Auxiliary crushing device of scraper

Abstract

The utility model provides an auxiliary crushing device of a coal mine scraper conveyor, which comprises a rotary mechanism, a movable mechanism and a crushing mechanism, the rotary mechanism comprises a fixed pin shaft, a rotary support and a link plate, the rotary support and the link plate are arranged on the fixed pin shaft, and the rotary support is connected with a rotary motor drive; the movable mechanism comprises a fixed arm, a telescopic arm, a swinging arm and a crushing arm which are connected in sequence, a telescopic oil cylinder is connected between the fixed arm and the telescopic arm, a swinging oil cylinder is connected between the telescopic arm and the swinging arm, and a crushing oil cylinder is mounted between the swinging arm and the crushing arm; the crushing mechanism comprises a pneumatic impact hammer, a pneumatic impact hammer and a mounting seat, and the mounting seat is detachably mounted on the outer side wall of the crushing arm. The device can replace manual sledge hammer knocking and crush large coal briquettes, the problem that the large coal briquettes are blocked at an inlet of a reversed loader can be solved, meanwhile, the labor intensity of workers is greatly relieved, the safety coefficient of underground operation is increased, the damage rate of fully-mechanized coal mining equipment is reduced, the equipment maintenance cost is saved, and the coal production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining devices, and specifically, to an auxiliary crushing device for a scraper conveyor. Background Art

[0002] During the operation of the shearer in the fully mechanized coal mining face, with the increase of the coal seam thickness and the mine pressure in the working face, large pieces of coal blocks collapse from the coal wall of the working face. When the scraper conveyor transports the coal to the transfer coal flow point, the jamming phenomenon is serious. The subsequent coal flow continuously accumulates, resulting in the scraper conveyor being stuck or overloaded. Therefore, it is necessary to break large coal blocks. However, due to the unpredictability of the formation of large coal blocks generated in the working face after the shearer mines coal, after passing through the conveyor to the inlet of the transfer machine, its maximum free surface can be at any angle with the horizontal plane, making it difficult to break large coal blocks using existing crushing devices. The current solution is to stop the machine and workers use sledgehammers and pneumatic picks to break the coal, which is difficult, with high labor intensity for workers, long downtime, and there are certain safety hazards.

[0003] Therefore, there is an urgent need for an auxiliary crushing device for a scraper conveyor that can adapt to the working environment of the fully mechanized coal mining face, replace manual sledgehammer knocking, break large coal blocks, and assist the operation of the supporting transportation system after the shearer cuts coal. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide an auxiliary crushing device for a scraper conveyor, which uses a hydraulic manipulator to complete the crushing work, reduces the labor intensity of workers, improves the working environment of employees, increases work efficiency, and provides guarantee for high-yield, high-efficiency, and safe mining.

[0005] The utility model provides an auxiliary crushing device for a scraper conveyor, which includes a slewing mechanism, a movable mechanism, and a crushing mechanism, wherein:

[0006] The slewing mechanism includes a fixed pin shaft. A slewing bearing and a connecting plate are successively arranged from bottom to top at the lower part of the fixed pin shaft. One end of the slewing bearing is connected to a slewing motor;

[0007] The movable mechanism includes a fixed arm. One end of the fixed arm is installed on the connecting plate. A telescopic arm is movably assembled inside the fixed arm. The end of the telescopic arm is hinged to a swing arm. The other end of the swing arm is hinged to the inner side wall of the crushing arm. The side part of the fixed arm is connected to a telescopic oil cylinder. The movable end of the telescopic oil cylinder is connected to the side part of the telescopic arm. A swing oil cylinder is installed on the telescopic arm. The movable end of the swing oil cylinder is connected to the side part of the swing arm. A crushing oil cylinder is installed on the swing arm. The movable end of the crushing oil cylinder is connected to the end of the crushing arm;

[0008] The crushing mechanism includes a pneumatic impact hammer. An installation seat is arranged on the pneumatic impact hammer. The installation seat is detachably installed on the outer side wall of the crushing arm.

[0009] Preferably, a vertical plate is provided on the upper side of the link plate. A rib plate is provided on one side of the vertical plate, and an L-shaped plate is provided on the other side of the vertical plate. A plurality of bolt holes are provided on the L-shaped plate, and the vertical plate and the fixed arm are respectively connected to the L-shaped plate by bolts.

[0010] Preferably, a flange is provided at the lower end of the fixed pin shaft. The slewing bearing is respectively connected to the link plate and the flange by bolts.

[0011] Preferably, a fastening nut is provided in the middle of the fixed pin shaft.

[0012] Preferably, an oil cylinder seat is provided on the lower side of the telescopic arm. A fixed disk is vertically provided on the oil cylinder seat. A movable turntable is connected to the fixed disk through a rotating shaft. The swing oil cylinder is installed on the movable turntable. A swing pull seat is provided on the inner side wall of the swing arm. The movable end of the swing oil cylinder is hinged to the swing pull seat.

[0013] Preferably, a crushing pull seat is provided on the inner side wall of the crushing arm. The swing arm is hinged to the crushing pull seat.

[0014] Preferably, a plurality of mounting holes are provided on the outer side wall of the crushing arm. The mounting seat is connected to the crushing arm by bolts passing through the mounting holes.

[0015] Working principle of the present invention: For the auxiliary crushing device of the scraper conveyor of the present invention, during installation, first insert the fixed pin shaft into the anti-toppling jack connection pin sleeve preset on the coal mine hydraulic support and connect it with a cotter pin. Then move the fastening nut on the fixed pin shaft to the lower end face of the sleeve and tighten it to complete the installation. During use, according to the position and angle of the large coal block, start the telescopic oil cylinder and the swing oil cylinder to adjust the position of the pneumatic impact hammer. The telescopic oil cylinder drives the telescopic arm to telescopically move a certain distance within the fixed arm, and the swing oil cylinder drives the swing arm to swing downward or upward by a certain angle. Then start the crushing oil cylinder, and the crushing oil cylinder drives the crushing arm and the pneumatic impact hammer, so that the positioning sleeve of the pneumatic impact hammer head is aligned with the large coal block. Start the control switch of the pneumatic impact hammer to impact and crush the coal block. It can continuously impact and crush, and the impact frequency is once every 3 seconds.

[0016] Advantages of the present invention: The auxiliary crushing device of the coal mine scraper conveyor of the present invention can replace manual sledgehammer knocking to crush large coal blocks, and assist the operation of the supporting transportation system after the shearer cuts coal, so as to achieve an ideal continuous crushing effect and make up for the deficiencies of the existing technology. Using this device can not only solve the blockage problem of large coal blocks at the entrance of the transfer machine, but also greatly reduce the labor intensity of workers, improve the safety factor of underground operations, reduce the damage rate of fully-mechanized mining equipment, save equipment maintenance costs, and improve coal production efficiency. In addition, the pneumatic impact hammer in this device can impact and crush large coal blocks at the feed inlet of the transfer machine from top to bottom at any angle and any position, with strong versatility. Description of the Drawings

[0017] Figure 1 This is a schematic structural diagram of the down state of the auxiliary crushing device for the scraper conveyor of the present utility model;

[0018] Figure 2 is Figure 1 a schematic structural diagram of the rotary mechanism in

[0019] Figure 3 is Figure 2 a top view of the rotary mechanism in

[0020] Figure 4 is Figure 1 a schematic structural diagram of the movable mechanism and the crushing mechanism in

[0021] Figure 5 is Figure 4 a schematic structural diagram of the up state of the movable mechanism and the crushing mechanism in

[0022] Figure 6 This is an installation drawing of the auxiliary crushing device for the scraper conveyor of the present utility model.

[0023] In the figure: Rotary mechanism 1, fixed pin shaft 101, rotary support 102, connecting plate 103, rotary motor 104, vertical plate 105, rib plate 106, L-shaped plate 107, bolt hole 108, flange plate 109, fastening nut 110;

[0024] Movable mechanism 2, fixed arm 201, telescopic arm 202, swing arm 203, crushing arm 204, telescopic oil cylinder 205, swing oil cylinder 206, crushing oil cylinder 207, oil cylinder seat 208, fixed disk 209, rotating shaft 210, movable turntable 211, swing pull seat 212, crushing pull seat 213, mounting hole 214;

[0025] Crushing mechanism 3, pneumatic impact hammer 301, mounting seat 302;

[0026] Coal mine scraper conveyor 4, scraper conveyor coal baffle 5, coal mine hydraulic support 6. Specific embodiments

[0027] In order to make the technical solution of the present utility model easier to understand, the technical solution of the present utility model will be clearly and completely described by way of specific embodiments in combination with the accompanying drawings.

[0028] Embodiment 1:

[0029] As Figures 1 to 6 shown, the auxiliary crushing device for the scraper conveyor in this embodiment includes a rotary mechanism 1, a movable mechanism 2 and a crushing mechanism 3, wherein:

[0030] The slewing mechanism 1 includes a fixed pin shaft 101. A slewing support 102 and a connecting plate 103 are successively arranged from bottom to top at the lower part of the fixed pin shaft 101. One end of the slewing support 102 is connected to a slewing motor 104;

[0031] The movable mechanism 2 includes a fixed arm 201. One end of the fixed arm 201 is installed on the connecting plate 103. A telescopic arm 202 is movably installed in the fixed arm 201. The end of the telescopic arm 202 is hinged to a swing arm 203. The other end of the swing arm 203 is hinged to the inner side wall of a crushing arm 204. A telescopic oil cylinder 205 is connected to the side of the fixed arm 201. The movable end of the telescopic oil cylinder 205 is connected to the side of the telescopic arm 202. A swing oil cylinder 206 is installed on the telescopic arm 202. The movable end of the swing oil cylinder 206 is connected to the side of the swing arm 203. A crushing oil cylinder 207 is installed on the swing arm 203. The movable end of the crushing oil cylinder 207 is connected to the end of the crushing arm 204;

[0032] The crushing mechanism 3 includes a pneumatic impact hammer 301. A mounting seat 302 is provided on the pneumatic impact hammer 301. The mounting seat 302 is detachably installed on the outer side wall of the crushing arm 204.

[0033] Embodiment 2:

[0034] As Figures 1 to 6 shown, the auxiliary crushing device of the scraper conveyor in this embodiment includes a slewing mechanism 1, a movable mechanism 2 and a crushing mechanism 3, wherein:

[0035] The slewing mechanism 1 includes a fixed pin shaft 101. A slewing support 102 and a connecting plate 103 are successively arranged from bottom to top at the lower part of the fixed pin shaft 101. One end of the slewing support 102 is connected to a slewing motor 104;

[0036] The movable mechanism 2 includes a fixed arm 201. One end of the fixed arm 201 is installed on the connecting plate 103. A telescopic arm 202 is movably installed in the fixed arm 201. The end of the telescopic arm 202 is hinged to a swing arm 203. The other end of the swing arm 203 is hinged to the inner side wall of a crushing arm 204. A telescopic oil cylinder 205 is connected to the side of the fixed arm 201. The movable end of the telescopic oil cylinder 205 is connected to the side of the telescopic arm 202. A swing oil cylinder 206 is installed on the telescopic arm 202. The movable end of the swing oil cylinder 206 is connected to the side of the swing arm 203. A crushing oil cylinder 207 is installed on the swing arm 203. The movable end of the crushing oil cylinder 207 is connected to the end of the crushing arm 204;

[0037] The crushing mechanism 3 includes a pneumatic impact hammer 301. A mounting seat 302 is provided on the pneumatic impact hammer 301. The mounting seat 302 is detachably installed on the outer side wall of the crushing arm 204.

[0038] On the upper side of the link plate 103, there is a vertical plate 105. On one side of the vertical plate 105, there is a rib plate 106. On the other side of the vertical plate 105, there is an L-shaped plate 107. A number of bolt holes 108 are provided on the L-shaped plate 107. The vertical plate 105 and the fixed arm 201 are respectively connected to the L-shaped plate 107 by bolts.

[0039] At the lower end of the fixed pin shaft 101, there is a flange plate 109. The slewing bearing 102 is respectively connected to the link plate 103 and the flange plate 109 by bolts.

[0040] A fastening nut 110 is provided in the middle of the fixed pin shaft 101.

[0041] On the lower side of the telescopic arm 202, there is an oil cylinder seat 208. Vertically provided on the oil cylinder seat 208 is a fixed disk 209. The fixed disk 209 is connected to a movable turntable 211 through a rotating shaft 210. The swing oil cylinder 206 is installed on the movable turntable 211. On the inner side wall of the swing arm 203, there is a swing pull seat 212. The movable end of the swing oil cylinder 206 is hinged to the swing pull seat 212.

[0042] On the inner side wall of the crushing arm 204, there is a crushing pull seat 213. The swing arm 203 is hinged to the crushing pull seat 213.

[0043] On the outer side wall of the crushing arm 204, a number of mounting holes 214 are provided. The mounting seat 302 is connected to the crushing arm 204 by bolts passing through the mounting holes 214.

[0044] It should be noted that the embodiments described herein are only partial embodiments of the present invention, rather than all implementation manners of the present invention. The embodiments are only exemplary, and their functions are only to provide a more intuitive and clear way to understand the content of the present invention, rather than a limitation on the technical solutions of the present invention. Without departing from the concept of the present invention, all other implementation manners that can be thought of by all ordinary technical personnel in the art without creative labor, as well as other simple replacements and various changes to the technical solutions of the present invention, all fall within the protection scope of the present invention.

Claims

1. An auxiliary crushing device for a scraper conveyor, characterized in that, It includes a slewing mechanism (1), a movable mechanism (2) and a crushing mechanism (3), where: The slewing mechanism (1) includes a fixed pin shaft (101). A slewing support (102) and a connecting plate (103) are successively arranged from bottom to top at the lower part of the fixed pin shaft (101). One end of the slewing support (102) is connected to a slewing motor (104); The movable mechanism (2) includes a fixed arm (201). One end of the fixed arm (201) is installed on the connecting plate (103). A telescopic arm (202) is movably installed in the fixed arm (201). The end of the telescopic arm (202) is hinged to a swing arm (203). The other end of the swing arm (203) is hinged to the inner side wall of a crushing arm (204). The side of the fixed arm (201) is connected to a telescopic oil cylinder (205). The movable end of the telescopic oil cylinder (205) is connected to the side of the telescopic arm (202). A swing oil cylinder (206) is installed on the telescopic arm (202). The movable end of the swing oil cylinder (206) is connected to the side of the swing arm (203). A crushing oil cylinder (207) is installed on the swing arm (203). The movable end of the crushing oil cylinder (207) is connected to the end of the crushing arm (204); The crushing mechanism (3) includes a pneumatic impact hammer (301). A mounting seat (302) is provided on the pneumatic impact hammer (301). The mounting seat (302) is detachably installed on the outer side wall of the crushing arm (204).

2. The scraper conveyor auxiliary crushing device according to claim 1, wherein, A vertical plate (105) is provided on the upper side of the connecting plate (103). A rib plate (106) is provided on one side of the vertical plate (105). An L-shaped plate (107) is provided on the other side of the vertical plate (105). A plurality of bolt holes (108) are provided on the L-shaped plate (107). The vertical plate (105) and the fixed arm (201) are respectively connected to the L-shaped plate (107) by bolts.

3. The scraper conveyor auxiliary crushing device according to claim 1, characterized in that, A flange plate (109) is provided at the lower end of the fixed pin shaft (101). The slewing support (102) is respectively connected to the connecting plate (103) and the flange plate (109) by bolts.

4. The scraper conveyor auxiliary crushing device according to claim 1, wherein, A fastening nut (110) is provided in the middle of the fixed pin shaft (101).

5. The auxiliary crushing device for a scraper conveyor according to claim 1, wherein An oil cylinder seat (208) is provided on the lower side of the telescopic arm (202). A fixed disk (209) is vertically provided on the oil cylinder seat (208). A movable turntable (211) is connected to the fixed disk (209) through a rotating shaft (210). The swing oil cylinder (206) is installed on the movable turntable (211). A swing pull seat (212) is provided on the inner side wall of the swing arm (203). The movable end of the swing oil cylinder (206) is hinged to the swing pull seat (212).

6. The auxiliary crushing device for a scraper conveyor according to claim 1, characterized in that, A crushing pull seat (213) is provided on the inner side wall of the crushing arm (204). The swing arm (203) is hinged to the crushing pull seat (213).

7. The scraper conveyor auxiliary crushing device according to claim 1, wherein A plurality of mounting holes (214) are provided on the outer side wall of the crushing arm (204). Bolts connect the mounting seat (302) to the crushing arm (204) through the mounting holes (214).

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