Thin seam shearer loading passage

Abstract

The present application relates to a kind of thin coal seam coal cutter loading passageway, including main part shell and swing arm shell articulated in the left end or right end of the front of main part shell, main part shell is the T-shaped structure of left and right direction length front short rear long, swing arm shell is located in the front of the rear of main part shell, the main body of swing arm shell is the arm support extending left and right, arm support is drum end, near drum section, near fuselage section and fuselage end in order from one end to the other end, drum end is bent downward relative to near drum section, the bottom of near drum section is higher than the bottom of remaining parts, drum end, near drum section and near fuselage section form arch with near drum section as vault, the rear of main part shell is provided with loading cavity, loading cavity is by front to rear extension, groove mouth downward recess, the front end of loading cavity and the rear end of hole formed below vault are opposite in left and right direction.This application loading effect is obviously improved, the power consumption of cutting motor is greatly reduced, drum wear and traction resistance are obviously reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of coal winning machine loading passage structure, can improve the loading effect of thin coal seam coal winning machine. BACKGROUND

[0002] Generally, the smaller the diameter of the coal winning machine drum, the greater the bending angle of the coal winning machine rocker arm, and the smaller the top picking amount. The arm support and support roof beam of the thin coal seam suspended machine body coal winning machine installed with small diameter drum need to leave a certain top picking amount, so the rocker arm usually adopts the arm support with very small bending angle at the drum end, or even directly adopts the straight arm support structure. In this case, since there is basically no loading port under the arm support, the drum usually adopts the internal suspension mode for cutting and loading, and the coal and rock is mainly loaded out from the outer end of the drum side arm support, so only half of the drum blade is actually involved in loading, thereby the problem of poor loading effect of thin coal seam coal winning machine occurs.

[0003] For the thin coal seam coal winning machine with suspended machine body, due to the influence of the suspended machine body, the machine body can only move forward after the coal and rock cut by the drum is loaded out; however, due to the unsatisfactory loading effect, a large amount of coal and rock cut by the drum is stirred and rubbed in the circumferential direction, which not only increases the drum wear and the forward resistance of the coal winning machine, but also greatly increases the power consumption of the cutting motor, leading to frequent overload phenomenon, especially for rock cutting. SUMMARY

[0004] The present application aims to provide a thin coal seam coal winning machine loading passage, which significantly improves the loading effect, greatly reduces the power consumption of the cutting motor, and significantly reduces the drum wear and traction resistance.

[0005] The main technical solutions of the present application are as follows:

[0006] A thin coal seam coal winning machine loading passage, comprising a main body part shell and a swing arm shell hinged at the left end or right end of the front part of the main body part shell, the main body part shell is a T-shaped structure with a short front part and a long rear part in the left-right direction, and the swing arm shell is located in front of the rear part of the main body part shell, the main body of the swing arm shell is an arm support extending in the left-right direction, the arm support is sequentially divided into a drum end, a near-drum section, a near-machine body section and a machine body end from one end to the other end, the thickness of the near-drum section is less than that of the near-machine body section and the machine body end in the up-down direction, the drum end is bent downward relative to the near-drum section, the bottom surface of the near-drum section is higher than that of the remaining parts, the drum end, the near-drum section and the near-machine body section form an arch shape with the near-drum section as the arch top, and the rear part of the main body part shell is provided with a loading cavity, the loading cavity is a groove extending from front to back with a downward slot, the rear end of the loading cavity is closed, and the front end of the loading cavity in the left-right direction is opposite to and communicates with the rear end of the hole formed below the arch top.

[0007] The bottom surface of the near-drum section can be divided into two sections, the front section is a horizontal surface, and the rear section is an inclined surface with a low front and a high rear.

[0008] The top surface of the loading cavity can be divided into two sections, the front section being a horizontal surface and the rear section being an inclined surface with the front being higher than the rear.

[0009] The rear top edge of the opening is approximately flush with the front top edge of the loading cavity.

[0010] The surfaces surrounding the opening can include the bottom surface of the near-drum section and two mutually facing outer convex arc cylindrical surfaces on the drum end and the near-machine-body section.

[0011] The arm support is provided with a connecting arm extending forward from the arm support, and the connecting arm is provided with a front arm and a rear arm extending rightward or leftward from the connecting arm, and the front arm, the rear arm and the near-machine-body section of the arm support are arranged in sequence from front to back and are spaced apart from the machine-body end, and the swing arm housing is hinged to the front part of the main body housing through the front arm and the rear arm.

[0012] The thin seam coal mining machine loading channel further comprises a conveyor, the conveyor is arranged below the rear part of the main body housing and extends leftward and rightward, the loading cavity is located directly above the conveying groove of the conveyor, the opening and the front side groove top surface of the conveyor surround the front part of the inner loading channel, and the loading cavity and the conveying surface of the conveying groove surround the rear part of the inner loading channel.

[0013] The drum end is provided with a drum, and the outer surface of the drum end and the space surrounded by the drum blades constitute the front part of the outer loading channel, and the rear of the drum end and the shovel plate of the conveyor are provided with a support shoe, the support shoe is fixedly connected to the rear part of the main body housing, and the front part of the outer loading channel and the front part of the inner loading channel are separated in the left-right direction through the support shoe.

[0014] The support shoe is provided with two inclined guide plates inclined toward the left rear and the right rear.

[0015] The surfaces surrounding the opening further include a side surface of the connecting arm near the drum end in the left-right direction, and the side surface is an inner concave arc cylindrical surface coaxial with the drum.

[0016] The main body housing is a left-right symmetrical structure, and the swing arm housing and the support shoe are each one on the left and right, and are arranged left-right symmetrically relative to the main body housing, forming two outer loading channels and inner loading channels left-right symmetrically.

[0017] The beneficial effects of the present application are as follows:

[0018] The present application forms a part of the inner loading channel below the near-drum section of the arm support by setting the swing arm housing arm support with a special shape.

[0019] The front part of the inner loading channel is surrounded by the lower hole opening with the near drum section as the vault and the front side of the trough of the conveyor, the rear part of the inner loading channel is surrounded by the loading cavity and the conveying surface of the conveying trough, the rear end top edge of the hole opening is close in height to the front end top edge of the loading cavity, and the connection between the front part and the rear part of the inner loading channel is better achieved, so that the coal flow can smoothly enter the conveyor trough through the inner loading channel.

[0020] The front part of the outer loading channel is surrounded by the outer surface of the drum end of the arm frame and the drum blade, has a space with an open outer end, and is beneficial to the drum throwing and throwing of the coal and rock into the conveyor trough.

[0021] By arranging two flow guide plates inclined to the left rear and right rear on the support sliding shoe, the coal thrown and thrown by the drum can be more effectively divided into the inner and outer loading channels.

[0022] The front part of the outer loading channel and the front part of the inner loading channel are separated in the left-right direction by the support sliding shoe, so that the coal flow outside the center line of the drum does not hinder the coal flow inside when the coal mining machine moves, and the coal and rock inside the drum can smoothly pass through the inner loading channel to reach the conveyor without being blocked by the coal flow of the outer loading channel.

[0023] Compared with the existing coal mining machine with only the outer loading channel 01', the present application has both the outer and inner loading channels, which work together to increase the axial conveying area of the drum blade from 1 / 2 to nearly 3 / 4, significantly improve the loading effect, reduce the forward resistance of the machine body, and greatly reduce the cutting power consumption, and the corresponding drum wear and traction resistance are also improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of an embodiment of the thin seam coal mining machine of the present application;

[0025] Figure 2 It is a structural schematic view of an embodiment of the thin seam coal mining machine of the present application; Figure 1

[0026] Figure 3 It is a structural schematic view of an embodiment of the thin seam coal mining machine of the present application; Figure 2

[0027] Figure 4 It is a structural schematic view of an embodiment of the thin seam coal mining machine of the present application; Figure 2

[0028] Figure 5 It is a structural schematic view of an embodiment of the thin seam coal mining machine of the present application; Figure 4

[0029] Figure 6 It is a structural schematic view of an embodiment of the thin seam coal mining machine of the present application;

[0030] Figure 7 ​​​​A side view of the thin seam coal mining machine of the present application;

[0031] Figure 8 is a schematic diagram of the outer loading passage of the existing coal mining machine when the swing arm is working.

[0032] Reference signs:

[0033] 01. outer loading passage; 02. inner loading passage; 01' outer loading passage of the existing coal mining machine;

[0034] 1. swing arm shell; 111. front arm; 112. rear arm; 113. arm support; 1131. drum end; 1132. near-drum section; 1133. near-machine body section; 1134. machine body end; 114. connecting arm; 1142. side near the drum end; 1152. rear section of the bottom surface of the near-drum section; 1161. outer convex circular arc cylindrical surface; 1162. front section of the bottom surface of the near-drum section; 1163. outer convex circular arc cylindrical surface; 13. drum;

[0035] 2. main body part shell; 26. loading cavity;

[0036] 3. cutting motor;

[0037] 4. oil cylinder;

[0038] 5. support sliding shoe; 51. flow guide plate;

[0039] 9. conveyor; 91. shovel plate; 95. conveying groove. DETAILED DESCRIPTION

[0040] The present application discloses a thin seam coal mining machine loading passage (which can be simply referred to as a loading passage), such as Figures 1-7As shown, it comprises a main body shell 2 and a swing arm shell 1 hinged at the left or right end of the front of the main body shell. The main body shell is a T-shaped structure with a short front and a long back in the left-right direction, and the swing arm shell is located in front of the back of the main body shell. The main body of the swing arm shell is an arm support 113 extending in the left-right direction. According to the different distances of different parts of the arm support from the drum or the fuselage, the arm support can be sequentially divided into a drum end 1131, a near-drum segment 1132, a near-fuselage segment 1133 and a fuselage end 1134 from one end to the other end. The drum end is bent downward relative to the near-drum segment, the bottom surface of the near-drum segment is higher than the bottom surfaces of the other parts, and the drum end, the near-drum segment and the near-fuselage segment form an arch with the near-drum segment as the vault. The back of the main body shell is provided with a loading cavity 26, which is a groove extending from front to back with the notch facing down. The loading cavity is not a through groove, and its back end is closed. The front end of the loading cavity in the left-right direction is opposite and communicates with the back end of the hole formed below the vault. The hole and the loading cavity corresponding to the front and back belong to the internal loading channel 02. By adding the internal loading channel, the loading effect of the thin coal seam mining machine can be greatly improved. At the same time, by arranging the planetary reduction mechanism which bears the main reduction task in the drum end, the reduction ratio of the cutting transmission mechanism in the arm support is reduced, and the thickness of the arm support is thinned. Not only can the hole be arranged, but also enough roof picking amount can be ensured.

[0041] The thickness of the near-drum segment in the up-down direction is smaller than that of the near-fuselage segment and the fuselage end.

[0042] The bottom surface of the near-drum segment is also the top surface of the hole, which can be divided into front and back segments 1162 and 1152. The front segment is a horizontal surface, and the back segment is an inclined surface with a low front and a high back. The setting of the bottom surface of the near-drum segment can guide the coal flow to move upward and backward in the hole.

[0043] The top surface of the loading cavity is preferably divided into front and back segments. The front segment is a horizontal surface, and the back segment is an inclined surface with a high front and a low back. The coal flow entering the loading cavity will move downward and backward after passing through a horizontal buffer zone, and then enter the conveying groove of the conveyor.

[0044] The top edge of the back end of the hole is close in height to the top edge of the front end of the loading cavity, and is preferably flush.

[0045] The surfaces surrounding the hole include the bottom surfaces 1152 and 1162 of the near-drum segment and the two mutually facing convex circular arc surfaces 1161 and 1163 of the drum end and the near-fuselage segment.

[0046] The middle of the arm support is provided with a connecting arm 114 extending forward from the arm support, the connecting arm is provided with a front arm 111 and a rear arm 112 extending rightward or leftward from the connecting arm, the front arm, the rear arm and the proximal body part 1133 of the arm support are sequentially and spacedly arranged from front to back, the swing arm shell is hinged to the front part of the main body shell through the front arm and the rear arm. The swing arm shell and the main body shell are hinged by the cutting motor 3 as a hinge pin shaft, the cutting motor is fixed relative to the main body shell and swings relative to the swing arm shell. By taking the cutting motor as a whole as a pin shaft, the left and right lengths of the main body shell are shortened, which is equivalent to shortening the left and right lengths of the suspended body part of the coal mining machine, and the structure of the cutting mechanism is simplified.

[0047] The swing arm shell and the main body shell are connected by an oil cylinder 4, the extension and contraction of the oil cylinder drives the swing arm shell to swing around the cutting motor, and further drives the swing arm shell to swing up and down. The hinge position of the oil cylinder and the swing arm shell is on the extended end of the front arm. This structure can make the front part of the main body shell more compact in the left and right directions.

[0048] The side surface 1142 of the connecting arm close to the drum end in the left and right directions further comprises an inner concave circular cylindrical surface coaxial with the drum.

[0049] The thin seam coal mining machine loading channel further comprises a conveyor 9, the conveyor is arranged below the rear part of the main body shell and extends leftward and rightward, the loading cavity is located directly above the conveying groove 95 of the conveyor, the hole and the front side groove top surface of the conveyor enclose the front part of the inner loading channel, and the loading cavity and the conveying surface of the conveying groove enclose the rear part of the inner loading channel. The two are connected front and rear to form the inner loading channel.

[0050] A drum 13 is installed on the drum end, and the outer surface of the drum end and the space surrounded by the drum blades constitute the front part of the outer loading channel 01. A support shoe 5 is arranged on the shovel plate 91 of the conveyor behind the drum end, preferably directly behind, and the support shoe is fixedly connected with the rear part of the main body shell. The front part of the outer loading channel and the front part of the inner loading channel are separated in the left and right directions by the support shoe. The support shoe separates the coal flow on the inner and outer sides of the drum in the left and right directions, reducing the influence of the coal flow outside the center line of the drum on the coal flow inside when the coal mining machine moves.

[0051] Two inclined guide plates 51 are preferably arranged on the support shoe, inclined toward the left rear and the right rear. The guide plates can guide the coal thrown out of the drum to flow to the left rear and the right rear of the drum, and the arrangement of the support shoe and the guide plates, in combination with the loading cavity, can facilitate the entry of the coal flow on the inner side of the drum into the conveying groove, improving the coal loading effect.

[0052] The side of the connecting arm near the end of the roller is preferably an inner concave circular arc cylindrical surface coaxial with the roller, which maintains a certain gap with the blade of the roller, and can improve the loading effect of the spiral roller conveying material.

[0053] The main body part shell is preferably a left-right symmetrical structure, and the swing arm shell and the support sliding shoe are each arranged on the left and right sides of the main body part shell, and are arranged symmetrically left and right relative to the main body part shell, forming two left-right symmetrical outer loading channels and inner loading channels.

[0054] Unless specifically specified, the front and back directions herein refer to the direction close to the coal wall and the direction away from the coal wall.

Claims

1. A thin seam shearer loading pass defined by: The application relates to a swing arm shell and a main body shell, wherein the swing arm shell is hinged to the front of the main body shell; the main body shell is a T-shaped structure with a short front and a long back in the left-right direction; the swing arm shell is located in front of the back of the main body shell; the main body of the swing arm shell is an arm frame extending in the left-right direction; the arm frame is sequentially divided into a drum end, a near-drum section, a near-machine-body section and a machine-body end from one end to the other end; the thickness of the near-drum section is smaller than that of the near-machine-body section and the machine-body end; the drum end is bent downward relative to the near-drum section; the bottom surface of the near-drum section is higher than that of the rest of the section; the drum end, the near-drum section and the near-machine-body section form an arch with the near-drum section as the vault; the back of the main body shell is provided with a loading cavity; the loading cavity is a groove extending from front to back with a notch downward; the back end of the loading cavity is closed; the front end of the loading cavity is opposite to and communicates with the back end of a hole formed below the vault in the left-right direction; the middle of the arm frame is provided with a connecting arm extending forward from the arm frame; the connecting arm is provided with a front arm and a rear arm extending rightward or leftward from the connecting arm; the front arm, the rear arm and the near-machine-body section and the machine-body end of the arm frame are sequentially and spacedly arranged from front to back; the swing arm shell is hinged to the front of the main body shell through the front arm and the rear arm; the connecting arm extends downward beyond the bottom surface of the middle of the arm frame; the surface surrounding the hole further comprises a side surface of the near-drum section close to the drum end in the left-right direction.

2. Thin seam shearer loading passage according to claim 1, characterized in that: The bottom surface of the near-drum section is divided into a front section and a back section; the front section is a horizontal surface; and the back section is an inclined surface with a low front and a high back.

3. Thin seam shearer loading passage according to claim 2, characterised in that: The top surface of the loading cavity is divided into a front section and a back section; the front section is a horizontal surface; and the back section is an inclined surface with a high front and a low back.

4. Thin seam shearer loading passage according to claim 3, characterised in that: The top edge of the back end of the hole is flush with the top edge of the front end of the loading cavity.

5. Thin seam shearer loading passage according to claim 4, characterised in that: The surface surrounding the hole comprises the bottom surface of the near-drum section and two mutually-facing outer convex circular cylindrical surfaces of the drum end and the near-machine-body section.

6. Thin seam miner loading aisle as claimed in claim 1, 2, 3, 4 or 5, characterized in that: The application further comprises a conveyor; the conveyor extends in the left-right direction and is arranged below the back of the main body shell; the loading cavity is located directly above a conveying groove of the conveyor; the hole and the front side groove top surface of the conveyor surround the front part of an internal loading channel; the loading cavity and the conveying surface of the conveying groove surround the rear part of the internal loading channel; and the front part and the rear part of the internal loading channel form the internal loading channel.

7. Thin seam shearer loading passage according to claim 6, characterised in that: A drum is installed on the drum end; the outer surface of the drum end and the drum blade surround an outer-end-open space to form the front part of an external loading channel; a support sliding shoe is arranged on the shovel plate of the conveyor behind the drum end; the support sliding shoe is fixedly connected with the back of the main body shell; and the front part of the external loading channel and the front part of the internal loading channel are separated in the left-right direction by the support sliding shoe.

8. Thin seam shearer loading passage according to claim 7, characterised in that: The support sliding shoe is provided with two inclined guide plates inclined toward the left back and the right back.

9. Thin seam shearer loading passage according to claim 8, characterised in that: The side surface of the connecting arm close to the drum end in the left-right direction is an inner concave circular cylindrical surface coaxial with the drum.

10. Thin seam shearer loading passage according to claim 7, characterised in that: The main body shell is a left-right symmetrical structure; the swing arm shell and the support sliding shoe are each one on the left and the right; and the swing arm shell and the support sliding shoe are arranged left-right symmetrically relative to the main body shell to form two left-right symmetrical external loading channels and internal loading channels.

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