Coal blocking mechanism of coal mining machine

Abstract

The utility model discloses a coal blocking mechanism of a coal mining machine, the coal blocking mechanism of the coal mining machine comprises a middle baffle plate, the two sides of the middle baffle plate are rotatably connected with lateral shielding parts, and the lateral shielding parts can be telescopically adjusted; the surface cleaning part is fixedly arranged on the outer wall of the lateral shielding part; a buffer part; the device is suitable for the coal mining machine to shield coal briquettes and has an adjusting function, the unfolding angle and range can be adjusted according to the coal mining environment, a cleaning structure is further introduced, the surface of the shielding structure can be automatically cleaned through the cleaning structure during adjustment, and the working efficiency is improved. The coal briquette shielding structure has the advantages that the coal briquette shielding structure is simple in structure and convenient to use, the problem of adjustment jamming caused by adhesion of a large number of coal briquettes is avoided, a certain buffering protection function can be achieved through the buffering part, impact force of collision is reduced when the coal briquettes collide with the surface of the shielding structure, and accordingly bending caused by collision is avoided after long-time use.

Description

Technical Field

[0001] The present application relates to the technical field of coal mining machines, and in particular to a coal blocking mechanism of a coal mining machine. Background Art

[0002] Coal mining machine is one of the main equipment of comprehensive mining equipment, which has evolved from coal cutting machine. Coal mining machine is a large and complex system integrating mechanical, electrical and hydraulic functions, mainly used for coal mining. Its working principle is to use mechanical force and pressure to peel, crush and transport coal and rock. In the process of using coal mining machine, corresponding coal blocking mechanism is needed.

[0003] The existing patent document "CN220621844U A coal blocking mechanism for a coal mining machine" discloses a coal blocking mechanism. Although this coal blocking mechanism can be set at the coal mining machine to block the coal, after a long period of blocking, coal powder particles are attached to the blocking structure, thereby causing a jamming phenomenon when the blocking structure is telescopically adjusted. In addition, long-term blocking may cause collision with coal blocks and cause impact damage.

[0004] That is, the prior art has the following technical problem: after long-term use of the common coal blocking mechanism, coal powder particles are easily attached to the surface. Therefore, a coal blocking mechanism for a coal mining machine is proposed to solve the above problem. Summary of the invention

[0005] In this embodiment, a coal blocking mechanism of a coal mining machine is provided to solve the problem that coal powder particles are easily attached to the surface of ordinary coal blocking mechanisms in the prior art after long-term use.

[0006] According to one aspect of the present application, a coal blocking mechanism of a coal shearer is provided, and the coal blocking mechanism of the coal shearer comprises:

[0007] A middle baffle, both sides of which are rotatably connected to lateral shielding components, and the lateral shielding components are telescopically adjustable;

[0008] A surface cleaning component, wherein the surface cleaning component is fixedly arranged on the outer wall of the lateral shielding component, and the surface cleaning component can clean dust and foreign matter on the surface when the lateral shielding component is adjusted;

[0009] A buffer portion, the buffer portion being arranged at the lateral shielding component;

[0010] The support adjustment component is fixedly arranged between the middle baffle plate and the bottom surface of the lateral shielding component, and the support adjustment component can be telescopically adjusted to adjust the deployment angle of the lateral shielding component.

[0011] Furthermore, the lateral shielding component includes a first shielding plate, a second shielding plate, a positioning seat, a threaded rod and a servo motor. The first shielding plate and the middle shielding plate are rotatably connected through a pin shaft. The first shielding plate and the second shielding plate are both provided with an inner cavity, and the first shielding plate and the second shielding plate are slidingly fitted together.

[0012] Furthermore, a positioning seat is fixedly provided in the inner cavity of the second baffle plate, a servo motor is fixedly connected to the inner cavity of the first baffle plate, one end of a threaded rod is fixedly connected to the end of the output shaft of the servo motor, and the other end of the threaded rod passes through the positioning seat and is threadedly engaged with the positioning seat.

[0013] Furthermore, the surface cleaning component includes a guide connecting rod, a movable piston, a fixed cylinder, a rectangular fixed shell and an air jet hole. The rectangular fixed shell is fixedly arranged on the upper surface of the lateral shielding component, an inner cavity is arranged inside the rectangular fixed shell, and a plurality of air jet holes are arranged on the side wall of the inner cavity of the rectangular fixed shell.

[0014] Furthermore, there are several fixed cylinders, and several of the fixed cylinders are fixed in the inner cavity of the first baffle plate. A movable piston is slidably arranged in the inner cavity of several of the fixed cylinders. One end of a guide connecting rod is fixedly connected to one side of the movable piston, and the other end of the guide connecting rod passes through the upper wall of the fixed cylinder and extends outside the wall. One end of the guide connecting rod is fixedly connected to the inner wall of the second baffle plate, and one end of a hose is fixedly connected to the inner cavity of the fixed cylinder, and the other end of the hose is fixedly connected to the inner cavity of the rectangular fixed shell.

[0015] Furthermore, the buffer part includes a buffer baffle, a support spring and a fixed shaft, a plurality of grooves are arranged on the upper surface of the second baffle plate, a bevel is arranged at the front end of the second baffle plate, a fixed shaft is arranged on the inner wall of the groove, and the buffer baffle is rotatably connected to the fixed shaft.

[0016] Furthermore, one end of a support spring is fixedly connected to the bottom surface of the buffer baffle, and the other end of the support spring is fixedly connected to the bottom surface of the groove.

[0017] Furthermore, the supporting and adjusting component includes a fixed bracket, a cylinder, a connecting ear bracket A, a connecting plate bracket, a connecting ear bracket B and a connecting sleeve, the bottom surface of the fixed bracket is fixedly connected to the connecting sleeve, the upper surface of the fixed bracket is fixedly connected to one end of the cylinder, and the other end of the cylinder is fixedly connected to the bottom surface of the middle baffle.

[0018] Furthermore, connecting ear frames A are fixedly provided on both sides of the fixed bracket, and one end of the connecting plate frame is rotatably connected to the connecting ear frame A, and the other end of the connecting plate frame is rotatably connected to the connecting ear frame B, and the connecting ear frame B is fixedly connected to the bottom surface of the lateral shielding component.

[0019] The above-mentioned embodiments of the present application are suitable for coal mining machines to shield coal blocks. The present application has an adjustment function, and the expansion angle and range can be adjusted according to the coal mining environment. Further, the present application introduces a cleaning structure, and the cleaning structure can automatically clean the surface of the shielding structure during adjustment, thereby avoiding the problem of adjustment jamming caused by a large amount of coal blocks adhering. At the same time, there is a buffer part, which can play a certain buffering and protection function. When the coal block collides with the surface of the shielding structure, the impact force of the impact is reduced, thereby avoiding bending caused by the impact after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0022] Figure 2 This is a front structural schematic diagram of an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the side structure of an embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of the internal structure of a lateral shielding component according to an embodiment of the present application;

[0025] Figure 5 This is a schematic structural diagram of a buffer portion according to an embodiment of the present application;

[0026] Figure 6 This is a schematic structural diagram of a support and adjustment component according to an embodiment of the present application.

[0027] In the figure:

[0028] Middle baffle 1,

[0029] Lateral shielding component 2, first shielding plate 201, second shielding plate 202, groove 2021, bevel 2022, positioning seat 203, threaded rod 204, servo motor 205;

[0030] Surface cleaning component 3, guide connecting rod 301, movable piston 302, fixed cylinder 303, rectangular fixed shell 304, air injection hole 305

[0031] Buffer part 4, buffer baffle 401, support spring 402, fixed shaft 403;

[0032] Support and adjust component 5, fixed bracket 501, cylinder 502, connecting ear bracket A503, connecting plate bracket 504, connecting ear bracket B505, and connecting sleeve 506. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0034] 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 sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0036] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0037] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] See also Figure 1-6 As shown, the coal blocking mechanism of the coal shearer comprises:

[0039] A middle baffle 1, both sides of which are rotatably connected to lateral shielding components 2, and the lateral shielding components 2 are telescopically adjustable;

[0040] A surface cleaning component 3, wherein the surface cleaning component 3 is fixedly arranged on the outer wall of the lateral shielding component 2, and the surface cleaning component 3 can clean dust and foreign matter on the surface when the lateral shielding component 2 is adjusted;

[0041] A buffer portion 4, wherein the buffer portion 4 is arranged at the lateral shielding component 2;

[0042] A support adjustment component 5, wherein the support adjustment component 5 is fixedly disposed between the middle baffle 1 and the bottom surface of the lateral shielding component 2, and the support adjustment component 5 can be telescopically adjusted to adjust the deployment angle of the lateral shielding component 2;

[0043] Through the above technical solution, the cleaning structure can automatically clean the surface of the shielding structure during adjustment, thereby avoiding the problem of adjustment jamming caused by a large amount of coal blocks adhering. At the same time, there is a buffer part 4, which can play a certain buffering and protection function. When the coal blocks collide with the surface of the shielding structure, the impact force of the collision is reduced, thereby avoiding bending caused by the collision after long-term use.

[0044] The lateral shielding component 2 includes a first shielding plate 201, a second shielding plate 202, a positioning seat 203, a threaded rod 204 and a servo motor 205. The first shielding plate 201 is rotatably connected to the middle shielding plate 1 through a pin shaft. The first shielding plate 201 and the second shielding plate 202 are both provided with inner cavities, and the first shielding plate 201 and the second shielding plate 202 are slidably matched with each other.

[0045] A positioning seat 203 is fixedly provided in the inner cavity of the second shielding plate 202, and a servo motor 205 is fixedly connected to the inner cavity of the first shielding plate 201. One end of a threaded rod 204 is fixedly connected to the end of the output shaft of the servo motor 205, and the other end of the threaded rod 204 passes through the positioning seat 203 and is threadedly matched with the positioning seat 203. Through the above technical solution, when it is necessary to adjust the unfolded length of the lateral shielding component 2, the threaded rod 204 can be driven to rotate by the operation of the servo motor 205, so that the positioning seat 203 is driven to move by the rotation of the threaded rod 204, and then the second shielding plate 202 is further driven to move, so as to realize the telescopic adjustment function of the second shielding plate 202;

[0046] The surface cleaning component 3 includes a guide connecting rod 301, a movable piston 302, a fixed cylinder 303, a rectangular fixed shell 304 and an air injection hole 305. The rectangular fixed shell 304 is fixedly arranged on the upper surface of the lateral shielding component 2. An inner cavity is arranged inside the rectangular fixed shell 304. A plurality of air injection holes 305 are arranged on the side wall of the inner cavity of the rectangular fixed shell 304.

[0047] There are several fixed cylinders 303, and several of the fixed cylinders 303 are fixed in the inner cavity of the first baffle plate 201. A movable piston 302 is slidably arranged in the inner cavity of several of the fixed cylinders 303. One end of the guide connecting rod 301 is fixedly connected to one side of the movable piston 302. The other end of the guide connecting rod 301 passes through the upper wall of the fixed cylinder 303 and extends outside the wall. One end of the guide connecting rod 301 is fixedly connected to the inner wall of the second baffle plate 202. One end of the hose is fixedly connected to the inner cavity of the fixed cylinder 303. The other end of the hose is fixedly connected to the inner cavity of the rectangular fixed shell 304. Through the above technical solution, during the movement and extension of the second shielding plate 202, the guide connecting rod 301 can be automatically pushed to move, so that the movement of the guide connecting rod 301 can drive the moving piston 302 to move, so that the moving piston 302 moves in the inner cavity of the fixed cylinder 303, so that the gas in the inner cavity of the fixed cylinder 303 is transported to the rectangular fixed shell 304, and then sprayed out through the jet hole 305 to clean the coal blocks on the surface of the lateral shielding component 2;

[0048] The buffer portion 4 includes a buffer baffle 401, a support spring 402 and a fixed shaft 403. A plurality of grooves 2021 are provided on the upper surface of the second shielding plate 202. A bevel 2022 is provided at the front end of the second shielding plate 202. A fixed shaft 403 is provided on the inner wall of the groove 2021. The buffer baffle 401 is rotatably connected to the fixed shaft 403.

[0049] One end of the support spring 402 is fixedly connected to the bottom surface of the buffer baffle 401, and the other end of the support spring 402 is fixedly connected to the bottom surface of the groove 2021. Through the above technical solution, when the second shielding plate 202 encounters a coal block collision, the buffer baffle 401 can play a protective buffering role when the coal block hits, reduce the impact of the impact on the second shielding plate 202, and play a protective role;

[0050] The support adjustment component 5 includes a fixed bracket 501, a cylinder 502, a connecting ear bracket A503, a connecting plate bracket 504, a connecting ear bracket B505 and a connecting sleeve 506. The bottom surface of the fixed bracket 501 is fixedly connected with the connecting sleeve 506, the upper surface of the fixed bracket 501 is fixedly connected with one end of the cylinder 502, and the other end of the cylinder 502 is fixedly connected to the bottom surface of the middle baffle 1;

[0051] Connecting ear frames A503 are fixedly provided on both sides of the fixed bracket 501, and one end of the connecting plate frame 504 is rotatably connected to the connecting ear frame A503, and the other end of the connecting plate frame 504 is rotatably connected to the connecting ear frame B505, and the connecting ear frame B505 is fixedly connected to the bottom surface of the lateral shielding component 2. The distance between the middle baffle 1 and the fixed bracket 501 can be adjusted by the extension and retraction of the cylinder 502, thereby driving the connecting plate frame 504 to perform angular rotation, thereby driving the lateral shielding component 2 to perform angular rotation, and adjusting the inclination angle of the lateral shielding component 2, thereby adjusting the shielding position range.

[0052] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The coal blocking mechanism of the coal mining machine is characterized by: The coal blocking mechanism of the coal mining machine comprises: A middle baffle (1), wherein both sides of the middle baffle (1) are rotatably connected to lateral shielding components (2), and the lateral shielding components (2) are telescopically adjustable; A surface cleaning component (3), wherein the surface cleaning component (3) is fixedly arranged on the outer wall of the lateral shielding component (2), and the surface cleaning component (3) can clean dust and foreign matter on the surface when the lateral shielding component (2) is adjusted; A buffer portion (4), wherein the buffer portion (4) is arranged at the lateral shielding component (2); A support adjustment component (5) is fixedly arranged between the middle baffle plate (1) and the bottom surface of the lateral shielding component (2), and the support adjustment component (5) can be telescopically adjusted to adjust the deployment angle of the lateral shielding component (2).

2. The coal blocking mechanism of the coal mining machine according to claim 1, characterized in that: The lateral shielding component (2) comprises a first shielding plate (201), a second shielding plate (202), a positioning seat (203), a threaded rod (204) and a servo motor (205); the first shielding plate (201) is rotatably connected to the middle shielding plate (1) via a pin shaft; the first shielding plate (201) and the second shielding plate (202) are both provided with inner cavities; the first shielding plate (201) and the second shielding plate (202) are slidably matched.

3. The coal blocking mechanism of the coal mining machine according to claim 2 is characterized in that: A positioning seat (203) is fixedly arranged in the inner cavity of the second baffle plate (202), a servo motor (205) is fixedly connected in the inner cavity of the first baffle plate (201), one end of a threaded rod (204) is fixedly connected to the end of the output shaft of the servo motor (205), and the other end of the threaded rod (204) passes through the positioning seat (203) and is threadedly matched with the positioning seat (203).

4. The coal blocking mechanism of the coal mining machine according to claim 1, characterized in that: The surface cleaning component (3) comprises a guide connecting rod (301), a movable piston (302), a fixed cylinder (303), a rectangular fixed shell (304) and an air injection hole (305); the rectangular fixed shell (304) is fixedly arranged on the upper surface of the lateral shielding component (2); an inner cavity is arranged inside the rectangular fixed shell (304); and a plurality of air injection holes (305) are arranged on the side wall of the inner cavity of the rectangular fixed shell (304).

5. The coal blocking mechanism of the coal mining machine according to claim 4, characterized in that: A plurality of the fixed cylinders (303) are provided, and the plurality of the fixed cylinders (303) are fixed in the inner cavity of the first baffle plate (201); a movable piston (302) is slidably provided in the inner cavity of the plurality of the fixed cylinders (303); one end of a guide connecting rod (301) is fixedly connected to one side of the movable piston (302); the other end of the guide connecting rod (301) passes through the upper wall of the fixed cylinder (303) and extends outside the wall; one end of the guide connecting rod (301) is fixedly connected to the inner wall of the second baffle plate (202); one end of a hose is fixedly connected to the inner cavity of the fixed cylinder (303); the other end of the hose is fixedly connected to the inner cavity of the rectangular fixed shell (304).

6. The coal blocking mechanism of the coal mining machine according to claim 1, characterized in that: The buffer portion (4) comprises a buffer baffle (401), a support spring (402) and a fixed shaft (403); a plurality of grooves (2021) are arranged on the upper surface of the second shielding plate (202); a bevel (2022) is arranged at the front end of the second shielding plate (202); a fixed shaft (403) is arranged on the inner wall of the groove (2021); and the buffer baffle (401) is rotatably connected to the fixed shaft (403).

7. The coal blocking mechanism of the coal mining machine according to claim 6, characterized in that: One end of a support spring (402) is fixedly connected to the bottom surface of the buffer baffle (401), and the other end of the support spring (402) is fixedly connected to the bottom surface of the groove (2021).

8. The coal blocking mechanism of the coal mining machine according to claim 1, characterized in that: The support adjustment component (5) comprises a fixed bracket (501), a cylinder (502), a connecting ear bracket A (503), a connecting plate bracket (504), a connecting ear bracket B (505) and a connecting sleeve (506); the bottom surface of the fixed bracket (501) is fixedly connected to the connecting sleeve (506); the upper surface of the fixed bracket (501) is fixedly connected to one end of the cylinder (502); and the other end of the cylinder (502) is fixedly connected to the bottom surface of the middle baffle (1).

9. The coal blocking mechanism of the coal mining machine according to claim 8, characterized in that: Connecting ear frames A (503) are fixedly provided on both sides of the fixed bracket (501), and one end of a connecting plate frame (504) is rotatably connected to the connecting ear frame A (503), and the other end of the connecting plate frame (504) is rotatably connected to a connecting ear frame B (505).

10. The coal blocking mechanism of the coal mining machine according to claim 9, characterized in that: The connecting ear frame B (505) is fixedly connected to the bottom surface of the lateral shielding component (2).

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