Reciprocating limestone material piling and taking machine and material rake structure thereof

By designing an anisotropic rake structure and reinforcing ribs in the limestone stockpile reclaimer, the stress concentration problem of the rake structure under wet and sticky material conditions was solved, the life of the rake teeth was extended, and the material reclaiming efficiency and stability were improved.

CN223983183UActive Publication Date: 2026-03-10TIANJIN ZHENXING CEMENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In the case of wet and sticky materials, the material rake structure of the limestone stacking and reclaiming device is prone to stress concentration, which can lead to damage and affect production efficiency and cost.

Method used

Design a material rake structure in which the first type of rake teeth and the second type of rake teeth are arranged in opposite directions, so that some rake teeth are in a non-contact state with the limestone pile, and the strength of the rake teeth is enhanced by reinforcing ribs to ensure that the rake teeth reduce unnecessary wear during the material handling process.

Benefits of technology

It extends the service life of the rake teeth, improves material handling efficiency and uniformity, reduces equipment maintenance costs, and ensures the stability and efficiency of the material handling process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a reciprocating type limestone material piling and taking machine and a material rake structure thereof, and the material rake structure comprises a material rake main body which is connected with a walking mechanism of the reciprocating type limestone material piling and taking machine; the first type of rake teeth are fixedly connected with the material rake main body; the second type of rake teeth are fixedly connected with the material rake main body; the first type of rake teeth and the second type of rake teeth are arranged in different directions, so that at least part of rake teeth in the first type of rake teeth and the second type of rake teeth are in a non-contact state with a limestone material pile. By means of the technical scheme, when the reciprocating type limestone material piling and taking machine reciprocates, due to the fact that part of the rake teeth are in the non-contact state with the limestone material pile all the time, the stress of the material rake structure can be reduced, unnecessary abrasion of the material rake structure can be reduced, and the service life of the material rake structure can be prolonged.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of limestone stacking and processing, and particularly relates to a reciprocating limestone stack material taking machine and a material rake structure thereof. BACKGROUND

[0002] Limestone is an important raw material in many industrial productions, for example, in cement production, the stability of its composition has a key influence on the quality of cement. Through homogenization treatment, the chemical composition, particle size and other indicators of limestone can be made more uniform, reducing product quality problems caused by fluctuations in raw material composition, and improving the stability of the production process and the pass rate of products. The homogenized limestone will be stacked in the warehouse, and when it is needed, a limestone taking equipment will be used to take the stacked limestone. However, when the humidity of the limestone stack is high, the material rake structure of the limestone stack taking device is prone to generate a large stress, causing the material rake to be damaged, affecting the production efficiency, and increasing the use cost.

[0003] Chinese patent document CN201810890578.7 discloses a limestone pre-homogenization stacking and taking machine, comprising: a base, a stand column and a conveyor belt; a group of stand columns are connected to the top of the base in a shaft manner; an active cross beam, two groups of first connecting rods and the top of a fixed cross beam are fixedly connected together to a group of conveyor belts; a group of hydraulic cylinders are hingedly connected to the middle part of the stand column through the middle part of the second connecting rod; a group of drag plates are slidingly connected to the left front end face of the active cross beam; a group of transmission belts are wound around the outer sides of the driven pulley and the driving pulley; a group of gears are fixedly connected to the shaft of the sliding motor in a coaxial manner; and the hydraulic cylinders are connected to the external hydraulic system through an oil circuit. The technical scheme controls the position of the bucket wheel to take the material, without moving the whole machine body, thereby reducing the cost.

[0004] The above technical scheme proposes a technical scheme of adjusting the position of the bucket wheel through the hydraulic cylinder, but it does not solve the stress concentration problem of the material rake structure under the wet and sticky material working condition. Utility model content

[0005] The embodiment of the present application provides a reciprocating limestone stack material taking machine and a material rake structure thereof, which improves the stability of the material rake structure to at least partially solve the above technical problems.

[0006] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a material rake structure is provided for a reciprocating limestone stack material taking machine, comprising:

[0007] Optionally,

[0008] a material rake main body, connected with a walking mechanism of the reciprocating limestone stack material taking machine;

[0009] a first type of rake tooth, fixedly connected with the material rake main body;

[0010] The second type of rake teeth are fixedly connected to the main body of the rake.

[0011] The first type of rake teeth and the second type of rake teeth are arranged in opposite directions so that at least some of the first type of rake teeth and the second type of rake teeth are in a non-contact state with the limestone pile.

[0012] Optionally,

[0013] The number of rake teeth in the first type of rake teeth is less than the number of rake teeth in the second type of rake teeth.

[0014] Optionally,

[0015] The rake teeth in the first type of rake teeth are parallel to each other;

[0016] In the second type of rake teeth, several rake teeth are parallel to each other.

[0017] Optionally,

[0018] Both the first type of rake teeth and the second type of rake teeth have regular polygonal and / or circular cross sections.

[0019] Optionally,

[0020] The rake structure also includes:

[0021] The first type of reinforcing rib is connected to the first type of rake teeth;

[0022] The second type of reinforcing rib is connected to the second type of rake teeth.

[0023] Optionally,

[0024] The rake structure also includes:

[0025] The third type of reinforcing rib is fixedly connected to the main body of the rake and is disposed between the first type of reinforcing rib and the second type of reinforcing rib.

[0026] Optionally,

[0027] The number of the first type of reinforcing ribs is the same as the number of rake teeth in the first type of rake teeth, and the reinforcing ribs in the first type of reinforcing ribs are respectively connected to the rake teeth in the first type of rake teeth.

[0028] Optionally,

[0029] The second type of reinforcing rib includes at least one reinforcing rib, and the rake teeth in the second type of rake teeth are respectively connected to the second type of reinforcing rib.

[0030] Optionally,

[0031] The second type of reinforcing rib is perpendicular to the second type of rake teeth.

[0032] According to a second aspect of this application, a reciprocating limestone stockpile-reclaimer is disclosed, comprising:

[0033] The rake structure described in the first aspect of this application;

[0034] The walking mechanism is connected to the rake structure;

[0035] A power mechanism, connected to the walking mechanism, is used to drive the walking mechanism;

[0036] The walking mechanism includes:

[0037] The main body of the mechanism is connected to the material rake structure;

[0038] A sliding component is connected to the mechanism body to enable the mechanism body to slide synchronously with the rake structure.

[0039] In the rake structure of this embodiment, the rake body is connected to the traveling mechanism of the reciprocating limestone stockpile reclaimer; a first type of rake tooth is fixedly connected to the rake body; a second type of rake tooth is fixedly connected to the rake body; the first and second types of rake teeth are arranged in opposite directions so that at least some of the first and second types of rake teeth are in a non-contact state with the limestone stockpile. Through the above technical solution, when the reciprocating limestone stockpile reclaimer performs reciprocating motion, because some of the rake teeth are always in a non-contact state with the limestone stockpile, the force on the rake can be reduced, unnecessary wear on the rake teeth can be reduced, and the service life of the rake teeth can be extended. At the same time, this arrangement allows the rake teeth to have a better turning effect on the stone stockpile, which helps to improve the material handling efficiency and obtain stone more evenly.

[0040] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0043] Figure 1 This is a schematic diagram of the overall structure of the rake structure provided in the exemplary embodiments of this disclosure;

[0044] Figure 2This is a top view of the rake structure provided in an exemplary embodiment of this disclosure;

[0045] Figure 3 This is a schematic diagram of the structure of the reciprocating limestone stockpile reclaimer provided in an exemplary embodiment of this disclosure;

[0046] Figure 4 This is a schematic diagram of the reciprocating limestone stacker-reclaimer provided in an exemplary embodiment of this disclosure under another state.

[0047] Explanation of reference numerals in the attached figures:

[0048] 100. Rake structure;

[0049] 110. Main body of the rake;

[0050] 121. First type of rake teeth;

[0051] 122. Second type of rake teeth;

[0052] 131. First-class reinforcing rib; 132. Second-class reinforcing rib; 133. Third-class reinforcing rib;

[0053] 200. Reciprocating limestone stacker-reclaimer;

[0054] 210. Walking mechanism; 211. Mechanism body; 212. Sliding component; Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0056] This application provides a reciprocating limestone stacker-reclaimer 200 and its rake structure 100. Please refer to [link to relevant documentation]. Figures 1 to 4 .

[0057] According to the first aspect of this application, referring to Figure 1 and Figure 2 A material rake structure 100 is disclosed for use in a reciprocating limestone stacker-reclaimer 200. The material rake structure 100 includes: a material rake body 110, a first type of rake tooth 121, and a second type of rake tooth 122.

[0058] The rake body 110 is connected to the walking mechanism 210 of the reciprocating limestone stacker 200; the first type of rake teeth 121 is fixedly connected to the rake body 110; the second type of rake teeth 122 is fixedly connected to the rake body 110; the first type of rake teeth 121 and the second type of rake teeth 122 are arranged in opposite directions so that at least some of the first type of rake teeth 121 and the second type of rake teeth 122 are in a non-contact state with the limestone stack.

[0059] The first type of rake teeth 121 and the second type of rake teeth 122 are arranged in opposite directions, so that during material handling, some rake teeth will never contact the limestone pile. Figure 3 and 4 As shown, when the reciprocating limestone stockpile reclaimer 200 is in reciprocating motion, because some of the rake teeth are in a non-contact state with the limestone stockpile, the stress on the rake structure 100 can be reduced, unnecessary wear on the rake teeth can be reduced, and the service life of the rake teeth can be extended. At the same time, this setting allows the rake teeth to have a better turning effect on the stone stockpile, which helps to improve the material handling efficiency and obtain stone more evenly.

[0060] In some embodiments of this application, the number of rake teeth in the first type of rake teeth 121 is less than the number of rake teeth in the second type of rake teeth 122. By flexibly adjusting the number of the first type of rake teeth 121 and the second type of rake teeth 122 according to the limestone pile, for loose limestone piles, reducing the number of the first type of rake teeth 121 and increasing the number of the second type of rake teeth 122 can make the reciprocating limestone pile reclaimer 200 more adaptable to the material characteristics during the material reclaiming process, improving the targeting and effectiveness of the material reclaiming operation and optimizing the material reclaiming process.

[0061] In some embodiments of this application, the rake teeth in the first type of rake teeth 121 are parallel to each other and are evenly distributed, and the rake teeth in the second type of rake teeth 122 are also parallel to each other and are evenly distributed. The parallel arrangement of the rake teeth ensures that each rake tooth is subjected to uniform force during material handling, avoiding premature damage to individual rake teeth due to uneven force. This not only extends the overall service life of the rake teeth but also makes the rake more stable when inserting into the limestone pile for material handling, further improving material handling efficiency and ensuring the stability of the material handling operation.

[0062] In some embodiments of this application, the rake structure 100 has a first type of rake tooth 121 and a second type of rake tooth 122, both of which have regular polygonal and / or circular cross-sections. Both the first type of rake tooth 121 and the second type of rake tooth 122 are made of steel. The regular polygonal cross-section rake teeth enhance the gripping force, ensuring the efficiency of stone gripping during the material handling process; the circular cross-section rake teeth reduce the friction with the stone, reduce energy consumption, make the material handling machine run more smoothly during operation, reduce power loss, and improve energy utilization efficiency.

[0063] In some embodiments of this application, the rake structure 100 further includes: a first type of reinforcing rib 131 connected to the first type of rake tooth 121; and a second type of reinforcing rib 132 connected to the second type of rake tooth 122. The first type of reinforcing rib 131 and the second type of reinforcing rib 132 are respectively connected to the corresponding rake teeth, which significantly enhances the strength of the rake teeth. This allows the rake teeth to withstand greater forces when picking up limestone materials with high moisture content, preventing deformation or damage due to excessive force, and improving the reliability and durability of the rake structure 100.

[0064] In some embodiments of this application, the rake structure 100 further includes a third type of reinforcing rib 133, which is fixedly connected to the rake body 110 and disposed between the first type of reinforcing rib 131 and the second type of reinforcing rib 132. The third type of reinforcing rib 133 further strengthens the overall strength of the rake structure 100. In complex material handling environments, such as when limestone piles are unevenly distributed and there is significant resistance, it can ensure the stability of the overall rake structure, maintain normal material handling operations, and reduce the probability of failures caused by structural instability.

[0065] In some embodiments of this application, the number of first-type reinforcing ribs 131 is the same as the number of rake teeth in the first-type rake teeth 121, and the reinforcing ribs in the first-type reinforcing ribs 131 are connected to the rake teeth in the first-type rake teeth 121 respectively. The one-to-one connection method maximizes the reinforcing effect of the reinforcing ribs on the rake teeth, and each rake tooth can be fully supported and strengthened. During the material handling process, it is ensured that the strength of each rake tooth meets the working requirements, thereby improving the overall performance of the rake teeth.

[0066] The second type of reinforcing rib 132 includes at least one reinforcing rib, and the rake teeth in the second type of rake teeth 122 are connected to the second type of reinforcing rib 132. The connection of at least one reinforcing rib to multiple second type of rake teeth 122 can distribute force to each rake tooth. While ensuring the reinforcement effect, the reasonable design of the number of reinforcing ribs enhances the structural strength of the rake teeth while avoiding excessive increases in material costs and structural weight, thus achieving structural optimization. The second type of reinforcing rib 132 is perpendicular to the second type of rake teeth 122. This perpendicular connection method can better transmit force, allowing the reinforcing rib to more effectively resist bending forces when the rake teeth are under stress, enhancing the bending resistance of the rake teeth, and further improving the reliability and durability of the second type of rake teeth 122 in material handling operations.

[0067] According to the second aspect of this application, referring to Figure 3 and Figure 4 This application discloses a reciprocating limestone stacker-reclaimer 200, including: a rake structure 100 and a walking mechanism 210 according to the first aspect of this application.

[0068] The walking mechanism 210 is connected to the rake structure 100, and the power mechanism is connected to the walking mechanism 210 to drive it. The walking mechanism 210 includes: a mechanism body 211 connected to the rake structure 100; and a sliding component 212 connected to the mechanism body 211 to allow the mechanism body 211 and the rake structure 100 to slide synchronously. The specially designed rake structure 100 ensures efficient material handling. The walking mechanism 210 drives the rake structure 100 to move flexibly, enabling material handling of limestone piles at different locations. The power mechanism provides power to the walking mechanism 210, ensuring stable operation of the entire reclaimer. The mechanism body 211 in the walking mechanism 210 supports the rake structure 100, and the sliding component 212 allows the mechanism body 211 and the rake structure 100 to slide synchronously, ensuring the stability and accuracy of the rake during movement. All parts work together to meet the industrial production demand for efficient and stable acquisition of homogenized limestone raw materials. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0069] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0070] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0071] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A rake structure for a reciprocating limestone stock reclaimer, characterized in that, The utility model relates to a kind of material rake structure, comprising: Material rake main body, with the walking mechanism of the reciprocating limestone material pile taking machine is connected; First rake tooth, with the material rake main body fixed connection; Second rake tooth, with the material rake main body fixed connection; The first rake tooth and the second rake tooth are arranged in opposite directions, so that at least part of the first rake tooth and the second rake tooth is in non-contact state with limestone material pile.

2. The material rake structure according to claim 1, wherein, The number of rake teeth in the first rake tooth is less than the number of rake teeth in the second rake tooth.

3. The material rake structure according to claim 2, wherein, Several rake teeth in the first rake tooth are parallel to each other; Several rake teeth in the second rake tooth are parallel to each other.

4. The material rake structure according to claim 2, wherein, The first rake tooth and the second rake tooth are both regular polygons and / or circles in cross section.

5. The material rake structure according to any one of claims 1 to 4, further comprising: First reinforcing rib, connected with the first rake tooth; Second reinforcing rib, connected with the second rake tooth.

6. The material rake structure according to claim 5, further comprising: Third reinforcing rib, fixedly connected with the material rake main body, and arranged between the first reinforcing rib and the second reinforcing rib.

7. The material rake structure according to claim 5, wherein, The number of first reinforcing ribs is the same as the number of rake teeth in the first rake tooth, and each first reinforcing rib is connected with a rake tooth in the first rake tooth.

8. The material rake structure according to claim 7, wherein, The second reinforcing rib includes at least one reinforcing rib, and each rake tooth in the second rake tooth is connected with a reinforcing rib in the second reinforcing rib.

9. The material rake structure according to claim 8, wherein, The second reinforcing rib is perpendicular to the second rake tooth. The utility model relates to a kind of material rake structure, comprising: The material rake structure according to any one of claims 1 to 9; 10. A reciprocating limestone stock pile reclaimer characterized by, Walking mechanism, connected with the material rake structure; Power mechanism, connected with the walking mechanism, for driving the walking mechanism; The walking mechanism comprises: Mechanism body, connected with the material rake structure; Sliding assembly, connected with the mechanism body, to synchronize the sliding of the mechanism body and the material rake structure. ​ ​

Citation Information

Patent Citations

  • Stacker-reclaimer for limestone pre-homogenization

    CN108974969B