Movable material guiding device of spiral roller

Abstract

The utility model provides a spiral roller movable material guiding device which comprises a rocker arm and a spiral roller, the spiral roller is installed on the rocker arm, and a movable material guiding plate capable of overturning around a center shaft of the spiral roller is arranged at the top end of the rocker arm. The movable guide plate comprises a fan-shaped connecting plate movably connected with the top end of the rocker arm and an arc-shaped cover plate connected to the outer end of the fan-shaped connecting plate, and the arc-shaped cover plate is arranged above the peripheral face of the spiral roller in a covering mode; an arc-shaped flow guide space used for guiding mineral aggregate to fall is formed between the arc-shaped cover plate and the peripheral face of the spiral roller. The device can be matched with the drum-type coal mining machine needing lifting operation, the coal blocking capacity and the material guiding effect of the drum-type coal mining machine are improved, and cut mineral aggregates are prevented from splashing.

Description

Technical Field

[0001] The utility model relates to the field of open-pit mining machines, in particular to a spiral drum movable material guiding device. Background Art

[0002] The drum coal shearer is currently the most important working equipment in the fully mechanized mining face. The spiral drum is the key component and working mechanism for the coal shearer to cut and drop coal. The spiral drum flange is connected to the square shaft of the drive disc on the rocker arm of the coal shearer to transmit the movement and power of the coal shearer to the drum. The large-diameter drum has a large radial gap between the inner cavity of the drum and the planetary head of the coal shearer. When cutting coal, coal powder is easy to invade it. Therefore, an integral closed structure coal baffle is generally installed at the lower end of the drum to reduce the invasion of coal powder, but it is still necessary to clear the blockage regularly.

[0003] In order to better clear the blockage, the utility model patent with the authorization announcement number CN211598649U discloses a dustproof plate for the spiral drum of the coal mining machine, which mainly includes a dustproof ring and a reinforcement block. The dustproof ring is in the shape of a ring, and the inner diameter is determined by the diameter of the planetary head matched with it. The outer diameter is determined according to the inner diameter of the drum of the coal mining machine. Four waist-shaped through grooves with arcs are evenly distributed along the outer circle. The size of the waist-shaped through grooves should be convenient for the high-pressure water gun nozzle to pass through; the reinforcement block is trapezoidal, with a total of eight blocks. During assembly, the eight reinforcement blocks are first evenly welded on the dustproof ring along the outer circle of the dustproof ring, and then welded to the lower end of the inner wall of the drum. When a certain amount of coal powder accumulates between the inner wall of the spiral drum of the coal mining machine and the planetary head, the high-pressure water gun can be used to use the waist-shaped through groove of the dustproof ring to flush the coal powder in the barrel cavity without disassembling the drum, thereby increasing the service life of the drum and the planetary head and improving the working efficiency of the coal mining machine. However, the dust shield of the spiral drum of the coal mining machine still adopts an integral fixed installation, which is not suitable for guiding materials in a drum-type coal mining machine that needs to be lifted. Utility Model Content

[0004] In order to match the drum coal mining machine that needs to be lifted, improve the coal blocking capacity and material guiding effect of the drum coal mining machine, and prevent the splashing of the cut ore, the technical solution adopted by the utility model is: a spiral drum movable material guiding device, including a rocker arm and a spiral drum, the spiral drum is installed on the rocker arm, and the top of the rocker arm is provided with a movable material guiding plate that can be turned around the central axis of the spiral drum;

[0005] The movable material guide plate includes a fan-shaped connecting plate movably connected to the top of the rocker arm and an arc-shaped cover plate connected to the outer end of the fan-shaped connecting plate. The arc-shaped cover plate is arranged above the outer circumferential surface of the spiral drum. An arc-shaped guide space for guiding the falling of mineral materials is formed between the arc-shaped cover plate and the outer circumferential surface of the spiral drum.

[0006] Based on the above, the fan-shaped connecting plate is provided with a mounting hole for connecting the top end of the rocker arm and a positioning mechanism for flipping and positioning.

[0007] Based on the above, the positioning mechanism includes a tension spring, a positioning pin, a positioning column or a damper.

[0008] Based on the above, the outer circumferential length of the arc-shaped cover plate is smaller than the outer circumferential length of the spiral drum.

[0009] Based on the above, the curvature of the arc-shaped cover plate matches the curvature of the outer circumferential surface of the spiral drum.

[0010] Based on the above, a height adjustment cylinder for connecting to a crawler walking device is disposed at the bottom end of the rocker arm, and a drum driving motor for driving the spiral drum to rotate is disposed at the other end of the rocker arm.

[0011] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the spiral drum movable material guiding device provided by the utility model has rocker arms that can be raised and lowered at the front and rear ends of the crawler walking device, and a spiral drum and a movable material guiding plate whose movable part is covered on the outer periphery of the spiral drum are installed on the rocker arms. The movable material guiding plate can be used to timely guide the mineral materials cut by the spiral drum to prevent them from splashing randomly.

[0012] At the same time, since the movable guide plate can be turned over in time according to the lifting state of the rocker arm, the forward cutting and reverse cutting working processes of the spiral drum are matched.

[0013] Therefore, the spiral drum movable material guiding device can match the drum coal mining machine that needs to be lifted and lowered, improve the coal blocking capacity and material guiding effect of the drum coal mining machine, and prevent the splashing of the cut ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 and Figure 2 The utility model is a schematic diagram of the installation position of the spiral drum movable material guiding device provided by the utility model.

[0015] Figure 3 The utility model is a structural schematic diagram of the spiral drum movable material guiding device provided by the utility model when it is in the state of being raised to cut mineral materials.

[0016] Figure 4 The utility model is a structural schematic diagram of the spiral drum movable material guiding device provided by the utility model when it is in the state of falling and cutting mineral materials.

[0017] Figure 5 The utility model is a schematic diagram of the side structure of the spiral drum movable material guiding device provided by the utility model.

[0018] In the figure: 1. crawler walking device; 2. star wheel shovel; 3. scraper conveyor; 4. left spiral roller, 5. right spiral roller; 6. rocker arm; 7. movable guide plate; 71. arc-shaped cover plate; 72. fan-shaped connecting plate; 73. mounting hole; 8. rocker arm hinge end; 9. roller drive motor. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0020] Example 1

[0021] This embodiment provides a spiral roller movable material guiding device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a crawler walking device 1, a rocker arm 6 and a spiral drum, wherein the spiral drum is mounted on the top of the rocker arm 6, and the rocker arm 6 is mounted on the crawler walking device 1. A movable guide plate 7 that can be turned around the central axis of the spiral drum is arranged on the top of the rocker arm 6. According to the distribution position, the spiral drum can be divided into a left spiral drum 4 and a right spiral drum 5.

[0022] The movable guide plate 7 includes a fan-shaped connecting plate 72 movably connected to the top of the rocker arm 6 and an arc-shaped cover plate 71 connected to the outer end of the fan-shaped connecting plate 72. The arc-shaped cover plate 71 is arranged above the outer circumference of the spiral drum. An arc-shaped guide space for guiding the falling of mineral materials is formed between the arc-shaped cover plate and the outer circumference of the spiral drum.

[0023] The fan-shaped connecting plate is provided with a mounting hole 73 for connecting the top end of the rocker arm and a positioning mechanism for flipping and positioning.

[0024] In this embodiment, the positioning mechanism includes a tension spring, a positioning pin, a positioning column or a damper.

[0025] Example 2

[0026] This embodiment provides a spiral drum movable material guiding device, which is different from the embodiment 1 mainly in that in this embodiment: the rocker arms are respectively installed on the inner sides of the front and rear ends of the crawler walking device so as to be liftable by adjusting the oil cylinder, and the top of the rocker arms is respectively provided with a roller driving motor 9 for driving the spiral drum to rotate. The bottom end of the rocker arm forms a rocker arm hinge end 8, and the rocker arm hinge end 8 is hinged to the crawler walking device.

[0027] Example 3

[0028] This embodiment provides a spiral drum movable material guiding device, which is different from the embodiment 2 mainly in that in this embodiment: the specifications of the pair of spiral drums are the same, the specifications of the pair of rocker arms are the same. The curvature of the arc-shaped cover plate is consistent with the curvature of the outer circumference of the spiral drum. The pair of rocker arms are installed at the same height on the crawler walking device.

[0029] Specifically, the front and rear ends of the crawler walking device are also provided with star wheel shovel boards 2 which can be lifted and lowered by shovel board lifting cylinders. The star wheel shovel board 2 is located below the spiral drum, and the discharge end of the star wheel shovel board is connected with a scraper conveyor 3, and the discharge end of the scraper conveyor 3 is provided with a belt conveyor. The star wheel shovel board includes a shovel board, a motor seat, a driving motor, a rotating disk, a left star wheel, and a right star wheel; the shovel board is hingedly mounted on the crawler walking device, the motor seat is mounted on the back of the shovel board, the driving motor is mounted on the motor seat, and the rotating disk is connected to the output shaft of the driving motor; the left star wheel and the right star wheel are mounted on the rotating disk, and the materials are pushed onto the scraper conveyor through the rotation of the left star wheel and the right star wheel.

[0030] Specifically, this embodiment provides a spiral drum movable material guiding device for mining coal, and the specific steps are as follows: during the first mining, the crawler walking device is first moved to one side parallel to the position of the ore mining surface, and then an oblique cutting method is used to cut in, and the coal is cut normally after the crawler walking device body is adjusted.

[0031] When cutting coal normally, the rocker arm at the front end of the crawler walking device rises to cut the upper layer of ore, and the rocker arm at the rear end of the crawler walking device falls to cut the lower layer of ore, and the two movable guide plates are rotated to the rear side of the forward direction of the drum.

[0032] At the same time, the star wheel shovel at the rear end of the crawler walking device is closed, and the star wheel shovel at the front end is opened. The upper layer of the cut material is collected by the star wheel shovel at the front end, and the lower layer of the cut material is collected when returning;

[0033] On the return trip, the lifting and lowering states of a pair of rocker arms and the lifting and closing states of a pair of star wheel shovels are interchanged, and the mining layer is directly withdrawn and the cut ore is collected and transported, and the two movable guide plates are rotated to the rear side of the drum's forward direction. On the return trip, the star wheel shovel collects the reserved lower layer ore and the cut upper layer ore together.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A spiral drum movable material guiding device, characterized in that: It comprises a rocker arm and a spiral drum, wherein the spiral drum is mounted on the rocker arm, and a movable material guide plate which can be turned around the central axis of the spiral drum is arranged at the top of the rocker arm; The movable material guide plate includes a fan-shaped connecting plate movably connected to the top of the rocker arm and an arc-shaped cover plate connected to the outer end of the fan-shaped connecting plate. The arc-shaped cover plate is arranged above the outer circumferential surface of the spiral drum. An arc-shaped guide space for guiding the falling of mineral materials is formed between the arc-shaped cover plate and the outer circumferential surface of the spiral drum.

2. The spiral drum movable material guiding device according to claim 1, characterized in that: The fan-shaped connecting plate is provided with a mounting hole for connecting the top end of the rocker arm and a positioning mechanism for flipping and positioning.

3. The spiral drum movable material guiding device according to claim 2 is characterized in that: The positioning mechanism includes a tension spring, a positioning pin, a positioning column or a damper.

4. The spiral drum movable material guiding device according to claim 1, 2 or 3, characterized in that: The length of the outer circumference of the arc-shaped cover plate is smaller than the length of the outer circumference of the spiral drum.

5. The spiral drum movable material guiding device according to claim 4, characterized in that: The curvature of the circular arc cover plate matches the curvature of the outer peripheral surface of the spiral drum.

6. The spiral drum movable material guiding device according to claim 5, characterized in that: The bottom end of the rocker arm is provided with a height adjustment cylinder for connecting to a crawler walking device, and the other end of the rocker arm is provided with a drum driving motor for driving the spiral drum to rotate.

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