A vertical lifting crusher and chute scraper transfer machine

Abstract

The present invention relates to the field of coal mining technology, specifically a vertical lifting crusher and chute scraper transfer machine; the structure includes a crushing mechanism, a power unit, a lifting main frame, a wheel group, a crushing chute, a hydraulic control system, a fixed baffle, a protective cover, and a telescopic baffle. The present invention adopts a hammer head to crush large pieces of biased coal and large pieces of gangue, with strong impact crushing ability and concentrated energy. It can transfer more energy in an instant and break through the blockage of large pieces of coal or gangue; at the same time, the hammer body of the crushing mechanism adopts a narrow hammer body, and can be lifted vertically by an oil cylinder, which has little impact on the space through which the coal flow passes during the crushing of large pieces of coal or gangue; thereby, the working face conveyor and transfer machine do not stop or stop less to improve the coal mining efficiency. In summary, this device has the advantages of simple structure, easy operation, fast processing of blockage of large pieces of coal or gangue, saving manpower and time, and improving coal mining efficiency.

Description

Technical Field

[0001] The invention relates to the field of crushing of a chute transfer machine on a fully mechanized working face in an underground coal mine, in particular to a vertical lifting crusher and a chute scraper transfer machine. Background Art

[0002] In the fully mechanized mining face of underground coal mines, with the upgrading of coal mining process and technology, there are more and more mining faces of extra-thick coal seams. In the mining process, new problems also arise. In the mining process of large mining height working faces, large pieces of slanted coal and large pieces of gangue are produced, which easily cause frequent blockages at the entrance of the equipped transfer machine. After the blockage, the working face conveyor needs to be started and stopped frequently to impact the large pieces of slanted coal and large pieces of gangue through the coal flow. However, after the blockage is broken, the chute crusher will be instantly overloaded; or a pneumatic pick is used to crush large pieces of coal manually, which is time-consuming and labor-intensive; or a pick crushing device is installed at the entrance. Since the pick crushing device uses cutting and crushing, the crushing body is wide and the crushing speed is slow. During the coal crushing process, the coal flow passes through a small space, which easily causes blockage, and the use effect is not ideal, affecting the underground coal mining efficiency. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a vertical lifting crusher and a chute scraper transfer machine, including a crushing mechanism, a power unit, a lifting main frame, a wheel group, a crushing bottom chute, a hydraulic control system, a fixed baffle, a protective cover, a telescopic baffle, etc.

[0004] The technical solution adopted by the present invention is: a vertical lifting crusher and chute scraper transfer machine, including a crushing mechanism 1, a power unit 2, a lifting main frame 3, a wheel group 4, a crushing bottom trough 5, a hydraulic control system 6, a fixed baffle 7, a protective cover 8, and a telescopic baffle 9; the crushing mechanism 1 is installed on the lifting main frame 3 with a slot that cooperates with the crushing mechanism 1 through a pressure block and bolts; the power unit 2 is connected to the crushing mechanism 1 and is connected to the lifting main frame 3 through bolts and keys; the protective cover 8 is located on the outside of the counterweight wheel 17 and is fastened to the lifting main frame 3 by bolts; the lifting main frame 3 is located on the right side just above the crushing bottom trough 5, and the left end face is inserted into the square hole c of the limit plate 55 through the cylindrical pin A31 and the bolt, and the wheel group 4 and the lifting main frame 3 are tightened on the crushing bottom trough 5 by bolts, and the wheel group 4 moves with the lifting main frame 3; the right end top extension machine The structure 36 is placed in the T-shaped slot 35, and the top plate 34 is welded to the upper and lower sides of the baffle of the lifting main frame 3. The bolt head is on the top plate 34, and the jacking mechanism 36 is moved horizontally by rotating the nut; the square boss 37 is inserted into the groove f of the fixed baffle 7; the connecting ears A33 are symmetrically welded on both sides of the lifting main frame 3; the vertical cylinder 61 is arranged on both sides of the lifting main frame 3, and the rod cavity of the vertical cylinder 61 is connected to the connecting ear A33 by a connecting pin, and the rodless cavity of the vertical cylinder 61 is connected to the connecting ear B51 by a connecting pin; the lifting main frame 3 is pushed to move vertically by the extension and contraction of the vertical cylinder 61; the hydraulic control system 6 is installed on the baffle of the crushing bottom trough 5 by bolts, and the liquid outlet and return liquid port are respectively connected to the rodless cavity and rod cavity of the vertical cylinder 61 and the horizontal oil cylinder 62 by hydraulic pipelines; the fixed baffle 7 is fastened to the crushing bottom trough 5 by a cylindrical pin B71 and bolts.

[0005] Furthermore, the crushing mechanism 1 consists of a hammer head 11, a hammer body 12, a shaft 13, a bearing 14, a pick roller 15, a wedge key 16, and a counterweight wheel 17; the hammer head 11 is evenly installed on the hammer body 12 by bolts at 120°, the hammer body 12 is installed in the middle of the shaft 13 by the wedge key 16, the pick roller 15 is symmetrically installed on the shaft 13 by flat keys and bolts, and is located on both sides of the hammer body 12, and the counterweight wheel 17 is installed on one end of the shaft 13 by a tapered sleeve, a key, a pressure plate and a bolt; the arrangement of the hammer head 11 includes but is not limited to 90°, 120°, and 180° arrangements.

[0006] Furthermore, the power unit 2 includes but is not limited to belt drive and reducer drive; the power unit 2 is installed on the baffle side, that is, the non-coal wall side.

[0007] Furthermore, the telescopic baffle 9 is located on the unloading side of the crushing bottom trough 5, and a connecting ear D91 is welded at the right end, which is placed in the slot formed by the plate 52 and the L plate 53. The rod cavity of the horizontal cylinder 62 is connected to the connecting ear D91 through a connecting pin, and the rodless cavity of the horizontal cylinder 62 is connected to the connecting ear C54 through a connecting pin; the telescopic baffle 9 is pushed to move horizontally by the extension and contraction of the horizontal cylinder 62.

[0008] In order to achieve the above-mentioned purpose, the present invention also provides a chute scraper transfer machine, which is equipped with the above-mentioned vertical lifting crusher.

[0009] The vertical lifting crusher of the present invention adopts a hammer head to crush large pieces of biased coal and large pieces of gangue. It has a strong impact crushing ability and concentrated energy. It can transmit more energy in an instant to break through the blockage of large pieces of coal or gangue. At the same time, the hammer body of the crushing mechanism adopts a narrow hammer body, which has little impact on the coal flow through the space in the process of crushing large pieces of coal or gangue. In addition, this crusher can be lifted vertically by an oil cylinder. When there are large pieces of coal, the lifting main frame is lowered to crush them. After crushing, it can be lifted vertically to reduce the impact on the coal flow through the transfer machine, thereby improving the coal mining efficiency by allowing the working face conveyor and transfer machine to stop or stop less. In summary, this device has the advantages of simple structure, easy operation, fast processing of large pieces of coal or gangue blockage, saving manpower and time, and improving coal mining efficiency.

[0010] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the baffle side structure of the vertical lifting crusher of the present invention;

[0012] Figure 2 This is a schematic diagram of the structure of the discharging side of the vertical lifting crusher of the present invention;

[0013] Figure 3 for Figure 1 Right view;

[0014] Figure 4 This is the main side view of the lifting main frame baffle;

[0015] Figure 5 This is a schematic diagram of the bolt connection between the wheel group, crushing bottom trough, and lifting main frame;

[0016] Figure 6 It is a top view of the extension mechanism;

[0017] Figure 7 It is a top view of the fixed baffle;

[0018] Figure 8 It is a schematic diagram of the left side view of the jacking and extending mechanism;

[0019] Figure 9 This is the main view of the crushing bottom chute discharge side;

[0020] Figure 10 This is the right view of the crushing bottom trough;

[0021] Figure 11 This is a cross-sectional view of the hammer body of the crushing mechanism;

[0022] Figure 12 This is a schematic diagram of the hammer assembly of the crushing mechanism;

[0023] In the figure: 1 crushing mechanism, 11 hammer head, 12 hammer body, 13 shaft, 14 bearing, 15 pick drum, 16 key, 17 counterweight wheel, 2 power unit, 3 lifting main frame, 31 cylindrical pin A, 32 wheel hub, 33 connecting ear A, 34 top plate, T-shaped slot 35, 36 extension mechanism, 37 square boss, 4 wheel group, 5 crushing bottom groove, 51 connecting ear B, 52 plate, 53 L plate, 54 connecting ear C, 55 limit plate, 6 hydraulic control system, 61 vertical cylinder, 62 horizontal cylinder, 7 fixed baffle, 71 cylindrical pin B, 72 baffle, 8 protective cover, 9 telescopic baffle, 91 connecting ear D DETAILED DESCRIPTION

[0024] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings:

[0025] like Figures 1 to 12As shown in the figure, a vertical lifting crusher and a crossheading scraper conveyor of the present invention have a structure including a crushing mechanism 1, a power unit 2, a lifting main frame 3, a wheel set 4, a crushing bottom trough 5, a hydraulic control system 6, a fixed baffle 7, a protective cover 8, and a telescopic baffle 9; the crushing mechanism 1 is installed on the lifting main frame 3 through a pressing block and bolts on a card slot that matches the crushing mechanism 1; the power unit 2 is connected to the crushing mechanism 1 and is connected to the lifting main frame 3 through bolts and keys; the protective cover 8 is located outside the counterweight wheel 17 and is fastened to the lifting main frame 3 through bolts; the lifting main frame 3 is located directly above the right side of the crushing bottom trough 5, and its left end face is inserted into the square hole c of the limiting plate 55 through a cylindrical pin A31 and bolts, and the wheel set 4 and the lifting main frame 3 are clamped on the crushing bottom trough 5 through bolts, and the wheel set 4 moves together with the lifting main 3; the right end jacking mechanism 36 is placed in the T-shaped card slot 35, the top plate 34 is welded at the upper and lower parts of the baffle side of the lifting main frame 3, the bolt head abuts against the top plate 34, and the jacking mechanism 36 is horizontally moved by rotating the nut; the square boss 37 is inserted into the groove f of the fixed baffle 7; connecting ears A33 are symmetrically welded on both sides of the lifting main frame 3; the vertical cylinders 61 are arranged on both sides of the lifting main frame 3, the rod chamber of the vertical cylinder 61 is connected to the connecting ear A33 through a connecting pin, and the rodless chamber of the vertical cylinder 61 is connected to the connecting ear B51 through a connecting pin; the vertical movement of the lifting main frame 3 is pushed by the extension and contraction of the vertical cylinder 61; the hydraulic control system 6 is installed on the baffle of the crushing bottom trough 5 through bolts, and the liquid outlet and the liquid return port are respectively connected to the rodless chamber and the rod chamber of the vertical cylinder 61 and the horizontal oil cylinder 62 through hydraulic pipelines; the fixed baffle 7 is fastened to the crushing bottom trough 5 through a cylindrical pin B71 and bolts. The crushing mechanism 1 rotates the crushing mechanism 1 through the torque provided by the power unit 2; the hammer heads 11 and the pick drum 15 rotate at high speed under the drive of the crushing mechanism 1 to crush large pieces of coal or large pieces of gangue. After the crushing is completed, the lifting main frame 3 can be lifted by operating the vertical cylinder 61 to increase the coal flow passage space; during the coal crushing or lifting process of the vertical lifting crusher, strong vibrations are likely to occur. The left end face of the lifting main frame 3 clamps the lifting main frame 3 on the limiting plate 45 of the crushing bottom trough 4 through bolts 35 and the wheel set 4. The jacking mechanism 36 makes the bolt head tighten against the top plate 34 by rotating the nut, and the hub of the other end jacking mechanism 36 tightens against the baffle 72 of the fixed baffle 7. In this way, the lifting main frame 3 can be prevented from moving along the coal flow direction. The double sides of the hub 32 and the limiting plate 55 are used on both sides, and the left side surface of the baffle 72 is also abutted, which can reduce the resistance of the lifting main frame 3 during the lifting and lowering process; at the same time, the cylindrical pin A31 at the left end of the lifting main frame 3 is inserted into the square hole c of the limiting plate 55, and the bolt also passes through the square hole, and it satisfies that the bolt diameter φd < φD (cylindrical pin A31) < L1 (width of the square hole) < L2 (width of the hub). The square boss 37 is inserted into the groove of the baffle 72 to limit the left and right swaying of the lifting main frame 3 during operation together. By the above method, the stability of the lifting main frame 3 during operation is increased, and the vertical cylinder 61 only receives the force in the vertical direction.

[0026] In this embodiment, the crushing mechanism 1 consists of a hammer head 11, a hammer body 12, a shaft 13, a bearing 14, a pick roller 15, a key 16, and a counterweight wheel 17; the hammer head 11 is evenly installed on the hammer body 12 by bolts at 120°, the hammer body 12 is installed in the middle of the shaft 13 by the key 16, the pick roller 15 is symmetrically installed on the shaft 13 by flat keys and bolts, and is located on both sides of the hammer body 12, and the counterweight wheel 17 is installed on one end of the shaft 13 by a tapered sleeve, a key, a pressure plate and a bolt; the hammer head arrangement includes but is not limited to 90°, 120°, and 180° arrangements. The hammer head 11 structure is adopted because the hammer head 11 has a strong impact crushing ability and concentrated energy. It can transmit more energy in an instant, break through the blockage of large pieces of coal or gangue, so that the working face conveyor and transfer machine do not stop or stop less, thereby improving the coal mining efficiency; the crushing mechanism 1 adopts a narrow hammer body 12 structure, which can achieve little impact on the coal flow through space during the process of crushing large pieces of coal and large pieces of gangue; at the same time, compared with the wide hammer body, the narrow hammer body 12 structure has a small contact area with the coal blocks during the coal crushing process, so the pressure is large and the coal blocks are easily crushed under the same power, speed, crushing mechanism quality, structure, etc.; the counterweight wheel 17 can increase the weight of the crushing mechanism 1, thereby increasing the kinetic energy, and then increasing the crushing capacity of the vertical crusher; the pick roller 15 is small in size, which can increase the coal flow through space, and at the same time, during the descent of the vertical crusher, it can prevent large pieces of coal and gangue from hindering the descent of the crusher.

[0027] In this embodiment, the power unit 2 includes, but is not limited to, a belt drive and a speed reducer drive. The power unit 2 is mounted on the baffle side, i.e., the side not on the coal wall. The power unit 2 provides power for the vertical crusher and rises and falls along with the main frame 3 under the action of the vertical cylinder 61.

[0028] In this embodiment, the telescopic baffle 9 is located on the discharge side of the crushing bottom chute 5. A coupling lug D91 is welded to its right end and positioned within the slot formed by the plate 52 and L-plate 53. The rod cavity of the horizontal cylinder 62 is connected to the coupling lug D91 via a coupling pin, while the rodless cavity of the horizontal cylinder 62 is connected to the coupling lug C54 via a coupling pin. The telescopic baffle 9 is moved horizontally by the extension and retraction of the horizontal cylinder 62. When a long strip of coal or gangue lies across the entrance of the double-height trough of the transfer machine, with one end positioned above the upper wing plate and the other end positioned across the discharge baffle, obstructing the flow of coal and preventing the hammers 11 of the crushing mechanism 1 from contacting it, the horizontal cylinder 62 can be manipulated to extend the telescopic baffle 9, subjecting the long strip of coal or gangue to a force opposing the transfer machine's scraper chain. The action of the transfer machine's scraper chain and the telescopic baffle 9 causes the long strip of coal or gangue to rotate 90° and enter the transfer machine.

[0029] To achieve the above object, the present invention further provides a chute scraper transfer machine equipped with a vertical lifting crusher as described in the above embodiment. Since the chute scraper transfer machine includes the above vertical lifting crusher, it also has the above technical effects, which will not be described in detail here.

[0030] The above detailed description of the technical solutions of the present invention with reference to the preferred embodiments is illustrative and not restrictive in form. After reading the present specification, those skilled in the art may modify the technical solutions described in the embodiments or replace some of the technical features therein with equivalents. Such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertical lifting crusher, characterized by: The invention comprises a crushing mechanism (1), a power unit (2), a lifting main frame (3), a wheel group (4), a crushing bottom trough (5), a hydraulic control system (6), a fixed baffle (7), a protective cover (8), and a telescopic baffle (9); the crushing mechanism (1) is composed of a hammer head (11), a hammer body (12), a shaft (13), a bearing (14), a pick roller (15), a key (16), and a counterweight wheel (17); the crushing mechanism (1) is mounted on a slot on the lifting main frame (3) that is matched with the crushing mechanism (1) through a pressing block and a bolt; the power unit (2) is connected to the crushing mechanism (1) and is connected to the lifting main frame (3) through bolts and a key; the protective cover (8) is located outside the counterweight wheel (17) and is fastened to the lifting main frame (3) through bolts; the telescopic baffle (9) is located on the discharge side of the crushing bottom trough (5); the lifting main frame (3) is located on the right side just above the crushing bottom trough (5), The left end face is inserted into the square hole c of the limit plate (55) through the cylindrical pin A (31) and the bolt, and the wheel group (4) and the lifting main frame (3) are tightened on the crushing bottom trough (5) through the bolt, and the wheel group (4) moves together with the lifting main frame (3); the right end extension mechanism (36) is placed in the T-shaped slot (35), the top plate (34) is welded to the upper and lower sides of the baffle of the lifting main frame (3), the bolt head is on the top plate (34), and the top extension mechanism (36) is moved horizontally by rotating the nut; the square boss (37) is inserted into the fixed baffle (7) in the groove f; the lifting main frame (3) is symmetrically welded with connecting ears A (33); the vertical cylinder (61) is arranged on both sides of the lifting main frame (3), the rod cavity of the vertical cylinder (61) is connected to the connecting ear A (33) through a connecting pin, and the rodless cavity of the vertical cylinder (61) is connected to the connecting ear B (51) through a connecting pin; the lifting main frame (3) is pushed to move vertically by the extension and contraction of the vertical cylinder (61); the hydraulic control system (6) is installed on the baffle of the crushing bottom trough (5) through bolts, and the liquid outlet and the liquid return port are respectively connected to the rodless cavity and the rod cavity of the vertical cylinder (61) and the horizontal oil cylinder (62) through hydraulic pipelines; the fixed baffle (7) is fastened to the crushing bottom trough (5) through the cylindrical pin B (71) and bolts.

2. The vertical lifting crusher according to claim 1, characterized in that: The hammer head (11) is evenly mounted on the hammer body (12) by bolts at 120 degrees. The hammer body (12) is mounted in the middle of the shaft (13) by a key (16). The pick roller (15) is symmetrically mounted on the shaft (13) by a flat key and bolts. On both sides, the counterweight wheel (17) is installed on one end of the shaft (13) through a tapered sleeve, a key, a pressure plate and a bolt; the arrangement of the hammer head (11) includes any arrangement of 90°, 120° and 180°.

3. The vertical lifting crusher according to claim 1, characterized in that: The power unit (2) includes any form of belt drive or reducer drive; the power unit (2) is installed on the baffle side of the lifting main frame (3), that is, the non-coal wall side.

4. The vertical lifting crusher according to claim 1, characterized in that: The right end of the telescopic baffle (9) is welded with a connecting ear D (91) which is placed in the slot formed by the plate (52) and the L plate (53). The horizontal oil cylinder (62) has a rod cavity and a connecting ear. The connecting ear D (91) is connected by a connecting pin, and the rodless cavity of the horizontal oil cylinder (62) is connected to the connecting ear C (54) by a connecting pin; the telescopic baffle (9) is pushed to move horizontally by extending and contracting the horizontal oil cylinder (62).

5. A chute scraper transfer machine, characterized in that: The chute scraper transfer machine is provided with a vertical lifting crusher as described in any one of claims 1 to 4.

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