Transfer device of coal mining machine and coal mining machine

Abstract

The utility model provides a transfer device of a coal mining machine and the coal mining machine, and relates to the technical field of coal mining. The device comprises a shovel plate main body, a crushing assembly and a movable assembly, the crushing assembly is arranged on the shovel plate body and used for crushing coal, the movable assembly comprises a first movable door plate and a second movable door plate, and the first movable door plate and the second movable door plate are rotationally arranged on the two opposite sides of the shovel plate body correspondingly; the first movable door plate and the second movable door plate are relatively far away or relatively close to adjust the width of the shovel plate body. Therefore, according to the transfer device of the coal mining machine, the transport channel is additionally arranged, the transport efficiency is improved, coal is prevented from being scattered on the outer side of the shovel plate body, and effective loading and transporting are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of coal mining, and in particular to a transfer device for a coal mining machine and a coal mining machine. Background Art

[0002] An open-pit coal miner is a type of open-pit coal mining equipment used in coal mining operations.

[0003] In the prior art, open-pit coal miners consist of a loading mechanism, a cutting mechanism, and a scraper conveyor. The cutting mechanism is located below the loading mechanism. To facilitate movement of the shearer, the loading mechanism is narrower than the width of the shearer's travel path. The loading mechanism loads and transports the coal cut by the cutting mechanism onto the conveyor through a single channel.

[0004] However, the cut coal will be partially scattered on both sides of the loading mechanism, making it difficult to load effectively and blocking the moving channel of the coal mining machine, resulting in low transportation efficiency. Utility Model Content

[0005] The present application provides a transfer device and a coal mining machine for solving the problems that the existing cut coal is partially scattered on both sides of the loading mechanism, making it difficult to transport effectively, blocking the moving channel of the coal mining machine, and the efficiency of single-channel loading is low.

[0006] In order to achieve the above objectives, the technical solutions of this application are as follows:

[0007] In one aspect, the present application provides a transfer device for a coal mining machine, comprising: a shovel plate body, a crushing assembly, and a movable assembly;

[0008] The crushing assembly is set on the shovel body, and the crushing assembly is used to crush the coal.

[0009] The movable assembly includes a first movable door plate and a second movable door plate, and the first movable door plate and the second movable door plate are respectively rotatably arranged on two opposite sides of the shovel plate body;

[0010] The first movable door plate and the second movable door plate are relatively far away from or relatively close to each other, so as to adjust the width of the shovel plate body.

[0011] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application, the first movable door panel and the second movable door panel both include a rotating part and a blocking part, the blocking part is connected to the rotating part, the blocking part is plugged into the bottom plate, and the rotating part is hinged to the shovel plate body.

[0012] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application, the movable component also includes a telescopic part, the telescopic part is arranged on the side of the shovel plate body away from the crushing component, the telescopic part has a fixed end and a movable end, the fixed end is connected to the shovel plate body, and the movable end is connected to the rotating part of the first movable door panel or the second movable door panel.

[0013] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application, the shovel plate body includes a bottom plate and a side plate, the side plate is arranged on the bottom plate, the side plate and the bottom plate form an installation cavity, the crushing assembly is arranged in the installation cavity and connected to the bottom plate.

[0014] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application is provided with a scraper chain and a guide wheel in the feed channel, the guide wheel is arranged on the feed channel, and the scraper chain is arranged along the feed direction of the feed channel.

[0015] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application further includes a spray assembly, which is arranged on the top of the shovel plate body and faces the crushing assembly.

[0016] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application has multiple spray assemblies, and each spray assembly is arranged in a one-to-one correspondence with the positive star wheel or the reverse star wheel.

[0017] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application includes a limit assembly, wherein the limit assembly is arranged on the side of the shovel plate body facing the crushing assembly, one end of the limit assembly is connected to the first movable door plate or the second movable door plate, and the other end is connected to the shovel plate body.

[0018] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application comprises a crushing assembly including at least two positive star wheels and at least two reverse star wheels, the positive star wheels and the reverse star wheels being arranged on the shovel plate body to rotate alternately at intervals, and a feed channel being provided between two adjacent positive star wheels and reverse star wheels;

[0019] Both the positive star wheel and the counter star wheel have star wheel claws, which are rotated around the axis of the positive star wheel or the counter star wheel and are set on the shovel plate body. The rotation directions of the star wheel claws of the two adjacent positive star wheels and the counter star wheels are opposite to drive the coal into the feed channel.

[0020] On the other hand, the present application provides a coal mining machine comprising a loading mechanism and a transfer device for the coal mining machine according to any one of the above embodiments arranged on the loading mechanism.

[0021] The coal shearer transfer device and the coal shearer provided herein comprise a shovel plate body, a crushing assembly, and a movable assembly. The crushing assembly is mounted on the shovel plate body and is used to crush coal. The movable assembly includes a first movable door plate and a second movable door plate, which are rotatably mounted on opposite sides of the shovel plate body. The first and second movable door plates can be moved relatively apart or relatively close together to adjust the width of the shovel plate body. The two feed channels increase the transport channel compared to a single feed channel, improving transport efficiency. The relative distance between the first and second movable door plates facilitates expanding the width of the shovel plate body, allowing coal to fall into the shovel plate body and enter the feed channel through the star wheel assembly, preventing coal from scattering outside the shovel plate body and achieving efficient loading and unloading. The relative proximity of the first and second movable door plates facilitates reducing the width of the shovel plate body, allowing the coal shearer to pass smoothly through the movable channel. Thus, the coal shearer transfer device of the embodiment of the present invention increases the transport channel, improves transport efficiency, and prevents coal from scattering outside the shovel plate body, achieving efficient loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] Figure 1 A schematic structural diagram of a transfer device for a coal mining machine provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the transfer device of the medium coal mining machine from perspective A.

[0025] Description of reference numerals:

[0026] 100- shovel plate body;

[0027] 110- bottom plate;

[0028] 120-side panels;

[0029] 200-star wheel assembly;

[0030] 210-positive star wheel;

[0031] 220-reverse star wheel; 221-star wheel rake claw;

[0032] 300 - movable assembly; 310 - first movable door panel; 311 - rotating member; 312 - blocking member;

[0033] 320-second movable door panel;

[0034] 330- telescopic parts;

[0035] 400-feed channel;

[0036] 410-scraper chain;

[0037] 420-guide wheel.

[0038] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0039] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0040] It should be noted that in the description of the embodiments of the present application, terms such as "upper", "lower", "inside", and "outside" indicating orientation or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description, and do not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0041] In addition, it should be noted that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0043] Surface shearers are a type of open-pit coal mining equipment used in open-pit coal mining operations. They eliminate the need for drilling, blasting, and crushing processes, while offering advantages such as thin-layer selection and deep mining. The pulverized coal they mine can be sold directly, attracting widespread attention and being used in some open-pit mines.

[0044] In the prior art, open-pit coal miners consist of a loading mechanism, a cutting mechanism, a traveling mechanism, a hydraulic mechanism, and a scraper conveyor. The loading mechanism is located below the cutting mechanism, and its width is smaller than the shearer's travel path. The loading mechanism loads and transports the coal cut by the cutting mechanism onto the scraper conveyor through a low-profile, single-channel mechanism. However, the cut coal tends to scatter on both sides of the loading mechanism, making it difficult to load and transport efficiently. It also blocks the shearer's travel path, and single-channel loading is inefficient.

[0045] In view of this, the present application provides a transfer device for a coal mining machine, comprising: a shovel blade body, a crushing assembly, and a movable assembly. The crushing assembly is mounted on the shovel blade body and is used to crush coal. The movable assembly includes a first movable door plate and a second movable door plate, each rotatably mounted on opposite sides of the shovel blade body. The first movable door plate and the second movable door plate can be moved relatively apart or relatively close together to adjust the width of the shovel blade body. The two feed channels increase the transport channel compared to a single feed channel, improving transport efficiency. The relative distance between the first and second movable door plates facilitates expanding the width of the shovel blade body, allowing coal to fall into the shovel blade body and enter the feed channel through the star wheel assembly, preventing coal from scattering outside the shovel blade body and achieving efficient loading and unloading. The relative proximity of the first and second movable door plates facilitates reducing the width of the shovel blade body, allowing the coal mining machine to smoothly pass through the movable channel. Thus, the transfer device for a coal mining machine in the embodiments of the present application increases the transport channel, improves transport efficiency, and prevents coal from scattering outside the shovel blade body, achieving efficient loading and unloading.

[0046] The following combination Figures 1 to 2 The present application is described in detail with reference to the accompanying drawings and specific embodiments.

[0047] On the one hand, the present application provides a transfer device for a coal mining machine, including: a shovel board body 100, a crushing assembly 200 and a movable assembly 300; the crushing assembly 200 is arranged on the shovel board body 100, and the crushing assembly 200 is used to crush coal. The movable assembly 300 includes a first movable door plate 310 and a second movable door plate 320, and the first movable door plate 310 and the second movable door plate 320 are respectively rotated and arranged on opposite sides of the shovel board body 100; the first movable door plate 310 and the second movable door plate 320 are relatively far away or relatively close to adjust the width of the shovel board body 100.

[0048] The shovel plate body 100 has an open cavity, and the crushing assembly 200 is arranged in the open cavity. The crushing assembly 200 includes at least two positive star wheels 210 and at least two reverse star wheels 220. The positive star wheels 210 and the reverse star wheels 220 are arranged alternately and rotate relative to each other. For example, the positive star wheels 210 rotate in a clockwise direction, while the reverse star wheels 220 rotate in a clockwise direction. A feed channel 400 is provided between two adjacent positive star wheels 210 and reverse star wheels 220. Both the positive star wheels 210 and the reverse star wheels 220 are arranged at an angle. Coal falls into the open cavity, is driven by the positive star wheels 210 and the reverse star wheels 220, enters the feed channel 400, and finally falls into the scraper conveyor, thereby transporting the coal.

[0049] A telescopic member 330 is provided on the side of the shovel blade body 100 facing away from the crushing assembly 200. One end of the telescopic member 330 is connected to the shovel blade body 100, and the other end is connected to the movable assembly 300. This drives the movable assembly 300 to rotate relative to the shovel blade body 100, thereby expanding the range of the opening. The movable assembly 300 and the shovel blade body 100 enclose an opening.

[0050] The movable assembly 300 includes a first movable door panel 310 and a second movable door panel 320, which are rotatably arranged on opposite sides of the shovel blade body 100. The positive star wheel 210 and the reverse star wheel 220 are both located between the first movable door panel 310 and the second movable door panel 320. The first movable door panel 310 and the second movable door panel 320 each include an arc-shaped plate, a side panel, and a bottom panel. The sides of the arc-shaped plate are connected to the side panel, and the bottom of the arc-shaped plate and the bottom of the side panel are both connected to the bottom panel. The width of the bottom panel increases from facing toward the arc-shaped plate to facing away from the arc-shaped plate. For example, the bottom panel is trapezoidal in shape, and the arc-shaped plate, side panel, and bottom panel enclose an expansion cavity. A rib is also provided on the side of the side panel facing away from the arc-shaped plate. The rib extends outward away from the bottom panel to provide a certain degree of protection. The bottom panel is tilted, and the connection between the bottom panel and the rib is chamfered. The expansion cavities of the first movable door panel 310 and the second movable door panel 320 are arranged opposite to each other.

[0051] The shovel blade body 100 includes a base plate 110 and side plates 120. The side plates 120 are mounted on the base plate 110. A curved portion is provided on the side of the side plate 120 facing the first movable door plate 3100. The curved plate is located on the side of the curved portion facing away from the crushing assembly 200 and rotates relative to the curved portion. A telescopic member 330, one end of which is connected to the side plate 120 and the other end to the curved plate, drives the curved plate to move along its own extension direction, thereby causing the side plates to rotate relative to the side plates 120, moving the base plate closer to or further away from the base plate 110 to reduce or expand the capacity of the expansion chamber.

[0052] A feed channel 400 is provided between two adjacent positive star wheels 210 and reverse star wheels 220; the feed direction of the feed channel 400 is perpendicular to the arrangement direction of the positive star wheels 210 and reverse star wheels 220. It should be noted that the arrangement of the positive star wheels 210 and reverse star wheels 220 in the crushing assembly 200 can be set according to actual conditions, and the embodiment of the present application does not limit this. For example, a positive star wheel 210 and a reverse star wheel 220 form a group of star wheels, and a feed channel 400 is provided between the positive star wheel 210 and the reverse star wheel 220, and the two groups of star wheels are arranged on the shovel plate body 100 in sequence. For example, the positive star wheel 210, the feed channel 400, the reverse star wheel 220, the positive star wheel 210, the feed channel 400 and the reverse star wheel 220 are arranged in sequence. Two sets of counter-rotating star wheels are respectively arranged on both sides of the two feed channels 400. The star wheels counter-rotate and effectively push the materials to the loading feed channel 400 through the star wheel rake claws, and then transport them to the coal mining machine's first transport mechanism.

[0053] In some embodiments, the feed channel 400 is connected to the positive star wheel 210 and the reverse star wheel 220 respectively, and a material blocking plate is provided on the opposite sides of the feed channel 400 away from the positive star wheel 210 and the reverse star wheel 220. The height of the material blocking plate is greater than or equal to the height of the shovel plate body 100, and the material blocking plate is used to block coal.

[0054] The main star wheel 210 includes a mounting plate, a rotating shaft, and star wheel claws 221. The mounting plate is mounted on the shovel blade body 100, and the rotating shaft is mounted on the mounting plate. The star wheel claws 221 are mounted on the rotating shaft and rotate about the rotating shaft. The rotation of the star wheel claws 221 crushes the coal rock and rotates the crushed coal into the feed channel 400. The number of main star wheels 210 can be designed according to actual conditions and is not limited in this embodiment of the application.

[0055] The transfer device of the coal mining machine in the embodiment of the present application forms at least two feed channels 400 through two positive star wheels 210 and two reverse star wheels 220. Compared to a single feed channel 400, this increases the number of transport channels and improves transport efficiency. The first movable door plate 310 and the second movable door plate 320 are relatively far apart, which facilitates expanding the width of the shovel body 100, allowing coal to fall into the shovel body 100 and enter the feed channel 400 through the crushing assembly 200, thereby preventing coal from being scattered outside the shovel body 100 and achieving efficient transportation. The first movable door plate 310 and the second movable door plate 320 are relatively close together, which facilitates reducing the width of the shovel body 100 and allowing the coal mining machine to pass smoothly through the movable channel. Thus, the transfer device of the coal mining machine in the embodiment of the present application increases the number of transport channels, improves transport efficiency, and prevents coal from being scattered outside the shovel body 100, thereby achieving efficient transportation.

[0056] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application, the first movable door panel 310 and the second movable door panel 320 both include a rotating member 311 and a blocking member 312, the blocking member 312 is connected to the rotating member 311, the blocking member 312 is plugged into the base plate 110, and the rotating member 311 is hinged to the shovel plate body 100.

[0057] Specifically, the rotating member 311 comprises a curved plate, and the blocking member 312 comprises a side panel and a bottom panel. The sides of the curved plate are connected to the side panels, and the bottoms of the curved plate and the side panels are both connected to the bottom panel. The width of the bottom panel increases from facing toward the curved plate to facing away from the curved plate. For example, the bottom panel is trapezoidal in shape, and the curved plate, side panels, and bottom panel enclose an expansion cavity. A retaining edge is also provided on the side of the side panel facing away from the curved plate, extending outward away from the bottom panel to provide a certain degree of protection. The bottom panel is tilted, and the connection between the bottom panel and the retaining edge is chamfered. The expansion cavities of the first movable door panel 310 and the second movable door panel 320 are arranged opposite each other.

[0058] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application, the movable component 300 also includes a telescopic part 330, and the telescopic part 330 is arranged on the side of the shovel plate body 100 away from the crushing component 200. The telescopic part 330 has a fixed end and a movable end, the fixed end is connected to the shovel plate body 100, and the movable end is connected to the rotating part 311 of the first movable door panel 310 or the second movable door panel 320.

[0059] Specifically, the telescopic member 330 is disposed on a side of the blade body 100 facing away from the crushing assembly 200. The telescopic member 330 has a fixed end and a movable end. The fixed end is connected to the blade body 100, and the movable end is hingedly connected to the rotating member 311 of the first movable door panel 310 or the second movable door panel 320. For example, the telescopic member 330 may have one fixed end and two movable ends. One end of the telescopic member 330 is connected to the blade body 100, and the two movable ends are hingedly connected to the first movable door panel 310 and the second movable door panel 320, respectively. Alternatively, there may be two telescopic members 330, each of which is connected to the first movable door panel 310 and the second movable door panel 320, respectively.

[0060] In some embodiments, the telescopic member 330 is a telescopic cylinder. The first and second movable door panels 310, 320 are both hingedly connected to the blade body 100. The hinged fixed end of the telescopic cylinder is located at the rear of the blade body 100, while the hinged movable end of the telescopic cylinder is connected to the backs of the first and second movable door panels 310, 320. When the shearer is operating normally, extending the first and second movable door panels 310, 320 enables full-width loading, effectively handling materials that have fallen to either side of the loading mechanism. When the shearer is not in operation, the shearer can be kept at the same width as existing loading devices, without affecting the normal operation of the shearer.

[0061] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application, the shovel plate body 100 includes a bottom plate 110 and a side plate 120, the side plate 120 is arranged on the bottom plate 110, the side plate 120 and the bottom plate 110 are arranged to form an installation cavity, the crushing assembly 200 is arranged in the installation cavity, and is connected to the bottom plate 110.

[0062] The side panel 120 facing the first movable door panel 3100 is provided with an arc-shaped portion. The arc-shaped plate is located on the side of the arc-shaped portion facing away from the crushing assembly 200 and rotates relative to the arc-shaped portion. A telescopic member 330 is connected to the side panel 120 at one end and to the arc-shaped plate at the other end. The telescopic member 330 drives the arc-shaped plate to move along its own extension direction, thereby causing the side panel to rotate relative to the side panel 120, and the bottom panel to move closer to or farther from the bottom panel 110, thereby narrowing or expanding the accommodation range of the expansion chamber.

[0063] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application has a scraper chain 410 and a guide wheel 420 in the feed channel 400, the guide wheel 420 is arranged on the feed channel 400, and the scraper chain 410 is arranged along the feed direction of the feed channel 400.

[0064] It should be noted that a guide wheel 420 is further provided in the feed channel 400, and the guide wheel 420 is used to change the movement direction of the coal so that its movement direction is consistent with the feeding direction of the feed channel 400. The feed channel 400 includes a scraper chain 410, which is used to transport coal.

[0065] In one possible implementation, the coal mining machine transfer device provided in an embodiment of the present application further includes a spray assembly 500, which is disposed on top of the shovel blade body 100 and faces the crushing assembly 200. The spray assembly 500 is disposed above the side panel 120 of the shovel blade body 100, with the outlet of the spray assembly 500 facing the crushing assembly 200. The spray assembly 500 uses spray dust reduction to effectively reduce dust obstruction to the construction workers' vision, thereby improving coal mining efficiency, ensuring project progress, and ensuring healthy operation for the operators.

[0066] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application includes multiple spray assemblies 500, each of which is provided in a one-to-one correspondence with the main star wheel 210 or the reverse star wheel 220. Specifically, the spray assemblies 500 can be provided according to the number of main star wheels 210 or the reverse star wheels 220. For example, when there are four main star wheels 210 and four reverse star wheels 220, the number of spray assemblies 500 is also four. The spray assembly 500 can effectively reduce the obstruction of dust on the vision of construction workers through spray dust reduction, improve coal mining efficiency, ensure project progress, and achieve healthy operation for operators.

[0067] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application includes a limit assembly 600, which is arranged on the side of the shovel plate body 100 facing the crushing assembly 200. One end of the limit assembly 600 is connected to the first movable door plate 310 or the second movable door plate 320, and the other end is connected to the shovel plate body 100.

[0068] The limiting assembly 600 is a limiting chain, one end of which is connected to the first movable door panel 310 or the second movable door panel 320, and the other end is connected to the shovel body 100. There are two limiting chains, each connected to the first movable door panel 310 and the second movable door panel 320 respectively.

[0069] In one possible implementation, the transfer device of the coal mining machine provided in the embodiment of the present application, the crushing assembly 200 includes at least two positive star wheels 210 and at least two reverse star wheels 220, the positive star wheels 210 and the reverse star wheels 220 are arranged on the shovel plate body 100 in an alternating rotation manner, and a feed channel 400 is arranged between the two adjacent positive star wheels 210 and reverse star wheels 220; the positive star wheels 210 and the reverse star wheels 220 both have star wheel rake claws 221, and the star wheel rake claws 221 are arranged on the shovel plate body 100 in an rotatable manner around the axis of the positive star wheel 210 or the reverse star wheel 220, and the rotation directions of the star wheel rake claws 221 of the two adjacent positive star wheels 210 and reverse star wheels 220 are opposite to drive the coal into the feed channel 400.

[0070] Specifically, a gap is provided between the star wheel claws 221 of two adjacent positive star wheels 210 and counter star wheels 220. The feed channel 400 is located between the star wheel claws 221 of the two star wheels. There are multiple star wheel claws 221, which are spaced apart around the axis of the positive star wheel 210 or the counter star wheel 220.

[0071] On the other hand, the present application provides a coal mining machine comprising a loading mechanism and a transfer device for the coal mining machine according to any one of the above embodiments arranged on the loading mechanism.

[0072] Specifically, the shearer includes a loading mechanism, a cutting mechanism, a traveling mechanism, a hydraulic mechanism, and a scraper conveyor. The loading mechanism loads and transports the coal cut by the cutting mechanism onto the scraper conveyor. The shearer can be a drum-type shearer, where the cutting is performed by rotating picks on a drum, a planer-type shearer, where the planer is cut by a planer head, or a saw-type shearer, where picks mounted on a cyclically moving shear chain penetrate the coal wall to cut the coal. This embodiment of the present application does not impose any restrictions on this.

[0073] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0074] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A transfer device for a coal mining machine, characterized in that: include: A shovel plate body (100), a crushing assembly (200) and a movable assembly (300); The crushing assembly (200) is arranged on the shovel plate body (100), the crushing assembly (200) is used to crush coal, and the crushing assembly (200) has at least two feeding channels (400); The movable assembly (300) comprises a first movable door plate (310) and a second movable door plate (320), wherein the first movable door plate (310) and the second movable door plate (320) are respectively rotatably arranged on two opposite sides of the shovel plate body (100); The first movable door plate (310) and the second movable door plate (320) are relatively far away from or relatively close to each other so as to adjust the width of the shovel plate body (100).

2. The transfer device of the coal mining machine according to claim 1, characterized in that: The first movable door panel (310) and the second movable door panel (320) both include a rotating member (311) and a blocking member (312), wherein the blocking member (312) is connected to the rotating member (311), the blocking member (312) is plugged into the shovel plate body (100), and the rotating member (311) is hinged to the shovel plate body (100).

3. The transfer device of the coal mining machine according to claim 2, characterized in that: The movable assembly (300) further includes a telescopic member (330), the telescopic member (330) being arranged on a side of the shovel plate body (100) facing away from the crushing assembly (200), the telescopic member (330) having a fixed end and a movable end, the fixed end being connected to the shovel plate body (100), and the movable end being connected to the rotating member (311) of the first movable door panel (310) or the second movable door panel (320).

4. The transfer device for a coal mining machine according to claim 3, characterized in that: The shovel plate body (100) includes a bottom plate (110) and a side plate (120), wherein the side plate (120) is arranged on the bottom plate (110), and the side plate (120) and the bottom plate (110) enclose an installation cavity, and the crushing assembly (200) is arranged in the installation cavity and connected to the bottom plate (110).

5. The transfer device for a coal mining machine according to any one of claims 1 to 4, characterized in that: A scraper chain (410) and a guide wheel (420) are provided in the feed channel (400); the guide wheel (420) is arranged on the feed channel (400); and the scraper chain (410) is arranged along the feed direction of the feed channel (400).

6. The transfer device for a coal mining machine according to any one of claims 1 to 4, characterized in that: The invention also includes a spray assembly (500), wherein the spray assembly (500) is arranged on the top of the shovel blade body (100) and faces the crushing assembly (200).

7. The transfer device for a coal mining machine according to claim 6, characterized in that: There are multiple spray assemblies (500), and each spray assembly (500) is arranged corresponding to the crushing assembly (200).

8. The transfer device for a coal mining machine according to any one of claims 1 to 4, characterized in that: The invention also includes a limiting assembly (600), which is arranged on a side of the shovel plate body (100) facing the crushing assembly (200), one end of the limiting assembly (600) is connected to the first movable door plate (310) or the second movable door plate (320), and the other end is connected to the shovel plate body (100).

9. The transfer device for a coal mining machine according to any one of claims 1 to 4, characterized in that: The crushing assembly (200) comprises at least two positive star wheels (210) and at least two reverse star wheels (220), wherein the positive star wheels (210) and the reverse star wheels (220) are arranged on the shovel plate body (100) to rotate alternately at intervals, and a feed channel (400) is provided between two adjacent positive star wheels (210) and the reverse star wheels (220); The positive star wheel (210) and the counter star wheel (220) both have star wheel claws (221), and the star wheel claws (221) are rotatably arranged on the shovel plate body (100) around the axis of the positive star wheel (210) or the counter star wheel (220). The star wheel claws (221) of two adjacent positive star wheels (210) and the counter star wheels (220) rotate in opposite directions to drive coal into the feed channel (400).

10. A coal mining machine, characterized in that: The transfer device of the coal mining machine comprises a loading mechanism and the transfer device according to any one of claims 1 to 9 arranged on the loading mechanism.

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