A special tool for quick replacement of sintering operation zone belt roller

Abstract

The utility model belongs to sintering operation equipment maintenance technical field relates to a kind of special tool of sintering operation area belt carrier roller quick replacement, first adjusting nut and second adjusting nut are respectively threadedly connected in the both ends of bidirectional screw, upper scissor mechanism and lower scissor mechanism are respectively arranged in the upper and lower ends of bidirectional screw, the two scissor lower ends of upper scissor mechanism and the two scissor upper ends of lower scissor mechanism are respectively connected on first adjusting nut and second adjusting nut, the two scissor upper ends of upper scissor mechanism and the two scissor lower ends of lower scissor mechanism are respectively slidably connected in upper sliding groove block and lower sliding groove block by sliding block, the lower sliding groove block is embedded in base, support head is installed in the top of the upper sliding groove block, adjusting handle is installed in the end of the bidirectional screw.The utility model design scientific and reasonable, with the advantages of labour saving, safe and reliable, improve work efficiency, easily realized.

Description

Technical Field

[0001] This utility model belongs to the field of sintering equipment maintenance technology, and relates to a special tool, particularly a special tool for quick replacement of belt rollers in sintering operation area. Background Technology

[0002] In sintering operations in industries such as steel and metallurgy, belt conveyor systems are the core equipment for material transport, operating under harsh conditions of high temperature, high dust, and high corrosion. As a key supporting component of the belt conveyor system, idlers must continuously withstand material impact, material adhesion and scaling, and chemical corrosion, resulting in a failure rate far higher than under normal operating conditions. Regular replacement and maintenance are necessary to ensure the normal operation of the conveyor system.

[0003] Currently, the industry mainly uses traditional manual methods to replace idler rollers in the sintering operation area. This method has the following significant defects and shortcomings: 1. High manpower requirements: Each replacement operation requires 3-4 people to work together. One person needs to lift the belt directly with their back to make room for the replacement of the idler roller, while the other 2-3 people are responsible for disassembling the old idler roller and installing the new idler roller. The labor cost is high. 2. Significant safety hazards: Manual carrying of belts can easily lead to lumbar muscle injuries for operators. In addition, temporary blocks such as bricks and wooden stakes are often used to support the belts during the operation. These blocks are prone to breaking off, which may cause accidents such as crushing or bumping injuries to operators. 3. Low operating efficiency: Due to the manual operation method and safety risk control, a single roller replacement takes 30-40 minutes. Frequent shutdowns for replacement will seriously affect the continuity of sintering production and reduce overall production efficiency.

[0004] Therefore, developing a special tool for replacing idler rollers that can reduce manpower requirements, eliminate safety hazards, and improve replacement efficiency has become a key requirement for solving the maintenance problems of belt conveyor systems in sintering operation areas. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a special tool for quick replacement of belt rollers in the sintering operation area that has a scientific and reasonable structural design, saves manpower and effort, is safe and reliable, improves work efficiency, and is easy to implement.

[0006] The technical problem solved by this utility model is achieved through the following technical solution: A special tool for quick replacement of belt idlers in a sintering operation area is characterized by comprising a base, a bidirectional screw, an upper scissor fork structure, a lower scissor fork structure, a first adjusting nut, a second adjusting nut, an upper sliding groove block, a lower sliding groove block, a support head, and an adjusting handle. The first adjusting nut and the second adjusting nut are threadedly connected to both ends of the bidirectional screw. An upper scissor fork mechanism and a lower scissor fork mechanism are respectively provided at the upper and lower ends of the bidirectional screw. The lower ends of the two scissor forks of the upper scissor fork mechanism and the upper ends of the two scissor forks of the lower scissor fork mechanism are respectively connected to the first adjusting nut and the second adjusting nut. The upper ends of the two scissor forks of the upper scissor fork mechanism and the lower ends of the two scissor forks of the lower scissor fork mechanism are slidably connected to the upper sliding groove block and the lower sliding groove block via sliders. The lower sliding groove block is embedded in the base. A support head is installed on the top of the upper sliding groove block. An adjusting handle is installed at the end of the bidirectional screw.

[0007] Furthermore, it also includes a limiting cap, which is installed at the other end of the bidirectional screw.

[0008] Moreover, both the upper and lower sliding blocks are blocks with grooves on their end faces, and two sliders are slidably installed in the grooves, with the sliders fixed to the ends of the scissor fork.

[0009] Moreover, the support head has an arc-shaped structure that adapts to the curvature of the lower surface of the belt.

[0010] Furthermore, the base has a structure with a mounting groove at the bottom.

[0011] Furthermore, it also includes auxiliary installation mechanisms, which are symmetrically installed at both ends of the base. The auxiliary installation mechanisms include a mounting plate, an outer sleeve, an inner insert post, a mounting head, a clamping plate, and a clamping screw. A mounting plate is welded to one end of the outer sleeve, and the mounting plate is connected to the side of the base by screws. An inner insert post that extends and retracts inside the outer sleeve is provided inside the outer sleeve. A mounting head is welded to the end of the inner insert post. The mounting head has an inverted U-shaped structure. A clamping screw is threaded to the outside of the mounting head, and a clamping plate placed inside the mounting head is rotatably installed on the clamping screw.

[0012] The advantages and beneficial effects of this utility model are as follows: 1. This sintering operation area has a special tool for quick replacement of belt idlers. When using it, place the tool at the bottom of the idler to be replaced, and adjust the handle by hand. Under the action of the scissor fork, the belt is lifted up, avoiding the problems of labor-intensive, unsafe, and inefficient replacement caused by manually lifting the belt in the existing technology.

[0013] 2. The special tool for quick replacement of belt idlers in this sintering operation area has an arc-shaped support head that matches the arc of the lower surface of the belt, thus avoiding stress concentration and damage to the belt.

[0014] 3. This sintering operation area belt idler replacement tool, through the setting of an auxiliary installation mechanism, facilitates the installation of this utility model. When there is an idler mounting frame in the middle of the lower part of the belt to be replaced, this utility model can be installed on the idler mounting frame through the mounting groove set on the base; otherwise, it can be mounted on the frame on both sides of the belt conveyor frame through this auxiliary installation mechanism to achieve the purpose of replacing idlers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0016] Figure Labels 1-Limit cap, 2-First adjusting nut, 3-Upper sliding block, 4-Sliding groove, 5-Upper scissor structure, 6-Slider, 7-Support head, 8-Double-actuated screw, 9-Second adjusting nut, 10-Lower scissor structure, 11-Base, 12-Adjusting handle, 13-Tightening screw, 14-Tightening plate, 15-Mounting head, 16-Inner insert post, 17-Outer sleeve, 18-Mounting plate. Detailed Implementation

[0017] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.

[0018] A special tool for quick replacement of belt idlers in a sintering operation area is characterized by comprising a base 11, a bidirectional screw 8, an upper scissor fork structure 5, a lower scissor fork structure 10, a first adjusting nut 2, a second adjusting nut 9, an upper sliding groove block 3, a lower sliding groove block, a support head 7, and an adjusting handle 12. The first adjusting nut and the second adjusting nut are threadedly connected to both ends of the bidirectional screw. An upper scissor fork mechanism and a lower scissor fork mechanism are respectively provided at the upper and lower ends of the bidirectional screw. The lower ends of the two scissor forks of the upper scissor fork mechanism and the upper ends of the two scissor forks of the lower scissor fork mechanism are respectively connected to the first adjusting nut and the second adjusting nut. The upper ends of the two scissor forks of the upper scissor fork mechanism and the lower ends of the two scissor forks of the lower scissor fork mechanism are slidably connected to the upper sliding groove block and the lower sliding groove block via sliders. The lower sliding groove block is embedded in the base. A support head is installed on the top of the upper sliding groove block. An adjusting handle is installed at the end of the bidirectional screw.

[0019] To prevent the adjusting nut (the first adjusting nut in this embodiment) located on the outside from coming off, this utility model designs a limiting cap 1, which is installed at the other end of the bidirectional screw.

[0020] Both the upper and lower sliding blocks are blocks with sliding grooves 4 on their end faces. Two sliders 6 are slidably installed in the sliding grooves and are fixed to the ends of the scissor fork.

[0021] The support head has an arc-shaped structure that adapts to the curvature of the lower surface of the belt, thus avoiding stress concentration that could damage the belt.

[0022] This utility model provides two installation methods: one is installation via a base, and the other is installation via an auxiliary installation mechanism.

[0023] In Example 1, the base has a structure with a mounting groove on the bottom. A protective pad is placed inside the mounting groove to increase the friction between the base and the mounting bracket, ensuring stable installation.

[0024] In Example 2, auxiliary installation mechanisms are symmetrically installed at both ends of the base. The auxiliary installation mechanisms include an installation plate 18, an outer sleeve 17, an inner insert post 16, an installation head 15, a top clamping plate 14, and a top clamping screw 13. An installation plate is welded to one end of the outer sleeve, and the installation plate is connected to the side of the base by screws. An inner insert post that extends and retracts inside the outer sleeve is provided. The outer sleeve and the inner insert post are limited by a limiting pin. An installation head is welded to the end of the inner insert post. The installation head is an inverted U-shaped structure. A top clamping screw is threaded to the outside of the installation head. A top clamping plate placed inside the installation head is rotatably installed on the top clamping screw.

[0025] When in use, place the two present inventions in the center of the bottom of the belt and on both sides of the replacement roller, so that the support point is less than 50mm away from the roller, and each support head is supported on the lower part of the belt. Pull out the inner inserts on both sides, insert the mounting head into the frame, and tighten it with the top plate; Then, manually crank the adjusting handles on both tools simultaneously. The first and second adjusting nuts move in opposite directions, raising the support head and thus lifting the belt. Each rotation of the adjusting handle raises the belt by 1.2mm, allowing for fine-tuning until the idler roller is completely unloaded. After the belt is lifted 5-10mm, observe the change in belt tension. Then continue lifting until the gap between the idler and the belt reaches 30mm (use a feeler gauge to check the gap). Ensure that the idler is unloaded before you can replace the idler.

[0026] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A special tool for quick replacement of belt idlers in sintering operation area, characterized in that: The device includes a base, a bidirectional screw, an upper scissor mechanism, a lower scissor mechanism, a first adjusting nut, a second adjusting nut, an upper sliding block, a lower sliding block, a support head, and an adjusting handle. The first adjusting nut and the second adjusting nut are threaded to both ends of the bidirectional screw. An upper scissor mechanism and a lower scissor mechanism are respectively provided at the upper and lower ends of the bidirectional screw. The lower ends of the two scissor forks of the upper scissor mechanism and the upper ends of the two scissor forks of the lower scissor mechanism are respectively connected to the first adjusting nut and the second adjusting nut. The upper ends of the two scissor forks of the upper scissor mechanism and the lower ends of the two scissor forks of the lower scissor mechanism are slidably connected to the upper sliding block and the lower sliding block via sliders. The lower sliding block is embedded in the base. A support head is installed on the top of the upper sliding block. An adjusting handle is installed at the end of the bidirectional screw.

2. The special tool for quick replacement of belt idlers in sintering operation area according to claim 1, characterized in that: It also includes a limit cap, which is installed at the other end of the bidirectional screw.

3. A special tool for quick replacement of belt idlers in sintering operation area according to claim 1, characterized in that: Both the upper and lower sliding blocks are blocks with sliding grooves on their end faces. Two sliders are slidably installed in the sliding grooves and are fixed to the ends of the scissor fork.

4. A special tool for quick replacement of belt idlers in sintering operation area according to claim 1, characterized in that: The support head has an arc-shaped structure that is adapted to the curvature of the lower surface of the belt.

5. A special tool for quick replacement of belt idlers in sintering operation area according to claim 1, characterized in that: The base has a mounting groove at the bottom.

6. A special tool for quick replacement of belt idlers in sintering operation area according to claim 1, characterized in that: It also includes auxiliary installation mechanisms, which are symmetrically installed at both ends of the base. The auxiliary installation mechanisms include a mounting plate, an outer sleeve, an inner insert post, a mounting head, a clamping plate, and a clamping screw. A mounting plate is welded to one end of the outer sleeve, and the mounting plate is connected to the side of the base by screws. An inner insert post that extends and retracts inside the outer sleeve is provided. A mounting head is welded to the end of the inner insert post. The mounting head is an inverted U-shaped structure. A clamping screw is threaded to the outside of the mounting head. A clamping plate placed inside the mounting head is rotatably installed on the clamping screw.

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