Vertical groove coal grabbing machine
By designing a vertical trough coal grab machine with a large pitch angle and a multi-function grab, the problem of low coal mining efficiency in open-pit coal mines is solved, and safe and efficient coal collection is achieved.
Patent Information
- Application Number
- CN202422207672.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing technology is difficult to efficiently mine coal in open-pit coal mines. Traditional methods require explosives to loosen coal seams, and large-scale mechanical equipment cannot operate safely, resulting in low mining efficiency.
A vertical trough coal grab machine is designed, including a chassis, rotary table, fuselage, amplitude change mechanism, a winch mechanism, a boom frame and a grab bucket. The boom frame is made of steel pipes, with a pitch angle ranging from 44° to 77°. The grab bucket has a large cutting angle and adjustable bucket teeth, which can grab coal at different angles and positions.
It realizes the safe and efficient mining of coal in open-pit coal mines. The large pitch angle of the boom and the multi-functional design of the grab ensure construction safety and coal mining efficiency.
Smart Images
Figure CN223048801U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mining machinery, in particular to a vertical trough coal grabber. Background Art
[0002] At present, there is no suitable mechanical equipment for efficient coal mining in open-pit coal mines. When mining coal, it is usually necessary to use explosives to completely loosen the coal seam, and then carry out mining through manual or light machinery. However, large mechanical equipment cannot operate safely in the completely loosened coal seam, so the coal mining efficiency is relatively low. Content of the Utility Model
[0003] The purpose of the utility model is to provide a vertical trough coal grabber that can safely and efficiently mine open-pit coal seams.
[0004] The utility model provides a vertical trough coal grabber, which includes a chassis, a turntable, a fuselage, a luffing mechanism, a hoisting mechanism, a boom and a grab bucket. The fuselage is rotatably connected to the chassis through the turntable. The luffing mechanism is connected between the boom and the fuselage to adjust the working amplitude of the boom. The hoisting mechanism is connected to the grab bucket to drive the grab bucket to lift and lower. The boom includes a bottom frame, vertical rods, cross rods and a top frame. The bottom frame is rotatably connected to the fuselage. One ends of a plurality of the vertical rods are fixedly connected to the bottom frame, and the other ends are fixedly connected to the top frame. A plurality of the cross rods are arranged at intervals, and two ends of each cross rod are respectively connected to two of the vertical rods. Both the vertical rods and the cross rods are steel pipes. The pitching angle range of the boom driven by the luffing mechanism is 44° to 77°.
[0005] In one embodiment, each vertical rod is composed of a plurality of sub-rods connected in sequence, and the cross rod is arranged near the connection of the sub-rods of the vertical rod.
[0006] In one embodiment, the grab bucket includes a first bucket body and a second bucket body. The first bucket body and the second bucket body are relatively rotatably arranged so that the first bucket body and the second bucket body can be opened or closed. Tooth segments are provided at the edges of the first bucket body and the second bucket body. The cutting angle α of the tooth segments cutting into the coal seam is 50° to 70°.
[0007] In one embodiment, the grab bucket further includes a grab bucket frame, an oil cylinder and a connecting rod. Two ends of the oil cylinder are respectively hinged to the first bucket body and the grab bucket frame. Two ends of the connecting rod are respectively hinged to the second bucket body and the grab bucket frame. The oil cylinder can be telescoped to drive the first bucket body and the second bucket body to rotate relatively to open or close.
[0008] In one embodiment, the luffing mechanism is a hoisting luffing.
[0009] In one embodiment, the hoisting mechanism includes a front hoist, a rear hoist, a first steel wire rope, and a second steel wire rope. One end of the first steel wire rope is wound around the front hoist, and the other end is connected to the grab bucket. One end of the second steel wire rope is wound around the rear hoist, and the other end is connected to the grab bucket.
[0010] In one embodiment, the hoisting mechanism further includes a first pulley, a second pulley, a third pulley, and a fourth pulley provided on the boom. After the first steel wire rope is connected to the grab bucket, it sequentially bypasses the first pulley and the second pulley and then is wound around the front hoist. After the second steel wire rope is connected to the grab bucket, it sequentially bypasses the third pulley and the fourth pulley and then is wound around the rear hoist.
[0011] In one embodiment, the portion of the first steel wire rope between the first pulley and the grab bucket and the portion of the second steel wire rope between the third pulley and the grab bucket are staggered in the front-rear direction of the fuselage.
[0012] In one embodiment, the first pulley and the second pulley are respectively located on the front side and the rear side of the boom, and the third pulley and the fourth pulley are respectively located on the front side and the rear side of the boom.
[0013] In one embodiment, the vertical slot coal grabber further includes a power system, an electric control system, and a hydraulic system. The power system and the electric control system are respectively installed on both sides of the fuselage. The hydraulic system is used to drive the fuselage to rotate relative to the chassis and is used to drive the chassis to travel and steer.
[0014] In this vertical slot coal grabber, the boom is made of steel pipes, which has good rigidity, light weight, small center of gravity offset during amplitude variation, and a relatively large range of boom pitching angles. It can keep the grab bucket at a relatively far distance from the fuselage at the slot-forming position, ensuring construction safety. Moreover, the vertical slot coal grabber has a large grab bucket and can efficiently mine coal. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0016] Figure 1 It is a schematic structural diagram of a vertical slot coal grabber according to an embodiment of the present invention.
[0017] Figure 2 For Figure 1 the top view of the shown vertical slot coal grabber.
[0018] Figure 3 For Figure 1 the structural schematic diagram of the grab bucket of the vertical trough coal grabber shown Specific embodiments
[0019] The following will describe in detail specific embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the description of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention
[0020] In the description of the present invention, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances
[0021] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of description and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention
[0022] Terms such as "first", "second", "third", etc. are only used to distinguish elements with similar attributes, rather than indicating or implying relative importance or a specific order
[0023] The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the listed elements, it may also include other elements not specifically listed
[0024] Please refer to Figure 1 and Figure 2, a vertical slot coal grabber according to an embodiment of the present utility model includes a chassis 11, a turntable 13, a fuselage 15, a luffing mechanism 17, a hoisting mechanism 19, a boom 21 and a grab bucket 23. The fuselage 15 is rotatably connected to the chassis 11 through the turntable 13. The luffing mechanism 17 is connected between the boom 21 and the fuselage 15 to adjust the working range of the boom 21. The hoisting mechanism 19 is connected to the grab bucket 23 to drive the grab bucket 23 to lift and lower. The boom 21 includes a bottom frame 210, vertical rods 211, cross rods 213 and a top frame 215. The bottom frame 210 is rotatably connected to the fuselage 15. One ends of a plurality of vertical rods 211 are fixedly connected to the bottom frame 210, and the other ends are fixedly connected to the top frame 215. A plurality of cross rods 213 are arranged at intervals, and both ends of the cross rod 213 are respectively connected to two vertical rods 211. Both the vertical rods 211 and the cross rods 213 are steel pipes. The pitching angle range of the boom 21 driven by the luffing mechanism 17 is 44° to 77°. The pitching angle of the boom 21 refers to the angle between the boom 21 and the horizontal plane.
[0025] In the vertical slot coal grabber of this embodiment, the boom is made of steel pipes, which has good rigidity, light weight, small center of gravity offset during luffing, and a large pitching angle range of the boom, enabling the grab bucket to be far from the fuselage at the slot-forming position and ensuring construction safety; and the vertical slot coal grabber has a large grab bucket and can efficiently mine coal.
[0026] In this embodiment, the chassis 11 is a crawler chassis to meet the requirements of walking speed and climbing ability.
[0027] In this embodiment, the turntable 13 includes a first part connected to the chassis 11 and a second part connected to the fuselage 15. The second part is rotatably connected to the first part. The first part and the second part can specifically be a slewing bearing structure.
[0028] In this embodiment, the fuselage 15 can rotate around the vertical direction driven by the turntable 13 so that the grab bucket 23 can reach different positions to grab coal. A counterweight 152 is provided on one side of the fuselage 15 away from the connection between the boom 21 and the fuselage 15.
[0029] In this embodiment, the luffing mechanism 17 is a hoisting luffing. Compared with the cylinder luffing, the hoisting luffing can enable the boom 21 to have a larger luffing angle.
[0030] In this embodiment, the hoisting mechanism 19 includes a front hoist, a rear hoist, a first steel wire rope 193, and a second steel wire rope 194. One end of the first steel wire rope 193 is wound around the front hoist, and the other end is connected to the grab bucket 23. One end of the second steel wire rope 194 is wound around the rear hoist, and the other end is connected to the grab bucket 23. Specifically, the hoisting mechanism 19 further includes a first pulley 195, a second pulley 196, a third pulley 197, and a fourth pulley 198 provided on the boom 21. After the first steel wire rope 193 is connected to the grab bucket 23, it sequentially bypasses the first pulley 195 and the second pulley 196 and then is wound around the front hoist. After the second steel wire rope 194 is connected to the grab bucket 23, it sequentially bypasses the third pulley 197 and the fourth pulley 198 and then is wound around the rear hoist.
[0031] Specifically, the portion of the first steel wire rope 193 between the first pulley 195 and the grab bucket 23 and the portion of the second steel wire rope 194 between the third pulley 197 and the grab bucket 23 are staggered in the front-back direction of the fuselage 15, so that the grab bucket 23 can be deflected by a certain angle in the vertical direction to grab coal from different directions. For the fuselage 15, the end close to the grab bucket 23 is the front, and the side where the counterweight 152 is provided is the rear.
[0032] Specifically, the first pulley 195 and the second pulley 196 are respectively located on the front side and the rear side of the boom 21, and the third pulley 197 and the fourth pulley 198 are respectively located on the front side and the rear side of the boom 21.
[0033] In this embodiment, each vertical rod 211 is composed of multiple sub-rods connected in sequence. Specifically, the included angle between some cross bars 213 and the vertical rod 211 is 80° - 100°, and the included angle between some cross bars 213 and the vertical rod 211 is 40° - 70°. That is to say, some cross bars 213 are perpendicular or nearly perpendicular to the vertical rod 211, and some cross bars 213 are set to be significantly inclined at a larger angle relative to the vertical rod 211. Specifically, the cross bar 213 is arranged at the connection of the sub-rods close to the vertical rod 211. In this way, the number of cross bars 213 is small, which can better reduce the weight of the boom 21, so that the boom 21 can be swung more easily.
[0034] In this embodiment, please refer to Figure 3 , the grab bucket 23 includes a first bucket body 233 and a second bucket body 234. The first bucket body 233 and the second bucket body 234 are rotatably arranged relative to each other so that the first bucket body 233 and the second bucket body 234 can be opened or closed. The edges of the first bucket body 233 and the second bucket body 234 are provided with bucket teeth 235. The cutting angle α of the bucket teeth 235 cutting into the coal seam is 50° - 70° to improve the coal dropping efficiency. Specifically, the cutting angle α of the bucket teeth 235 is preferably 60°. The cutting angle α refers to the angle between the inner side of the bucket teeth 235 and the ground when the grab bucket 23 is opened to prepare for grabbing coal.
[0035] Specifically, the grab bucket 23 further includes a grab bucket frame 237, an oil cylinder 238, and a connecting rod 239. The two ends of the oil cylinder 238 are respectively hinged to the first bucket body 233 and the grab bucket frame 237, and the two ends of the connecting rod 239 are respectively hinged to the second bucket body 234 and the grab bucket frame 237. The telescopic movement of the oil cylinder 238 can drive the first bucket body 233 and the second bucket body 234 to rotate relative to each other to open or close. Specifically, the first steel wire rope 193 and the second steel wire rope 194 are connected to the grab bucket frame 237 to lift and lower the grab bucket 23.
[0036] In this embodiment, the vertical groove coal grabber further includes a power system 27, an electric control system 29, and a hydraulic system 31. The power system 27 and the electric control system 29 are respectively installed on both sides of the fuselage 15. The hydraulic system 31 is used to drive the fuselage 15 to rotate relative to the chassis 11, and is used to drive the chassis 11 to move and steer.
[0037] The coal mining method using the vertical groove coal grabber of this embodiment includes the following steps:
[0038] S11, Loosen the open-pit coal seam by blasting.
[0039] S13, Use the grab bucket 23 of the above-mentioned vertical groove coal grabber to grab the coal seam. Specifically, in step S13, the cutting angle α of the grab bucket 23 into the coal seam is 50° to 70°. Specifically, the cutting angle α of the grab bucket 23 is preferably 60°.
[0040] As mentioned above, only the specific implementation manners of the present invention are described, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims
1. A vertical chute coal grabber, characterized in that: The invention comprises a chassis (11), a turntable (13), a machine body (15), a luffing mechanism (17), a hoisting mechanism (19), a boom (21) and a grab bucket (23); the machine body (15) is rotatably connected to the chassis (11) via the turntable (13); the luffing mechanism (17) is connected between the boom (21) and the machine body (15) to adjust the working range of the boom (21); the hoisting mechanism (19) is connected to the grab bucket (23) to drive the grab bucket (23) to rise and fall; the boom (21) comprises a base frame (210), a vertical rod (211), and a vertical rod (212). ), a cross bar (213) and a top frame (215), the bottom frame (210) is rotatably connected to the fuselage (15), one end of a plurality of vertical bars (211) is fixedly connected to the bottom frame (210), and the other end is fixedly connected to the top frame (215), the plurality of cross bars (213) are arranged at intervals, and the two ends of the cross bar (213) are respectively connected to two vertical bars (211), the vertical bars (211) and the cross bar (213) are both steel pipes, and the pitch angle range of the boom (21) driven by the amplitude varying mechanism (17) is 44° to 77°.
2. The vertical chute coal grabber according to claim 1, characterized in that: Each of the vertical rods (211) is composed of a plurality of sub-rods connected in sequence, and the cross rod (213) is arranged near the connection between the sub-rods of the vertical rods (211).
3. The vertical chute coal grabber according to claim 1, characterized in that: The grab bucket (23) comprises a first bucket body (233) and a second bucket body (234); the first bucket body (233) and the second bucket body (234) are relatively rotatable so that the first bucket body (233) and the second bucket body (234) can be opened or closed; the edges of the first bucket body (233) and the second bucket body (234) are provided with bucket teeth (235); the cutting angle α of the bucket teeth (235) when cutting into the coal seam is 50° to 70°.
4. The vertical chute coal grabber according to claim 3, characterized in that: The grab bucket (23) further comprises a grab bucket frame (237), an oil cylinder (238) and a connecting rod (239); two ends of the oil cylinder (238) are respectively hinged to the first bucket body (233) and the grab bucket frame (237); two ends of the connecting rod (239) are respectively hinged to the second bucket body (234) and the grab bucket frame (237); the oil cylinder (238) is retractable to drive the first bucket body (233) and the second bucket body (234) to rotate relative to each other so as to open or close.
5. The vertical chute coal grabber according to claim 1, characterized in that: The luffing mechanism (17) is a winch luffing mechanism.
6. The vertical chute coal grabber according to claim 1, characterized in that: The hoisting mechanism (19) comprises a front hoist, a rear hoist, a first steel wire rope (193) and a second steel wire rope (194); one end of the first steel wire rope (193) is wound around the front hoist and the other end is connected to the grab bucket (23); one end of the second steel wire rope (194) is wound around the rear hoist and the other end is connected to the grab bucket (23).
7. The vertical chute coal grabber according to claim 6, characterized in that: The hoisting mechanism (19) further comprises a first pulley (195), a second pulley (196), a third pulley (197) and a fourth pulley (198) arranged on the arm frame (21); the first steel wire rope (193) is connected to the grab bucket (23) and then passes through the first pulley (195) and the second pulley (196) in sequence and then is wound around the front hoist; the second steel wire rope (194) is connected to the grab bucket (23) and then passes through the third pulley (197) and the fourth pulley (198) in sequence and then is wound around the rear hoist.
8. The vertical chute coal grabber according to claim 7, characterized in that: The portion of the first steel wire rope (193) located between the first pulley (195) and the grab bucket (23) and the portion of the second steel wire rope (194) located between the third pulley (197) and the grab bucket (23) are staggered in the front-rear direction of the fuselage (15).
9. The vertical chute coal grabber according to claim 7, characterized in that: The first pulley (195) and the second pulley (196) are respectively located at the front side and the rear side of the arm (21), and the third pulley (197) and the fourth pulley (198) are respectively located at the front side and the rear side of the arm (21).
10. The vertical chute coal grabber according to claim 1, characterized in that: The vertical trough coal grabber also includes a power system (27), an electric control system (29) and a hydraulic system (31); the power system (27) and the electric control system (29) are respectively installed on both sides of the machine body (15); the hydraulic system (31) is used to drive the machine body (15) to rotate relative to the chassis (11), and is used to drive the chassis (11) to move and turn.