Chain bucket conveyor for die forging chain

Abstract

The invention discloses a chain bucket conveyor for die forging chains, and belongs to the technical field of conveyors. The die forging machine comprises a machine body, a conveying track, a power device, a plurality of hoppers connected in series and two die forging chain groups, wherein the die forging chain group is formed by connecting a plurality of die forging chain units in series, each die forging chain unit comprises two die forging chain sheets which are oppositely arranged, each die forging chain sheet comprises a middle part and two joint end parts which respectively extend from the upper surface and the lower surface of the middle part to two ends, and thickness difference exists between the joint end parts and the middle part; the accommodating part is used for accommodating the end part of the joint of the next die forging chain sheet; the end parts of the joints of the die forging chain sheets are connected with the opposite die forging chain sheets through pin shafts, and the middle parts are used for mounting support chain wheels. The technical problems that in the prior art, a chain bucket conveyor is low in strength and poor in bearing capacity under the high-temperature and high-load environment, and a supporting chain wheel is prone to abrasion and damage are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of hopper conveyors, and in particular relates to a die forged chain bucket conveyor. Background Art

[0002] The chain bucket conveyor is a large-scale material conveying equipment. In the power industry and other industries, it is mainly used to convey high-temperature material residues. Most of the existing chain bucket conveyors convey materials through plate chains on both sides of the bucket, such as Chinese patent CN201694612U. There are some significant technical problems with this type of chain bucket conveyor with plate chain conveying. It is more obvious that since the plate chain is usually a flat plate structure made by forging, during the traction process, its main stress-bearing part is at the junction of the chain and the chain. Under the premise that the length and thickness of the single-piece plate chain are certain and no additional cost is added, the bearing capacity of the plate chain conveying structure is obviously limited; moreover, since it usually operates in a high-temperature environment and is affected by heat radiation, when the weight of the conveyed material is large or used for a long time, the plate chain junction is prone to deformation, breakage, etc., resulting in damage to the chain bucket conveyor or failure to operate normally.

[0003] Compared with plate chain, die-forged chain has much higher strength than plate chain due to its own manufacturing process advantages, and is more suitable for high-load and high-traction usage scenarios. However, the structural design of existing die-forged chains cannot match chain bucket conveyors, especially when the specifications and deadweight are similar to those of plate chains, and it is impossible to achieve both high load capacity and economic efficiency. For many companies that currently use chain bucket conveyors, if there is a need for technical transformation, there are very limited means to increase the load capacity of existing chain bucket conveyors. Summary of the invention

[0004] The details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0005] The present invention proposes a die-forged chain bucket conveyor, which solves the technical problems of low strength, poor bearing capacity, and easy wear and damage of the chain bucket conveyor in the prior art under high temperature and high load environments. It has the characteristics of high strength, strong bearing capacity, low influence of heat radiation, and long service life of the chain bucket conveyor under high temperature and high load environments.

[0006] The invention discloses a die forged chain bucket conveyor, comprising:

[0007] Body;

[0008] The conveying track includes a horizontal conveying section and a lifting conveying section;

[0009] A power device, installed at one end of the machine body, for providing traction power;

[0010] A plurality of hoppers connected in series are installed on the conveying track;

[0011] Two die forging chain groups are connected to the power device and are respectively arranged on the left and right sides of the plurality of hoppers; the die forging chain group is composed of a plurality of die forging chain units connected in series, and each of the die forging chain units includes:

[0012] Two die-forged chain plates arranged opposite to each other, each of the die-forged chain plates comprising a middle portion, and two joint ends extending from the upper and lower surfaces of the middle portion to both ends, respectively, and a thickness difference between the joint ends and the middle portion to form a receiving portion for accommodating the joint end of the latter die-forged chain plate;

[0013] A first pin hole is provided at the joint end of the die-forged chain piece, and is connected with the die-forged chain piece arranged oppositely via a pin shaft to form the die-forged chain unit;

[0014] A second pin hole is arranged in the middle of the die-forged chain plate for installing a supporting sprocket, and windows are arranged on both sides of the second pin hole.

[0015] In some embodiments, the hollow window in the middle portion of the die-forged link extends from the second pin hole portion to the junction with the end portion of the joint.

[0016] In some embodiments, the junction between the middle portion of the die-forged link and the end portion of the joint has a smooth inclined transition.

[0017] In some embodiments, a reinforcing protrusion is provided around the first pin hole at the end of the die-forged link joint.

[0018] In some embodiments, when the material load capacity of the chain bucket conveyor reaches more than 300t per hour and the traction force of a single die-forged chain plate is more than 200KN, the thickness ratio of the end of the die-forged chain plate joint to the middle part is 1:2 to 1.1:2, and the length ratio of the joint end at either end to the middle part is 2.5:4 to 3:4.

[0019] In some embodiments, when the material load capacity conveyed by the chain bucket conveyor reaches more than 300t per hour and the traction force of a single die-forged chain plate is more than 200KN, the aperture of the first pin hole is d, the width of the joint end is a, and the thickness of the joint end is t, wherein d:a=1:3.5~1:4.2, t:d=1:2.4~1:2.6, and the relative die-forged chain plate spacing of the die-forged chain unit is 65mm~75mm.

[0020] In some embodiments, when the material load capacity of the chain bucket conveyor reaches more than 300t per hour and the traction force of a single die-forged chain plate is more than 200KN, the tensile strength of the die-forged chain plate is 300KN, the surface hardness is 50HRC~60HRC, and the die-forged chain plate is forged with high-strength alloy carburizing steel to improve the strength and durability of the die-forged chain group and ensure the long-term reliable operation of the chain bucket conveyor in a high-intensity working environment.

[0021] In some embodiments, a connecting plate is provided in the middle portion of the die forging chain piece for connecting with the hopper; the connecting plate is made of a heat-resistant material to reduce the effect of heat radiation on the die forging chain set.

[0022] In some embodiments, a rotating shaft is passed through the second pin hole in the middle part of the relatively arranged die-forged chain plate, and a supporting sprocket is sleeved on the rotating shaft to reduce the friction between the die-forged chain group and the conveyor frame.

[0023] In some embodiments, the support sprocket is provided with a plurality of bearings to improve the running smoothness of the support sprocket and reduce the energy loss caused by friction during the conveying process.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention discloses a die-forged chain bucket conveyor. Through the special structural design of the die-forged chain unit, it can not only provide sufficient traction and reliable structural strength under high load conditions; at the same time, the two die-forged chain groups are respectively arranged on the left and right sides of the hopper, which can effectively prevent the heat radiation of the hot slag to the die-forged chain group and increase its service life; the present invention adopts a die-forged chain, which can save the connecting rod compared to the plate chain, reduce the weight and lower the cost; the present invention greatly improves the overall performance of the die-forged chain bucket conveyor, especially in high-intensity working environments. The die-forged chain bucket conveyor of the present invention has excellent performance in harsh environments such as high load, high traction and high temperature, and has the advantages of high strength, long life, wear resistance and high temperature resistance. It is widely used in heavy industrial fields such as mining, metallurgy, and building materials, and meets the stringent requirements of large-scale material conveying equipment for strength and durability, and greatly improves the reliability and operation efficiency of the conveying equipment.

[0026] 2. The die-forged chain unit of the present invention adopts a structural design of the middle part and the joint end with different thicknesses, which ensures that the force distribution of the die-forged chain is more uniform during the load transmission process, avoiding local stress concentration, thereby improving the service life of the die-forged chain and the operating stability of the conveyor. Especially under the conditions of high load and high traction, the structural design of the die-forged chain group can ensure that it can work for a long time without breaking or deformation.

[0027] 3. The material of the die forging chain in the present invention is high-strength alloy carburizing steel. The surface hardness of the die forging chain is improved by carburizing treatment (50HRC-60HRC), which not only enhances the wear resistance of the die forging chain, but also greatly improves its tensile strength (above 300KN). The combination of this material selection and heat treatment process ensures the long-term reliable operation of the chain bucket conveyor in extreme working environments, such as high temperature, high wear or high stress scenarios, and reduces the maintenance frequency and cost of the equipment.

[0028] 4. The die-forged chains in the present invention are connected by pins, so that the die-forged chain units can move freely and flexibly. Combined with the heat-resistant material of the connecting plate, the conveyor has stronger heat resistance in a high-temperature working environment, avoiding the problem of material performance degradation due to thermal expansion or high temperature, thereby extending the service life of the equipment.

[0029] 5. In terms of overall structural design, the present invention connects the die forging chain units to each other by overlapping, which not only improves the connection strength between the die forging chains, but also ensures the stability and continuity of the hopper during the transmission process, avoids the shutdown caused by loosening or breaking of the die forging chain during the transportation process, and significantly improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 A schematic diagram of the structure of a die-forged chain bucket conveyor provided by an embodiment of the present invention;

[0032] Figure 2 A front view of a die forging chain unit provided in an embodiment of the present invention;

[0033] Figure 3 A top view of a die forging chain unit provided in an embodiment of the present invention;

[0034] Figure 4 AA cross-sectional view provided by an embodiment of the present invention;

[0035] In the above figures: 1- hopper; 2- die-forged chain group; 21- die-forged chain unit; 211- die-forged chain plate; 2111- middle part; 2112- joint end; 2113- first pin hole; 2114- empty window; 2115- second pin hole; 212- pin shaft; 213- rotating shaft; 214- sprocket wheel; 215- bearing; 3- connecting plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0037] Obviously, the drawings described below are only some examples or embodiments of the present invention. For those of ordinary skill in the art, the present invention can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for those of ordinary skill in the art related to the contents disclosed in the present invention, some changes in design, manufacturing or production based on the technical contents disclosed in the present invention are just conventional technical means, and should not be understood as the contents disclosed in the present invention are insufficient.

[0038] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present invention may be combined with other embodiments without conflict.

[0039] Unless otherwise defined, the technical terms or scientific terms involved in the present invention shall have the usual meanings understood by persons with ordinary skills in the technical field to which the present invention belongs. The words "one", "a", "a", "the" and the like involved in the present invention do not indicate a quantity limitation and may indicate the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in the present invention are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device including a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in the present invention are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in the present invention refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" may indicate: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects in the front and back relation are in an "or" relationship. The terms "first", "second", "third" and the like involved in the present invention are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0040] The embodiment of the present invention provides a die forged chain bucket conveyor, referring to Figure 1-Figure 4As shown, a die-forged chain bucket conveyor comprises a machine body, a conveying track is arranged in the machine body, the conveying track comprises a horizontal conveying section and a lifting conveying section, a plurality of hoppers 1 are placed on the conveying track, and the hoppers 1 are connected in series with each other; a power device is arranged at one end of the machine body; two die-forged chain groups 2 are respectively arranged on the left and right sides of the plurality of hoppers 1, and are connected to the power device; the die-forged chain group 2 is composed of a plurality of die-forged chain units 21 connected in series, each die-forged chain unit 21 comprises two die-forged chain pieces 211 arranged opposite to each other, each die-forged chain piece 211 comprises a middle portion 2111, and a The upper and lower surfaces of the die-forged chain 21 are provided with two joint ends 2112 extending to both ends respectively, and there is a thickness difference between the joint end 2112 and the middle part 2111, so as to form a receiving part for placing the joint end 2112 of the next die-forged chain piece 211; the joint end 2112 of the die-forged chain piece 211 is provided with a first pin hole 2113, and is connected with the die-forged chain piece 211 arranged oppositely through the pin shaft 212 to form the die-forged chain unit 21; the middle part 2111 of the die-forged chain piece 211 is provided with a second pin hole 2115, which is used to install the supporting sprocket 214, and the two sides of the second pin hole 2115 are provided with empty windows 2114. The present invention utilizes the die-forged chain group 2 to pull the hopper 1 to move along the conveying track, and the power device provides driving force. The die-forged chain pieces 211 are connected by the pin shaft 212 to realize the flexible movement of the chain. By providing a support sprocket 214 in the middle portion 2111 of the die-forged chain plate 211, the friction between the die-forged chain group 2 and the conveying track is reduced, thereby improving the conveying efficiency and reducing energy loss. In addition, the accommodating portion designed for the die-forged chain plate 211 enables the chain plates to be firmly connected and maintain high-strength traction. Compared with traditional conveying equipment, the die-forged chain bucket conveyor has higher traction and stability, especially when conveying materials with large loads. The design of the support sprocket 214 in the middle portion 2111 effectively reduces friction loss and extends the service life of the equipment. By adopting the die-forging forming technology, the accuracy and strength of the die-forged chain plate 211 are greatly improved, ensuring the reliable operation of the system under high load conditions.

[0041] In some embodiments, the thickness of the joint end 2112 is half the thickness of the middle portion 2111, thereby ensuring that after the joint ends 2112 of the wrought chain plates 211 of adjacent wrought chain units 21 are connected by the pin 212, the thickness of the entire wrought chain group 2 remains consistent, so as to ensure that the wrought chain group 2 is uniformly stressed as a whole. This can avoid excessive stress concentration at the connection site, reduce the risk of wrought chain breakage or premature wear, and thus improve the reliability and durability of the wrought chain. This design ensures uniform stress on the entire wrought chain group 2 under high loads by maintaining the same thickness as the lap joint 2112 and the middle portion 2111, reduces the risk of wrought chain breakage during use, and improves the operational reliability of the conveyor. At the same time, this structural design can also extend the service life of the wrought chain, reduce maintenance costs and downtime.

[0042] Furthermore, the hollow window 2114 in the middle portion 2111 of the die-forged chain piece 211 extends from the second pin hole 2115 to the junction with the joint end 2112. By designing the hollow window 2114 extending to the joint end 2112 in the middle portion 2111 of the die-forged chain piece 211, the weight of the die-forged chain piece 211 is reduced without affecting the strength of the die-forged chain piece 211. The design of the hollow window 2114 can also effectively reduce the manufacturing cost of the die-forged chain piece 211, and reduce air resistance during the operation of the die-forged chain piece 211, thereby improving overall work efficiency. The design of the hollow window 2114 not only reduces the weight of the die-forged chain piece 211, making the entire conveying system lighter and more flexible, but also reduces material consumption and improves production efficiency. Furthermore, the reduced air resistance causes the equipment to consume less energy during long-term operation.

[0043] Furthermore, the junction between the middle part 2111 of the die-forged chain piece 211 and the joint end 2112 is smoothly inclined and transitioned. After the die-forged chain units 21 are connected by the pin 212, the thickness of the overlapping part is close to that of the middle part 2111, but the junction between the middle part 2111 and the joint end 2112 of a single die-forged chain piece 211 becomes the thinnest position in the entire die-forged chain group 2. Therefore, through the smooth transition structure, the strength of the junction between the joint end 2112 and the middle part 2111 of the die-forged chain piece 211 can be greatly enhanced, thereby ensuring the overall strength of the die-forged chain group 2 and extending the service life of the die-forged chain. The smooth transition design effectively enhances the fatigue resistance of the die-forged chain piece 211 and reduces the risk of damage caused by stress concentration. In addition, this design can improve the manufacturing process accuracy of the die-forged chain piece 211, thereby improving the stability and safety of the overall structure.

[0044] Furthermore, the first pin hole 2113 of the joint end 2112 of the die-forged chain piece 211 is circumferentially provided with a reinforcing protrusion. The first pin hole 2113 is a key part of the connection of the die-forged chain piece 211, and bears a large amount of traction and stress. By adding reinforcing protrusions circumferentially to the pin hole 2113, the stress concentration around the pin hole 2113 can be effectively dispersed, and the die-forged chain piece 211 is prevented from breaking or wearing due to excessive local force. The reinforcing protrusion not only improves the strength of the die-forged chain piece 211, but also ensures the firmness of the connection. This reinforcing protrusion design improves the tensile strength and wear resistance of the die-forged chain piece 211, and effectively extends the service life of the die-forged chain piece 211. Especially in long-term high-load operation, the damage to the die-forged chain piece 211 caused by fatigue of the pin hole 2113 can be significantly reduced. In addition, the reinforcing protrusion can also improve the stability of the connection of the die-forged chain piece 211 and reduce the maintenance frequency of the equipment.

[0045] Implementation scenario 1:

[0046] Working conditions: The material load capacity of the die-forged chain hopper conveyor per hour is 300t, the required traction force of a single die-forged chain piece 211 is more than 200KN, the traction force of the die-forged chain group 2 is more than 400KN, so the traction force of the two-row die-forged chain group 2 is more than 800KN;

[0047] Diameter d of the first pin hole 2113: 22 mm;

[0048] Width a of the joint end 2112: 88 mm (corresponding d:a ratio is 1:4);

[0049] The thickness t of the joint end 2112 is 8.8 mm (corresponding to a t:d ratio of 1:2.5);

[0050] Spacing of die-forged chain plates 211: 68 mm;

[0051] Under light load conditions, this embodiment maintains the ratio of d:a=1:4 and the ratio of t:d=1:2.5 by designing the diameter of the first pin hole 2113 to be 22mm and setting the width and thickness of the joint end 2112 to be 88mm and 8.8mm respectively; this design reduces the amount of material used and reduces the manufacturing and operating costs while ensuring that the die-forged chain has sufficient strength; at the same time, the relative spacing of the die-forged chain pieces 211 is designed to be 68mm, further optimizing the load distribution of the conveyor. This embodiment reduces the overall cost of the conveyor by reducing the weight and material of the die-forged chain pieces 211, while maintaining high operating efficiency and structural strength under light load conditions; at the same time, the conveyor exhibits good stability and energy-saving effects in light load applications.

[0052] Implementation scenario 2:

[0053] Working conditions: The material load capacity of the die-forged chain hopper conveyor per hour is 500t, the required traction force of a single die-forged chain piece 211 is more than 300KN, the traction force of the die-forged chain group 2 is more than 600KN, so the traction force of the two-row die-forged chain group 2 is more than 1200KN;

[0054] Diameter d of the first pin hole 2113: 30 mm;

[0055] Width a of the joint end 2112: 105 mm (corresponding d:a ratio is 1:3.5);

[0056] The thickness t of the joint end 2112 is 12 mm (corresponding to a t:d ratio of 1:2.5);

[0057] Spacing of die-forged chain plates 211: 70 mm;

[0058] Under high load conditions, this embodiment effectively improves the load bearing capacity of the die forging chain by designing the diameter of the first pin hole 2113 to be 30 mm and maintaining an appropriate d:a ratio of 1:3.5; the width a of the joint end 2112 is designed to be 105 mm and the thickness t of the joint end 2112 is designed to be 12 mm, which enhances the overall strength of the die forging chain, so that the traction force of the two-row die forging chain group can reach more than 1200KN, and up to 500t of material can be transported per hour. At the same time, the spacing of the die forging chain pieces 211 is designed to be 70 mm, which further improves the structural strength of the conveyor and reduces the wear of the die forging chain. This embodiment effectively improves the tensile strength and durability by enhancing the geometric structure of the die forging chain piece 211; by optimizing the size design of the die forging chain, the stress concentration phenomenon during the operation of the conveyor is reduced, ensuring the stability and safety of the conveyor during long-term operation.

[0059] Implementation scenario 3:

[0060] Working conditions: The material load capacity of the die-forged chain hopper conveyor per hour is 700t, the required traction force of a single die-forged chain piece 211 is more than 400KN, the traction force of the die-forged chain group 2 is more than 800KN, so the traction force of the two-row die-forged chain group 2 is more than 1600KN;

[0061] Diameter d of the first pin hole 2113: 38 mm;

[0062] Width a of the joint end 2112: 159 mm (corresponding d:a ratio is 1:4.2);

[0063] The thickness t of the joint end 2112 is 15.8 mm (corresponding to a t:d ratio of 1:2.4);

[0064] Spacing of die-forged chain plates 211: 75 mm;

[0065] This embodiment is designed for extreme load conditions. The design of the diameter of the first pin hole 2113 d=38mm, the width of the joint end 2112 a=159mm and the thickness of the joint end 2112 t=15.8mm enables the traction force of the two-row die-forged chain group to reach more than 1600KN, and can transport up to 700t of material per hour. The maximized ratio of d:a=1:4.2 and the ratio of t:d=1:2.4 ensure the extremely high tensile strength of the die-forged chain. At the same time, the spacing of the die-forged chain plates 211 is designed to be 75mm, which further enhances the overall stability and fatigue resistance of the conveyor. This embodiment can provide excellent fatigue resistance and stress concentration resistance under extreme load conditions, and is suitable for long-term operation in extreme environments. Its structural strength and durability design ensure that the conveyor has good safety and reliability under high loads and has a longer service life under harsh conditions.

[0066] From the above implementation scenarios 1 to 3, it can be seen that the die-forged chain bucket conveyor has excellent load adaptability, stress dispersion and fatigue resistance through reasonable geometric design and material optimization, and can operate efficiently from light load to ultra-high load scenarios. Its design effectively avoids stress concentration, improves the durability and safety of the conveyor, and achieves cost savings and energy saving effects in light load scenarios. Under high load conditions, the conveyor demonstrates excellent traction transmission and long-term stability, and is widely used in mining, metallurgy and other industries, with strong market competitiveness and application flexibility.

[0067] Furthermore, when the material load capacity of the bucket chain conveyor reaches more than 300t per hour, the traction force of a single die-forged chain piece 211 is more than 200KN. The tensile strength of a single die-forged chain piece 211 is 300KN, the surface hardness is 50HRC-60HRC, and the single die-forged chain piece 211 is forged with high-strength alloy carburized steel to improve the strength and durability of the die-forged chain group 2, ensuring long-term reliable operation in a high-intensity working environment. By selecting materials with high tensile strength and high surface hardness to manufacture the die-forged chain piece 211, the bearing capacity of the die-forged chain piece 211 under high loads and harsh environments is enhanced, especially when the surface hardness reaches 50HRC-60HRC, the wear resistance and impact resistance of the die-forged chain are significantly improved. The strength design of a single die-forged chain piece 211 meets the traction requirements of more than 300KN, ensuring the stable operation of the conveyor under long-term and high-intensity operations. The die-forged chain unit 21 made of high-strength alloy carburized steel effectively improves the tensile strength and durability of the die-forged chain, reduces the risk of wear and breakage of the die-forged chain piece 211 under high load, and extends the service life of the chain bucket conveyor. The high hardness of the surface of the die-forged chain piece 211 also makes it more durable in high-intensity friction and impact environments, reducing maintenance costs and downtime.

[0068] Furthermore, the middle part 2111 of the die-forged chain piece 211 is connected to the plate 3, and the plate 3 is used to connect the die-forged chain group 2 to the hopper 1. The connecting plate 3 is made of heat-resistant material to reduce the impact of heat radiation on the die-forged chain group 2, thereby enhancing the service life of the chain bucket conveyor in a high temperature environment. In a high temperature environment, since heat radiation will have an adverse effect on the mechanical properties of the die-forged chain group 2, the connecting plate 3 uses a heat-resistant material, such as heat-resistant steel or ceramic-based material, which can effectively reduce the impact of heat radiation on the die-forged chain group 2. The connecting plate 3, by connecting to the hopper 1, not only ensures the stable transmission of the hopper 1, but also plays a role in heat insulation protection, preventing the die-forged chain piece 211 from deformation or performance degradation due to high temperature, thereby extending the service life of the equipment. This design ensures the stability and durability of the die-forged chain piece 211 under high temperature conditions by providing additional heat insulation protection for the die-forged chain group 2 in a high temperature environment, thereby extending the overall service life of the conveyor. At the same time, the use of the connecting plate 3 also enhances the connection strength between the hopper 1 and the die forging chain set 2, preventing the hopper 1 from shaking or falling off during the conveying process, thereby improving the safety and reliability of the conveyor.

[0069] In some embodiments, the overlap mode between the die forging chain units 21 can be adjusted according to the type of the die forging chain set 2. In addition to the connection by the pin 212, hinge, lock or welding can also be used. The shape of the overlap part 2112 can also be adjusted according to specific requirements, such as using an arc, wedge and other structures to improve the connection strength and impact resistance.

[0070] In some embodiments, the thickness of the overlapped portion 2112 can be adjusted according to the load requirements of the specific application scenario. For example, under higher loads, the thickness of the overlapped portion 2112 can be appropriately increased. The fatigue resistance of the overlapped portion 2112 can also be enhanced by changing the material selection and heat treatment process to meet different usage requirements.

[0071] Furthermore, a rotating shaft 213 is provided at the second pin hole 2115 of the middle part 2111 of the relatively arranged die-forged chain piece 211, and a supporting sprocket 214 is sleeved on the rotating shaft 213. The supporting sprocket 214 can reduce the friction between the die-forged chain group 2 and the conveyor frame, thereby improving the conveying efficiency and the smoothness of operation. The supporting sprocket 214 is installed on the rotating shaft 213, and can produce rolling contact with the conveyor frame during the operation of the die-forged chain group 2, thereby significantly reducing the friction. In this way, the operation of the die-forged chain group 2 is smoother, and the wear between the die-forged chain group 2 and the conveyor frame is also reduced, thereby extending the service life of the conveyor. In addition, the rolling action of the supporting sprocket 214 can help maintain the balance of the die-forged chain group 2, making the conveyor more stable during the material transmission process and improving the conveying efficiency. The use of the supporting sprocket 214 greatly reduces the friction between the die-forged chain group 2 and the conveyor frame, making the operation of the conveyor smoother, effectively reducing energy loss, and improving the conveying efficiency. At the same time, the wear caused by friction is reduced, the service life of the die forging chain set 2 and the conveyor frame is extended, and the maintenance cost is reduced. At the same time, the support sprocket wheels 214 are arranged on both sides of the hopper 1, which can also effectively prevent the heat radiation of the hot slag to the support sprocket wheels 214, greatly increasing the service life of the support sprocket wheels 214.

[0072] In some embodiments, the die-forged chain plate 211 adopts an integrated design. This integrated design provides higher structural strength and reduces the risk of loose connections between components. By forming the die-forged chain plate 211 in one piece, the risk of looseness caused by traditional splicing or welding methods is avoided. The one-piece die-forged chain plate 211 can provide higher strength and fatigue resistance. This design helps the die-forged chain plate 211 to maintain stable structural integrity under long-term, high-load operating conditions, and avoid loose connections or fatigue failures caused by frequent use. The one-piece design enhances the overall strength and durability of the die-forged chain plate 211, avoids the risk of loose components, and thus extends the service life of the conveyor. At the same time, this design simplifies the manufacturing and assembly process, reduces the need for post-maintenance and overhaul, reduces maintenance costs, and improves the reliability of the equipment.

[0073] Furthermore, a plurality of bearings 215 are provided on the sprocket wheel 214 to improve the running stability of the sprocket wheel 214 and reduce the energy loss caused by friction during the conveying process. The sprocket wheel 214 can maintain a stable rolling state during the conveying process by providing a plurality of bearings 215 inside or on the surface thereof. The rolling action of the bearings 215 greatly reduces the friction between the sprocket wheel 214 and the die forging chain set 2, making the overall operation of the conveyor smoother and reducing the heat and energy loss caused by friction. The arrangement of the bearings 215 can also ensure that the sprocket wheel 214 still maintains stable operation under high load, thereby improving the efficiency and life of the conveyor. By providing a plurality of bearings 215 on the sprocket wheel 214, the friction during the conveying process is further reduced, thereby improving the conveying efficiency. At the same time, the use of the bearings 215 also greatly reduces the wear of the sprocket wheel 214 and the die forging chain set 2, prolonging the service life of both, and reducing energy loss and operating costs.

[0074] In some embodiments, the number and type of bearings 215 on the carrier sprocket 214 can be adjusted according to specific operating conditions. For example, in the case of high load or high speed operation, a higher performance bearing material, such as ceramic or composite materials, can be selected. The diameter of the carrier sprocket 214 and the size of the bearings 215 can also be adjusted according to the load requirements of the conveyor to further optimize its rolling performance and load-bearing capacity.

[0075] In some embodiments, the connecting plate 3 is provided with a plurality of threaded holes for threaded connection with the hopper 1, providing a stable connection method and ensuring the positioning stability of the hopper 1 during the conveying process. The threaded holes provided on the connecting plate 3 are used to firmly fix the hopper 1 on the die forging chain group 2 by bolts. The threaded connection method not only ensures that the hopper 1 will not shake or deviate during the conveying process, but also facilitates the subsequent disassembly and replacement operations. By using a plurality of threaded holes, the force on the hopper 1 can be evenly distributed, further improving the reliability of the connection and ensuring the stability of the hopper 1 during long-term operation. The threaded connection method provides a more stable connection, ensuring the stability of the hopper 1 during the conveying process, and avoiding material leakage or decreased conveying efficiency due to shaking of the hopper 1. The design of multiple threaded holes also improves the strength and stability of the connection, extends the service life of the equipment, and reduces maintenance costs.

[0076] In some embodiments, the threaded connection method can be adjusted according to the size and weight of the hopper 1, for example, bolts or reinforcing plates of different specifications are used to enhance the connection strength. In some special scenarios, the connecting plate 3 can also be welded or snap-on to meet different installation requirements. At the same time, the number and position of the threaded holes can also be adjusted according to the size and stress of the hopper 1.

[0077] The invention is compared with the existing plate chain bucket conveyor, and the relevant parameter indicators are shown in the following table:

[0078] thickness Deadweight cost Maximum traction Running time at maximum traction Plate chain 8mm 3.2kg 35 Yuan 150kN 30min Die forged chain 12mm 4.5kg 48 yuan 400kN 24h

[0079] It is not difficult to see from the above table that, using the die-forged chain structure created by the present invention, the maximum traction force of a single die-forged chain piece 211 is 400KN, and the maximum traction force of the die-forged chain group 2 is 800KN. Therefore, the maximum traction force of the two-row die-forged chain group 2 is 1600KN, and the load capacity of the chain bucket conveyor using the die-forged chain structure is greatly improved when the size, specification and manufacturing cost are not much different from the existing plate chain. In the ultra-maximum load endurance test, the conveyor using the plate chain structure, under the state of traction exceeding the maximum traction force of 200kN, continuously operated for 30 minutes, the plate chain piece joint part was significantly deformed, and continued use may cause safety hazards; while the conveyor using the die-forged chain structure, under the state of traction exceeding the maximum traction force of 450kN, continued to run for 24 hours, the overall structure of the die-forged chain, especially the joint end, did not change in shape and size, and even under the extreme state of 550kN, it can continue to work for 6-8 hours without deformation or chain breakage. Therefore, the die-forged chain structure can simply replace the plate chain structure of the existing equipment without changing the structure of other chain bucket conveyors, thereby greatly improving the working efficiency of the conveyor and keeping the cost under control.

[0080] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A die forged chain bucket conveyor, characterized in that: include: Body; The conveying track includes a horizontal conveying section and a lifting conveying section; A power device, installed at one end of the machine body, for providing traction power; A plurality of hoppers connected in series are installed on the conveying track; Two die forging chain groups are connected to the power device and are respectively arranged on the left and right sides of the plurality of hoppers; the die forging chain group is composed of a plurality of die forging chain units connected in series, and each of the die forging chain units includes: Two die-forged chain plates arranged opposite to each other, each of the die-forged chain plates comprising a middle portion, and two joint ends extending from the upper and lower surfaces of the middle portion to both ends, respectively, and a thickness difference between the joint ends and the middle portion to form a receiving portion for accommodating the joint end of the latter die-forged chain plate; A first pin hole is provided at the joint end of the die-forged chain piece, and is connected with the die-forged chain piece arranged oppositely via a pin shaft to form the die-forged chain unit; A second pin hole is arranged in the middle of the die-forged chain plate for installing a supporting sprocket, and windows are arranged on both sides of the second pin hole.

2. The die forged chain bucket conveyor according to claim 1, characterized in that: The hollow window in the middle portion of the die-forged link extends from the second pin hole portion to the junction with the end portion of the joint.

3. The die forged chain bucket conveyor according to claim 1, characterized in that: The junction between the middle portion of the die-forged chain plate and the end portion of the joint has a smooth inclined transition.

4. The die forged chain bucket conveyor according to claim 1, characterized in that: A reinforcing protrusion is arranged in the circumference of the first pin hole at the end of the die-forged link joint.

5. The die forged chain bucket conveyor according to claim 1, characterized in that: When the material load capacity of the chain bucket conveyor reaches more than 300t per hour and the traction force of a single die-forged chain plate is more than 200KN, the thickness ratio of the end of the die-forged chain plate joint to the middle part is 1:2 to 1.1:2, and the length ratio of the joint end at either end to the middle part is 2.5:4 to 3:

4.

6. The die forged chain bucket conveyor according to claim 1, characterized in that: When the material load capacity of the chain bucket conveyor reaches more than 300t per hour and the traction force of a single die-forged chain plate is more than 200KN, the aperture of the first pin hole is d, the width of the joint end is a, and the thickness of the joint end is t, wherein d:a=1:3.5~1:4.2, t:d=1:2.4~1:2.6, and the relative die-forged chain plate spacing of the die-forged chain unit is 65mm~75mm.

7. The die forged chain bucket conveyor according to claim 1, characterized in that: When the material load capacity of the chain bucket conveyor reaches more than 300t per hour and the traction force of a single die-forged chain piece is more than 200KN, the tensile strength of the die-forged chain piece is 300KN, the surface hardness is 50HRC~60HRC, and the die-forged chain piece is forged with high-strength alloy carburizing steel to improve the strength and durability of the die-forged chain group and ensure the long-term reliable operation of the chain bucket conveyor in a high-intensity working environment.

8. The die forged chain bucket conveyor according to claim 1, characterized in that: A connecting plate is provided in the middle of the die forging chain piece for connecting with the hopper; the connecting plate is made of heat-resistant material for reducing the influence of heat radiation on the die forging chain set.

9. The die forged chain bucket conveyor according to claim 1, characterized in that: A rotating shaft is passed through the second pin hole in the middle part of the relatively arranged die-forged chain piece, and a supporting sprocket is sleeved on the rotating shaft to reduce the friction between the die-forged chain set and the conveying track.

10. The die forged chain bucket conveyor according to claim 1, characterized in that: The support sprocket is provided with a plurality of bearings to improve the running stability of the support sprocket and reduce the energy loss caused by friction during the conveying process.

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