A coal mine heading machine loading shovel plate

Abstract

The utility model discloses a kind of coal mine tunneling machine loading shovel plate, including shovel body, cavity is equipped in shovel body, cavity bottom opening, opening is equipped with bottom cover;Shovel body upper surface is equipped with conveying groove, conveying groove bottom is located in cavity, driving shaft and driven shaft are equipped in conveying groove, driving shaft and driven shaft are commonly connected with conveyer belt, conveying motor is equipped in cavity, the axle of conveying motor is connected with driving shaft. Coal block on shovel plate is conveyed to the transport device behind tunneling machine by driving shaft and conveyer belt, to realize the purpose of improving coal block conveying efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mine tunneling equipment, and in particular relates to a loading shovel plate for a coal mine tunneling machine. Background Technology

[0002] In coal mine tunneling operations, the tunneling machine uses a rotating cutting head to precisely crush the coal or rock mass at the working face, and then uses a shovel to collect and transport the coal blocks.

[0003] Chinese utility model patent CN214499057U discloses a coal mine tunneling shovel, including a shovel with a soil inlet groove on its surface. An adjusting plate is provided on one side of the soil inlet groove, and an adjusting spring is fixedly connected to one side of the adjusting plate. A baffle is provided on one side of the adjusting spring, and a locking block is fixedly connected to the surface of the baffle. A matching locking block is movably connected to the surface of the locking block. This coal mine tunneling shovel, through the setting of the adjusting plate, adjusting spring, and baffle, avoids the adjusting spring from generating a counteracting force when the device is tunneling downwards, thus achieving the purpose of shock absorption and protecting the device body.

[0004] In this traditional method, the coal blocks are pushed backward by the tunneling machine, causing them to fall into the feed chute. As the tunneling machine continues to advance, the coal blocks are continuously pushed backward, eventually falling from the feed chute onto the transport device behind the tunneling machine. However, in this compression conveying method, the coal conveying speed depends entirely on the tunneling machine's forward speed. Since the tunneling machine also has to break up the coal mine rock mass, its movement speed is slow. This limits the conveying efficiency of the compression conveying method and reduces the coal conveying efficiency. Therefore, a coal mine tunneling machine with a high coal conveying efficiency is needed. Utility Model Content

[0005] The purpose of this invention is to improve the efficiency of coal conveying by using a drive shaft to drive a conveyor belt to transport coal blocks on a shovel to a transport device behind the tunneling machine. This addresses the problem in the aforementioned extrusion conveying method, where the coal conveying speed depends entirely on the tunneling machine's propulsion speed. Furthermore, the tunneling machine is responsible for crushing the coal mine rock, resulting in slow movement and limited efficiency.

[0006] The specific technical solution of this utility model is as follows: A loading shovel for a coal mine tunneling machine includes a shovel body with a cavity inside. The cavity has an opening at the bottom and a bottom cover is provided at the opening. A conveying groove is provided on the upper surface of the shovel body. The bottom of the conveying groove is located inside the cavity. A drive shaft and a driven shaft are provided inside the conveying groove. The drive shaft and the driven shaft are connected to a conveyor belt. A conveyor motor is provided inside the cavity, and the shaft of the conveyor motor is connected to the drive shaft.

[0007] Furthermore, the inner surfaces on both sides of the conveying groove are provided with a shaft hole one for the drive shaft and a shaft hole two for the driven shaft. The conveying motor is installed in the cavity, and the shaft of the conveying motor is connected to the drive shaft through a coupling.

[0008] Furthermore, the rear of the shovel body is provided with a clearance slot that is adapted to the conveying groove, and the bottom surface of the clearance slot is a downward curved arc surface.

[0009] Furthermore, the working surface array of the conveyor belt is provided with several protrusions, the cross-section of which is rectangular, and the long side of the protrusion is perpendicular to the conveying direction of the conveyor belt.

[0010] Furthermore, two shaft holes are provided opposite each other on the upper surface of the shovel body. The two shaft holes are located on both sides of the conveying groove. A shaft is installed in the shaft hole. An impeller is provided at the top of the shaft. Several blade teeth are arranged in a circumferential array on the side surface of the impeller. A drive motor is installed in the cavity. The drive motor drives the shaft to rotate.

[0011] Furthermore, the rotation direction of the two impellers is adapted to the conveying direction of the conveyor belt.

[0012] Furthermore, the blade teeth have an arc-shaped protrusion on one side of the vertical surface along the impeller rotation direction.

[0013] Furthermore, the upper surface of the shovel is an inclined surface, and the inclination height of the inclined surface gradually increases from the front end of the shovel to the rear.

[0014] Furthermore, baffles are provided on the upper surface of the shovel body and near the sides.

[0015] Furthermore, a connector is provided on the rear facade of the shovel body. The connector includes oppositely arranged connecting ears, and a hinge rod is connected between the two connecting ears.

[0016] Compared with the prior art, the present invention has the following beneficial effects: When the tunneling machine is in operation, the conveyor motor is started, which drives the drive shaft to rotate. The drive shaft, driven shaft and conveyor belt form a conveying mechanism to transport the coal blocks on the shovel to the transport equipment behind the tunneling machine. Compared with the compression conveying method, this greatly improves the coal block conveying efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is an exploded view of the assembly of the shovel body and the bottom cover in an embodiment of this utility model; Figure 3 This is an assembly diagram of the drive shaft, driven shaft, and conveyor belt in an embodiment of this utility model; Figure 4 This is a three-dimensional schematic diagram of the rear structure of the shovel body in an embodiment of this utility model; Figure 5 This is a three-dimensional structural diagram of the impeller in an embodiment of the present utility model; Figure label: 1. Shovel body; 11. Cavity; 12. Conveying groove; 121. Shaft hole one; 122. Shaft hole two; 13. Alternating groove; 131. Arc surface; 14. Shaft hole three; 15. Baffle; 16. Connecting piece; 161. Connecting ear; 162. Hinge rod; 2. Bottom cover; 3. Conveyor motor; 31. Drive shaft; 32. Driven shaft; 33. Conveyor belt; 331. Protrusion; 4. Shaft; 41. Impeller; 411. Blade teeth; 4111. Arc-shaped protrusion; 5. Drive motor. Detailed Implementation

[0018] To better understand the purpose, structure, and function of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0019] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to 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 should not be construed as a limitation of this utility model.

[0020] See Figures 1 to 5 This embodiment discloses a loading shovel for a coal mine tunneling machine, including a shovel body 1. The shovel body 1 has an internal cavity 11 with an opening at the bottom. A bottom cover 2 is fitted at the opening and is connected to the bottom surface of the shovel body 1 by mounting bolts. The opening at the bottom of the cavity 11 facilitates the installation, maintenance, and replacement of components within the cavity 11. The bottom cover 2 prevents coal from entering the cavity 11 and protects the internal components. A conveying groove 12 is provided on the upper surface of the shovel body 1, with its bottom located within the cavity 11. The cavity 11 is rotatably connected to a drive shaft 31 and a driven shaft 32. The drive shaft 31 and the driven shaft 32 are connected to a conveyor belt 33. A conveyor motor 3 is installed in the cavity 11. The shaft of the conveyor motor 3 is connected to the drive shaft 31. When the tunneling machine is working, the conveyor motor 3 is started, and the conveyor motor 3 drives the drive shaft 31 to rotate. The drive shaft 31, the driven shaft 32 and the conveyor belt 33 form a conveying mechanism to transport the coal blocks on the shovel to the transport equipment behind the tunneling machine. Compared with the compression conveying method, the coal block conveying efficiency is greatly improved.

[0021] The inner surfaces on both sides of the conveying groove 12 are provided with a shaft hole 121 for the drive shaft 31 and a shaft hole 122 for the driven shaft 32. The drive shaft 31 is rotatably connected to the conveying groove 12 by engaging with the shaft hole of the shaft hole 121, and the driven shaft 32 is rotatably connected to the conveying groove 12 by engaging with the shaft hole of the shaft hole 122. It can be further optimized that the drive shaft 31 and the shaft hole 121, as well as the driven shaft 32 and the shaft hole 122, are connected by bearings. The conveying motor 3 is installed in the cavity 11, and the shaft of the conveying motor 3 is connected to the drive shaft 31 by a coupling.

[0022] The rear of the shovel body 1 is provided with a clearance slot 13 that is adapted to the conveying groove 12. The bottom surface of the clearance slot 13 is a downward curved arc surface 131, which facilitates the sliding of coal blocks.

[0023] The working face array of the conveyor belt 33 is provided with several protrusions 331. The cross-section of the protrusions 331 is rectangular. The long side of the protrusions 331 is perpendicular to the conveying direction of the conveyor belt 33. The protrusions 331 improve the gripping force of the working face of the conveyor belt 33 on the coal block and can guide the coal block to move towards the rear of the conveyor belt 33.

[0024] Two shaft holes 14 are located opposite each other on the upper surface of the shovel body 1. The two shaft holes 14 are located on both sides of the conveying groove 12. A shaft 4 is installed in the shaft hole 14. It can be further optimized that the shaft 4 and the shaft hole 14 are connected by a bearing. An impeller 41 is provided on the top of the shaft 4. It can be further optimized that the shaft 4 and the impeller 41 are keyed. Several blade teeth 411 are arranged in a circumferential ring on the side of the impeller 41. A drive motor 5 is provided in the cavity 11. The drive motor 5 drives the shaft 4 to rotate. Starting the drive motor 5 drives the impeller 41 to rotate. The rotation direction of the two impellers 41 is adapted to the conveying direction of the conveyor belt 33. When the impeller 41 rotates, it sweeps the coal blocks into the conveying groove 12 through the blade teeth 411. Impellers 41 are set on both sides of the conveying groove 12. When the two impellers 41 rotate, they can crush the larger coal blocks. The crushed coal blocks can then easily fall into the conveying groove 12.

[0025] On one side of the blade tooth 411 along the rotation direction of the impeller 41, i.e. the pressure surface of the blade tooth 411, there is an arc-shaped protrusion 4111. The arc-shaped protrusion 4111 can prevent the blade tooth 411 from sweeping away the coal block above the conveyor belt 33 when it rotates, and can also prevent the blade tooth 411 from being stuck by the coal block when it rotates.

[0026] The upper surface of the shovel body 1 is an inclined surface, and the inclination height of the inclined surface gradually increases from the front end of the shovel body 1 to the rear, which facilitates the forward movement of the shovel body 1 with the tunneling machine.

[0027] Baffles 15 are provided on the upper surface of the shovel body 1 and near the side to prevent coal blocks on the shovel body 1 from falling off from both sides of the shovel body 1.

[0028] The rear side of the shovel body 1 is provided with a connector 16. The connector 16 includes connecting ears 161 arranged opposite each other. A hinge rod 162 is connected between the two connecting ears 161. The connector 16 facilitates the connection between the shovel body 1 and the tunneling machine. It also facilitates the lifting equipment to lift the shovel body 1 through the connector 16, remove the bottom cover 2, and install, repair and replace the parts in the cavity 11.

[0029] Working principle: When the tunneling machine is in operation, the conveyor motor 3 is started, which drives the drive shaft 31 to rotate. The drive shaft 31, driven shaft 32, and conveyor belt 33 form a conveying mechanism to transport the coal blocks on the shovel to the transport equipment behind the tunneling machine. The transmission motor 5 is started to drive the impeller 41 to rotate. When the impeller 41 rotates, the impeller sweeps the coal blocks into the conveying groove 12 through the blade teeth 411. Impellers 41 are set on both sides of the conveying groove 12. When the two impellers 41 rotate, they can crush the larger coal blocks. The crushed coal blocks can then easily fall into the conveying groove 12. Compared with the compression conveying method, the coal block conveying efficiency is greatly improved.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A loading shovel plate for a coal mine tunneling machine, characterized in that: Includes a shovel body (1), the shovel body (1) has a cavity (11) inside, the bottom of the cavity (11) is open, and a bottom cover (2) is provided at the opening; the upper surface of the shovel body (1) is provided with a conveying groove (12), the bottom of the conveying groove (12) is located in the cavity (11), the conveying groove (12) is provided with a drive shaft (31) and a driven shaft (32), the drive shaft (31) and the driven shaft (32) are connected to a conveyor belt (33), the cavity (11) is provided with a conveyor motor (3), and the shaft of the conveyor motor (3) is connected to the drive shaft (31).

2. The loading shovel plate of the coal mine tunneling machine according to claim 1, characterized in that, The inner surfaces on both sides of the conveying groove (12) are provided with shaft hole one (121) for the drive shaft (31) and shaft hole two (122) for the driven shaft (32). The conveying motor (3) is installed in the cavity (11). The shaft of the conveying motor (3) is connected to the drive shaft (31) through a coupling.

3. The loading shovel plate of the coal mine tunneling machine according to claim 2, characterized in that, The rear of the shovel body (1) is provided with a clearance slot (13) that is adapted to the conveying groove (12), and the bottom surface of the clearance slot (13) is a downward curved arc surface (131).

4. The loading shovel plate of the coal mine tunneling machine according to claim 3, characterized in that, The working surface array of the conveyor belt (33) is provided with several protrusions (331). The cross-section of the protrusions (331) is rectangular, and the long side of the protrusions (331) is perpendicular to the conveying direction of the conveyor belt (33).

5. The loading shovel plate of the coal mine tunneling machine according to claim 1, characterized in that, Shaft holes three (14) are provided opposite each other on the upper surface of the shovel body (1). The two shaft holes three (14) are located on both sides of the conveying groove (12). Shaft rod (4) is provided in the shaft hole three (14). An impeller (41) is provided at the top of the shaft rod (4). Several blade teeth (411) are arranged in a circumferential array on the side of the impeller (41). A drive motor (5) is provided in the cavity (11). The drive motor (5) drives the shaft rod (4) to rotate.

6. The loading shovel plate of the coal mine tunneling machine according to claim 5, characterized in that, The rotation direction of the two impellers (41) is adapted to the conveying direction of the conveyor belt (33).

7. The loading shovel plate of the coal mine tunneling machine according to claim 5, characterized in that, The blade tooth (411) has an arc-shaped protrusion (4111) on one side of the vertical surface along the rotation direction of the impeller (41).

8. The loading shovel plate of the coal mine tunneling machine according to claim 1, characterized in that, The upper surface of the shovel (1) is an inclined surface, and the inclination height of the inclined surface gradually increases from the front end of the shovel (1) to the rear.

9. The loading shovel plate of the coal mine tunneling machine according to claim 1, characterized in that, Baffles (15) are provided on the upper surface of the shovel body (1) and near the side.

10. The loading shovel plate of the coal mine tunneling machine according to claim 1, characterized in that, The rear side of the shovel body (1) is provided with a connector (16), which includes a connecting ear (161) arranged opposite to each other, and a hinge rod (162) is connected between the two connecting ears (161).

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