A mining tunneling machine

Abstract

The present invention relates to the technical field of mining excavation equipment, and specifically discloses a mining excavator, including an equipment body, a cutting part is provided on the upper front side of the equipment body, a shovel plate part is provided on the lower front side, a conveying mechanism is provided on the rear side of the shovel plate part, walking tracks are provided on both sides of the lower side of the equipment body, an auxiliary screening plate is provided on the shovel plate part, a moving mechanism is provided on both sides of the shovel plate part, a rotating part is provided at both ends of the rear side of the auxiliary screening plate, the output end of the moving mechanism is connected to the rotating part, and the rotating part is driven to rotate by a driving part; a collection bin is also provided on the rear side of the shovel plate part, and a crushing mechanism is provided in the collection bin. By inserting the auxiliary screening plate under the ore pile, the moving mechanism moves the auxiliary screening plate backward along the shovel plate part, and after the auxiliary screening plate moves to the front of the collection bin, the rotating part controls the auxiliary screening plate to rotate backward, and large rock blocks are introduced into the collection bin, and the crushing mechanism crushes them, and enters the conveying mechanism to be transported out, thereby improving work efficiency and reducing the risk of manual operation.

Description

Technical Field

[0001] The invention relates to the technical field of mining excavation equipment, and in particular to a mining excavator. Background Art

[0002] Roadheader is one of the indispensable equipment in coal mining. It is the roadheading equipment for the construction of underground tunnels, tunnels and railways in coal mines. It is mainly used for crushing coal and rock, loading coal and rock, and self-propelled movement of the roadheader. It mainly includes a cutting part, a shovel part and a crawler walking part. The cutting part and the shovel part are both arranged at the front of the equipment body. The ore and rock are crushed by the cutting head of the cutting part, and the crushed slag is collected by the shovel part and transported backwards through the conveying mechanism at the rear.

[0003] Chinese invention patent CN117248904A discloses a mining filling excavation device, including an excavation machine body, a crushing mechanism is connected to the front of the excavation machine body, a collecting mechanism is arranged below the crushing mechanism, the collecting mechanism is connected to the front of the excavation machine body, a transmission mechanism is arranged inside the excavation machine body, one end of the transmission mechanism is connected to the collecting mechanism, and an upper support seat is arranged above the excavation machine body. Chinese invention patent CN118774814A discloses a coal mine road clearing excavation equipment, including an excavation body, a shell, a water storage tank, a suction assembly, a filter box and a spray assembly, the shell is arranged on the excavation body, the shell has an air inlet and an outlet, the air inlet is at one end of the shell in a preset direction, the outlet is at the other end of the shell in the preset direction, and the suction assembly is arranged inside the shell.

[0004] In the prior art, during the process of the cutting head crushing the ore and rock, the ore and rock are not completely crushed into debris. In many cases, due to the influence of vibration, they will fall off into larger rock blocks and rock pieces. Due to their large size, it is not easy for the shovel plate to shovel in. Even if it can be shoveled in, since the tunnel boring machine works in a tunnel underground, the underground space is limited, the tunnel boring machine has a compact structure, and the upper part of the conveying mechanism is generally the operator's control room. Therefore, the space available for transporting ore materials in the upper part of the conveying mechanism is limited, making it difficult for large rock blocks and rock pieces to be transported through the conveying mechanism at the rear. Moreover, the fallen rock blocks can move freely, and it is not easy to crush them again with the cutting head. Manual crushing operation is highly dangerous, and if the machine is stopped for operation, the efficiency is also low. Summary of the invention

[0005] The present invention is to overcome the shortcomings of the above-mentioned prior art and provide a mining tunneling machine. The present invention inserts an auxiliary screening plate under the pile of slag and larger rock blocks and rock pieces, and then moves the auxiliary screening plate backward along the shovel plate part through a moving mechanism. After the auxiliary screening plate moves to the front of the collection bin, the rotating part controls the auxiliary screening plate to rotate backward, and the large rock blocks are introduced into the collection bin, and then crushed by the crushing mechanism, and finally enter the conveying mechanism and transported out, thereby achieving the effect of improving work efficiency and reducing the danger of manual operation.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a mining tunneling machine, including an equipment body, a cutting part is provided on the upper front side of the equipment body, a shovel plate part is provided on the lower front side, a conveying mechanism is provided on the rear side of the shovel plate part, walking tracks are provided on both sides of the lower side of the equipment body, and it also includes an auxiliary screening plate located on the shovel plate part, and a moving mechanism is located on both sides of the shovel plate part. Rotating parts are provided at both ends of the rear side of the auxiliary screening plate, and the output end of the moving mechanism is connected to the rotating part, and the rotating part is driven to rotate by a driving part; a collection bin is also provided on the rear side of the shovel plate part, and a crushing mechanism is provided in the collection bin.

[0007] Preferably, the moving mechanism includes a horizontally arranged sliding track and a vertically arranged vertical rod, the sliding track is provided with a driving slider, the lower end of the vertical rod is connected to the driving slider, and a sliding sleeve is sleeved on the vertical rod, a fixed seat is installed on the sliding sleeve, and the rotating part is arranged on the fixed seat.

[0008] Preferably, the rotating part includes a rotating shaft and a bearing seat, the bearing seat is arranged on a fixed seat, one end of the rotating shaft is connected to the auxiliary screen plate, and the other end is connected to the bearing seat; a brake is provided on the rotating shaft.

[0009] Preferably, the driving part includes a driving motor, an output shaft, a driving bevel gear and a driven bevel gear, one end of the output shaft is connected to the driving motor, the driving bevel gear is arranged at the other end of the output shaft, the driven bevel gear is arranged on the rotating shaft, and the driving bevel gear is meshed with the driven bevel gear.

[0010] Preferably, a cover is provided on the outer side of the driving part.

[0011] Preferably, the output shaft comprises an upper shaft section and a lower shaft section which are coaxially arranged, and the upper shaft section and the lower shaft section are connected via a shaft connector.

[0012] Preferably, the shaft connector includes a first friction disk fixedly arranged at the lower end of the upper shaft section and a second friction disk slidably arranged on the lower shaft section through a keyway, and the second friction disk is circumferentially provided with a smooth ring; the smooth ring is connected to the shift fork, and the shift fork is connected to the driver.

[0013] Preferably, a material inlet is provided on the front side of the material collection bin; and a grid plate is provided on the lower side of the material collection bin.

[0014] Preferably, an arc-shaped surface is provided at the lower side of the front end of the auxiliary screen plate; a semicircular straight baffle is provided at the rear end of the auxiliary screen plate, and the semicircular straight baffle is coaxially connected to the rotating shaft.

[0015] Preferably, side baffles are provided on both sides of the shovel plate portion, slideways are provided on the side baffles, and both sides of the auxiliary screening plate are placed on the side baffles.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] (1) The auxiliary screen plate is inserted under the pile of slag and larger rock blocks and rock pieces, and then the auxiliary screen plate is moved backward along the shovel plate part by the moving mechanism. After the auxiliary screen plate moves to the front of the aggregate bin, the rotating part controls the auxiliary screen plate to rotate backward, and the large rock blocks are introduced into the aggregate bin, and then crushed by the crushing mechanism, and finally enter the conveying mechanism and transported out. This not only improves work efficiency, but also reduces the risk of manual operation.

[0018] (2) Moreover, the aggregate bin is located in front of the conveying mechanism, which occupies a small space and does not affect the position between the conveying mechanism and the equipment body, thus ensuring a compact structure and facilitating work.

[0019] (3) The driving slider moves on the sliding track, and the sliding track can play a supporting and limiting role. When the driving slider moves, the vertical rod moves forward and backward accordingly. The fixed seat on the sliding sleeve is connected to the auxiliary screening plate through the rotating part. The auxiliary screening plate moves back and forth at the front lower and rear upper ends along the shoveling plate part with the vertical rod, realizing the unloading and shoveling process of the auxiliary screening plate.

[0020] (4) The rotation of the auxiliary screen plate is ensured by the rotating shaft and the bearing seat. A brake is provided on the rotating shaft so that the auxiliary screen plate can be stopped at a certain position for easy operation.

[0021] (5) A cover is provided on the outside of the driving part to prevent dust and provide protection when loading and unloading mineral materials.

[0022] (6) The driver drives the shift fork to separate the second friction disc from the first friction disc. When the front side of the auxiliary screen plate reaches the ground in front of the shoveling plate, the moving mechanism continues to move the auxiliary screen plate forward, and the front side of the auxiliary screen plate is inserted into the ore pile. Finally, the auxiliary screen plate can enter the ore pile horizontally, and then the shoveling operation can be carried out. It is convenient to operate and easy to control.

[0023] (7) The large rock blocks entering the aggregate bin are supported by the grid plate so that they are crushed into slag by the crushing mechanism and then left between the holes of the grid plate and transported away by the conveying mechanism.

[0024] (8) An arc-shaped surface is provided on the lower side of the front end of the auxiliary screening plate, which facilitates turning when the auxiliary screening plate reaches the ground in front of the shovel plate part, and also facilitates insertion into the ore pile.

[0025] (9) A semicircular straight baffle is provided at the rear end of the auxiliary screen plate, and the semicircular straight baffle is coaxially connected to the rotating shaft, so that when the auxiliary screen plate rotates with the rotating shaft, there is no obstruction, and it is easy to rotate.

[0026] (10) Side baffles are provided on both sides of the shovel plate, and have a certain height, so that when the auxiliary screening plate is placed on the side baffles, other components on the shovel plate do not interfere with it. The side baffles are provided with slides to facilitate the movement of the auxiliary screening plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a side schematic diagram of the present invention;

[0028] Figure 2 for Figure 1 An enlarged view of the shovel plate;

[0029] Figure 3 for Figure 2 Schematic diagram of the middle A direction;

[0030] Figure 4 for Figure 3 An enlarged schematic diagram of the driving part;

[0031] Figure 5 It is a cross-sectional schematic diagram of the aggregate bin;

[0032] Figure 6 This is a three-dimensional upward view of the auxiliary screen plate.

[0033] Description of reference numerals:

[0034] 1-equipment body, 11-cutting part, 12-shovel part, 121-side baffle, 122-slideway, 13-conveying mechanism, 14-walking crawler;

[0035] 2- auxiliary screening plate, 21- arc surface, 22- straight baffle bar;

[0036] 3-rotating part, 31-rotating shaft, 32-bearing seat, 33-brake;

[0037] 4-moving mechanism, 41-sliding track, 42-driving slider, 43-vertical rod, 44-sliding sleeve, 45-fixed seat;

[0038] 5-driving part, 51-driving motor, 52-output shaft, 521-upper shaft section, 522-lower shaft section, 53-driving bevel gear, 54-driven bevel gear, 55-cover;

[0039] 6-axis connector, 61-first friction disc, 62-second friction disc, 63-slip ring, 64-shift fork, 65-driver;

[0040] 7-aggregation bin, 71-feeding port, 72-grid plate;

[0041] 8- Crushing mechanism. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0043] Example

[0044] The following is combined with Figure 1-Figure 5 The present invention is further described, a mining tunneling machine, such as Figure 1 and Figure 2 As shown, the equipment body 1 includes a cutting portion 11, a shovel plate portion 12, a conveying mechanism 13, and walking tracks 14 on both sides of the lower part of the equipment body 1. An auxiliary screening plate 2 is provided on the shovel plate portion 12, and moving mechanisms 4 are provided on both sides of the shovel plate portion 12. Rotating portions 3 are provided at both ends of the rear side of the auxiliary screening plate 2. The output end of the moving mechanism 4 is connected to the rotating portion 3, and the rotating portion 3 is driven to rotate by the driving portion 5. A collection bin 7 is also provided on the rear side of the shovel plate portion 12, and a crushing mechanism 8 is provided in the collection bin 7.

[0045] During the process of the cutting part 11 crushing the ore and rock, the slag and larger rock blocks and rock pieces are accumulated in front of the equipment body 1, and the moving mechanism 4 moves the auxiliary screen plate 2 along the shovel plate part 12 to its front side, controls the walking crawler 14 to drive the equipment body 1 forward, and inserts the auxiliary screen plate 2 under the pile of slag and larger rock blocks and rock pieces; the auxiliary screen plate 2 is controlled by the rotating part 3 to rotate upward at a certain angle so that it has a certain inclination with the ground, and at the same time, the auxiliary screen plate 2 is moved backward along the shovel plate part 12 by the moving mechanism 4. The auxiliary screen plate 2 has sieve holes, and large pieces of rock are moved to the front of the collecting bin 7 along with the auxiliary screen plate 2, while the slag is scattered to the shovel plate The auxiliary screening plate 2 moves to the front of the collecting bin 7, and the rotating part 3 controls the auxiliary screening plate 2 to rotate backward, so that the large rock blocks are introduced into the collecting bin 7, and then the large rock blocks are crushed by the crushing mechanism 8, and finally enter the conveying mechanism 13 to be transported out. Moreover, the collecting bin 7 is located in front of the conveying mechanism 13, occupies a small space, does not affect the position between the conveying mechanism 13 and the equipment body 1, ensures a compact structure, and is conducive to the work. It not only improves the work efficiency, but also reduces the risk of manual operation. At the same time, when there are no large rock blocks, the shovel plate part 12 works normally.

[0046] like Figure 2 and Figure 3 As shown, the moving mechanism 4 includes a horizontally arranged sliding rail 41 and a vertically arranged vertical rod 43, a driving slider 42 is provided on the sliding rail 41, the lower end of the vertical rod 43 is connected to the driving slider 42, and a sliding sleeve 44 is sleeved on the vertical rod 43, a fixed seat 45 is installed on the sliding sleeve 44, and the rotating part 3 is arranged on the fixed seat 45.

[0047] The driving slider 42 moves on the sliding track 41, and the sliding track 41 can play a supporting and limiting role. When the driving slider 42 moves, the vertical rod 43 moves forward and backward accordingly. The fixed seat 45 on the sliding sleeve 44 is connected to the auxiliary screening plate 2 through the rotating part 3. The auxiliary screening plate 2 moves back and forth at the front lower and rear upper ends along the shoveling plate part 12 with the vertical rod 43, realizing the process of unloading and shoveling of the auxiliary screening plate 2.

[0048] like Figure 3 and Figure 4 As shown, the rotating part 3 includes a rotating shaft 31 and a bearing seat 32. The bearing seat 32 is arranged on the fixed seat 45. One end of the rotating shaft 31 is connected to the auxiliary screen plate 2, and the other end is connected to the bearing seat 32, which ensures the rotation of the auxiliary screen plate 2. A brake 33 is provided on the rotating shaft 31, so that the auxiliary screen plate 2 can be stopped at a certain position for easy operation.

[0049] like Figure 3 and Figure 4As shown, the driving part 5 includes a driving motor 51, an output shaft 52, a driving bevel gear 53 and a driven bevel gear 54. One end of the output shaft 52 is connected to the driving motor 51, the driving bevel gear 53 is arranged at the other end of the output shaft 52, and the driven bevel gear 54 is arranged on the rotating shaft 31, and the driving bevel gear 53 is meshed with the driven bevel gear 54.

[0050] like Figure 3 As shown, a cover 55 is provided on the outside of the driving part 5 to prevent dust and provide protection when loading and unloading mineral materials.

[0051] like Figure 4 As shown, the output shaft 52 includes an upper shaft section 521 and a lower shaft section 522 which are coaxially arranged, and the upper shaft section 521 and the lower shaft section 522 are connected via a shaft connector 6 .

[0052] like Figure 4 As shown, the shaft connector 6 includes a first friction disk 61 fixedly arranged at the lower end of the upper shaft section 521 and a second friction disk 62 slidably arranged on the lower shaft section 522 through a keyway. The second friction disk 62 is circumferentially provided with a smooth ring 63; the smooth ring 63 is connected to the fork 64, and the fork 64 is connected to the driver 65.

[0053] When the auxiliary screening plate 2 is loaded from the ore pile and moves backward along the shovel plate part 12, the brake 33 grabs the rotating shaft 31 to fix it. When it reaches the front side of the collecting bin 7, the driver 65 drives the fork 64 to move the second friction disc 62 closer to the first friction disc 61 and contact the first friction disc 61, and transmits the torque of the upper shaft section 521 to the lower shaft section 522, thereby driving the rotating part 3 to rotate, and the auxiliary screening plate 2 is rotated backward to unload. After unloading, the driving part 5 will move the auxiliary screening plate 2 backward. 2 rotates forward to the shovel plate portion 12, and the auxiliary screening plate 2 is moved forward by the moving mechanism 4. At this time, the driver 65 drives the fork 64 to separate the second friction plate 62 from the first friction plate 61. When the front side of the auxiliary screening plate 2 reaches the ground in front of the shovel plate portion 12, the moving mechanism 4 continues to move the auxiliary screening plate 2 forward, and the front side of the auxiliary screening plate 2 is inserted into the ore pile. Finally, the auxiliary screening plate 2 can enter the ore pile horizontally, and then the shoveling operation is carried out, which is convenient to operate and easy to control.

[0054] like Figure 5 As shown, a feed port 71 is provided on the front side of the aggregate bin 7, and a grid plate 72 is provided on the lower side of the aggregate bin 7. The material unloaded by the auxiliary screen plate 2 enters the aggregate bin 7. The grid plate 72 supports the large rock blocks, so that they are crushed into slag by the crushing mechanism 8 and then stay between the holes of the grid plate 72 to the conveying mechanism 13 for transportation.

[0055] like Figure 6As shown, an arc-shaped surface 21 is provided on the lower side of the front end of the auxiliary screen plate 2, which is convenient for turning when the auxiliary screen plate 2 reaches the ground in front of the shovel plate part 12, and is also convenient for inserting into the ore pile; a semicircular straight baffle bar 22 is provided on the rear end of the auxiliary screen plate 2, and the semicircular straight baffle bar 22 is coaxially connected to the rotating shaft 31, so that when the auxiliary screen plate 2 rotates with the rotating shaft 31, there is no obstruction and it is easy to rotate.

[0056] like Figure 2 As shown, side baffles 121 are provided on both sides of the shovel plate part 12. The side baffles 121 have a certain height so that when the auxiliary screening plate 2 is placed on the side baffles 121, other components on the shovel plate part 12 do not interact with it. A slide 122 is provided on the side baffles 121 to facilitate the movement of the auxiliary screening plate 2.

[0057] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A mining tunneling machine, comprising a device body (1), wherein a cutting portion (11) is provided on the upper front side of the device body (1), a shovel plate portion (12) is provided on the lower front side, a conveying mechanism (13) is provided on the rear side of the shovel plate portion (12), and walking crawlers (14) are provided on both sides of the lower side of the device body (1), characterized in that: It also includes an auxiliary screening plate (2) located on the shovel plate portion (12), and moving mechanisms (4) located on both sides of the shovel plate portion (12), wherein rotating parts (3) are provided at both ends of the rear side of the auxiliary screening plate (2), and the output end of the moving mechanism (4) is connected to the rotating part (3), and the rotating part (3) is driven to rotate by the driving part (5); A material collecting bin (7) is also provided at the rear side of the shovel plate portion (12), and a crushing mechanism (8) is provided in the material collecting bin (7); The moving mechanism (4) comprises a horizontally arranged sliding track (41) and a vertically arranged vertical rod (43); a driving slider (42) is arranged on the sliding track (41); the lower end of the vertical rod (43) is connected to the driving slider (42); a sliding sleeve (44) is sleeved on the vertical rod (43); a fixed seat (45) is mounted on the sliding sleeve (44); and the rotating part (3) is arranged on the fixed seat (45); The rotating part (3) comprises a rotating shaft (31) and a bearing seat (32); the bearing seat (32) is arranged on a fixed seat (45); one end of the rotating shaft (31) is connected to the auxiliary screening plate (2), and the other end is connected to the bearing seat (32); a brake (33) is provided on the rotating shaft (31); The ore and rock are crushed by the cutting part (11), and the crushed slag and large rock blocks and rock flakes are accumulated in front of the equipment body (1); the moving mechanism (4) moves the auxiliary screening plate (2) along the shovel plate part (12) to the front side thereof; the walking crawler (14) is controlled to drive the equipment body (1) forward, and the auxiliary screening plate (2) is inserted under the pile of slag and large rock blocks and rock flakes; the rotating part (3) controls the auxiliary screening plate (2) to rotate upward so that it has an inclination with the ground; the moving mechanism (4) moves the auxiliary screening plate (2) backward along the shovel plate part (12), and the auxiliary screening plate (2) is moved to the front side of the equipment body (1). The material plate (2) has sieve holes, and large rock blocks and rock pieces move with the auxiliary sieve plate (2) to the front of the collection bin (7); the slag is scattered onto the shovel plate part (12) through the sieve holes, and then enters the conveying mechanism (13) through the shovel plate part (12) to be transported out; after the auxiliary sieve plate (2) moves to the front of the collection bin (7), the rotating part (3) controls the auxiliary sieve plate (2) to rotate backward, and guides the large rock blocks and rock pieces into the collection bin (7); the crushing mechanism (8) crushes the large rock blocks and rock pieces, and finally enters the conveying mechanism (13) to be transported out.

2. A mining tunneling machine according to claim 1, characterized in that: The driving part (5) comprises a driving motor (51), an output shaft (52), a driving bevel gear (53) and a driven bevel gear (54); one end of the output shaft (52) is connected to the driving motor (51); the driving bevel gear (53) is arranged at the other end of the output shaft (52); the driven bevel gear (54) is arranged on the rotating shaft (31); and the driving bevel gear (53) meshes with the driven bevel gear (54).

3. A mining tunneling machine according to claim 2, characterized in that: A cover shell (55) is provided on the outside of the driving part (5).

4. A mining tunneling machine according to claim 2, characterized in that: The output shaft (52) comprises an upper shaft section (521) and a lower shaft section (522) which are coaxially arranged, and the upper shaft section (521) and the lower shaft section (522) are connected via a shaft connector (6).

5. A mining tunneling machine according to claim 4, characterized in that: The shaft connector (6) comprises a first friction disc (61) fixedly arranged at the lower end of the upper shaft section (521) and a second friction disc (62) slidably arranged on the lower shaft section (522) via a keyway, wherein the second friction disc (62) is provided with a slip ring (63) in the circumferential direction; The smooth ring (63) is connected to a shift fork (64), and the shift fork (64) is connected to a driver (65).

6. A mining tunneling machine according to claim 1, characterized in that: A material inlet (71) is provided on the front side of the material collecting bin (7); and a grid plate (72) is provided on the lower side of the material collecting bin (7).

7. A mining tunneling machine according to claim 1, characterized in that: The lower side of the front end of the auxiliary screening plate (2) is provided with an arc-shaped surface (21); the rear end of the auxiliary screening plate (2) is provided with a semicircular straight retaining bar (22), and the semicircular straight retaining bar (22) is coaxially connected to the rotating shaft (31).

8. A mining tunneling machine according to claim 7, characterized in that: Side baffles (121) are provided on both sides of the shovel plate portion (12), slideways (122) are provided on the side baffles (121), and both sides of the auxiliary screening plate (2) are placed on the side baffles (121).

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