Shoveling and transporting device and mining machine

Abstract

The invention relates to the technical field of mining machines, in particular to a shoveling and transporting device and a mining machine. The shoveling and conveying device comprises a shoveling plate part, a belt conveyor and a belt tensioning mechanism, the shoveling plate part is movably installed on the frame, and the shoveling plate part is provided with a first position and a second position; when the shovel plate part is located at the first position, the bottom of the shovel plate part is contacted with the working surface; when the shovel plate part is located at the second position, the bottom of the shovel plate part is located above the working face and leaves the working face; the belt conveyor is installed on the frame, and the shovel plate part is installed at the first end of the belt conveyor. The belt tensioning mechanism is installed on the frame body and used for adjusting the corresponding tensioning degrees of the two sides of a belt located on the belt conveyor. According to the shoveling and conveying device, due to the fact that the belt tensioning mechanism capable of adjusting the corresponding tensioning degrees of the two sides of the belt is arranged, the shoveling and conveying device has the function of tensioning and deviation adjusting of the belt.

Description

Technical Field

[0001] This invention relates to the field of mining machine technology, and more particularly to a shovel and conveying device and a mining machine. Background Technology

[0002] The shoveling and conveying unit on an open-pit mining machine is integrated inside a movable frame and is one of the core working units. Its main responsibility is to collect the material generated by the milling drum and continuously transport it to subsequent transfer equipment. This unit typically consists of a shovel and a belt conveyor.

[0003] Currently, in practical applications of shovel and conveyor systems, belt conveyors are prone to belt misalignment due to various factors such as material impact and uneven distribution. Since the belt conveyor is integrated inside the frame, its installation space is extremely limited. Therefore, the operating space for adjusting belt tension and misalignment is often restricted, making the process of adjusting belt tension and misalignment time-consuming, labor-intensive, and difficult to achieve precise belt adjustment.

[0004] Therefore, a shovel-carrying device with the function of adjusting the tension and deviation of the belt on the belt conveyor is urgently needed for research. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0006] Therefore, the present invention provides a shovel and conveyor device to enable the belt conveyor to have the function of adjusting the tension and deviation of the belt.

[0007] The present invention also provides a mining machine including the above-described shovel and conveyor device.

[0008] A shovel and conveying device according to a first aspect of the present invention, applied to a mining machine, includes: The shovel plate is movably mounted on the frame and has a first position and a second position. When the shovel plate is in the first position, the bottom of the shovel plate is in contact with the working surface. When the shovel plate is in the second position, the bottom of the shovel plate is above the working surface and away from the working surface. The belt conveyor is mounted on the chassis, with the shovel section installed at the first end of the belt conveyor. The belt tensioning mechanism is installed on the belt conveyor. It is used to adjust the position of the two sides of the second end of the belt conveyor to adjust the tension of the belt on both sides of the belt.

[0009] Optionally, the belt conveyor includes: The frame body, with the shovel plate section installed at the first end of the frame body; The first roller is installed on the frame, near the shovel plate, and the axis of the first roller is parallel to the width direction of the frame. The second roller is installed at the second end of the frame, and the axis of the second roller is parallel to the width direction of the frame; the belt is fitted onto the first roller and the second roller; A drive assembly is connected to the second roller drive and is used to drive the second roller to rotate axially. The first roller includes a spindle, spokes, and semi-circular strips. The two ends of the spindle are connected to the frame. The first side of each of the multiple spokes is connected to the side of the spindle, and the second side of each of the multiple spokes is connected to the semi-circular strips. The length direction of each of the multiple spokes is parallel to the length direction of the spindle, and the multiple spokes are distributed on the side of the spindle with the axis of the spindle as the center.

[0010] Optionally, the second roller is mounted on the roller frame; the belt tensioning mechanism includes: The slide rail is installed along the length of the frame, and the first end of the slide rail is slidably connected to the side of the frame. The movable connecting plate is hinged to the ear plate located on the roller frame, and the second end of the slide rail is fixedly connected to the movable connecting plate. The first hydraulic cylinder is installed along the length of the frame. The first end of the first hydraulic cylinder is hinged to the frame, and the second end of the first hydraulic cylinder is hinged to the movable connecting plate. The first hydraulic cylinder is used to control the slide rail to slide relative to the frame in order to adjust the distance between the rolling frame and the frame.

[0011] Optionally, the belt tensioning mechanism further includes a sensor group and a controller. The sensor group is disposed near both sides of the second roller. The sensor group is used to detect whether the belt is misaligned to the left or right. The controller is used to extend the piston rod of the first cylinder located on the left side of the belt and / or retract the piston rod of the first cylinder located on the right side of the belt when the sensor group detects that the belt is misaligned to the left, until the sensor group can no longer detect that the belt is misaligned to the left. The controller is used to extend the piston rod of the first cylinder located on the right side of the belt and / or retract the piston rod of the first cylinder located on the left side of the belt when the sensor group detects that the belt is misaligned to the right, until the sensor group can no longer detect that the belt is misaligned to the right.

[0012] Optionally, it also includes an idler roller mechanism, which includes: The idler rollers consist of three rollers that are hinged together in sequence and located between the upper and lower layers of the belt. The roller frame has rollers on both sides connected to the roller frame at their ends; The buffer mechanism connects the idler frame to the frame body and is used to buffer the impact force of the idler frame on the frame body.

[0013] Optionally, the idler frame includes a connecting part and a supporting part that are connected to each other. The first end of the connecting part is hinged to the end of the idler roller. At least a portion of the connecting part is located on the outer side of the frame. The supporting part is located above the frame and contacts the upper surface of the frame. The buffer mechanism includes a connecting rod and a disc spring. The first end of the connecting rod passes through the frame and the connecting part in sequence and is then fixed to the connecting part. The part of the connecting rod located on the side of the frame away from the connecting part is fitted with a disc spring.

[0014] Optionally, it also includes a drive assembly mounted on the frame and connected to the shovel section, the drive assembly being used to drive the shovel section to move relative to the frame, so that the shovel section moves to a first position or a second position.

[0015] Optionally, the drive assembly includes: The second hydraulic cylinder has its first end mounted on the chassis. The lifting assembly includes a first connecting plate, a connecting shaft, and a second connecting plate. A first end of the first connecting plate is hinged to a second end of a second hydraulic cylinder. The second end of the first connecting plate is fixedly connected to the side wall of the middle part of the connecting shaft. Each end of the connecting shaft is fixedly connected to the first end of a second connecting plate. The connecting shaft is detachably connected to the vehicle frame, and after being connected to the vehicle frame, the connecting shaft can rotate axially. The angle between the length direction of the first connecting plate and the length direction of the second connecting plate is 90° to 170°. The third connecting plate has its second end hinged to the first end of the second connecting plate, and its second end is connected to the shovel plate.

[0016] Optionally, the shovel plate includes: The panel is inclined at the first end near the belt conveyor, with a receiving port at the top and a material accumulation port at the bottom. The base plate is connected to the bottom of the panel, and its length is parallel to the horizontal plane. The back plate is connected to the top of the front panel on the side closest to the belt conveyor and to the bottom plate at the bottom; the front panel, bottom plate and back plate form a material trough at the material collection port. Baffles, multiple baffles are distributed along the length of the material accumulation trough to divide the material accumulation trough into multiple material accumulation sub-troughs.

[0017] A mining machine according to a second aspect of the present invention includes the shovel and conveying device of the first aspect and various embodiments.

[0018] One of the above technical solutions has at least the following advantages or beneficial effects: In a shovel and conveyor device according to an embodiment of the present invention, by setting a belt tensioning mechanism and enabling the belt tensioning mechanism to adjust the position of both sides of the belt on the belt conveyor, the belt tensioning mechanism can adjust the tension of each side of the belt on the belt conveyor, thereby enabling the belt conveyor on the shovel and conveyor device to have the function of adjusting the belt tension. It can be seen that the shovel and conveyor device provided by the present invention has the function of adjusting the belt tension because it is equipped with a belt tensioning mechanism that adjusts the tension of each side of the belt.

[0019] The mining machine provided in this embodiment of the invention is equipped with the shovel and conveyor device described above. Since the shovel and conveyor device has the above-mentioned technical effects, the mining machine equipped with the shovel and conveyor device should also have the corresponding technical effects. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a shovel and conveyor device according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the structure of a belt conveyor according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the structure of a first roller according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the structure of the first roller according to another embodiment of the present invention is shown; Figure 5 A schematic diagram of a belt tensioning mechanism according to an embodiment of the present invention installed on a belt conveyor is shown. Figure 6 A schematic diagram of a roller mechanism according to an embodiment of the present invention mounted on a frame is shown; Figure 7 A schematic diagram of the structure of a roller mechanism according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the drive assembly according to an embodiment of the present invention is shown; Figure 9 A schematic diagram of the shovel plate portion according to an embodiment of the present invention is shown.

[0021] [Explanation of Labels in the Attached Image] 1-Frame; 2-Shovel plate section, 201-Face plate, 202-Bottom plate, 203-Back plate, 204-Baffle plate, 2011-Receiving port, 2012-Accumulation port; 3-Belt conveyor, 301-Belt, 302-First roller, 303-Second roller, 304-Roller frame, 3021-Mandrel, 3022-Spoke plate, 3023-Semi-circular bar section, 3041-Mounting plate, 3042-Mounting beam, 3043-Ear plate; 4-Belt tensioning mechanism, 401-Slide rail, 402-Modible connecting plate, 403-First hydraulic cylinder; 5-Milling roller; 6-Idler mechanism, 601-Idler, 602-Idler frame, 603-Connecting rod, 604-Disc spring, 6021-Connecting part, 6022-Supporting part; 7-Drive assembly, 701-Second hydraulic cylinder, 702-Lifting assembly, 703-Third connecting plate, 7021-First connecting plate, 7022-Connecting shaft, 7023-Second connecting plate; 8-Limiting component, 801-First limiting block, 802-Second limiting block. Detailed Implementation

[0022] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] The following description, with reference to the accompanying drawings, describes some embodiments of the shoveling and mining equipment provided according to the present invention.

[0024] See Figures 1 to 9 An embodiment of the present invention provides a shovel and conveyor device applied to a mining machine, comprising a shovel plate section 2, a belt conveyor 3, and a belt tensioning mechanism 4. The shovel plate section 2 is movably mounted on a frame (not shown in the figure), and has a first position and a second position. When the shovel plate section 2 is in the first position, the bottom of the shovel plate section 2 is in contact with the working surface. When the shovel plate section 2 is in the second position, the bottom of the shovel plate section 2 is above the working surface and away from the working surface. The belt conveyor 3 is mounted on the frame, and the shovel plate section 2 is connected to the first end of the belt conveyor 3. The belt tensioning mechanism 4 is mounted on the belt conveyor 3 and is used to adjust the positions of the two sides of the second end of the belt conveyor 3 to adjust the tension of the belt 301 on the belt conveyor 3 on both sides respectively.

[0025] It should be noted that the milling drum 5 is located on the side of the shovel and conveyor device where the shovel plate part 2 is located, so that the material generated by the milling drum 5 milling the working surface is continuously transported to the subsequent transfer equipment via the belt conveyor 3 after passing through the shovel plate part 2. Specifically, when the milling drum 5 is in the traveling state, that is, when the milling drum 5 is in the non-working state, the shovel plate part 2 is in the second position to keep the bottom of the shovel plate part 2 from contacting the working surface; when the milling drum 5 is in the working state, the shovel plate part 2 is in the first position to maintain contact between the bottom of the shovel plate part 2 and the working surface.

[0026] In this embodiment, by setting a belt tensioning mechanism 4 and enabling the belt tensioning mechanism 4 to be adjusted to correspond to the positions of both sides of the second end of the belt conveyor 3, the tension of each side of the belt 301 on the belt conveyor 3 is adjusted, thereby enabling the belt tensioning mechanism 4 on the shovel and conveying device to have the function of adjusting the tension of the belt 301. It can be seen that the shovel and conveying device provided by the present invention has the function of adjusting the tension of the belt 301 because it is equipped with a belt tensioning mechanism 4 that adjusts the tension of each side of the belt 301.

[0027] In some possible implementations, see [link to relevant documentation]. Figure 2 The belt conveyor 3 includes a frame 1, a first roller 302, a second roller 303, and a drive assembly. A shovel plate 2 is mounted on the first end of the frame 1. The first roller 302 is mounted on the frame 1, located near the shovel plate 2, and its axial direction is parallel to the width direction of the frame 1. The second roller 303 is mounted on the second end of the frame 1, and its axial direction is parallel to the width direction of the frame 1. A belt 301 is fitted onto the first roller 302 and the second roller 303. The drive assembly is driven by the second roller 303 and is used to drive the second roller 303 to rotate axially. See also... Figure 3 and Figure 4 The first roller 302 includes a spindle 3021, spokes 3022 and semi-circular strips 3023. The two ends of the spindle 3021 are connected to the frame 1. The first side of each of the multiple spokes 3022 is connected to the side of the spindle 3021. The second side of each of the multiple spokes 3022 is connected to the semi-circular strips 3023. The length direction of each of the multiple spokes 3022 is parallel to the length direction of the spindle 3021. The multiple spokes 3022 are distributed on the side of the spindle 3021 with the axis of the spindle 3021 as the center.

[0028] In this embodiment, by selecting the first roller 302 to include a spindle 3021, a spoke 3022, and a semi-circular strip 3023, an axially connected discharge channel can be formed between the spindle 3021, the spoke 3022, and the belt 301 after the belt 301 is mounted on the first roller 302. This allows materials spilled onto the back of the belt 301 to automatically fall into the discharge channel and be continuously discharged from both sides of the discharge channel as the first roller 302 rotates, thus avoiding the problem of belt 301 running off-center and being damaged due to material accumulation.

[0029] In some possible implementations, see [link to relevant documentation]. Figure 5The second roller 303 is mounted on the roller frame 304; the belt tensioning mechanism 4 includes a slide rail 401, a movable connecting plate 402, and a first hydraulic cylinder 403. The slide rail 401 is arranged along the length of the frame 1, and the first end of the slide rail 401 is slidably connected to the side of the frame 1; the movable connecting plate 402 is hinged to the ear plate 3043 located on the roller frame 304, and the second end of the slide rail 401 is fixedly connected to the movable connecting plate 402; the first hydraulic cylinder 403 is arranged along the length of the frame 1, and the first end of the first hydraulic cylinder 403 is hinged to the frame 1, and the second end of the first hydraulic cylinder 403 is hinged to the movable connecting plate 402; the first hydraulic cylinder 403 is used to control the slide rail 401 to slide relative to the frame 1, so as to adjust the distance between the roller frame 304 and the frame 1.

[0030] Here, the frame 1 can be made of square tube, and the first end of the slide rail 401 can extend into the square tube and be slidably connected to the inner wall of the square tube.

[0031] It should be noted that the roller frame 304 includes a mounting plate 3041 and a mounting beam 3042. The two ends of the second roller 303 are rotatably connected to a mounting plate 3041 respectively. The two mounting plates 3041 are respectively installed at the two ends of the mounting beam 3042, and the axis of the mounting beam 3042 is parallel to the axis of the second roller 303. Two ear plates 3043 are connected to the side of the mounting beam 3042 away from the second roller 303. The positions of the two ear plates 3043 correspond to the positions of the two sides of the frame 1. The two movable connecting plates 402 are respectively hinged to the two ear plates 3043.

[0032] In this embodiment, there are two first hydraulic cylinders 403. The two first hydraulic cylinders 403 are respectively hinged to the two movable connecting plates 402. The two first hydraulic cylinders 403 are also respectively hinged to the two sides of the frame 1. A slide rail 401 is slidably connected to each side of the frame 1. The two slide rails 401 are respectively hinged to the two movable connecting plates 402. Therefore, by controlling the extension and retraction length of the two first hydraulic cylinders 403, the slide rails 401 corresponding to the two first hydraulic cylinders 403 can be controlled to slide on the frame 1 to adjust the distance between the roller frame 304 and the frame 1, thereby adjusting the tension of the side of the belt 301.

[0033] In this embodiment, by selecting the belt tensioning mechanism 4 as a structure including a slide rail 401, a movable connecting plate 402 and a first hydraulic cylinder 403, the slide rail 401 can be controlled to slide relative to the frame 1 by controlling the extension and retraction of the first hydraulic cylinder 403, thereby adjusting the distance between the side of the roller frame 304 and the frame 1, and thus adjusting the tension of one side of the belt 301, thereby achieving the correction and alignment of the belt 301 on the belt conveyor 3.

[0034] Furthermore, the belt tensioning mechanism 4 also includes a sensor group and a controller. The sensor group is located near both sides of the second roller 303. The sensor group is used to detect whether the belt 301 is running off to the left or right. The controller is used to extend the piston rod of the first cylinder 430 located on the left side of the belt 301 and / or retract the piston rod of the first cylinder 430 located on the right side of the belt when the sensor group detects that the belt 301 is running off to the left, until the sensor group can no longer detect that the belt 301 is running off to the left. The controller is used to extend the piston rod of the first cylinder 430 located on the right side of the belt 301 and / or retract the piston rod of the first cylinder 430 located on the left side of the belt when the sensor group detects that the belt 301 is running off to the right, until the sensor group can no longer detect that the belt is running off to the right.

[0035] Here, the sensor group may include two proximity sensors, which are respectively located on both sides of the second roller 303 and installed on the frame near the second roller 303. The proximity sensors are used to detect whether the position of the second roller 303 near the proximity sensor has moved within a preset range, so as to determine whether the belt 301 has deviated to the left or right.

[0036] Taking two proximity sensors, proximity sensor A and proximity sensor B, as an example, both proximity sensors A and B are positioned close to the frame of the second roller 303. The sensor group consisting of proximity sensors A and B, the second roller 303, and the belt tensioning mechanism 4 are arranged sequentially. Proximity sensor A is positioned near the first side (which can be the left side) of the second roller 303, and proximity sensor B is positioned near the second side (which can be the right side) of the second roller 303. When proximity sensor A detects that the first side of the second roller 303 has moved within a preset range (the belt deviates to the right), the controller controls the piston rod of the first cylinder 403 on the side opposite to the position of proximity sensor A (located on the right side of the belt) to extend. The extension of the piston rod of the first cylinder 403, corresponding to the position of the second side of the second roller 303 (located on the left side of the belt), is controlled by the proximity sensor A until the proximity sensor A can no longer detect that the position of the second roller 303 corresponding to the proximity sensor A is within a preset range. When the proximity sensor B detects that the second side of the second roller 303 has moved into the preset range (the belt deviates to the left), the controller controls the piston rod of the first cylinder 403 on the opposite side of the proximity sensor B to extend, that is, controls the piston rod of the first cylinder 403 corresponding to the position of the first side of the second roller 303 to extend until the proximity sensor B can no longer detect that the position of the second roller 303 near the proximity sensor B is within a preset range. Furthermore, when proximity sensor A detects that the first side of the second roller 303 has moved into a preset range (the belt deviates to the right), the piston rod of the first cylinder 403 on the same side as proximity sensor A can be retracted, that is, the piston rod of the first cylinder 403 corresponding to the first side position of the second roller 303 can be retracted until proximity sensor A can no longer detect that the position of the second roller 303 close to proximity sensor A is within the preset range; when proximity sensor B detects that the second side of the second roller 303 has moved into the preset range, the piston rod of the first cylinder 403 on the same side as proximity sensor B can be retracted by the controller, that is, the piston rod of the first cylinder 403 corresponding to the second end position of the second roller 303 can be retracted until proximity sensor B can no longer detect that the position of the second roller 303 close to proximity sensor B is within the preset range.

[0037] In this embodiment, by installing sensor groups on both sides of the belt 301, the left and right deviation of the belt 301 can be detected in real time. When the sensor group detects the left and right deviation of the belt 301, the piston rod of the first hydraulic cylinder 403 on the frame 1 is extended or retracted to self-adjust and dynamically adjust the belt 301, effectively solving the problem of difficulty in adjusting the belt 301 deviation in the narrow space of the belt conveyor 3.

[0038] Further, see Figure 6 and Figure 7 The shoveling device also includes a roller mechanism 6, which includes rollers 601, roller frames 602, and a buffer mechanism. The three rollers 601 are hinged in sequence and located between the upper and lower layers of the belt 301. The ends of the rollers 601 on both sides of the roller frame 602 are connected to the roller frame 602. The roller frame 602 is connected to the frame 1 through the buffer mechanism, which is used to buffer the impact force of the roller frame 602 connected to it on the frame 1.

[0039] In this embodiment, the idler frame 602 is connected to the frame 1 through a buffer mechanism. When the belt 301 is impacted by material, the buffer mechanism can buffer the impact force of the idler frame 602 connected to it on the frame 1, so as to improve the service life of the idler mechanism 6 and the frame 1.

[0040] Further, see Figure 7 The roller frame 602 includes a connecting part 6021 and a support part 6022 connected to each other. The first end of the connecting part 6021 is hinged to the end of the roller 601. At least a part of the connecting part 6021 is located on the outer side of the frame 1. The support part 6022 is located above the frame 1 and contacts the upper surface of the frame 1. The buffer mechanism includes a connecting rod 603 and a disc spring 604. The first end of the connecting rod 603 passes through the frame 1 and the connecting part 6021 in sequence and is fixed on the connecting part 6021. The part of the connecting rod 603 located on the side of the frame 1 away from the connecting part 6021 is fitted with the disc spring 604.

[0041] When the belt 301 is impacted by material, the middle idler 601, under the pressure of the material, pulls the idlers 601 on both sides, so that the connecting parts 6021 connected to the idlers 601 on both sides receive the tension of the idlers 601. At this time, the support part 6022, located above the frame 1 and in contact with the upper surface of the frame 1, can act as a fulcrum on the frame 1 as a lever. The connecting rod 603 moves axially away from the idler 601 as the connecting part 6021 moves. At the same time, the second end of the connecting rod 603 compresses the disc spring 604. Due to the nonlinear damping characteristics of the disc spring 604, it can efficiently absorb and dissipate the huge impact energy of the large flow of material falling, thereby avoiding the direct action of rigid impact on the idler 601 and the idler frame 602, and significantly improving the service life of the buffer idler 601 and the idler frame 602.

[0042] In some possible implementations, see [link to relevant documentation]. Figure 8 The shovel and transport device also includes a drive assembly 7, which is mounted on the frame and connected to the shovel plate 2. The drive assembly 7 is used to drive the shovel plate 2 to move relative to the frame so that the shovel plate 2 moves to a first position or a second position.

[0043] Here, a limiting component 8 is provided on the frame. The limiting component 8 includes a first limiting block 801 and a second limiting block 802. The first limiting block 801 is located on the side of the shovel plate portion 2 close to the frame, and the second limiting block 802 is located on the side of the shovel plate portion 2 away from the frame. When the shovel plate portion 2 moves relative to the frame 1 to a first position, the first limiting block 801 is used to restrict the shovel plate portion 2 to the first position. When the shovel plate portion 2 moves relative to the frame to a second position, the second limiting block 802 is used to restrict the shovel plate portion 2 to the second position.

[0044] In this embodiment, by installing the drive assembly 7 on the frame, the shovel plate 2 can switch between a first position and a second position under the drive of the drive assembly 7, so as to control the shovel plate 2 to move to the first position or the second position according to the operating state of the milling drum 5. That is, when the milling drum 5 is in the working state, the shovel plate 2 can be controlled to move to the first position by the drive assembly 7, and when the milling drum 5 is not in the working state, the shovel plate 2 can be controlled to move to the second position by the drive assembly 7.

[0045] It should be noted that when the shovel plate part 2 moves relative to the frame, the belt conveyor fixedly connected to the shovel plate part 2 also moves with the shovel plate part 2.

[0046] Furthermore, the drive assembly 7 includes a second hydraulic cylinder 701, a lifting assembly 702, and a third connecting plate 703. The first end of the second hydraulic cylinder 701 is mounted on the frame. The lifting assembly 702 includes a first connecting plate 7021, a connecting shaft 7022, and a second connecting plate 7023. The first end of the first connecting plate 7021 is hinged to the second end of the second hydraulic cylinder 701. The second end of the first connecting plate 7021 is fixedly connected to the side wall of the middle part of the connecting shaft 7022. Each end of the connecting shaft 7022 is fixedly connected to the first end of a second connecting plate 7023. The connecting shaft 7022 can be detachably connected to the frame, and after the connecting shaft 7022 is connected to the frame, the connecting shaft 7022 can rotate axially. The angle between the length direction of the first connecting plate 7021 and the length direction of the second connecting plate 7023 is 90° to 170°. The second end of the second connecting plate 7023 is hinged to the first end of the third connecting plate 703, and the second end of the third connecting plate 703 is connected to the shovel plate part 2.

[0047] Here, when the connecting shaft 7022 rotates axially, that is, when the lifting assembly 702 rotates... Figure 8 Point G is the rotation center. When rotating, the third connecting plate 703, which is hinged to the second connecting plate 7023 on the lifting assembly 702, is displaced as the lifting assembly 702 rotates, thereby causing the shovel plate part 2 connected to the third connecting plate 703 to move relative to the frame.

[0048] Specifically, when the piston rod in the second cylinder 701 extends, the first end of the first connecting plate 7021 moves away from the second cylinder 701 under the push of the piston rod, thereby causing the entire lifting assembly 702 to rotate counterclockwise around point G as the rotation center, so that the height of the second end of the second connecting plate 7023 is raised, thereby driving the overall height of the third connecting plate 703 connected to the second connecting plate 7023 to be raised, so that the shovel plate 2 moves upward with the third connecting plate 703 and away from the working surface.

[0049] When the piston rod in the second cylinder 701 shortens, the first end of the first connecting plate 7021 moves towards the second cylinder 701 under the push of the piston rod, thereby causing the entire lifting assembly 702 to rotate clockwise around point G as the rotation center, so that the height of the second end of the second connecting plate 7023 is reduced, thereby causing the overall height of the third connecting plate 703 connected to the second connecting plate 7023 to be reduced, so that the shovel plate 2 moves upward with the third connecting plate 703 and contacts the working surface.

[0050] In this embodiment, by selecting the drive assembly 7 as the above-described structure, the shovel plate 2 can move between the first position and the second position under the drive of the drive assembly 7. That is, the movement of the shovel plate 2 between the first position and the second position can be controlled by controlling the extension and retraction length of the second cylinder 701 in the drive assembly 7.

[0051] In some possible implementations, see [link to relevant documentation]. Figure 9 The shovel plate 2 includes a panel 201, a bottom plate 202, a back plate 203, and partitions 204. The panel 201 is inclined at the first end near the belt conveyor. A receiving port 2011 is opened at the top of the panel 201, and a material accumulation port 2012 is opened at the bottom of the panel 201. The bottom plate 202 is connected to the bottom of the panel 201, and the length direction of the bottom plate 202 is parallel to the horizontal plane. The top of the back plate 203 is connected to the side of the panel 201 near the belt conveyor, and the bottom is connected to the bottom plate 202. The panel 201, the bottom plate 202, and the back plate 203 form a material accumulation trough at the position of the material accumulation port 2012. Multiple partitions 204 are distributed along the length direction of the material accumulation trough to divide the material accumulation trough into multiple material accumulation sub-troughs.

[0052] Here, the opening of the receiving port 2011 is oriented towards the belt conveyor 3; the accumulation port 2012 can be a rectangular opening.

[0053] When the milling drum 5 rotates clockwise, it can mill the material on the working surface. The milled material is hoisted to the receiving port 2011 and then falls into the belt conveyor 3 near the shovel plate 2. The material can then be transported by the belt 301 on the belt conveyor 3 to the shovel plate 2 for unloading. During this process, since the material accumulation trough near the bottom of the panel 201 is divided into multiple material accumulation sub-troughs by multiple partitions 204, some material can be stably filled in each material accumulation sub-trough, so that the material in the multiple material accumulation sub-troughs forms a supplementary material layer. This transforms the direct sliding friction between the high wear area of ​​the panel 201 near its bottom and the material into friction between the materials, reducing the wear rate of the panel 201 and extending the service life of the shovel plate 2.

[0054] One embodiment of the present invention provides a mining machine, including the shovel and conveyor device as described in any of the above embodiments.

[0055] Here, the mining machine can be an open-pit mining machine.

[0056] Since the mining machine in this embodiment includes any of the shoveling and conveying devices in the first aspect described above, it has the beneficial effects of any of the above embodiments, which will not be repeated here.

[0057] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "exemplary embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A shovel and conveyor device, applied to a mining machine, characterized in that, include: A shovel plate is movably mounted on a frame, and the shovel plate has a first position and a second position; when the shovel plate is in the first position, the bottom of the shovel plate is in contact with the working surface; when the shovel plate is in the second position, the bottom of the shovel plate is above the working surface and away from the working surface. A belt conveyor is mounted on the vehicle frame, and the shovel plate is mounted on the first end of the belt conveyor. A belt tensioning mechanism is installed on the belt conveyor. The belt tensioning mechanism is used to adjust the position of both sides of the second end of the belt conveyor in order to adjust the tension of each side of the belt on the belt conveyor.

2. The shovel and conveying device according to claim 1, characterized in that, The belt conveyor includes: The frame body, wherein the shovel plate is mounted on the first end of the frame body; The first roller is mounted on the frame and positioned near the shovel plate, and the axial direction of the first roller is parallel to the width direction of the frame. The second roller is installed at the second end of the frame, and the axial direction of the second roller is parallel to the width direction of the frame; the belt is fitted onto the first roller and the second roller; A drive assembly is connected to the second roller drive, and the drive assembly is used to drive the second roller to rotate axially. The first roller includes a spindle, spokes, and semi-circular strips. The two ends of the spindle are connected to the frame. The first side of each of the spokes is connected to the side of the spindle. The second side of each of the spokes is connected to the semi-circular strips. The length direction of each of the spokes is parallel to the length direction of the spindle. The spokes are distributed on the side of the spindle with the axis of the spindle as the center.

3. The shoveling and conveying device according to claim 2, characterized in that, The second roller is mounted on the roller frame; the belt tensioning mechanism includes: A slide rail is provided along the length of the frame, and the first end of the slide rail is slidably connected to the side of the frame. The movable connecting plate is hinged to the ear plate located on the roller frame, and the second end of the slide rail is fixedly connected to the movable connecting plate; A first hydraulic cylinder is provided along the length of the frame. The first end of the first hydraulic cylinder is hinged to the frame, and the second end of the first hydraulic cylinder is hinged to the movable connecting plate. The first hydraulic cylinder is used to control the slide rail to slide relative to the frame in order to adjust the distance between the rolling frame and the frame.

4. The shovel and conveyor device according to claim 3, characterized in that, The belt tensioning mechanism further includes a sensor group and a controller. The sensor group is disposed near both sides of the second roller. The sensor group is used to detect whether the belt is misaligned to the left or right. The controller is used to control the piston rod of the first cylinder located on the left side of the belt to extend and / or the piston rod of the first cylinder located on the right side of the belt to retract when the sensor group detects that the belt is misaligned to the left, until the sensor group can no longer detect the belt misalignment to the left. The controller is also used to control the piston rod of the first cylinder located on the right side of the belt to extend and / or the piston rod of the first cylinder located on the left side of the belt to retract when the sensor group detects that the belt is misaligned to the right, until the sensor group can no longer detect the belt misalignment to the right.

5. The shovel and conveyor device according to claim 2, characterized in that, It also includes a roller mechanism, which comprises: The three idlers are hinged in sequence and located between the upper and lower layers of the belt; The roller frame is provided, and the ends of the rollers on both sides are connected to the roller frame. A buffer mechanism is provided, wherein the roller frame is connected to the frame body via the buffer mechanism, and the buffer mechanism is used to buffer the impact force of the roller frame connected to it on the frame body.

6. The shovel and conveyor device according to claim 5, characterized in that, The idler frame includes a connecting part and a supporting part that are connected to each other. The first end of the connecting part is hinged to the end of the idler roller. At least a portion of the connecting part is located on the outer side of the frame. The supporting part is located above the frame and contacts the upper surface of the frame. The buffer mechanism includes a connecting rod and a disc spring. The first end of the connecting rod passes through the frame and the connecting part in sequence and is then fixed to the connecting part. The portion of the connecting rod located on the side of the frame away from the connecting part is fitted with the disc spring.

7. The shovel and conveyor device according to claim 2, characterized in that, It also includes a drive assembly mounted on the frame and connected to the shovel plate, the drive assembly being used to drive the shovel plate relative to the frame so that the shovel plate moves to the first position or the second position.

8. The shovel and conveyor device according to claim 7, characterized in that, The drive assembly includes: The second hydraulic cylinder has its first end mounted on the vehicle frame; The lifting assembly includes a first connecting plate, a connecting shaft, and a second connecting plate. A first end of the first connecting plate is hinged to a second end of a second hydraulic cylinder. The second end of the first connecting plate is fixedly connected to a side wall in the middle of the connecting shaft. Each end of the connecting shaft is fixedly connected to a first end of a second connecting plate. The connecting shaft is detachably connected to the vehicle frame, and after being connected to the vehicle frame, the connecting shaft is axially rotatable. The angle between the length direction of the first connecting plate and the length direction of the second connecting plate is 90° to 170°. The third connecting plate has its second end hinged to the first end of the second connecting plate, and the second end of the third connecting plate is connected to the shovel plate portion.

9. The shovel and conveyor device according to any one of claims 1 to 8, characterized in that, The shovel plate includes: The panel is inclined near the first end of the belt conveyor, and a receiving port is opened at the top of the panel and a material accumulation port is opened at the bottom of the panel; A base plate is connected to the bottom of the panel, and the length direction of the base plate is parallel to the horizontal plane; The back plate is connected at the top to the side of the front panel near the belt conveyor and at the bottom to the bottom plate; the front panel, bottom plate and back plate form a material trough at the material inlet position; A plurality of partitions are distributed along the length of the material accumulation trough to divide the material accumulation trough into a plurality of material accumulation sub-troughs.

10. A mining machine, characterized in that, Includes the shovel and conveyor device as described in any one of claims 1 to 9.

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