S-shaped multifunctional grid plate replacing tool
By designing an S-shaped multi-functional grate replacement tool, the problems of tool diversity and high temperature risk in grate replacement were solved, thereby improving the safety and efficiency of grate replacement.
Patent Information
- Application Number
- CN202520299037.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-24
AI Technical Summary
In the pellet production system, grate replacement requires multiple tools and cannot be completed independently, increasing the operational risks and workload of staff in high-temperature environments and affecting maintenance efficiency.
Design an S-shaped multi-functional grate replacement tool, including an S-bar, connecting rod, crossbar, striking part, and fixing part. Optimize the tool design to reduce tool diversity and improve operational safety and efficiency.
By introducing an S-shaped multi-functional grate replacement tool, the safety of the operation process is ensured, the replacement speed and maintenance efficiency are improved, and the need for multiple people to work together in high-temperature environments is reduced.
Smart Images

Figure CN223834436U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chain grate machines in pellet production systems, and in particular to an S-type multi-functional grate replacement tool. Background Technology
[0002] Chain grate machines play an indispensable role in pellet production systems, primarily responsible for drying and preheating ore pellets to ensure their quality and performance. A chain grate machine consists of 4880 grate plates and other heat-resistant components. The grate plates are the core component of the machine; these parts work together to dry and preheat the ore pellets, thus guaranteeing their final quality.
[0003] However, during the daily operation of the chain grate machine, grate plates frequently burn out. This requires maintenance workers to replace them in high-temperature environments of 500℃, carrying various tools (hammers, crowbars, hooks, etc.). This work usually requires multiple people working together, increasing the risk of burns to the workers. Especially during scheduled maintenance periods, due to the large number of grate plates requiring replacement, a significant number of maintenance personnel are needed to ensure the normal operation of the chain grate machine and the continuous production of the pelletizing system.
[0004] Addressing the issue that workers carry multiple tools and are unable to complete tasks independently, this invention optimizes tool design to reduce the diversity of required tools, or designs a multi-functional tool, enabling workers to complete tasks more safely and efficiently, while reducing their burden and effectively improving work efficiency. Utility Model Content
[0005] This utility model provides an S-shaped multi-functional grate replacement tool, which solves the problem that existing grate repair processes require the use of multiple repair tools, affecting repair efficiency.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] An S-shaped multi-functional grate replacement tool includes an S-bar, one end of which is connected to one end of a first connecting rod and one end of a second connecting rod, the other end of the first connecting rod is connected to a crossbar, both ends of the crossbar are connected to a striking part, the other end of the second connecting rod is connected to a fixing part, and the other end of the S-bar is connected to a lifting part.
[0008] Furthermore, the S-bar includes a first curved bar, a straight bar, and a second curved bar.
[0009] Furthermore, one end of the first crank is connected to the first connecting rod and the second connecting rod, the other end of the first crank is connected to one end of the straight rod, the other end of the straight rod is connected to the second crank, and the other end of the second crank is connected to the raised part.
[0010] Furthermore, the central angle corresponding to the first curved rod is greater than the central angle corresponding to the second curved rod.
[0011] Furthermore, the angle between the first link and the second link is α.
[0012] Furthermore, the range of α is 125° to 130°.
[0013] Furthermore, the raised portion is a cylindrical rod, and the diameter of the rod is smaller than the diameter of the second curved rod at the end connected to the raised portion.
[0014] The beneficial effects of this utility model are as follows:
[0015] When replacing the grate, the introduction of the S-type multi-functional grate replacement tool eliminates the need for multiple maintenance personnel to carry numerous tools on the grate bed, which reaches temperatures as high as 500°C. This not only ensures the safety of the operation but also significantly increases the replacement speed.
[0016] During scheduled maintenance, multiple maintenance personnel can use this tool simultaneously, greatly improving the overall efficiency of maintenance and allowing limited maintenance resources to be applied more efficiently to multiple maintenance projects. Attached Figure Description
[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Explanation of icon numbers:
[0020] 1. S-bar; 11. First curved bar; 12. Straight bar; 13. Second curved bar; 2. First connecting rod; 3. Second connecting rod; 4. Crossbar; 5. Striking part; 6. Fixing part; 7. Raised part. Detailed Implementation
[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0022] 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 embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the 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.
[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0026] This utility model provides a technical solution: an S-shaped multi-functional grate replacement tool, such as... Figure 1As shown, it includes an S-bar 1, one end of which is connected to one end of a first connecting rod 2 and one end of a second connecting rod 3. The angle between the first connecting rod 2 and the second connecting rod 3 is an obtuse angle α, with α ranging from 125° to 130°. The other end of the first connecting rod 2 is connected to a crossbar 4, and both ends of the crossbar 4 are connected to striking parts 5. The other end of the second connecting rod 3 is connected to a fixing part 6. The other end of the S-bar 1 is connected to a lifting part 7.
[0027] S-bar 1 includes a first curved bar 11, a straight bar 12, and a second curved bar 13; the central angle corresponding to the first curved bar 11 is greater than the central angle corresponding to the second curved bar 13; one end of the first curved bar 11 is connected to the first connecting rod 2 and the second connecting rod 3, the other end of the first curved bar 11 is connected to one end of the straight bar 12, the other end of the straight bar 12 is connected to the second curved bar 13, and the other end of the second curved bar 13 is connected to the raised part 7.
[0028] The raised part 7 is a cylindrical rod with a diameter smaller than that of the second curved rod 13 connected to the raised part 7.
[0029] Example 1
[0030] Steps for replacing a grate using an S-type multi-functional grate replacement tool:
[0031] After precise calculation, the row spacing between the two grates was determined to be 245mm, and an S-shaped multi-functional grate replacement tool was made.
[0032] After using a special tool for grate replacement during the replacement process, the front and rear grate plates are precisely fixed using the lifting part 7 and the fixing part 4;
[0033] M12 stainless steel bolts were cut and disassembled using electric welding equipment.
[0034] After disassembly, remove the replacement tool from the lifting part 7 and the fixing part 4, and then use the striking part 5 to strike the bolt's retaining block to separate it from the bolt;
[0035] After removing the clip, hold the crossbar 4 with one hand and use the lifting part 7 to hook up the old grate.
[0036] For the installation of new grates, the same method is used to hook and fix them. Then, the two grates are re-secured using the lifting part 7 and the fixing part 4, and the clips and M12 stainless steel bolts are installed. Finally, the bolts are welded using welding equipment to ensure construction quality and safety. This operation can be completed by two people while ensuring safety.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An S-shaped multi-functional grate replacement tool, characterized in that, It includes an S-bar (1), one end of which is connected to one end of a first connecting rod (2) and one end of a second connecting rod (3), the other end of the first connecting rod (2) is connected to a crossbar (4), both ends of the crossbar (4) are connected to a striking part (5), the other end of the second connecting rod (3) is connected to a fixing part (6), and the other end of the S-bar (1) is connected to a lifting part (7).
2. The S-type multi-functional grate replacement tool according to claim 1, characterized in that, The S-bar (1) includes a first curved bar (11), a straight bar (12), and a second curved bar (13).
3. The S-type multi-functional grate replacement tool according to claim 2, characterized in that, One end of the first curved rod (11) is connected to the first connecting rod (2) and the second connecting rod (3), the other end of the first curved rod (11) is connected to one end of the straight rod (12), the other end of the straight rod (12) is connected to the second curved rod (13), and the other end of the second curved rod (13) is connected to the raised part (7).
4. The S-type multi-functional grate replacement tool according to claim 2, characterized in that, The central angle corresponding to the first curved rod (11) is greater than the central angle corresponding to the second curved rod (13).
5. The S-type multi-functional grate replacement tool according to claim 1, characterized in that, The angle between the first link (2) and the second link (3) is α.
6. The S-type multi-functional grate replacement tool according to claim 5, characterized in that, The range of α is 125° to 130°.
7. The S-type multi-functional grate replacement tool according to claim 1, characterized in that, The raised part (7) is a cylindrical rod, and the diameter of the rod is smaller than the diameter of the second curved rod (13) connected to the raised part (7).