Middle trough and scraper conveyer

Abstract

The invention provides a middle trough and a scraper conveyer. The middle groove comprises a main body and a shovel plate, and the shovel plate is connected with the main body and provided with a protruding part protruding out of the main body in the first direction. Wherein the length of the protruding part in the first direction is gradually reduced from the middle to the two sides in the second direction, and the first direction and the second direction meet the vertical condition. In this way, the length of the protruding part in the first direction is gradually reduced from the middle to the two sides in the second direction, so that the part making more contact with raw coal is more protruding, higher in reliability and more resistant to abrasion, and the overall abrasion resistance of the shovel plate can be improved. Moreover, the middle part of the convex part is more convex relative to the two sides, the contacted raw coal can be pushed to the two sides to a certain extent, and the pushing load is dispersed to the two sides from the middle part, so that the pushing load at each part of the shovel plate is more balanced, and the occurrence of conditions such as breakage of the shovel plate is reduced. Especially when the inclination angle of the coal seam is large, the middle groove can be prevented from being damaged, and the coal mining efficiency is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of coal mining and transportation equipment, and in particular to a middle trough and a scraper conveyor. Background Art

[0002] During the coal mining process, the mined raw coal is usually transported to a transfer conveyor via a scraper conveyor, and then transported to the ground via other transportation equipment.

[0003] Among them, the middle trough is the main component of the tube sheet conveyor. Its working state will affect the working efficiency of the scraper conveyor, and then affect the efficiency of the overall coal mining process. The middle trough generally has a main body and a shovel plate and a baffle plate located on opposite sides of the main body. The shovel plate can shovel the raw coal to the transportation area on the main body, and the scraper plate can scrape away the raw coal in the transportation area to realize the transportation of raw coal.

[0004] However, when many coal mines are being mined, the coal seam inclination angle is relatively large. The existing middle slot is difficult to be applied to the work under such circumstances, and the mining efficiency is relatively low. Summary of the invention

[0005] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a middle trough is provided. The middle trough comprises: a main body; and a shovel plate, the shovel plate is connected to the main body and has a protrusion protruding from the main body in a first direction; wherein the length of the protrusion in the first direction gradually decreases from the middle to both sides along the second direction, and the first direction and the second direction meet a perpendicular condition.

[0006] The middle groove provided by the present application has a protruding portion whose length in the first direction gradually decreases from the middle to both sides along the second direction, so that the portion in contact with the raw coal is more protruding, more reliable and more wear-resistant, that is, the overall wear resistance of the shovel plate can be improved. In addition, the middle part of the protruding portion is more protruding relative to the two sides, so that the raw coal in contact can be pushed to both sides to a certain extent, so that the push load is dispersed from the middle to both sides, so that the push load at various parts of the shovel plate is more balanced, reducing the occurrence of shovel plate breakage and the like. Especially when the coal seam has a large inclination angle, the middle groove set in this way can avoid damage and ensure the efficiency of coal mining. It is also helpful to the development level of large-angle coal seam mining technology.

[0007] Exemplarily, the protrusion includes a middle body and a first side body and a second side body respectively connected to opposite sides of the middle body, the length of the middle body in the first direction is constant, and the length of the middle body in the first direction is greater than the length of the first side body in the first direction.

[0008] Exemplarily, the length of the middle body in the first direction is greater than the length of the second side body in the first direction.

[0009] Exemplarily, the outer edge of the first side body is arc-shaped.

[0010] Exemplarily, the outer edge of the second side body is arc-shaped.

[0011] Exemplarily, the main body has a bottom plate, and anti-skid ribs are arranged on the outer surface of the bottom plate. There are multiple anti-skid ribs, and some of the multiple anti-skid ribs are inclined in the first direction along the second direction.

[0012] Exemplarily, a plurality of anti-skid ribs are cross-arranged in a diamond shape.

[0013] According to another aspect of the present invention, a scraper conveyor is provided, which comprises any one of the above-mentioned middle troughs.

[0014] Exemplarily, a connecting groove is provided at the end of the main body in the second direction, and a connecting pin is connected to the connecting groove, wherein a partial structure of the connecting pin extends into the connecting groove and is limited in the connecting groove by a limiting block and a limiting pin, the end of the connecting pin passes through the limiting block, and a limiting hole and a first mounting hole are provided at the end of the connecting pin, the first mounting hole is closer to the limiting block than the limiting hole, the limiting pin is installed in the limiting hole, and an alarm component is connected to the first mounting hole.

[0015] Exemplarily, a second mounting hole is provided in the connecting groove, and the alarm component passes through the first mounting hole and the second mounting hole.

[0016] Exemplarily, the alarm component includes a detection coil, a detection switch and a signal transmitter, the detection coil passes through the first mounting hole and the second mounting hole, and the detection switch and the signal transmitter are both connected to the detection coil.

[0017] Exemplarily, the scraper conveyor further includes a monitoring unit, which is communicatively connected to the signal transmitter.

[0018] A series of simplified concepts are introduced in the summary of the invention, which will be further described in detail in the detailed description. The summary of the invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0019] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0021] Figure 1 A perspective view of a middle slot according to an exemplary embodiment of the present invention;

[0022] Figure 2 A top view of a middle groove according to an exemplary embodiment of the present invention;

[0023] Figure 3-4 A perspective view of a middle slot according to an exemplary embodiment of the present invention;

[0024] Figure 5 for Figure 4 A partial enlarged view of part A; and

[0025] Figure 6 2 is a front view of a middle groove according to an exemplary embodiment of the present invention.

[0026] The above drawings include the following reference numerals:

[0027] 10. middle groove; 110. main body; 1101. transport area; 1110. bottom plate; 1111. anti-skid ribs; 1120. connecting groove; 1121. second mounting hole; 120. shovel plate; 1210. protrusion; 1211. intermediate body; 1212. first side body; 1213. second side body; 1220. plate connecting part; 130. connecting pin; 1310. limiting hole; 1320. first mounting hole; 140. limiting block; 150. limiting pin; 160. alarm component; 1610. detection coil. DETAILED DESCRIPTION

[0028] In the following description, a large amount of details are provided so that the present invention can be thoroughly understood. However, it will be appreciated by those skilled in the art that the following description only exemplarily illustrates a preferred embodiment of the present invention, and the present invention can be implemented without one or more such details. In addition, in order to avoid confusion with the present invention, some technical features well known in the art are not described in detail.

[0029] In order to fully understand the embodiments of the present invention, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0030] An embodiment of the present invention provides a middle trough which can be applied to a scraper conveyor.

[0031] Reference Figure 1-4, the middle trough 10 may include a main body 110 and a shovel plate 120. A transport area 1101 may be formed on the main body 110, and the shovel plate 120 may shovel the raw coal so that the raw coal enters the transport area 1101. The raw coal in the transport area 1101 is transported away by a scraper. The shovel plate 120 may be connected to the main body 110 and have a protrusion 1210 protruding from the main body 110 in the first direction XX. The shovel plate 120 also includes a plate connecting portion 1220, and the protrusion 1210 is connected to the main body 110 through the plate connecting portion 1220. Among them, the length of the protrusion 1210 in the first direction XX may gradually decrease from the middle to both sides along the second direction YY, and the first direction XX and the second direction YY meet the vertical condition. That is to say, the middle part of the protrusion 1210 is the longest in the first direction XX (i.e., it is most protruding relative to the main body 110), and gradually decreases from the middle to the two sides (i.e., the protruding distance relative to the main body 110 gradually decreases), until the two ends (i.e., the end parts are where the protruding distance of the protrusion 1210 relative to the main body 110 is the smallest). The gradual decrease can be in the form of a circular arc, or in the form of a straight line. Among them, the first direction XX can be understood as the width direction of the middle groove 10. The second direction YY can be understood as the length direction of the middle groove 10, which is also the moving direction of the raw coal in the transportation area 1101. The middle part of the protrusion 1210 along the second direction YY, wherein the middle part can be a point in the length direction of the middle groove 10, or it can be an area. With the shovel plate 120 configured in this way, the middle part is more protruding relative to the two sides.

[0032] It is understandable that when the shovel plate 120 is pushed, the middle part of the protrusion 1210 is usually the first to contact the raw coal, causing the middle part of the protrusion 1210 to be more easily worn than the two sides. In addition, when in contact, the middle part of the protrusion 1210 is subjected to the greatest resistance to pushing, and the shovel plate 120 is subjected to uneven forces at various locations, making it more prone to problems such as fracture, failure, and damage. A shovel plate 120 that cannot work properly will affect the efficiency of coal mining. When the inclination of the coal seam is large, such as greater than 30°, the above situation will be more serious, and the middle groove 10 will be more easily damaged, that is, the efficiency of coal mining will be more easily affected. This also makes the level of development of mining technology for large-angle coal seams much lower than that of gently inclined coal seams.

[0033] The middle groove 10 provided by the present application has a protruding portion 1210 whose length in the first direction XX gradually decreases from the middle to the two sides along the second direction YY, so that the portion that contacts more raw coal is more protruding, more reliable and more wear-resistant, that is, the overall wear resistance of the shovel plate 120 can be improved. In addition, the middle part of the protruding portion 1210 is more protruding relative to the two sides, and the raw coal in contact can be pushed to the two sides to a certain extent, so that the push load is dispersed from the middle part to the two sides, so that the push load at various parts of the shovel plate 120 is more balanced, and the occurrence of the shovel plate 120 breaking and the like is reduced. Especially when the inclination angle of the coal seam is large, the middle groove 10 set in this way can avoid damage and ensure the efficiency of coal mining. It is also helpful to the development level of large-angle coal seam mining technology.

[0034] For example, refer to Figure 1 , 2 and 4, the protrusion 1210 may include an intermediate body 1211 and a first side body 1212 and a second side body 1213 respectively connected to opposite sides of the intermediate body 1211, and the length of the intermediate body 1211 in the first direction XX may be unchanged. The length of the intermediate body 1211 in the first direction XX may be greater than the length of the first side body 1212 in the first direction XX. In other words, the outer edge of the intermediate body 1211 may be linear. Among them, the connection between the first side body 1212 and the intermediate body 1211 is the maximum length of the first side body 1212 in the first direction XX, and the length of the first side body 1212 in the first direction XX gradually decreases in the direction away from the intermediate body 1211 until the end. Exemplarily, the length of the intermediate body 1211 in the first direction XX may be greater than the length of the second side body 1213 in the first direction XX. The connection point between the second side body 1213 and the intermediate body 1211 is the maximum length of the second side body 1213 in the first direction XX, and the length of the second side body 1213 in the first direction XX gradually decreases in the direction away from the intermediate body 1211 until the end. The length of the intermediate portion in the second direction YY set in this way can be longer, and the length of the intermediate portion in the first direction XX is relatively larger, that is, the intermediate portion is more reliable and wear-resistant. In an embodiment not shown, the outer edge of the intermediate body can be arc-shaped. Or, in other embodiments not shown, the protrusion can only include a first side body and a second side body connected to each other, and the length of the first side body in the first direction XX gradually decreases in the direction away from the second side body, and similarly, the length of the second side body in the first direction XX gradually decreases in the direction away from the first side body.

[0035] For example, refer to Figure 2 and 4, the outer edge of the first side body 1212 may be arc-shaped. For example, the outer edge of the second side body 1213 may be arc-shaped. In this way, the raw coal pushed over can be pushed to the side away from the middle body 1211, that is, the pushing load of each part of the shovel plate 120 can be better balanced. In an embodiment not shown, the outer edge of the first side body and / or the second side body may be straight.

[0036] For example, refer to Figure 3 The main body 110 may have a bottom plate 1110, and anti-skid ribs 1111 may be arranged on the outer surface of the bottom plate 1110. There may be multiple anti-skid ribs 1111, and some of the multiple anti-skid ribs 1111 may be inclined in the first direction XX along the second direction YY. It can be understood that the first direction XX may have two directions. For the convenience of description, the first direction XX is divided into a first sub-direction and a second sub-direction below. The first sub-direction is the direction from the main body 110 to the shovel board 120, and the second sub-direction is the direction from the main body 110 to the shovel board 120. Part of the anti-skid ribs 1111 may be inclined in the first sub-direction along the second direction YY, and part of the anti-skid ribs 1111 may be inclined in the second sub-direction along the second direction YY. The inclination angles of the anti-skid ribs 1111 of these two parts may be the same or different. Some of the anti-skid ribs 1111 arranged in this way have more friction with the bottom surface, which can better play an anti-skid role. The anti-skid ribs 1111 arranged obliquely can play an anti-skid role in multiple directions, further ensuring the anti-skid effect. Especially when the coal seam has a large inclination angle, the position of the middle groove 10 arranged in this way can be more stable, thereby ensuring the smooth progress of the coal mining process and ensuring work efficiency.

[0037] For example, refer to Figure 3 , the multiple anti-skid ribs 1111 can be arranged in a diamond shape and cross each other. In this way, the anti-skid effect is better. In an embodiment not shown, the multiple anti-skid ribs can be spaced apart from each other, that is, they do not cross each other.

[0038] According to another aspect of the present invention, a scraper conveyor is also provided. The scraper conveyor may include any of the above-mentioned middle troughs 10. Since the middle trough 10 adopts the technical solution of any of the above-mentioned embodiments, the scraper conveyor at least has the beneficial effects brought by the technical solution of the above-mentioned embodiments, which will not be described one by one here.

[0039] For example, in conjunction with reference Figure 4 and 5, the end of the main body 110 in the second direction YY may be provided with a connecting groove 1120, and the connecting groove 1120 may be connected to the connecting pin 130. Specifically, the scraper conveyor may have a plurality of middle grooves 10, and the plurality of middle grooves 10 are arranged along the second direction YY and connected by the connecting pin 130. Part of the structure of the connecting pin 130 may extend into the connecting groove 1120 and be limited in the connecting groove 1120 by the limiting block 140 and the limiting pin 150. The end of the connecting pin 130 may pass through the limiting block 140, and the end of the connecting pin 130 may be provided with a limiting hole 1310 and a first mounting hole 1320, the first mounting hole 1320 and the limiting hole 1310 may be arranged adjacently, the first mounting hole 1320 may be closer to the limiting block 140 relative to the limiting hole 1310, the limiting pin 150 is installed in the limiting hole 1310, and the alarm component 160 is connected to the first mounting hole 1320. Exemplarily, the alarm assembly 160 may be located in the connection groove 1120. The limit pin 150 may be a spring pin. It is understandable that during the coal mining process, the connection pin 130 will be buried by the raw coal, and the fragments of the raw coal will enter the connection groove 1120. The limit pin 150 will inevitably be worn during the contact with the raw coal. Especially when the coal seam inclination is large, the wear is more, and the limit pin 150 is more likely to wear and break. After the limit pin 150 is broken, it loses the cooperation with the limit block 140, and the connection pin 130 is easy to fall out of the connection groove 1120, resulting in the loss of the connection pin 130. In this embodiment, the setting of the alarm assembly 160 can better monitor the connection pin 130 by monitoring the limit pin 150, and can respond quickly after the limit pin 150 breaks to avoid the connection pin 130 from breaking as much as possible. Even if the connecting pin 130 is detached, it can be quickly discovered and repaired under the prompt of the alarm component 160 to ensure the operation of the scraper conveyor and further ensure the working efficiency of coal mining.

[0040] For example, refer to Figure 5 , a second mounting hole 1121 may be provided in the connecting groove 1120, and the alarm assembly 160 may pass through the first mounting hole 1320 and the second mounting hole 1121. In this way, the alarm assembly 160 is connected to both the main body 110 and the connecting pin 130, and the connection is more stable. In addition, when the connecting pin 130 is disengaged, the alarm assembly 160 is also damaged to a certain extent, which can better trigger the alarm. In an embodiment not shown, the alarm assembly can be installed and connected only to the first mounting hole.

[0041] For example, continue to refer to Figure 5, the alarm component 160 may include a detection coil 1610, a detection switch and a signal transmitter. The detection coil 1610 may pass through the first mounting hole 1320 and the second mounting hole 1121, and the detection switch and the signal transmitter are both connected to the detection coil 1610. The detection coil 1610 may be a metal wire. In normal operation, that is, the connecting pin 130 is not lost, the detection coil 1610 is in a connected state, the detection switch is in a closed state, and the signal transmitter is in a disconnected state. When the connecting pin 130 is detached, the limit card block 140 squeezes the limit pin 150 to cut off, and the limit card block 140 will cut off the detection coil 1610 behind the limit pin 150. At this time, the detection coil 1610 is disconnected, the detection switch is connected, and the signal transmitter is in a connected state to transmit a signal. Exemplarily, the signal transmitter may be connected to a power supply, and the power supply and the signal transmitter are disconnected in normal operation. When the connecting pin 130 is detached, the power supply is connected to the signal transmitter, and the signal transmitter transmits an alarm signal. With this arrangement, the overall structure of the alarm component 160 is simpler and the production cost is lower.

[0042] Exemplarily, the scraper conveyor further includes a monitoring unit, which is in communication with the signal transmitter. The scraper conveyor may include a plurality of middle slots 10, and each middle slot 10 may be provided with an alarm component 160. In this way, the signal transmitter sends an alarm signal to the monitoring unit, and the monitoring unit can better locate the position of the disconnected connecting pin 130, and the monitoring process is more accurate and intelligent.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by directional words such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "vertical", "horizontal", "top", "bottom", etc. is usually based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the contour of each component itself.

[0044] For ease of description, regional relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figure and other components or features. It should be understood that regional relative terms include not only the orientation of the components as described in the figure, but also different orientations in use or operation. For example, if the components in the accompanying drawings are inverted as a whole, the components "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Therefore, the exemplary term "above" may include both "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this article is intended to include all of these situations.

[0045] 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, it indicates the presence of features, steps, operations, parts, components and / or combinations thereof.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0047] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A middle tank, characterized in that: include: Subject (110); as well as A shovel plate (120), the shovel plate (120) being connected to the main body (110) and having a protruding portion (1210) protruding from the main body (110) in a first direction; The length of the protrusion (1210) in the first direction gradually decreases from the middle to both sides along the second direction, and the first direction and the second direction meet a perpendicular condition.

2. The middle tank according to claim 1, characterized in that: The protruding portion (1210) comprises a middle body (1211) and a first side body (1212) and a second side body (1213) respectively connected to opposite sides of the middle body (1211); the length of the middle body (1211) in the first direction is constant. The length of the intermediate body (1211) in the first direction is greater than the length of the first side body (1212) in the first direction, and / or The length of the intermediate body (1211) in the first direction is greater than the length of the second side body (1213) in the first direction.

3. The middle tank according to claim 2, characterized in that: The outer edge of the first side body (1212) is arc-shaped; and / or The outer edge of the second side body (1213) is arc-shaped.

4. The middle tank according to any one of claims 1 to 3, characterized in that: The main body (110) has a bottom plate (1110), and anti-skid ribs (1111) are arranged on the outer surface of the bottom plate (1110). The anti-skid ribs (1111) are multiple, and parts of the multiple anti-skid ribs (1111) are inclined in the first direction along the second direction.

5. The middle tank according to claim 4, characterized in that: The plurality of anti-slip ribs (1111) are cross-arranged in a rhombus shape.

6. A scraper conveyor, characterized in that: It comprises a middle groove (10) as claimed in any one of claims 1 to 5.

7. The scraper conveyor according to claim 6, characterized in that: The end of the main body (110) in the second direction is provided with a connecting groove (1120), and a connecting pin (130) is connected to the connecting groove (1120), wherein a part of the structure of the connecting pin (130) extends into the connecting groove (1120) and is limited in the connecting groove (1120) by a limiting block (140) and a limiting pin (150). The end of the connecting pin (130) passes through the limiting block (140), and the end of the connecting pin (130) is provided with a limiting hole (1310) and a first mounting hole (1320), the first mounting hole (1320) is closer to the limiting block (140) than the limiting hole (1310), the limiting pin (150) is installed in the limiting hole (1310), and the first mounting hole (1320) is connected to an alarm component (160).

8. The scraper conveyor according to claim 7, characterized in that: A second mounting hole (1121) is provided in the connection groove (1120), and the alarm component (160) passes through the first mounting hole and (1320) the second mounting hole (1121).

9. The scraper conveyor according to claim 8, characterized in that: The alarm component (160) comprises a detection coil (1610), a detection switch and a signal transmitter; the detection coil (1610) passes through the first mounting hole (1320) and the second mounting hole (1121); and the detection switch and the signal transmitter are both connected to the detection coil (1610).

10. The scraper conveyor according to claim 9, characterized in that: The scraper conveyor further comprises a monitoring unit, which is communicatively connected with the signal transmitter.

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