Scraper conveyer

Abstract

The utility model discloses a scraper conveyor which comprises a machine head, a transition groove, a machine body and a machine tail, the machine head, the transition groove, the machine body and the machine tail are sequentially connected, and the machine body comprises at least one scraper chain which is arranged on the outer side of the machine head, the outer side of the transition groove, the outer side of the machine body and the outer side of the machine tail in a sleeved mode in the extending direction of the scraper conveyor. The machine body further comprises a plurality of middle grooves which are sequentially arranged in the extending direction of the machine body and connected, the middle groove at the front end is connected with the transition groove, and the middle groove at the rear end is connected with the machine tail. The plurality of scrapers are arranged at intervals along the outer wall of an integral structure formed by the machine head, the transition groove, the machine body and the machine tail, and are fixedly connected to the scraper chain; the middle groove and the scraping plate are polymer composite material parts.

Description

Technical Field

[0001] This utility model relates to the field of coal mining equipment, and in particular to a scraper conveyor. Background Technology

[0002] Scraper conveyors are a type of continuous transport equipment widely used in coal mines, metal mines, and other mining operations. Traditional scraper conveyors are primarily made of steel. While they offer high structural strength and wear resistance, their heavy weight leads to high energy consumption and inconvenience in installation and transportation. Furthermore, steel is prone to rust and wear over long-term use, requiring regular maintenance and replacement, which increases operating costs. With the gradual increase in daily coal production by mining companies, improving the working efficiency of scraper conveyors has become an urgent problem to be solved. Utility Model Content

[0003] This solution addresses the problems and needs raised above by proposing a scraper conveyor that achieves the aforementioned technical objectives and brings about several other technical benefits due to the adoption of the following technical features.

[0004] This utility model proposes a scraper conveyor, including a head, a transition trough, a body, and a tail, which are connected sequentially. The body includes at least one scraper chain, which is sleeved on the outside of the head, transition trough, body, and tail along the extension direction of the scraper conveyor.

[0005] The feature is that the fuselage further includes:

[0006] Multiple central slots are arranged sequentially and connected along the extension direction of the fuselage, wherein the central slot at the front end is connected to the transition slot, and the central slot at the rear end is connected to the tail section.

[0007] Multiple scrapers are spaced apart along the outer wall of the integral structure formed by the machine head, transition groove, machine body and machine tail, and are fixedly connected to the scraper chain;

[0008] Both the central groove and the scraper are made of polymer composite materials.

[0009] In this technical solution, a drive motor on the machine head drives the scraper chain to rotate, which in turn drives the scrapers connected to it to rotate, thus transporting the material between the two scrapers from one end of the scraper conveyor to the other. Firstly, because the central trough and scrapers of this scraper conveyor are made of high-polymer wear-resistant material, the overall weight of the scraper conveyor is reduced, energy consumption is decreased, and transportation efficiency is improved. Using the high-polymer wear-resistant material in this technical solution effectively reduces the required drive motor power when transporting the same amount of live material per unit time and length. Secondly, compared to existing technologies, this technical solution improves installation and transportation convenience and reduces labor costs. Existing steel central troughs typically weigh around 150 kg, while the density of high-polymer materials differs from that of steel by several times. This means that when using the central trough of this technical solution, the efficiency of workers in transporting, assembling, and disassembling the scraper conveyor will be multiplied, reducing the labor intensity of workers. Finally, this technical solution extends the service life of the equipment, reduces the frequency of maintenance and replacement, and lowers operating costs.

[0010] In addition, the scraper conveyor according to this utility model may also have the following technical features:

[0011] In one example of this utility model, both the central groove and the scraper are ultra-high molecular weight polyethylene composite parts or polyurethane composite parts.

[0012] In one example of this utility model, the central groove includes:

[0013] Middle section;

[0014] The groove side is symmetrically connected to both sides of the middle plate. The middle plate is connected to the groove side at a position near the middle in the thickness direction, and a connecting hole is formed between the middle plate and the groove side.

[0015] In one example of this utility model, a connecting plate is also included, located at the lower end of the groove and connecting two symmetrically arranged grooves.

[0016] In one example of this utility model, the middle plate, the groove side, and the connecting plate are integrally formed parts.

[0017] In one example of this utility model, the middle plate and the groove side are integrally formed, and the connecting plate is detachably connected to the groove side.

[0018] In one example of this utility model, a groove is formed on one of the groove side and the connecting plate, and a slider adapted to the groove is formed on the other.

[0019] In one example of this utility model, the structural shape of the connecting hole is one of a triangle, a quadrilateral, and a pentagon.

[0020] In one example of this utility model,

[0021] The middle plate includes:

[0022] Main body;

[0023] The bifurcated portions are formed at both ends of the main body, each of the bifurcated portions including two extension plates, each extension plate extending from the main body in a direction away from the main body and close to the groove, and the connecting hole is formed between the two extension plates and the groove.

[0024] In one example of this utility model, the connection between the forked portion and the groove side is rounded.

[0025] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. The drawings are merely illustrative of some embodiments of this utility model and are not intended to limit the scope of all embodiments of this utility model.

[0027] Figure 1 This is a front view of a scraper conveyor according to an embodiment of the present utility model;

[0028] Figure 2 This is a top view of a scraper conveyor according to an embodiment of the present utility model;

[0029] Figure 3 This is a front view of the central groove according to an embodiment of the present utility model;

[0030] Figure 4 for Figure 3 A magnified view of a portion of point Q;

[0031] Figure 5 This is a perspective view of the central groove according to one embodiment of the present invention;

[0032] Figure 6 This is a perspective view of the central groove according to another embodiment of the present invention;

[0033] Figure 7 for Figure 6 A magnified view of a portion of point Q;

[0034] Figure 8This is a perspective view of the central groove according to another embodiment of the present invention.

[0035] List of reference numerals in the attached diagram:

[0036] Scraper conveyor 10;

[0037] Fuselage 1;

[0038] Transition groove 2;

[0039] No. 3;

[0040] Tail 4;

[0041] Shaft 5;

[0042] Slot 51;

[0043] Central trough 100;

[0044] Middle plate 110;

[0045] Main body 111;

[0046] Forked portion 112;

[0047] Extension plate 1121;

[0048] 120mm groove;

[0049] Slide 121;

[0050] Connecting plate 140;

[0051] Slider 141;

[0052] Connection hole 130;

[0053] Connection point 150;

[0054] Round the corners by 151;

[0055] Reinforcing rib 160;

[0056] Scraper chain 200;

[0057] Scraper 300;

[0058] Extension direction Y;

[0059] Width direction K;

[0060] Thickness direction H. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0062] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0063] This utility model proposes a scraper conveyor 10, such as Figure 1 and Figure 2 As shown, it includes a head unit 3, a transition groove 2, a body 1, and a tail unit 4, which are connected sequentially. The body 1 includes:

[0064] At least one scraper chain 200 is sleeved on the outside of the head 3, transition groove 2, body 1 and tail 4 along the extension direction Y of the scraper conveyor 10;

[0065] Multiple central slots 100 are arranged sequentially and connected along the extension direction Y of the fuselage 1, wherein the central slot 100 at the front end is connected to the transition slot 2, and the central slot 100 at the rear end is connected to the tail 4.

[0066] Multiple scrapers 300 are spaced along the outer wall of the integral structure formed by the machine head 3, transition groove 2, machine body 1 and machine tail 4, and are fixedly connected to the scraper chain 200.

[0067] Both the central groove 100 and the scraper 300 are made of polymer composite materials.

[0068] For example, the scraper chain 200 includes two chains, which are disposed on both sides of the scraper conveyor 1 in the width direction K (perpendicular to the extension direction Y);

[0069] For example, pivotable shafts 5 are respectively provided on the head 3 and the tail 4. Each shaft 5 has two rotating grooves 51. Two scraper chains 200 are respectively fitted into the rotating grooves 51 of the shaft 5 of the head 3 and the rotating grooves 51 of the shaft 5 of the tail 4, and scraper 300 is fixedly connected between the two scraper chains 200.

[0070] For example, the machine head 3 includes a drive motor and a reducer. The output shaft of the drive motor is connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the rotating shaft of the machine head 2. The drive motor drives the rotating shaft to rotate, thereby driving two interconnected scraper chains 200 to rotate synchronously and periodically along the outer side of the machine head 3, transition groove 2, machine body 1 and machine tail 4.

[0071] The specific working process is as follows: The drive motor on the machine head 3 drives the scraper chain 200 to rotate, and the scraper chain 200 drives the scraper 300 connected to it to rotate, thereby transporting the material located between the two scraper 300 from one end of the scraper conveyor 10 to the other end. First, because the middle trough 100 and scraper 300 of the scraper conveyor 10 are made of high-polymer wear-resistant material, the overall weight of the scraper conveyor is reduced, energy consumption is reduced, and transportation efficiency is improved. After using the high-polymer wear-resistant material in this technical solution, the required drive motor power can be effectively reduced when transporting the same amount of live material per unit time and length. Second, compared with the existing technology, this technical solution improves the convenience of installation and transportation and reduces labor costs. The weight of the existing steel middle trough 100 is generally around 150kg, while the density of high-polymer material differs from that of steel by several times. This means that when using the middle trough 100 of this technical solution, the efficiency of workers in transporting, assembling, and disassembling the scraper conveyor will be multiplied, reducing the labor intensity of workers. Finally, this technical solution extends the service life of equipment, reduces the frequency of maintenance and replacement, and lowers operating costs.

[0072] In one example of this utility model, the central groove 100 and the scraper 300 are both ultra-high molecular weight polyethylene composite parts or polyurethane composite parts.

[0073] Ultra-high molecular weight polyethylene composites include ultra-high molecular weight polyethylene, flame retardants, antistatic agents, antioxidants, and lubricants.

[0074] The ultra-high molecular weight polyethylene composite material contains 80-90 parts ultra-high molecular weight polyethylene, 10-12 parts flame retardant, 6-8 parts antistatic agent, 0.8-1.2 parts antioxidant, and 0.5-0.8 parts lubricant.

[0075] Polyurethane composites include polyurethane, flame retardants, antistatic agents, antioxidants, and lubricants.

[0076] The polyurethane composite material contains 60-80 parts polyurethane, 12-15 parts flame retardant, 12-15 parts antistatic agent, 1-1.5 parts antioxidant, and 0.5-1 part lubricant.

[0077] The preferred central groove 100 and scraper 300 of this invention are made of modified polytetrafluoroethylene, a reinforced wear-resistant engineering plastic with self-lubricating properties.

[0078] Extensive testing has proven that the central groove 100 and scraper 300 of ultra-high molecular weight polyethylene composite parts or polyurethane composite parts can withstand the gravitational load of materials and have flame-retardant, antistatic, anti-oxidation and self-lubricating functions.

[0079] In one example of this utility model, the central groove 100, as... Figure 3 , Figure 5 , Figure 6 and Figure 8 As shown, it includes:

[0080] Middle plate 110;

[0081] The groove side 120 is symmetrically connected to both sides of the middle plate 110. The middle plate 110 is connected to the groove side 120 near the middle position in the thickness direction H. A connecting hole 130 is formed between the middle plate 110 and the groove side 120.

[0082] The central plate 110, the groove side 120, and the connecting plate 140 are all polymer composite material parts.

[0083] In this case, the thickness direction H is perpendicular to the width direction K and the extension direction Y.

[0084] The diagram shows the structure of the central trough 100. The central plate 110 and the trough side 120 are both made of high-molecular composite materials, which can reduce the weight of the scraper conveyor 10, while improving the wear resistance and corrosion resistance of the central trough 100, greatly improving the service life and conveying efficiency of the scraper conveyor 10, and reducing production costs and labor intensity.

[0085] It is understandable that the above-mentioned method for preparing the middle trough of the scraper conveyor includes the following steps:

[0086] The ultra-high molecular weight polyethylene composite material is fed into the extruder uniformly and continuously;

[0087] Melting, plasticizing, and filtering of ultra-high molecular weight polyethylene composite materials;

[0088] The filtered ultra-high molecular weight polyethylene composite material is extruded to obtain the pre-finished product of the middle trough of the scraper conveyor;

[0089] Cooling and fixed-length traction of pre-finished products in the middle trough of the scraper conveyor;

[0090] The pre-finished scraper conveyor trough is cut after fixed-length traction to obtain the scraper conveyor trough;

[0091] The pre-finished product of the scraper conveyor's middle trough or the scraper conveyor's middle trough is treated with coating or adhesive spraying.

[0092] The above preparation method can be used to prepare the middle trough of the scraper conveyor.

[0093] In one example of this utility model, it further includes: a connecting plate 140, located at the lower end of the groove 120, and connecting two symmetrically arranged grooves 120;

[0094] By setting a connecting plate 140 at the lower end of the trough side 120, it is possible to prevent debris from entering the upper end of the middle plate 110 from the lower end of the scraper conveyor 10 during the operation of the middle trough 100, and it can also improve the overall structural strength of the middle trough 100.

[0095] In one example of this utility model,

[0096] The central plate 110, the groove side 120, and the connecting plate 140 are integrally formed parts;

[0097] For example, the central plate 110, the groove side 120 and the connecting plate 140 can be extruded, and the above-mentioned integrated structure can improve the overall structural strength of the central groove 100.

[0098] In one example of this utility model,

[0099] The middle plate 110 and the groove side 120 are integrally formed parts, and the connecting plate 140 is detachably connected to the groove side 120;

[0100] The detachable connection between the connecting plate 140 and the groove side 120 facilitates the assembly and disassembly of the connecting plate 140 and the groove side 120, allowing the connecting plate 140 to be installed in the middle groove 120 and also to be removed.

[0101] In one example of this utility model, a groove 121 is provided on one of the groove 120 and the connecting plate 140, and a slider 141 adapted to the groove 121 is formed on the other.

[0102] For example, such as Figure 6 , Figure 7 As shown, a sliding groove 121 is provided on the opposite end face of the two grooves 120, and a slider 141 is formed on both ends of the connecting plate 140, and the slider 141 is adapted to the sliding groove 121.

[0103] For example, sliders 141 are respectively provided on the opposite end faces of the two grooves 120, and grooves 121 are respectively formed on both ends of the connecting plate 140, and the sliders 141 are adapted to the grooves 121.

[0104] The above structure facilitates the connection between the connecting plate 140 and the groove 120, and it can also be used by removing the middle groove 100 of the connecting plate 140.

[0105] It should be noted that the connecting plate 140 itself does not bear gravity. It is located at the lower end of the middle trough 100. Its main function is to prevent debris from entering the upper end of the middle plate 110 from the lower end of the scraper conveyor 10 during the operation of the middle trough 100. Moreover, since the middle troughs 100 are arranged and connected sequentially along the extension direction Y, they are stationary. The connecting plate 140 at the lower end is limited by the middle troughs 100 on both sides, and it will not move or slip in the extension direction Y.

[0106] In one example of this utility model, the structural shape of the connecting hole 130 is one of a triangle, a quadrilateral, and a pentagon; correspondingly, the shape of the connecting hole 130 is consistent with the cross-sectional shape of the pin; for example, the shape of the connecting hole 130 is triangular, and the cross-section of the pin connecting the connecting holes 130 of two adjacent central grooves 100 is triangular.

[0107] In one example of this utility model, such as Figure 4 As shown,

[0108] The central plate 110 includes:

[0109] Main body 111;

[0110] Forked portions 112 are formed at both ends of the main body portion 111. Each forked portion 112 includes two extension plates 1121. Each extension plate 1121 extends from the main body portion 111 in a direction away from the main body portion 111 and close to the groove side 120. The connecting hole 130 is formed between the two extension plates 1121 and the groove side 120.

[0111] In other words, the central groove 100 formed by integral molding can form a connecting hole 130 between the central plate 110 and the groove side 120 by setting the bifurcated parts 112 at both ends of the main body 111. This method can save the trouble of drilling holes later. Since the integral molding process can greatly improve the structural strength of the connecting hole 130.

[0112] In one example of this utility model, the included angle between the two extension plates 1121 is 110 degrees to 130 degrees;

[0113] Preferably, the included angle between the two extension plates 1121 is 120 degrees.

[0114] By setting the included angle between the two extension plates 1121 to an obtuse angle, the structural strength of the connecting hole 130 can be improved, and the force on the connecting hole 130 in the middle groove 100 can be made more uniform during operation.

[0115] In one example of this utility model, the connection 150 between the forked portion 112 and the groove side 120 is formed with a rounded corner 151;

[0116] By setting a rounded corner 151, the stress concentration phenomenon between the connection 150 of the bifurcation 112 and the groove 120 can be greatly reduced.

[0117] In one example of this utility model, the connection 150 between the forked portion 112 and the groove side 120 is coated with a wear-resistant polymer material;

[0118] For example, a wear-resistant polymer material can be coated inside the rounded corner 151;

[0119] Because a horseshoe buckle (usually made of iron) is provided at the connection 150 between the bifurcation 112 and the groove side 120, the horseshoe buckle will shake during the operation of the middle groove 100 and generate friction between the connection 150. The connection 150 can be protected by coating with wear-resistant polymer material.

[0120] Of course, this utility model is not limited to this. The upper surface of the middle plate 110 of the middle groove 100 is also coated with a wear-resistant polymer material, thereby increasing the wear resistance of the middle plate 110.

[0121] Preferably, the surfaces of the central groove 100 and the scraper 300 are coated with a diamond-like coating.

[0122] The surface of the central trough 100 and scraper 300 is coated with a diamond-like coating, which enhances wear resistance and anti-aging properties, making its wear resistance higher than that of ordinary steel. Therefore, it can extend the working life of the central trough 100 and scraper 300, thereby reducing the number of maintenance and replacements and lowering the later operating costs.

[0123] In one example of this utility model, a reinforcing rib 160 is formed at the connection 150 between the connecting plate 140 and the groove side 120, thereby further improving the structural strength between the connecting plate 140 and the groove side 120.

[0124] The exemplary embodiments of the scraper conveyor 10 proposed by this utility model have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of this utility model, and various combinations can be made to the various technical features and structures proposed by this utility model without exceeding the protection scope of this utility model, which is determined by the appended claims.

Claims

1. A scraper conveyor, comprising a head (3), a transition trough (2), a body (1), and a tail (4), wherein the head (3), the transition trough (2), the body (1), and the tail (4) are sequentially fixedly connected, and the body (1) comprises: At least one scraper chain (200) is sleeved on the outside of the head (3), transition groove (2), body (1) and tail (4) along the extension direction (Y) of the scraper conveyor (10); The feature is that the fuselage (1) further includes: Multiple central slots (100) are arranged sequentially and connected along the extension direction (Y) of the fuselage (1), wherein the central slot (100) at the front end is connected to the transition slot (2), and the central slot (100) at the rear end is connected to the tail (4). Multiple scrapers (300) are spaced apart along the outer wall of the integral structure formed by the machine head (3), transition groove (2), machine body (1) and machine tail (4), and are fixedly connected to the scraper chain (200); The central groove (100) and the scraper (300) are both made of polymer composite materials.

2. The scraper conveyor according to claim 1, characterized in that, Both the central groove (100) and the scraper (300) are ultra-high molecular weight polyethylene composite parts or polyurethane composite parts.

3. The scraper conveyor according to claim 1, characterized in that, The central groove (100) includes: Middle plate (110); The groove (120) is symmetrically connected to both sides of the middle plate (110). The middle plate (110) is connected to the groove (120) at a position close to the middle in the thickness direction (H). A connecting hole (130) is formed between the middle plate (110) and the groove (120).

4. The scraper conveyor according to claim 3, characterized in that, It also includes a connecting plate (140), located at the lower end of the groove (120), and connecting two symmetrically arranged grooves (120).

5. The scraper conveyor according to claim 4, characterized in that, The central plate (110), the groove (120), and the connecting plate (140) are integrally formed parts.

6. The scraper conveyor according to claim 4, characterized in that, The central plate (110) and the groove (120) are integrally formed parts, and the connecting plate (140) is detachably connected to the groove (120).

7. The scraper conveyor according to claim 6, characterized in that, Of the groove (120) and the connecting plate (140), a groove (121) is provided on one of them, and a slider (141) adapted to the groove (121) is formed on the other.

8. The scraper conveyor according to claim 3, characterized in that, The structural shape of the connecting hole (130) is one of a triangle, a quadrilateral, and a pentagon.

9. The scraper conveyor according to claim 3, characterized in that, The central plate (110) includes: Main body (111); Forked portions (112) are formed at both ends of the main body (111). Each forked portion (112) includes two extension plates (1121). Each extension plate (1121) extends from the main body (111) in a direction away from the main body (111) and close to the groove (120). The connecting hole (130) is formed between the two extension plates (1121) and the groove (120).

10. The scraper conveyor according to claim 9, characterized in that, The junction (150) between the forked portion (112) and the groove (120) is rounded (151).

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