Gear driving structure for scraper conveying system and scraper conveying system

Abstract

The utility model provides a scraper conveying system and a gear driving structure for the scraper conveying system, the gear driving structure comprises a driving unit, the driving unit comprises two gear assemblies which are oppositely arranged and can synchronously move, each gear assembly comprises a gear seat and two gear pieces which are coaxially arranged, and the gear seat is provided with a gear shaft. The two gear pieces are symmetrically arranged on the two sides of the gear seat in the axial direction respectively and detachably connected with the gear seat. The conveying device solves the problems that in the prior art, when a conveying device with a scraper driven by a single chain wheel faces fine and large amount of mineral powder, shaking is large, the maintenance frequency is high, and gear replacement cost and difficulty are high.

Description

Technical Field

[0001] The utility model relates to the field of scraper conveying equipment manufacturing, in particular to a gear driving structure for a scraper conveying system and a scraper conveying system. Background Art

[0002] In the field of mineral processing, efficient material transportation is the key link to ensure smooth production. At present, scraper conveyors have been widely used in mineral transportation. Scraper conveyors usually fix scrapers on chains to form scraper chains, and use scraper chains as traction components to transport materials.

[0003] In the existing conveying device, the pulverized mineral powder is fine and large in quantity. Currently, a single sprocket drives a scraper to convey the mineral powder to the raw ore finished product silo. However, this method has many obvious disadvantages.

[0004] First, due to the single sprocket structure, there will be a large shake during the scraping process. This shake not only affects the stability of the conveying, but also may cause the material to spill, reducing the conveying efficiency. At the same time, the large shake will also have an adverse effect on other parts of the equipment, accelerating the wear and damage of the equipment.

[0005] Secondly, the maintenance frequency of the sprocket drive gear is high. The structure of the single sprocket makes it more concentrated during operation, which easily leads to wear and damage of the drive gear. Frequent maintenance not only increases production costs, but also affects production progress and reduces production efficiency.

[0006] Finally, the integrated design of the entire sprocket makes replacement costly and difficult. When a sprocket fails and needs to be replaced, it takes a lot of time and manpower to disassemble and install it. Moreover, the integrated sprocket is more expensive, which increases the equipment investment cost of the enterprise.

[0007] In summary, the existing single sprocket driven scraper conveying device has problems such as large shaking, high maintenance frequency, high replacement cost and difficulty when facing fine and large amounts of mineral powder. An improved conveying device is urgently needed to solve these problems, so as to improve the efficiency and stability of mineral transportation and reduce production costs. Utility Model Content

[0008] The purpose of the utility model is to provide a gear drive structure and a scraper conveying system for a scraper conveying system, so as to solve the problems in the prior art that a conveying device in which a single sprocket drives a scraper has large shaking, high maintenance frequency, and high cost and difficulty in gear replacement when facing fine and large amounts of mineral powder.

[0009] To achieve the above object of the present utility model, an embodiment of the present utility model provides a gear drive structure for a scraper conveyor system, which includes a drive unit. The drive unit includes two gear assemblies arranged oppositely and capable of synchronous movement. Each gear assembly includes a gear seat coaxially arranged and two gear discs. The two gear discs are symmetrically arranged on both sides of the gear seat in the axial direction and are detachably connected to the gear seat.

[0010] As a further improvement of the embodiment of the present utility model, the gear seat in each gear assembly has a first side close to the other gear assembly, and the distance between the two first sides is between 296 and 306 mm.

[0011] As a further improvement of the embodiment of the present utility model, the gear seat includes a gear seat body and an installation sleeve axially penetrating through the gear seat body along its central axis. The two gear discs are sleeved on the outer side wall of the installation sleeve and are respectively detachably connected to both sides of the gear seat body in the axial direction. The drive unit further includes a sprocket shaft, and both ends of the sprocket shaft are respectively penetrated through the two installation sleeves.

[0012] As a further improvement of the embodiment of the present utility model, the gear seat body and the installation sleeve are arranged as an integrally formed structure.

[0013] As a further improvement of the embodiment of the present utility model, each gear disc includes a gear body and a plurality of involute-type teeth with the same shape. The plurality of teeth are arranged at intervals along the outer circumference of the gear body and protrude radially from the outer circumference of the gear body and the gear seat body. The gear body is sleeved on the outer side of the installation sleeve.

[0014] As a further improvement of the embodiment of the present utility model, the tooth has a tooth end face and a first side face and a second side face connected to both sides of the tooth end face. The gear seat body has a diameter perpendicular to the tooth end face. A first included angle and a second included angle are respectively formed between the first side face and the second side face and the diameter. Among them, both the first included angle and the second included angle are acute angles, and the first included angle is greater than the second included angle.

[0015] As a further improvement of the embodiment of the present utility model, the gear body and the teeth are arranged as an integrally formed structure, and the plurality of teeth are evenly distributed at intervals along the circumferential direction of the gear body.

[0016] As a further improvement of the embodiment of the present utility model, wherein, a plurality of mounting holes are symmetrically arranged on the two gear bodies in each gear assembly, each mounting hole on the gear piece corresponds to a tooth on the gear piece, each of the mounting holes is located between the outer peripheral surface of the gear seat body and the outer side wall of the mounting sleeve, and the gear body is detachably connected to the gear seat body through a fastener, and the fastener passes through the mounting hole.

[0017] As a further improvement of the embodiment of the present utility model, wherein, the number of teeth of each gear piece is set to 8, and the number of fasteners is also set to 8.

[0018] An embodiment of the present utility model further provides a scraper conveyor system, which includes a plurality of scrapers arranged in parallel and two chains. The plurality of scrapers are arranged at intervals in a direction perpendicular to the axial direction of the scraper. The two chains are connected to both ends of the plurality of scrapers. The scraper conveyor system further includes the gear drive structure as described above. The gear drive structure includes a sprocket shaft. The two ends of the sprocket shaft respectively pass through the two gear seats from the central axes of the two gear seats. Each chain corresponds to a gear assembly and the chain meshes with the two gear pieces in the corresponding gear assembly.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1) The two gear assemblies can synchronously drive the cyclic movement of the two chains and the scrapers, thereby realizing the continuous conveying of materials. This design not only enhances the overall load-bearing capacity of the system, but also can avoid shaking during transportation, and at the same time extends the service life of the gear assemblies;

[0021] 2) The detachable connection between the gear seat and the gear piece makes the maintenance and replacement of the system more convenient, reduces the operation cost, and improves the production efficiency. Description of the Drawings

[0022] Figure 1 It is a left view of a gear drive structure provided by an embodiment of the present utility model;

[0023] Figure 2 It is Figure 1 a schematic cross-sectional structure view in the A-A direction in

[0024] Figure 3 It is Figure 1 a schematic structure view of the gear seat in

[0025] Figure 4 It is Figure 1 a schematic structure view of the gear piece in

[0026] Figure 5 is Figure 4 an enlarged view of the position M in

[0027] The above description of the drawings includes the following reference numerals:

[0028] 1. Gear assembly;

[0029] 11. Gear seat;

[0030] 111. Gear seat body;

[0031] 1111. Fixing hole;

[0032] 112. Installation sleeve;

[0033] 12. Gear plate;

[0034] 121. Gear body;

[0035] 1211. Installation hole;

[0036] 122. Teeth;

[0037] 1221. Tooth end face;

[0038] 1222. First side;

[0039] 1223. Second side;

[0040] 13. Fastener;

[0041] 2. Sprocket shaft. Detailed implementation manners

[0042] It should be noted that, without conflict, the embodiments and features in the embodiments of this application may be combined with each other. The following will describe the present invention in detail with reference to the drawings and in combination with the embodiments.

[0043] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0044] In the present invention, unless otherwise stated, the orientation terms such as "upper, lower, top, bottom" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refer to the inner and outer of the contours of the components themselves, but the above orientation terms do not limit the present invention.

[0045] In order to solve the problems existing in the prior art that the conveying device driven by a single sprocket for scraping plates has large shaking, high maintenance frequency, and high difficulty and cost in replacement when facing fine and large amounts of ore powder. The utility model provides a gear drive structure for a scraping plate conveying system and a scraping plate conveying system.

[0046] The following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0047] As Figures 1-5 shown, an embodiment of the present utility model provides a gear drive structure for a scraping plate conveying system, which includes a driving unit. The driving unit includes two gear assemblies 1 arranged oppositely and capable of synchronous movement. Each gear assembly 1 includes a gear seat 11 arranged coaxially and two gear discs 12. The two gear discs 12 are respectively symmetrically arranged on both sides of the gear seat 11 in the axial direction and are detachably connected to the gear seat 12.

[0048] Through the above arrangement, the two gear assemblies 1 can be used to engage with two chains at both ends of the scraping plate, so as to enhance the stability and load-bearing capacity of the scraping plate conveying system, reduce the shaking during operation, and also improve the service life of the gear assemblies 1 themselves; in addition, the detachable connection between the gear discs 12 and the gear seat 11 can ensure that when the gear discs 12 are damaged, only the gear discs 12 can be replaced, thereby reducing the maintenance cost of the equipment.

[0049] Furthermore, referring to Figure 2 shown, the gear seat 11 of each gear assembly is carefully designed. Each gear seat 11 in each gear assembly has a first side close to another gear assembly. The distance between the two first sides is precisely controlled between 296 and 306 millimeters. Corresponding to Figure 2 shown, the distance between the two first sides is the distance d in the figure, and this distance d is precisely controlled between 296 and 306 millimeters.

[0050] This setting not only ensures the synchronism and stability between the double gear assemblies, but also optimizes the meshing effect with the scraping plate chain, further reducing the shaking during operation.

[0051] The setting of this distance range is based on multiple experimental verifications, aiming to achieve the best power transmission efficiency and the longest service life, reflecting the precise control of details and the extreme pursuit of performance of the present utility model.

[0052] Still referring to Figure 2As shown, further, the design of the gear seat 11 reflects a high degree of modularity and maintainability. Specifically, the gear seat 11 includes a gear body 111 and a mounting sleeve 112. The gear seat body 111 serves as a support structure, and the mounting sleeve 112 is inserted through it along the central axis of the gear seat body 111. The two gear plates 12 are cleverly sleeved on the outer side wall of the mounting sleeve 112, achieving precise positioning.

[0053] Further, while the two gear plates 12 are sleeved on the mounting sleeve 112, they are also detachably connected to the two axial sides of the gear seat body 111 respectively. This connection design can ensure that the two gear plates 12 maintain a stable connection with the gear body 111 during rotation; at the same time, they can be easily replaced as needed, greatly improving the maintenance efficiency.

[0054] Specifically, a mounting sleeve hole is opened along the central axis of each gear plate 12. Through this mounting sleeve hole, the gear plate 12 can be precisely sleeved on the outer side wall of the mounting sleeve 112. Such a setting can ensure the concentricity of the connection.

[0055] Further, the drive unit further includes a sprocket shaft 2, and both ends of the sprocket shaft 2 are respectively inserted through the two mounting sleeves 112. A key connection is adopted between the sprocket shaft 2 and the mounting sleeve 112. This connection method not only transmits a powerful torque but also ensures no relative sliding between the sprocket shaft 2 and the mounting sleeve 112, thereby reducing energy loss during the transmission process and improving the transmission efficiency.

[0056] Generally, an assembly hole 1121 is formed by enclosing the side wall of the mounting sleeve 112, and both ends of the sprocket shaft 2 are respectively inserted into the two assembly holes 1121.

[0057] Preferably, the gear seat body 111 and the mounting sleeve 112 are integrally formed, seamlessly connected, which not only enhances the stability of the overall structure but also simplifies the manufacturing process and improves the production efficiency. This design ensures the stability of the gear seat during high-load operation and provides a solid support for the precise meshing of the gear plates 12.

[0058] Further, referring to Figure 2 and Figure 4 as shown, each gear plate 12 consists of a gear body 121 as the skeleton, and a plurality of involute teeth 122 are evenly distributed thereon. These teeth have the same shape and are arranged at intervals along the outer circumference of the gear body 121, which not only enhances the meshing strength but also ensures the smoothness of the transmission. The teeth 122 not only radially protrude from the outer circumference of the gear body 121 but also extend beyond the outer circumference of the gear seat body 111, forming an effective transmission contact surface and optimizing the power transmission efficiency.

[0059] AsFigure 4 As shown, the mounting sleeve hole of the gear segment 12 is provided on the gear body 121, and the gear body 121 is sleeved on the outer side wall of the mounting sleeve 122 through the mounting sleeve hole.

[0060] Reference Figure 5 to the detailed drawing, in the gear drive structure, the fine design of the teeth 122 further improves the meshing efficiency and stability with the chain.

[0061] Specifically, the teeth 122 not only have a standard tooth end face 1221, but also cleverly have a first side face 1222 and a second side face 1223 arranged on both sides thereof, forming a unique geometric configuration. The gear seat body 111 is set to be circular in this embodiment, and the gear seat body 111 has a diameter perpendicular to the tooth end face 1221. The first side face 1222 and the second side face 1223 respectively form an angle with this diameter. Corresponding to Figure 5 in, these two angles are namely the first angle a and the second angle b. Both the first angle a and the second angle b are designed to be acute angles. In particular, the first angle a is set to be greater than the second angle b.

[0062] This unique design shows significant advantages in practical applications: when meshing with the chain, the first side face 1222 is usually designed to contact the chain before the second side face 1223. Since the first angle a is greater than the second angle b, this sequential contact makes the teeth 122 form a kind of "barb", enhancing the gripping force when the teeth 122 contact the chain.

[0063] During the meshing process of the teeth 122 and the chain, after the first side face 1222 contacts the chain, the second side face 1223 follows up, ensuring the continuity and stability of the meshing. Designed in this way, it not only effectively improves the power transmission efficiency between the sprocket and the chain, but also significantly reduces the wear and noise caused by poor meshing, extends the service life of the equipment, and optimizes the overall transmission performance.

[0064] Preferably, the gear body 121 and the teeth 122 are designed as an integrally formed structure, ensuring the integrity and strength of the structure. Multiple teeth 122 are evenly distributed along the circumferential direction of the gear body 121, which not only improves the balance of transmission, but also enhances the evenness of meshing with the chain, effectively reducing the wear caused by uneven force and extending the service life of the gear segment.

[0065] Furthermore, referring to Figure 1 、 Figure 3 and Figure 4 shown, in the gear drive structure, the design of each gear component fully considers the convenience of installation and maintenance.

[0066] Specifically, a plurality of mounting holes 1211 are symmetrically arranged on the two gear bodies 121 in a clever way. These mounting holes not only have a reasonable layout, but each hole precisely corresponds to a tooth 122, ensuring the balance and stability of the structure. The mounting holes 1211 are cleverly located between the outer peripheral surface of the gear seat body 111 and the outer side wall of the mounting sleeve 112, providing an ideal space for the penetration of the fastener 13.

[0067] The fastener 13 can be set as, for example, high-strength bolts, which are carefully selected to achieve a firm connection between the gear body 121 and the gear seat body 111. These bolts pass through the mounting holes 1211 and, through threaded fitting or cooperating with nuts, firmly fix the gear piece 12 to the gear seat 11. This design not only simplifies the installation process but also facilitates disassembly and replacement when needed, greatly reducing the maintenance cost and time. At the same time, the selection of fasteners such as bolts also fully considers bearing the huge torque and impact force generated during the transmission process, ensuring the reliability and safety of the sprocket device operation.

[0068] Preferably, the gear piece 12 includes 8 teeth, and the 8 teeth 122 are evenly distributed in the circumferential direction of the gear body 121. The corresponding fasteners 13 are also set to 8, ensuring a firm connection, simplifying the disassembly and assembly process, and improving the maintenance efficiency.

[0069] An embodiment of the present utility model further provides a scraper conveyor system, which is composed of a plurality of carefully designed components and aims to improve the efficiency and reliability of material transportation. The system includes multiple parallelly arranged scrapers, and these scrapers are evenly spaced along the direction perpendicular to the axial direction of the scraper itself, ensuring the smoothness of the material during transportation.

[0070] Two strong chains are respectively connected to both ends of the scraper, forming a stable traction structure. Particularly crucial is that the system integrates the above-mentioned gear drive structure, where the sprocket shaft 2 is the core component, and the two ends of the sprocket shaft 2 are precisely penetrated through the two gear seats 11, achieving the compactness and stability of the structure.

[0071] Preferably, the two ends of the sprocket shaft 2 are respectively penetrated through the two gear seats 11 from the central axes of the two gear seats 11. Such a setting can ensure that the two gear seats 11 and the sprocket shaft 2 perform coaxial motion, and further ensure the coaxial motion between the two gear pieces 12 connected to each gear seat 11.

[0072] Each chain is ingeniously arranged corresponding to a gear assembly, ensuring accurate and efficient power transmission. Each chain meshes tightly with two gear discs 12 in the gear assembly, and the synchronous rotation of the two gear discs 12 drives the corresponding chain to move. The two gear assemblies 1 are arranged to move synchronously. Therefore, the two gear assemblies 1 can synchronously drive the cyclic movement of the two chains and the scraper, thus realizing the continuous conveying of materials. This design not only enhances the overall load-bearing capacity of the system, but also significantly improves the transmission efficiency and reduces energy consumption. At the same time, due to the modular design of the gear assembly, the maintenance and replacement of the system are more convenient, reducing the operating cost and improving the production efficiency.

[0073] In summary, the embodiments of the present utility model achieve the following technical effects:

[0074] 1) The two gear assemblies 1 can synchronously drive the cyclic movement of the two chains and the scraper, thus realizing the continuous conveying of materials. This design not only enhances the overall load-bearing capacity of the system, but also can avoid shaking during transportation, and at the same time extends the service life of the gear assembly 1;

[0075] 2) The detachable connection between the gear seat 11 and the gear disc 12 makes the maintenance and replacement of the system more convenient, reduces the operating cost and improves the production efficiency.

[0076] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0077] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0078] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0079] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A gear drive structure for a scraper conveying system, characterized in that: It includes a driving unit, which includes two gear assemblies arranged relatively to each other and capable of synchronous movement. Each of the gear assemblies includes a coaxially arranged gear seat and two gear plates. The two gear plates are symmetrically arranged on both sides of the gear seat in the axial direction and are detachably connected to the gear seat.

2. The gear drive structure according to claim 1, characterized in that: The gear seat in each of the gear assemblies has a first side close to another gear assembly, and the distance between the two first sides is between 296 and 306 mm.

3. The gear drive structure according to claim 1, characterized in that: The gear seat includes a gear seat body and a mounting sleeve passing through the gear seat body along its central axis. The two gear plates are sleeved on the outer side walls of the mounting sleeve and are detachably connected to the two sides of the gear seat body in the axial direction. The driving unit also includes a sprocket shaft, and the two ends of the sprocket shaft are respectively passed through the two mounting sleeves.

4. The gear drive structure according to claim 3, characterized in that: The gear seat body and the mounting sleeve are configured as an integrally formed structure.

5. The gear drive structure according to claim 3, characterized in that: Each of the gear pieces includes a gear body and a plurality of involute gear teeth of the same shape. The plurality of involute gear teeth are arranged at intervals along the outer circumference of the gear body and protrude radially from the outer circumference of the gear body and the gear seat body. The gear body is sleeved on the outer side of the mounting sleeve.

6. The gear drive structure according to claim 5, characterized in that: The gear tooth has a gear tooth end face and a first side face and a second side face connected to both sides of the gear tooth end face. The gear seat body has a diameter perpendicular to the gear tooth end face. The first side face and the second side face respectively form a first angle and a second angle with the diameter, wherein the first angle and the second angle are both acute angles, and the first angle is greater than the second angle.

7. The gear drive structure according to claim 5, characterized in that: The gear body and the involute gear teeth are arranged as an integrally formed structure, and a plurality of the involute gear teeth are evenly spaced and distributed along the circumference of the gear body.

8. The gear drive structure according to claim 5, characterized in that: A plurality of mounting holes are symmetrically arranged on the two gear bodies in each gear assembly, each mounting hole on the gear plate corresponds to a gear tooth on the gear plate, each mounting hole is located between the outer peripheral surface of the gear seat body and the outer side wall of the mounting sleeve, and the gear body is detachably connected to the gear seat body by a fastener, and the fastener is passed through the mounting hole.

9. The gear drive structure according to claim 8, characterized in that: The number of the involute gear teeth of each gear plate is set to 8, and the number of the fasteners is also set to 8.

10. A scraper conveying system, characterized in that: It includes a plurality of parallel scrapers and two chains, wherein the plurality of scrapers are spaced apart in a direction perpendicular to the axial direction of the scrapers, and the two chains are connected to both ends of the plurality of scrapers. The scraper conveying system also includes a gear drive structure as described in any one of claims 1 to 9, wherein the gear drive structure includes a sprocket shaft, and both ends of the sprocket shaft are respectively passed through the center axes of the two gear seats and are respectively arranged on the two gear seats, and each chain is arranged corresponding to a gear assembly and the chain is meshed with two gear plates in the corresponding gear assembly.

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