Coal bunker dredging device

Abstract

The invention relates to the technical field of coal bunker equipment, in particular to a coal bunker dredging device which comprises a support arranged on an upper opening of a coal bunker and further comprises a linear driving mechanism, a guide mechanism and a dredging rod, the linear driving mechanism and the guide mechanism are fixed to the support, the linear driving mechanism comprises a power piece and a linear transmission piece, and the power piece is connected with the guide mechanism through a connecting rod. The power piece is connected with the linear transmission piece, one end of the dredging rod is connected with the linear transmission piece, the other end of the dredging rod is inserted into the coal bunker, the linear driving mechanism drives the dredging rod to reciprocate, the guide mechanism is matched with the dredging rod to guide the dredging rod to move, and the dredging rod can longitudinally penetrate through the whole coal bunker downwards from the upper portion of the coal bunker. The material dredging device can reciprocate up and down under the driving of the linear driving mechanism, can effectively dredge materials with different heights, and is high in efficiency and good in dredging effect.

Description

Technical Field

[0001] The present invention relates to the technical field of coal bunker equipment, and in particular to a coal bunker dredging device. Background Art

[0002] In the field of coal mine production and circulation, coal bunkers are one of the main material (coal, gangue, etc.) storage facilities. In the process of storing materials in coal bunkers, bunker overflow, bunker blockage and bunker collapse often occur, affecting the normal storage and transportation of materials. In particular, bunker collapse will bury equipment and personnel under the bunker, seriously endangering the safety of personnel and equipment.

[0003] The existing methods for solving bulges and blockages in coal bunkers are to use manual or air cannons for dredging. The air cannons are fixed in position and cannot dredge bulges or blockages in the middle of coal bunkers. Manual dredging is not only labor-intensive, but also often has great safety hazards and is very likely to cause casualties.

[0004] The cause of the bunker collapse accident is that moisture accumulates in the coal bunker and cannot be removed in time, forming water-coal, which causes a sudden bunker collapse when the bunker is released. There are currently no effective means and equipment to prevent and control it.

[0005] Therefore, based on the above reasons, a coal bunker dredging device is badly needed. Summary of the Invention

[0006] The present invention aims to solve the problems of bunker bloating, bunker blockage and bunker collapse that the existing technology cannot solve safely and reliably, and provides a coal bunker dredging device that can solve the above problems in real time, reliably and safely.

[0007] The technical solution of the present invention is: a coal bunker dredging device, including a support, the support is arranged at the upper mouth of the coal bunker, and also includes a linear drive mechanism, a guide mechanism and a dredging rod, the linear drive mechanism and the guide mechanism are fixed on the support, the linear drive mechanism includes a power part and a linear transmission part, the power part is connected to the linear transmission part, one end of the dredging rod is connected to the linear transmission part, and the other end is inserted into the coal bunker, the linear drive mechanism drives the dredging rod to reciprocate, and the guide mechanism cooperates with the dredging rod to guide the movement of the dredging rod.

[0008] The coal bunker dredging device also includes a clamping mechanism, which is arranged on a support. The clamping mechanism includes a clamping claw and a clamping claw driving member. The clamping claw driving member is connected to the clamping claw. The clamping claw driving member can drive the clamping claw to clamp and hold the dredging rod or release it. When the dredging rod needs to be installed, extended or removed, the dredging rod can be clamped by the clamping mechanism to perform the installation, extension or removal operation of the dredging rod. When the dredging rod moves, the tightening mechanism releases the dredging rod.

[0009] The guiding mechanism includes a guiding cylinder, the dredging rod passes through the guiding cylinder and is coupled with the inner wall of the guiding cylinder, and the guiding cylinder plays a guiding role for the dredging rod.

[0010] The guide mechanism includes a guide frame and a slider. The guide frame is arranged on a support. The slider is coupled with the guide frame to realize linear motion. The slider is connected to or integrated with the linear transmission part of the linear drive mechanism. A connecting part is provided on the slider. The connecting part is provided with a rod connecting end. One end of the dredging rod is connected to the rod connecting end of the connecting part. Under the drive of the linear drive mechanism, the slider moves linearly along the guide frame.

[0011] It also includes an air cannon, wherein the connecting piece is provided with a tube connecting end, the tube connecting piece is connected to the nozzle of the air cannon, and a connecting hole is provided between the rod connecting end and the tube connecting end for compressed gas to pass through.

[0012] The dredging rod is a hollow structural rod with multiple sections connected end to end, which not only reduces the weight of the dredging rod, but also forms a passage for gas or water.

[0013] The head of the dredging rod inserted into the coal bunker end is provided with a dredging head.

[0014] The dredging rod and / or dredging head is radially provided with a through hole connected to the hollow structure, water can enter the hollow structure through the through hole, and the compressed air of the air cannon can also be sprayed into the coal bunker through the through hole through the hollow structure.

[0015] The through hole is slanted downward from inside to outside, and the angle between the through hole axis and the dredging rod axis is smaller than the accumulation angle of the material in the coal bunker. A blocking boss is provided at the bottom of the through hole to prevent the material in the coal bunker from entering the through hole and blocking the through hole.

[0016] The coal bunker dredging device also includes a rotary drive mechanism, which is installed on a support or a slider. The rotary drive mechanism is coupled to the dredging rod to drive the dredging rod to rotate around the axis, reducing the resistance of the dredging rod during reciprocating motion and achieving a better dredging effect.

[0017] The rotary drive mechanism includes a power member and a rotary transmission member, the power member is connected to the rotary transmission member, and the rotary transmission member is coupled to the dredging rod.

[0018] The power parts include hydraulic cylinders, air cylinders, electric cylinders, hydraulic motors or electric motors.

[0019] The linear transmission member includes a connecting block, a crank slider motion pair, a gear rack pair or a screw nut motion pair.

[0020] The rotating transmission member includes a rocker, a gear pair, a worm gear pair, a chain transmission pair or a belt transmission pair.

[0021] The dredging rod or dredging head is made of stainless steel or high-strength engineering plastics.

[0022] The beneficial effects of the present invention are:

[0023] 1. The dredging rod can run through the entire coal bunker from the top to the bottom. Driven by the linear drive mechanism, it can reciprocate up and down, and can effectively dredge materials at different heights with high efficiency and good dredging effect.

[0024] 2. Equipped with a clamping mechanism to facilitate the installation, extension or removal of the dredging rod.

[0025] 3. Equipped with a rotary drive mechanism, the dredging rod can perform a composite motion of linear reciprocating and rotation, reducing movement resistance and improving the dredging effect.

[0026] 4. The dredging rod is a hollow structure with a through hole connected to the outside. The compressed air of the air cannon can be released into the coal bunker through the through hole, which has the effect of impacting and breaking the arch of the materials in the coal bunker. At the same time, it can also dredge the through hole to ensure the connection between the through hole and the hollow structure.

[0027] 5. The water in the coal bunker material can enter the hollow structure through the through holes and be transported to the lower part of the coal bunker, thus avoiding the accumulation of moisture in the material and the occurrence of coal-water bunker collapse.

[0028] 6. The through hole on the dredging rod is tilted downward and a blocking boss is added at the bottom to prevent materials in the coal bunker from entering the through hole and blocking the through hole. At the same time, the boss increases the effective area of ​​the dredging rod, achieving a better dredging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic structural diagram of a coal bunker dredging device in Example 1;

[0030] Figure 2 is a schematic structural diagram of another linear drive mechanism in Example 1;

[0031] Figure 3 is a structural diagram of another linear drive mechanism in Example 1;

[0032] Figure 4 is a schematic structural diagram of another linear drive mechanism in Example 1;

[0033] Figure 5 This is a schematic structural diagram of a coal bunker dredging device in Example 2;

[0034] Figure 6 is a schematic structural diagram of the dredging rod in Example 2;

[0035] Figure 7 It is a structural schematic diagram of the dredging head in Example 2;

[0036] Figure 8This is a schematic structural diagram of a coal bunker dredging device in Example 3;

[0037] Figure 9 is a structural schematic diagram of a rotary drive mechanism in Example 3;

[0038] Figure 10 is a structural diagram of another rotary drive mechanism in Example 3;

[0039] Figure 11 is a structural schematic diagram of another rotary drive mechanism in Example 3;

[0040] Figure 12 is a structural diagram of another rotary drive mechanism in Example 3;

[0041] In the figure: 1-coal bunker, 2-support, 3-linear drive mechanism, 4-guide mechanism, 4.1-guide cylinder, 4.2-guide frame, 4.3-slider, 4.31-connector, 4.311 rod connection end, 4.312-pipe connection end, 5-dredging rod, 6-power part, 6.1-hydraulic cylinder, 6.2-air cylinder, 6.3-electric cylinder, 6.4-hydraulic motor, 6.5-electric motor, 7-linear transmission part, 7.1-connecting block, 7.2-crank slider motion pair, 7.3-gear rack pair, 7.4-screw-nut kinematic pair, 8-clamping mechanism, 8.1-clamping jaw, 8.2-clamping jaw drive, 9-air cannon, 10-dredging head, 10.1-outer cone, 10.2-inner cone, 10.3, necking section, 11-hollow structure, 12-through hole, 13-shielding boss, 14-rotational drive mechanism, 15-rotational transmission part, 15.1-rocker, 15.2-gear pair, 15.3-worm gear pair, 15.4-chain transmission pair, α-angle α between the through hole axis and the dredging rod axis. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments and drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] Example 1

[0044] like Figures 1 to 4As shown, a coal bunker dredging device includes a support 2, which is arranged at the upper mouth of the coal bunker 1, and also includes a linear drive mechanism 3, a guide mechanism 4 and a dredging rod 5. The linear drive mechanism 3 and the guide mechanism 4 are fixed on the support 2. The linear drive mechanism 3 includes a power part 6 and a linear transmission part 7. The power part 6 is connected to the linear transmission part 7. One end of the dredging rod 5 is connected to the linear transmission part 7, and the other end is inserted into the coal bunker 1. The linear drive mechanism 3 drives the dredging rod 5 to reciprocate, and the guide mechanism 4 cooperates with the dredging rod 5 to guide the movement of the dredging rod 5.

[0045] The guide mechanism 4 includes a guide cylinder 4.1. The dredging rod 5 passes through the guide cylinder 4.1 and is coupled to the inner wall of the guide cylinder 4.1. The guide cylinder 4.1 guides the dredging rod 5.

[0046] The power part 6 includes a hydraulic cylinder 6.1, a hydraulic motor 6.4 or an electric motor 6.5.

[0047] The linear transmission member 7 comprises a connecting block 7.1, a crank slider kinematic pair 7.2, a gear rack pair 7.3 or a screw nut kinematic pair 7.4.

[0048] In order to prevent the dredging rod 5 from rusting, the dredging rod 5 is made of stainless steel or high-strength engineering plastics.

[0049] During use, the dredging rod 5 is inserted into the coal bunker 1 from top to bottom from the upper opening of the coal bunker 1. When the material in the coal bunker 1 is blocked or overflowing, the linear drive mechanism 3 drives the dredging rod 5 to move up and down under the guidance of the guide mechanism 4, thereby achieving the dredging effect.

[0050] Example 2

[0051] like Figures 5 to 7 As shown, a coal bunker dredging device includes a support 2, which is arranged at the upper mouth of the coal bunker 1, and also includes a linear drive mechanism 3, a guide mechanism 4 and a dredging rod 5. The linear drive mechanism 3 and the guide mechanism 4 are fixed on the support 2. The linear drive mechanism 3 includes a power part 6 and a linear transmission part 7. The power part 6 is connected to the linear transmission part 7. One end of the dredging rod 5 is connected to the linear transmission part 7, and the other end is inserted into the coal bunker 1.

[0052] The coal bunker dredging device also includes a clamping mechanism 8, which is arranged on the support 2, at the lower part of the linear drive mechanism 3. The clamping mechanism 8 includes a clamping claw 8.1 and a clamping claw driving member 8.2. The clamping claw driving member 8.2 is connected to the clamping claw 8.1. The clamping claw driving member 8.2 can drive the clamping claw 8.1 to clamp and hold the dredging rod 5 or release it. When the dredging rod 5 needs to be installed, extended or removed, the dredging rod 5 can be clamped by the clamping mechanism 8 to perform the installation, extension or removal operation of the dredging rod 5. When the dredging rod 5 moves, the tightening mechanism releases the dredging rod 5.

[0053] The guide mechanism 4 includes a guide frame 4.2 and a slider 4.3. The guide frame 4.2 is arranged on the support 2. The slider 4.3 is coupled to the guide frame 4.2 to realize linear motion. The slider 4.3 is connected to the linear transmission member 7 of the linear drive mechanism 3 or is integrated. The slider 4.3 is provided with a connecting member 4.31, and the connecting member 4.31 is provided with a rod connecting end 4.311. One end of the dredging rod 5 is connected to the rod connecting end 4.311 of the connecting member 4.31. Under the drive of the linear drive mechanism 3, the slider 4.3 moves linearly along the guide frame 4.2.

[0054] It also includes an air cannon 9, the connecting piece 4.31 is provided with a tube connecting end 4.312, the tube connecting piece 4.31 is connected to the nozzle of the air cannon 9, and a connecting hole 12 is provided between the rod connecting end 4.311 and the tube connecting end 4.312 for compressed gas to pass through.

[0055] The dredging rod 5 is a hollow structural rod with multiple sections connected end to end, which not only reduces the weight of the dredging rod 5, but also forms a passage for gas or water.

[0056] The head of the dredging rod 5 inserted into the coal bunker end is provided with a dredging head 10. The dredging head 10 is provided with an outer cone 10.1 and an inner cone 10.2. The outer cone 10.1 can reduce the resistance of the dredging rod inserted into the material, and the inner cone 10.2 can reduce the resistance of the compressed gas injection. The dredging head 10 is provided with an inverted conical necking section 10.3, which is used to accelerate the airflow and use the narrow tube effect to increase the injection speed of the airflow.

[0057] The dredging rod 5 and / or dredging head 10 is radially provided with a through hole 12 connected to the hollow structure 11. Water can enter the hollow structure 11 through the through hole 12, and the compressed air of the air cannon 9 can also be sprayed into the coal bunker through the through hole 12 through the hollow structure 11.

[0058] The through hole 12 is slanted downward from the inside to the outside, and the angle α between the through hole axis and the dredging rod axis is smaller than the accumulation angle of the material in the coal bunker. A blocking boss 13 is provided at the lower part of the through hole 12 to prevent the material in the coal bunker from entering the through hole 12 and blocking the through hole 12.

[0059] During use, the linear drive mechanism 3 drives the slider 4.3 to lift, and the first section of the dredging rod 5 is placed in the clamping mechanism 8. The clamping mechanism 8 clamps the first section of the dredging rod 5, and connects the second section of the dredging rod 5 with the first section of the dredging rod 5 and the rod connecting end 4.311 on the connecting piece 4.31. The clamping mechanism 8 is released, and the linear drive mechanism 3 drives the slider 4.3 to descend. The clamping mechanism 8 clamps the second section of the dredging rod 5, and unties the connection between the second section of the dredging rod 5 and the rod connecting end 4.311 on the connecting piece 4.31. The linear drive mechanism 3 drives the slider 4.3 to lift, and connects the third section of the dredging rod 5 with the second section of the dredging rod 5 and the rod connecting end 4.311 on the connecting piece 4.31, and completes the installation of the dredging rod 5 in sequence until the required length is reached.

[0060] The moisture in the material in the coal bunker 1 can enter the hollow structure 11 of the dredging rod 5 through the through hole 12 on the dredging rod 5, and the water is transported to the lower part of the coal bunker 1 through the hollow structure 11 of the dredging rod 5 for discharge, thereby avoiding the accumulation of moisture in the coal bunker material and causing water-coal bunker collapse.

[0061] When the material in the coal bunker 1 needs to be dredged, the clamping mechanism 8 is released, and the linear drive mechanism 3 drives the slider 4.3 to drive the dredging rod 5 to move up and down to achieve the dredging effect.

[0062] The power member 6 is a cylinder 6.2, which can also be a hydraulic cylinder or an electric cylinder.

[0063] The rest is the same as in Example 1.

[0064] Example 3

[0065] like Figures 8 to 12 As shown, the coal bunker dredging device also includes a rotary drive mechanism 14, which is installed on the support 2 or the slider 4.3. The rotary drive mechanism 14 is coupled to the dredging rod 5 or the rotary drive mechanism 14 is coupled to the connecting piece 4.31 to drive the dredging rod 5 to rotate around the axis, thereby reducing the resistance of the dredging rod 5 during reciprocating motion and achieving a better dredging effect.

[0066] The rotary drive mechanism 14 includes a power member 6 and a rotary transmission member 15. The power member 6 is connected to the rotary transmission member 15. The rotary transmission member 15 is coupled to the dredging rod 5 or the rotary transmission member 15 is coupled to the connecting member 4.31.

[0067] The power member 6 is an electric cylinder 6.3, a hydraulic motor 6.4 or an electric motor 6.5, and may also be a hydraulic cylinder or a pneumatic cylinder.

[0068] The rotating transmission member 15 includes a rocker arm 15.1, a gear pair 15.2, a worm gear pair 15.3, and a chain transmission pair 15.4, which may also be a belt transmission pair.

[0069] During operation, the linear drive mechanism 3 drives the dredging rod 5 to reciprocate up and down while the rotary drive mechanism 14 drives the dredging rod 5 to rotate. The dredging rod 5 can perform a composite motion of linear reciprocating and rotation, reducing motion resistance and improving the dredging effect.

[0070] The rest is the same as Example 2.

[0071] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A coal bunker dredging device, comprising a support (2), the support (2) being arranged at the upper opening of the coal bunker (1), characterized in that: The invention also includes a linear drive mechanism (3), a guide mechanism (4) and a dredging rod (5), wherein the linear drive mechanism (3) and the guide mechanism (4) are fixed on the support (2), the linear drive mechanism (3) includes a power member (6) and a linear transmission member (7), the power member (6) is connected to the linear transmission member (7), one end of the dredging rod (5) is connected to the linear transmission member (7), and the other end is inserted into the coal bin (1), the linear drive mechanism (3) drives the dredging rod (5) to reciprocate, and the guide mechanism (4) cooperates with the dredging rod (5) to guide the movement of the dredging rod (5).

2. A coal bunker dredging device according to claim 1, characterized in that: The invention also includes a clamping mechanism (8), which is arranged on the support (2). The clamping mechanism (8) includes a clamping claw (8.1) and a clamping claw driving member (8.2). The clamping claw driving member (8.2) is connected to the clamping claw (8.1). The clamping claw driving member (8.2) can drive the clamping claw (8.1) to clamp and hold the dredging rod (5) or release it.

3. A coal bunker dredging device according to claim 1, characterized in that: The guide mechanism (4) comprises a guide cylinder (4.1), a dredging rod (5) passes through the guide cylinder (4.1) and is coupled with the inner wall of the guide cylinder (4.1), and the guide cylinder (4.1) guides the dredging rod (5).

4. The coal bunker dredging device according to claim 1, characterized in that: The guide mechanism (4) comprises a guide frame (4.2) and a slider (4.3); the guide frame (4.2) is arranged on the support (2); the slider (4.3) and the guide frame (4.2) are coupled to realize linear motion; the slider (4.3) is connected to or integrated with the linear transmission member (7) of the linear drive mechanism (3); a connecting member (4.31) is provided on the slider (4.3); the connecting member (4.31) is provided with a rod connecting end (4.311); one end of the dredging rod (5) is connected to the rod connecting end (4.311) of the connecting member (4.31); and under the drive of the linear drive mechanism (3), the slider (4.3) moves linearly along the guide frame (4.2).

5. A coal bunker dredging device according to claim 4, characterized in that: The invention also includes an air cannon (9), wherein the connecting piece (4.31) is provided with a tube connecting end (4.312), the tube connecting piece (4.31) is connected to the nozzle of the air cannon (9), and a connecting hole (12) is provided between the rod connecting end (4.311) and the tube connecting end (4.312).

6. A coal bunker dredging device according to claim 1 or 5, characterized in that: The dredging rod (5) is a hollow structural rod with multiple sections connected end to end.

7. The coal bunker dredging device according to claim 6, characterized in that: The head of the dredging rod (5) inserted into the coal bunker end is provided with a dredging head (10).

8. A coal bunker dredging device according to claim 6 or 7, characterized in that: The dredging rod (5) and / or the dredging head (10) is radially provided with a through hole (12) communicating with the hollow structure (11).

9. The coal bunker dredging device according to claim 8, characterized in that: The through hole (12) is oriented obliquely downward from the inside to the outside, and the angle (α) between the through hole axis and the dredging rod axis is smaller than the accumulation angle of the material in the coal bunker. A shielding boss (13) is provided at the bottom of the through hole (12).

10. A coal bunker dredging device according to claim 1 or 4, characterized in that: The coal bunker dredging device further comprises a rotary drive mechanism (14), which is mounted on a support (2) or a slider (4.3). The rotary drive mechanism (14) is coupled to the dredging rod (5) or the rotary drive mechanism (14) is coupled to the connecting piece (4.31), driving the dredging rod (5) to rotate around an axis, thereby reducing resistance during reciprocating motion of the dredging rod (5) and achieving a better dredging effect.

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