Coal pushing mechanism

Abstract

The utility model relates to a coal pushing mechanism and belongs to the technical field of coal mining machines. Comprising a plate A, a plate B and a sliding plate, the plate A and the plate B are the same in structure and connected through a bolt assembly, the plate A and the plate B are each provided with a sliding way and a plurality of pin holes, the sliding plate is located on the inner side of the sliding way, a plurality of positioning holes are formed in the sliding plate, and when the pin holes are aligned with the positioning holes, the sliding plate is fixedly connected with the plate A and the plate B through pin shafts. By adjusting the relative position of the sliding plate and the arc-shaped plate, the gap between the coal pushing mechanism and the coal face is dynamically adjusted according to the actual situation on site, so that coal briquettes can be more effectively blocked and controlled, the coal briquette transportation process is optimized, coal briquette omission is reduced, the coal mining efficiency is improved, and the coal mining cost is reduced. The device is suitable for efficient collection, conveying and accurate stacking of coal briquettes in the coal mining process.

Description

Technical Field

[0001] The utility model relates to a coal pushing mechanism, belonging to the technical field of coal shearers. Background Art

[0002] The existing coal pushing mechanism is mainly used to assist in the transportation of coal blocks in the coal mining face. However, there is a gap between the coal pushing mechanism and the coal mining face, resulting in easy omission of coal blocks during the process of pushing coal blocks, increasing the number of coal pushing times and reducing the coal mining efficiency. Content of the Utility Model

[0003] To solve the problems existing in the prior art, the utility model adjusts the relative positions of the sliding plate and the arc plate, and dynamically adjusts the gap between the coal pushing mechanism and the coal mining face according to the actual situation on site, so as to ensure that the coal blocks can be more effectively blocked and controlled, optimize the coal block transportation process, reduce the omission of coal blocks, improve the coal mining efficiency, and is applicable to the efficient collection, transportation and precise stacking of coal blocks during the coal mining process.

[0004] The technical solution adopted by the utility model is a coal pushing mechanism, which includes a plate A, a plate B and a sliding plate. The plate A and the plate B have the same structure and are connected by bolt assemblies. The sliding plate is respectively attached to the plate A and the plate B. The plate A and the plate B are both provided with a number of pin holes, and the sliding plate is provided with a number of positioning holes. When the pin holes are aligned with the positioning holes, the sliding plate is respectively connected and fixed to the plate A and the plate B through pin shafts.

[0005] Further, both the plate A and the plate B include a connecting part, a transition part and a coal shoveling part. The connecting part, the transition part and the coal shoveling part are connected in sequence and are integrally formed. The connecting part of the plate A and the connecting part of the plate B enclose for sleeving on the rolling shaft of the cutting part.

[0006] Further, both the plate A and the plate B are provided with slideways, and the sliding plate is located inside the slideways.

[0007] Further, the plate A and the plate B are installed on the coal shearer housing.

[0008] Further, the coal shoveling part is an arc plate.

[0009] Further, the sliding plate is attached to the coal shoveling part, and the pin shaft passes through the sliding plate and the coal shoveling part and is fixed by a coal mine U-shaped clamp.

[0010] Further, reinforcing ribs are provided on the outer peripheries of the plate A and the plate B.

[0011] Further, the inner sides of the connecting parts of the plate A and the plate B are provided with steps for cooperating with the rolling shaft of the cutting part, and a positioning retaining ring for controlling the insertion depth of the rolling shaft of the cutting part is further provided above the connecting part.

[0012] The present utility model discloses a coal pushing mechanism, and its beneficial effects are as follows. Compared with the prior art, the transition part optimizes the economy and practicability of the overall design by reducing the weight and cost of the structure. The added slideways and pin holes in the coal shoveling part facilitate the installation of the sliding plate. By adjusting the relative position between the sliding plate and the arc plate, it can accurately cope with the gaps of different sizes between the coal pushing mechanism and the coal mining face, effectively avoiding the omission of coal blocks during transportation. In addition, the coal pushing mechanism is provided with reinforcing ribs on the outer periphery of the A plate and the B plate, further enhancing the load-bearing capacity of the structure to adapt to the high-intensity working environment, improving the durability and safety of the equipment. In summary, the present utility model not only optimizes the efficiency and performance of coal block transportation, but also avoids the situation of coal block omission. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 The side schematic view of the structure of the present utility model is shown;

[0015] Figure 2 Shown as Figure 1 The front view schematic view of the A-A section;

[0016] Figure 3 The top view schematic view is shown;

[0017] Figure 4 Shown as Figure 1 The schematic view of the structure of the A plate in

[0018] Figure 5 Shown as Figure 1 The partial schematic view of the cross-section of the connection part of the A plate in

[0019] As shown in the figure: 1. A plate; 2. B plate; 3. Sliding plate; 4. Bolt assembly; 5. Connection part; 6. Transition part; 7. Coal shoveling part; 8. Slideway; 9. Coal mine U-shaped clamp; 10. Pin hole; 11. Positioning hole; 12. Pin shaft; 13. Fastener; 14. Reinforcing rib; 15. Step; 16. Positioning retaining ring; 17. Threaded hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part, rather than all, of the embodiments of the present utility model. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present utility model and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0021] To further understand the content of the present utility model, the following further elaborates on this technical solution in combination with specific implementation manners.

[0022] Embodiment 1: As Figures 1 to 5 shown, this embodiment provides a coal pushing mechanism, including a plate A 1, a plate B 2, and a sliding plate 3. The plate A 1 and the plate B 2 have the same structure and are connected by a bolt assembly 4. Specifically, both the plate A 1 and the plate B 2 include a connecting portion 5, a transition portion 6, and a coal shoveling portion 7. The connecting portion 5, the transition portion 6, and the coal shoveling portion 7 are connected in sequence and are integrally formed. The connecting portion 5 of the plate A 1 and the connecting portion 5 of the plate B 2 enclose a circle for sleeving on the rolling shaft of the cutting portion. The inner sides of the connecting portion 5 of the plate A 1 and the connecting portion 5 of the plate B 2 are provided with steps 15 that cooperate with the rolling shaft of the cutting portion. Above the connecting portion 5, there is also a positioning retaining ring 16 for controlling the insertion depth of the rolling shaft of the cutting portion. The outer peripheries of the connecting portion 5 of the plate A 1 and the connecting portion 5 of the plate B 2 are provided with a number of screw holes 17. After the bolt assembly 4 passes through the screw holes 17, the plate A 1 and the plate B 2 are fixed on the outer periphery of the rolling shaft of the cutting portion. The transition portion 6 of the plate A 1 and the transition portion 6 of the plate B 2 enclose a hollow cavity to reduce weight and cost. The coal shoveling portions 7 of the plate A 1 and the plate B 2 are arc-shaped plates. The two arc-shaped plates are connected by fasteners 13. The arc-shaped plates are provided with a slideway 8 and a number of pin holes 10. The slideway 8 is in an L shape. The sliding plate 3 is located inside the slideway 8 and fits on the outer side of the arc-shaped plate. The sliding plate 3 is provided with a number of positioning holes 11. When the pin holes 10 are aligned with the positioning holes 11, the pin shaft 12 is provided with a clamping hole. After the pin shaft 12 passes through the sliding plate 3 and the arc-shaped plate, it is fixed by a coal mine U-shaped clamp 9 passing through the clamping hole, so that the sliding plate 3 is respectively connected and fixed to the plate A 1 and the plate B 2.

[0023] On this basis, the outer peripheries of the plate A 1 and the plate B 2 are provided with reinforcing ribs 14 to strengthen the structural performance, improve the bearing capacity, and avoid structural deformation.

[0024] In the actual application process, the plate A 1 and the plate B 2 are installed on the coal mining machine housing.

[0025] There is a gap between the existing coal pushing mechanism and the coal mining face, which easily causes coal blocks to be left out during the process of pushing coal blocks, increases the number of coal pushing times, and reduces the coal mining efficiency. Therefore, the present utility model is designed. According to the gap height between the coal pushing mechanism and the coal mining face, the relative position between the sliding plate 3 and the arc-shaped plate is adjusted so that the length of the sliding plate 3 extending out of the arc-shaped plate meets the gap height between the coal pushing mechanism and the coal mining face, avoiding some coal blocks from leaking through the gap. By adopting the coal pushing mechanism of the present utility model, the relative position between the sliding plate 3 and the arc-shaped plate can be adjusted at any time according to the actual situation on site. Specifically, by inserting the pin shaft 12 into the coincidence position of different pin holes 10 and any one of the positioning holes 11 to adapt to the gap height between the coal pushing mechanism and the coal mining face. In the embodiment of the present utility model, the shearer drives the coal pushing mechanism to move, and the arc-shaped plate and the sliding plate 3 jointly form a coal shovel, improving the docking tightness between the coal pushing mechanism and the coal mining face, so that the coal blocks can be more effectively blocked, controlled and transported to the required position.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A coal pushing mechanism, characterized in that, It includes a plate A (1), a plate B (2) and a sliding plate (3). The plate A (1) and the plate B (2) have the same structure and are connected by a bolt assembly (4). A number of pin holes (10) are provided on both the plate A (1) and the plate B (2), and a number of positioning holes (11) are provided on the sliding plate (3). When the pin holes (10) are aligned with the positioning holes (11), the sliding plate (3) is respectively connected and fixed to the plate A (1) and the plate B (2) through a pin shaft (12).

2. The coal pushing mechanism according to claim 1, characterized in that, Both the plate A (1) and the plate B (2) include a connecting portion (5), a transition portion (6) and a coal shoveling portion (7). The connecting portion (5), the transition portion (6) and the coal shoveling portion (7) are connected in sequence and are integrally formed for the connecting portion (5), the transition portion (6) and the coal shoveling portion (7).

3. A coal pushing mechanism according to claim 1 or 2, characterized in that, Both the plate A (1) and the plate B (2) are provided with a slideway (8), and the sliding plate (3) is located inside the slideway (8).

4. The coal pushing mechanism according to claim 2, characterized in that, The sliding plate (3) is attached to the coal shoveling portion (7), and the pin shaft (12) passes through the sliding plate (3) and the coal shoveling portion (7) and is fixed by a coal mine U-shaped clamp (9).

5. A coal pushing mechanism according to claim 1, characterized in that, Reinforcing ribs (14) are provided on the outer periphery of the plate A (1) and the plate B (2).

6. The coal pushing mechanism according to claim 2, characterized in that, The coal shoveling portion (7) is an arc-shaped plate.

7. The coal pushing mechanism according to claim 2, characterized in that, On the inner sides of the connecting portions (5) of the plate A (1) and the plate B (2), there are both steps (15) for cooperating with the rolling shaft of the cutting portion, and a positioning retaining ring (16) for controlling the insertion depth of the rolling shaft of the cutting portion is further provided above the connecting portion (5).

8. The coal pushing mechanism according to claim 1, characterized in that, The plate A (1) and the plate B (2) are installed on the coal mining machine housing.

Images