fix them. Their function is to position the hook 6 with double pins, so that the hook 9 can be accurately positioned and can withstand greater impact.
[0025] The hook 9 is used to support the drill rod 14, making it convenient for the installation and replacement of the drill rod 14. The hook fixing bolt 11 passes through the hook seat 6 and is connected to the hook 9 to prevent the hook 9 from slipping out and falling off.
[0026] The function of the stop hammer 7 is to hold down the drill rod 14 and prevent it from being thrown out during high-speed rotation. The hook seat 6 is designed so that the hook 9 is far from the stop hammer 7, so the hook 9 can be replaced directly without removing the stop hammer 7, which is convenient for maintenance. The stop hammer 7 has a hole on its upper part and is fixed with the stop hammer pin 8, which is convenient for disassembly and assembly.
Claims
1. A front opening furnace intermediate cart, characterized by: It includes wheels (1), a track beam (3) for the opening machine, a left side plate (4), a right side plate (5), a hook seat (6), a hook (9) and a hook fixing bolt (11). The hook (9) is fixed to the hook seat (6) by the hook fixing bolt (11). The hook (9) cooperates with the drill rod (14) of the opening machine. The left side plate (4) and the right side plate (5) are symmetrically fixed on both sides of the hook seat (6). The left side plate (4) and the right side plate (5) are respectively provided with wheels (1) that cooperate with the track beam (3) of the opening machine.
2. A front opening loader intermediate cart according to claim 1, wherein: The hook seat (6) is equipped with a stop hammer (7) that cooperates with the drill rod (14) of the opening machine.
3. A front-opening machine intermediate trolley according to claim 2, characterized in that: The stop hammer (7) is rotatably connected to the hook seat (6) via the stop hammer pin (8).
4. A front opening loader intermediate cart according to claim 1, wherein: The hook seat (6) is also provided with a hook positioning pin (13) that cooperates with the hook (9).
5. An opening machine intermediate carriage according to claim 1, characterized in that: The hook seat (6) is also provided with a trolley stop (12) in the middle.
6. An opening machine intermediate carriage according to claim 1, characterized in that: The wheel (1) is rotatably connected to the left side plate (4) and the right side plate (5) via a composite roller bearing.
7. An intermediate carriage for an opening and closing machine of a furnace front according to claim 6, characterized in that: There are four wheels (1) in total, two on the left side plate (4) and two on the right side plate (5).
8. An opening machine intermediate carriage according to claim 1, characterized in that: The left side plate (4) and the right side plate (5) are respectively welded with stiffening plates (15).