Ore wharf portal crane and automated loading and unloading method

Abstract

The present invention relates to the technical field of crane equipment, specifically to an ore dock gantry crane and an automated loading and unloading method, comprising a crane body, a grab assembly, a material dividing assembly, a first conveyor belt, and a second conveyor belt; one end of the crane body is connected to the grab assembly, the grab assembly comprises two hoppers with openings on opposite sides, the two hoppers move to open or close the openings to grab the ore, the front and rear sides of the hoppers are provided with openings connected to the openings, the closing assembly opens and closes the openings, the first conveyor belt is fixed to the ground, the second conveyor belt and the material dividing assembly are both connected to the crane body and can move along the length direction of the first conveyor belt, and the material dividing assembly is used to screen the ore that is dropped after grabbing. The method solves the problem that different hoppers need to be replaced when the crane grabs large block ore and micro-granular ore in the current technology, and the micro-granular ore needs to be screened and loaded with an additional material dividing mechanism after being transported from the ship to the transit area.

Description

Technical Field

[0001] The invention relates to the technical field of crane equipment, in particular to an ore dock portal crane and an automated loading and unloading method. Background Art

[0002] Ore terminal gantry crane refers to a lifting machine that can lift and carry heavy objects vertically and horizontally within a certain range. The gantry crane not only has a tall gantry and a long arm, but also has a high operating speed and a large lifting height, which can meet the mechanized loading and unloading and transshipment needs of ports, docks, ships and vehicles. The ore terminal is a transfer station for ore transportation. After the ore carried by the ship is transported to the dock, the ore is transferred by the gantry crane.

[0003] However, the existing gantry cranes have the following problems when grabbing and transporting ore:

[0004] 1. The ores mined are large block ores and micro granular ores. When grabbing and transporting ores of different sizes, it is necessary to replace hoppers of different specifications for grabbing;

[0005] 2. After the micro-granular ore is transported from the ship to the transit area, it is necessary to further use additional material sorting mechanisms to screen and load the micro-granular ore according to actual usage needs. Summary of the invention

[0006] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide an ore terminal gantry crane and an automated loading and unloading method, which are used to solve the problem that in the current technology, the crane needs to replace different hoppers when grabbing large block ore and micro granular ore, and after the micro granular ore is transported from the ship to the transfer area, an additional material sorting mechanism is required to screen and load the micro granular ore.

[0007] To achieve the above-mentioned and other related purposes, the present invention provides an ore dock portal crane, comprising a crane body, a grab assembly, a material distribution assembly, a first conveyor belt and a second conveyor belt;

[0008] One end of the crane body is connected to the grab assembly through a cable, and the grab assembly is used to grab ore. The grab assembly includes two hoppers, and the opposite surfaces of the two hoppers are open. The two hoppers move to open or close the openings to grab the ore. The front and rear sides of the hoppers are provided with openings connected to the openings, and the openings are provided with a closing assembly, and the closing assembly opens or closes the openings. The bottom end of the crane body is slidably connected to the ground, and the first conveyor belt is fixed to the ground. The second conveyor belt and the dividing assembly are both connected to the crane body, and both can move synchronously with the crane body along the length direction of the first conveyor belt. The dividing assembly is used to screen the ore dropped after being grabbed by the grab assembly and transport it to the first conveyor belt and the second conveyor belt respectively.

[0009] Optionally, the crane body includes a base, a rotating shaft, a first arm, a second arm, a third driving member, a fourth driving member and a first winch;

[0010] The base is slidably connected to the ground, the rotating shaft is rotatably connected to the base and is driven to rotate by a rotating motor installed on the base, one end of the first arm is hinged to the top of the rotating shaft and is driven by a third driving member, the other end of the first arm is hinged to the second arm and is driven by a fourth driving member, the first winch is fixedly installed at one end of the first arm away from the second arm, the cable is connected to the first arm and the second arm through a pulley, and one end of the cable is fixedly connected to the winding shaft of the first winch, and the other end is connected to the grab assembly.

[0011] Optionally, the grab assembly further comprises a mounting frame, a hanger and a knocking piece;

[0012] The hanger is fixedly connected to the cable of the crane body, and the hanger is fixedly connected to the mounting frame. The hanger is located above the mounting frame. The two hoppers are rotatably mounted on the bottom end of the mounting frame. Each of the hoppers is opened or closed under the action of its own first driving member. A knocking member, a first spring, a rotating member and an intermittent driving assembly are provided on the side of each hopper. The knocking member is fixedly connected to one end of the first spring. The mounting frame is provided with movable openings corresponding to the number of the knocking members. The other end of the first spring passes through the movable opening and is fixedly connected to the rotating member. The end of the rotating member connected to the first spring can move in the movable opening. The middle part of the rotating member is rotatably mounted on the mounting frame, and the other end of the rotating member is driven by the intermittent driving assembly to produce indirect rotation.

[0013] Optionally, the knocking member, the first spring, the rotating member and the intermittent drive assembly are symmetrically arranged on the front and rear sides of the hopper.

[0014] Optionally, the intermittent drive assembly includes a second spring, a rotating wheel and a second drive member;

[0015] The second spring is located in the movable mouth, one end of which is fixedly connected to the mounting frame, and the other end of which is fixedly connected to the rotating member. The elastic force of the second spring causes the rotating member to move toward the hopper. The rotating wheel is rotatably mounted on the mounting frame, and a plurality of protrusions are fixedly arranged on the outer circumference of the rotating wheel. One end of the rotating member away from the first spring is located in the gap between two adjacent protrusions of the rotating wheel. The rotating wheel rotates under the action of the second driving member.

[0016] Optionally, it further comprises a first motor, and the two second driving members arranged in front and behind are driven by the first motor together, and the second driving member comprises a first turbine, a first worm, a second bevel gear and a rotating seat;

[0017] A first turbine is also fixedly connected to the rotating shaft of the rotating wheel, the first turbine is meshed with the first worm, the first worm is rotatably mounted on the mounting frame through a rotating seat, one end of the first worm is fixedly connected to a second bevel gear, the first motor is fixedly mounted on the mounting frame, the output shaft of the first motor is fixedly connected to a first bevel gear, and the first bevel gear is meshed with the two second bevel gears at the same time.

[0018] Optionally, the closing assembly includes a closing plate, a second turbine, a second worm, a driven gear, a rack and a fifth driving member;

[0019] One end of the closing plate is rotatably mounted on the side of the hopper, and the closing plate opens or closes the opening of the hopper. The second turbine is fixedly connected to the rotating shaft of the closing plate, and the second turbine is meshed with the second worm, and the second worm is rotatably mounted on the side wall of the hopper. The second worm is also fixedly connected to a driven gear, and the driven gear is meshed with the rack. The rack is driven to extend and retract by the fifth driving member, and the fifth driving member is fixedly connected to the side wall of the hopper.

[0020] Optionally, the material distribution assembly includes a material distribution box, a leaking plate, a plug plate, a cam, a second motor and a pulling mechanism;

[0021] The top of the distribution box is open, and the bottom of one end of the distribution box is rotatably installed on the base of the crane body, and the bottom of the other end of the distribution box is in contact with the cam, and the cam is driven to rotate by the second motor, and the base extends outward toward the side of the cam to form a side plate, and the second motor is installed on the side plate. A first leak is provided at the bottom of one end of the distribution box close to the base, and a second leak is provided on the side of the distribution box facing the base. The leak plate is detachably connected to the distribution box, and the leak plate is tilted and located in the distribution box to divide the first leak and the second leak. The plug plate is movably plugged into the first leak of the distribution box, and the plug plate is pulled by the pulling mechanism to open or close the first leak.

[0022] Optionally, the pulling mechanism includes a second winch and a pull rope, the second winch is fixed on a base of the crane body, one end of the pull rope is fixedly connected to a reel of the second winch, and the other end is connected to the plug plate.

[0023] An automated loading and unloading method, using the above-mentioned ore terminal portal crane, comprises the following steps:

[0024] Grab the ore: operate the crane body to make the hopper enter the ship hold filled with ore to grab the ore;

[0025] When grabbing micro-sized granular ore, the closing plate closes the opening of the hopper, and the first driving member drives the two hoppers to open or close, thereby grabbing the micro-sized granular ore;

[0026] When grabbing large block ore, the closing plate opens the opening of the hopper, and the first driving member drives the two hoppers to open or close, thereby realizing the grabbing of large block ore;

[0027] Discharging: For micro-sized granular ores, after grabbing the ore and filling the hopper, transfer the grabbed ore to the distribution box;

[0028] For large block ores, the grabbed ores are directly transferred to the transport vehicle;

[0029] Material separation: Use the material separation component to screen the micro-granular ore, select the ore of required specifications, and load the screened ore separately for transportation.

[0030] As described above, the present invention has the following beneficial effects:

[0031] 1. This application can grab and transfer large block ores and micro-granular ores without changing hoppers of different specifications; after the micro-granular ores are grabbed, the ore can be screened and loaded through the sorting mechanism, without the need for additional sorting and screening mechanisms, thereby improving the loading efficiency.

[0032] 2. In the present application, after grabbing the micro-granular ore and opening the hopper for delivery, the micro-granular ore located in the inner layer of the hopper is not easy to fall out of the hopper. Through the knocking piece, the first spring, the rotating piece and the intermittent drive assembly arranged on the side of the hopper, the intermittent drive assembly drives the rotating piece to rotate indirectly, and the first spring drives the knocking piece to periodically knock on the side of the hopper, so that the residual material in the inner layer of the hopper falls off from the hopper. The knocking piece, the first spring, the rotating piece and the intermittent drive assembly are symmetrically arranged on the front and rear sides of the hopper, making the overall structure more stable, while ensuring the knocking effect, reducing the impact on the first drive piece, and effectively extending the service life of the first drive piece. When the hopper is opened, the two sides of the hopper enter the knocking range of the knocking piece, and the intermittent drive assembly drives the rotating piece to rotate indirectly. The rotating piece overcomes the elastic force of the second spring to drive the first spring and the knocking piece away from the side of the hopper, and then returns under the elastic force of the second spring, so as to perform reciprocating knocking, so that the residual material is easy to fall off from the hopper. By designing the first spring, when the hopper enters the knocking range of the knocking piece, it will squeeze the knocking pieces on both sides to cause the first spring to bend and deform, so that the knocking piece is tightly attached to the side of the hopper. Under the driving action of the subsequent intermittent drive component, the knocking effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0034] Figure 2 It is a schematic diagram of the structure when the hopper 201 is closed.

[0035] Figure 3 The diagram is a schematic structural diagram of one direction when the hopper 201 is opened.

[0036] Figure 4 The diagram is a schematic structural diagram of one direction when the hopper 201 is opened.

[0037] Figure 5 It is a schematic diagram of the structure when the hopper 201 is displayed alone.

[0038] Figure 6 It is a schematic diagram of the structure of the closed component 7 (after removing the closed component housing).

[0039] Figure 7 It is a schematic diagram showing the position structure of the material distribution box 301 and the plug plate 303 in one direction.

[0040] Figure 8 It is a schematic diagram showing the position structure of the material distribution box 301, the leaking plate 302 and the plugging plate 303 in one direction.

[0041] Component number description

[0042] in:

[0043] Crane body 1, base 101, side plate 1011, rotating shaft 102, first arm 103, second arm 104, third driving member 105, fourth driving member 106, first hoist 107;

[0044] Grab bucket assembly 2, hopper 201, opening 2011, mounting frame 202, movable opening 2021, hanger 203, first driving member 204, knocking member 205, first spring 206, second spring 207, rotating member 208, rotating wheel 209, second driving member 210, first turbine 2101, first worm 2102, second bevel gear 2103, rotating seat 2104, first motor 211, first bevel gear 2111; Material distribution assembly 3, material distribution box 301, first leak 3011, second leak 3012, leak plate 302, plug plate 303, cam 304, second motor 305, pulling mechanism 306, second hoist 3061, pull rope 3062;

[0045] A first conveyor belt 4, a second conveyor belt 5, and a cable 6;

[0046] The closing assembly 7 , the closing plate 701 , the second turbine 702 , the second worm 703 , the driven gear 704 , the rack 705 , and the fifth driving member 706 . DETAILED DESCRIPTION

[0047] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0048] See also Figures 1 to 8 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0049] The following embodiments are only for illustration purposes and can be combined with each other, and are not limited to the contents presented in the following single embodiments.

[0050] See also Figure 1 , Figure 2 and Figure 5 The present invention provides an ore terminal portal crane, comprising a crane body 1, a grab assembly 2, a material dividing assembly 3, a first conveyor belt 4 and a second conveyor belt 5;

[0051] One end of the crane body 1 is connected to the grab assembly 2 through a cable 6. The grab assembly 2 is used to grab the ore. The grab assembly 2 includes two hoppers 201. The opposite surfaces of the two hoppers 201 are open. The two hoppers 201 move to open or close the openings to grab the ore. The front and rear sides of the hopper 201 are provided with openings 2011 connected to the openings. The opening 2011 is provided with a closing assembly 7. The closing assembly 7 opens or closes the opening 2011. The bottom end of the crane body 1 is slidably connected to the ground, the first conveyor belt 4 is fixed to the ground, the second conveyor belt 5 and the dividing assembly 3 are both connected to the crane body 1, and both can move synchronously with the crane body 1 along the length direction of the first conveyor belt 4. The dividing assembly 3 is used to screen the ore dropped after being grabbed by the grab assembly 2 and transport it to the first conveyor belt 4 and the second conveyor belt 5 respectively. In this embodiment, the crane body 1 can move along the length direction of the first conveyor belt 4, and can grab the ore loaded in each storage bin on the ship's hull, with high flexibility. The second conveyor belt 5 and the material distribution component 3 are fixed to the crane body 1, which can conveniently distribute and transport the ore. Figure 5 The openings 2011 on the front and rear sides of the hopper 201 are provided with sawtooth-shaped bite teeth. The advantage of this design is that it can better bite and grab large block ores. The surface of the bite teeth in contact with the ore can also be covered with a rubber layer to avoid damage to the ore during grabbing. Figure 6 The outer back side of the hopper 201 is provided with multiple arc-shaped reinforcing ribs at intervals to strengthen the structural strength of the hopper 201. The present application can capture and transport large block ores and micro-granular ores without replacing hoppers 201 of different specifications; after the micro-granular ores are captured, the ore can be screened and loaded by the material separation mechanism without the need for an additional material separation and screening mechanism, thereby improving the loading efficiency.

[0052] In this embodiment, Figure 1 The crane body 1 includes a base 101, a rotating shaft 102, a first arm 103, a second arm 104, a third driving member 105, a fourth driving member 106 and a first hoist 107;

[0053] The base 101 is slidably connected to the ground. In one implementation, the base 101 can be slidably connected to the ground by using a combination of rollers and rails. The rotating shaft 102 is rotatably connected to the base 101 and driven to rotate by a rotating motor installed on the base 101. One end of the first arm 103 is hinged to the top of the rotating shaft 102 and driven by a third driving member 105. In this embodiment, the third driving member 105 is an electro-hydraulic push rod. The two ends of the third driving member 105 are respectively hinged to the rotating shaft 102 and the first arm 103. The other end of the arm 103 is hinged to the second arm 104 and driven by the fourth driving member 106. In this embodiment, the fourth driving member 106 is an electro-hydraulic push rod. The two ends of the fourth driving member 106 are respectively hinged to the first arm 103 and the second arm 104. The first hoist 107 is fixedly installed at one end of the first arm 103 away from the second arm 104. The cable 6 is connected to the first arm 103 and the second arm 104 through a pulley, and one end of the cable 6 is fixedly connected to the reel of the first hoist 107, and the other end is connected to the grab assembly 2. In this embodiment, a control room is also included, which controls the actions of the rotating motor, the third driving member 105, the fourth driving member 106 and the first hoist 107.

[0054] In this embodiment, Figure 2 , the grab assembly 2 also includes a mounting frame 202, a hanger 203 and a knocking member 205;

[0055] The hanger 203 is fixedly connected to the cable 6 of the crane body 1, and the hanger 203 is fixedly connected to the mounting frame 202. The hanger 203 is located above the mounting frame 202. The two hoppers 201 are rotatably mounted on the bottom end of the mounting frame 202. Each hopper 201 is opened or closed under the action of its own first driving member 204. In this embodiment, Figure 4The first driving member 204 is an electro-hydraulic push rod, and the two ends of the first driving member 204 are respectively hinged to the bottom end of the mounting frame 202 and the hopper 201. The side of each hopper 201 is provided with a knocking member 205, a first spring 206, a rotating member 208 and an intermittent driving assembly. The knocking member 205 is fixedly connected to one end of the first spring 206. The mounting frame 202 is provided with movable openings 2021 corresponding to the number of the knocking members 205. The other end of the first spring 206 passes through the movable opening 2021 and is fixedly connected to the rotating member 208. The end of the rotating member 208 connected to the first spring 206 can move in the movable opening 2021. The middle part of the rotating member 208 is rotatably installed on the mounting frame 202, and the other end of the rotating member 208 is driven by the intermittent driving assembly to produce indirect rotation. In this embodiment, after the hopper 201 is opened, the material in the inner layer of the hopper 201 is not easy to fall off from the hopper 201, especially for micro-sized granular ores. The mined micro-sized granular ores are mixed with dust. After the dust enters the hopper 201, it is easy to adhere to the inner cavity of the hopper 201. After long-term accumulation, it is difficult to clean and will corrode the hopper 201. In this embodiment, through the knocking member 205, the first spring 206, the rotating member 208 and the intermittent driving assembly arranged on the side of the hopper, the intermittent driving assembly drives the rotating member 208 to rotate indirectly, and the first spring 206 drives the knocking member 205 to periodically knock the side of the hopper 201, so that the residual material in the inner layer of the hopper 201 falls off from the hopper 201.

[0056] In this embodiment, the knocking member 205, the first spring 206, the rotating member 208 and the intermittent driving assembly are symmetrically arranged on the front and rear sides of the hopper 201. In this embodiment, the knocking member 205, the first spring 206, the rotating member 208 and the intermittent driving assembly are symmetrically arranged on the front and rear sides of the hopper 201, so that the overall structure is more stable, while ensuring the knocking effect, the impact on the first driving member 204 is reduced, and the service life of the first driving member 204 is effectively extended.

[0057] In this embodiment, the intermittent drive assembly includes a second spring 207, a rotating wheel 209 and a second drive member 210;

[0058] The second spring 207 is located in the movable opening 2021, one end of which is fixedly connected to the mounting frame 202, and the other end of which is fixedly connected to the rotating member 208. The elastic force of the second spring 207 causes the rotating member 208 to move toward the hopper 201, and the rotating wheel 209 is rotatably installed on the mounting frame 202. A plurality of protrusions are arranged at fixed intervals on the outer circumference of the rotating wheel 209. One end of the rotating member 208 away from the first spring 206 is located in the gap between two adjacent protrusions of the rotating wheel 209, and the rotating wheel 209 rotates under the action of the second driving member 210.

[0059] In this embodiment, Figure 3, further comprising a first motor 211, two second driving members 210 arranged in front and rear are driven by the first motor 211, and the second driving member 210 comprises a first turbine 2101, a first worm 2102, a second bevel gear 2103 and a rotating seat 2104;

[0060] A first turbine 2101 is also fixedly connected to the rotating shaft of the rotating wheel 209, and the first turbine 2101 is meshed with a first worm 2102, and the first worm 2102 is rotatably mounted on the mounting frame 202 through a rotating seat 2104, and one end of the first worm 2102 is fixedly connected to a second bevel gear 2103, and a first motor 211 is fixedly mounted on the mounting frame 202, and an output shaft of the first motor 211 is fixedly connected to a first bevel gear 2111, and the first bevel gear 2111 is simultaneously meshed with two second bevel gears 2103. In this embodiment, the first motor 211 is controlled by the control room. In the present embodiment, the control room controls the first motor 211 to rotate, the first motor 211 drives the first bevel gear 2111 to rotate, the first bevel gear 2111 drives the two second bevel gears 2103 to rotate, the second bevel gear 2103 drives the first worm 2102 to rotate, the first worm 2102 drives the first turbine 2101 to rotate, the first turbine 2101 drives the rotating wheel 209 to rotate, the rotating wheel 209 interval makes the rotating member 208 rotate, thereby driving the first spring 206 and the knocking member 205 to produce movement, so that the knocking member 205 cyclically knocks the hopper 201. In the present embodiment, the rotating wheel 209 can also be directly driven to rotate by a motor, and the overall structure requires four motors. In the present embodiment, the two second driving members 210 arranged before and after are driven by the first motor 211 together, and the overall structure requires two motors, which saves the number of motors installed. The advantage of such a design is that during long-term use, the motor is prone to failure, and reducing the number of motors used can reduce the probability of failure of this application when in use, and the motor cost is high at the same time, and reducing the motor can save costs.

[0061] In this embodiment, Figure 2 and Figure 6 , Figure 6 The figure shows the internal structure after the enclosure of the closed component is removed. The enclosure of the closed component protects the internal structure. The closed component 7 includes a closed plate 701, a second turbine 702, a second worm 703, a driven gear 704, a rack 705 and a fifth driving member 706;

[0062] One end of the closing plate 701 is rotatably mounted on the side of the hopper 201, and the closing plate 701 opens or closes the opening 2011 of the hopper 201. The second turbine 702 is fixedly connected to the rotating shaft of the closing plate 701, and the second turbine 702 is meshed with the second worm 703. The second worm 703 is rotatably mounted on the side wall of the hopper 201. The second worm 703 is also fixedly connected to a driven gear 704, and the driven gear 704 is meshed with a rack 705. The rack 705 is driven to extend and retract by a fifth driving member 706, and the fifth driving member 706 is fixedly connected to the side wall of the hopper 201. In this embodiment, the control room controls the fifth driving member 706, and the fifth driving member 706 is an electro-hydraulic push rod, and the fixed end of the electro-hydraulic push rod is fixedly connected to the side wall of the hopper 201, and the telescopic end of the electro-hydraulic push rod is fixedly connected to the rack 705. In this embodiment, the control room controls the extension and retraction of the fifth driving member 706, and the fifth driving member 706 drives the rack 705 to extend and retract, and the extension and retraction of the rack 705 drives the driven gear 704 to rotate, and the rotation of the driven gear 704 drives the second worm 703 to rotate, and the rotation of the second worm 703 drives the second turbine 702 to rotate, and the rotation of the second turbine 702 causes the closing plate 701 to rotate so as to open or close the opening 2011 of the hopper 201. In this embodiment, the second turbine 702 and the second worm 703 constitute a self-locking function, and the second turbine 702 can only be driven by the second worm 703 to move. By utilizing the self-locking of the second turbine 702 and the second worm 703, after the closing plate 701 rotates to open or close the opening 2011 of the hopper 201, the posture of the closing plate 701 after rotation can be maintained.

[0063] In this embodiment, Figure 1 , Figure 7 and Figure 8 The material distribution assembly 3 includes a material distribution box 301, a leaking plate 302, a plugging plate 303, a cam 304, a second motor 305 and a pulling mechanism 306;

[0064] The top of the material distribution box 301 is open, and the bottom of one end of the material distribution box 301 is rotatably mounted on the base 101 of the crane body 1. The bottom of the other end of the material distribution box 301 is in contact with the cam 304, and the cam 304 is driven to rotate by the second motor 305. The base 101 extends outward toward the side of the cam 304 to form a side plate 1011. The second motor 305 is installed on the side plate 1011. The bottom of the end of the material distribution box 301 close to the base 101 is provided with a first leak 3011. The material distribution box 301 is disposed toward the base 101. 01 is provided with a second leakage opening 3012 on the side, and the leakage plate 302 is detachably connected to the distribution box 301, specifically, it can be detachably connected by bolts, so that funnels of different specifications can be replaced to meet different screening and distribution requirements. The leakage plate 302 is tilted and located in the distribution box 301 to separate the first leakage opening 3011 and the second leakage opening 3012, and the plug plate 303 is movably plugged into the first leakage opening 3011 of the distribution box 301, and the plug plate 303 is pulled by the pulling mechanism 306 to open or close the first leakage opening 3011.

[0065] In this embodiment, the pulling mechanism 306 includes a second hoist 3061 and a pull rope 3062. The second hoist 3061 is fixed on the base 101 of the crane body 1. One end of the pull rope 3062 is fixedly connected to the reel of the second hoist 3061, and the other end is connected to the plug plate 303. In this embodiment, the reel of the second hoist 3061 rotates to pull the plug plate 303 to open or close the first leak 3011. In this embodiment, the second winch 3061 and the second motor 305 are controlled by the control room. When the material grabbed by the hopper 201 is put into the distribution box 301, the second motor 305 drives the cam 304 to rotate, and the cam 304 causes the distribution box 301 to shake, thereby screening the ore. The ore larger than the aperture of the leakage plate 302 is located in the upper layer, and the ore or dust smaller than the aperture of the leakage plate 302 leaks out from the second leakage port 3012 and then enters the first conveyor belt 4 for transportation. After the ore on the upper layer is screened, the winding shaft of the second winch 3061 rotates to pull the plug plate 303 to open the first leakage port 3011, so that the ore on the upper layer of the leakage plate 302 can be transferred from the first leakage port 3011 to the second conveyor belt 5, and the second conveyor belt 5 then transports the screened ore. In order to prevent the cam 304 from causing the distribution box 301 to shake and the plug plate 303 to shake, causing the first leakage port 3011 to be in an open and close state, a magnetic part can be set at the bottom end of the plug plate 303, and an adsorption part is set at the corresponding position of the magnetic part of the distribution box 301 and the plug plate 303. The adsorption part can be made of iron. When the plug plate 303 falls, the magnetic part and the adsorption part are adsorbed to prevent the plug plate 303 from shaking and opening and closing. When the first leakage port 3011 needs to be opened, the second winch 3061 is used to pull the pull rope 3062 to overcome the adsorption force between the magnetic part and the adsorption part.

[0066] The present application also includes an automated loading and unloading method, using an ore dock portal crane, comprising the following steps:

[0067] Grabbing materials: operating the crane body 1 to make the hopper 201 enter the ship hold containing ore to grab the ore;

[0068] When grabbing micro-sized granular ore, the closing plate 701 closes the opening 2011 of the hopper 201, and the first driving member 204 drives the two hoppers 201 to open or close, thereby grabbing the micro-sized granular ore;

[0069] When grabbing large block ore, the closing plate 701 opens the opening 2011 of the hopper 201, and the first driving member 204 drives the two hoppers 201 to open or close, thereby realizing the grabbing of large block ore;

[0070] Discharging: For micro-sized granular ores, after grabbing the ore and filling the hopper 201, the grabbed portion of ore is transferred to the distribution box 301;

[0071] For large block ores, the grabbed ores are directly transferred to the transport vehicle;

[0072] Material separation: the material separation component 3 is used to screen the micro-granular ore, screen out the ore of required specifications, and the screened ore is loaded and transported separately.

[0073] The above steps can be controlled by the control room to control each driving element, thereby realizing automatic loading and unloading.

[0074] Working principle of the present invention:

[0075] Grabbing materials: operating the crane body 1 to make the hopper 201 enter the ship hold containing ore to grab the ore;

[0076] When grabbing micro-sized granular ore, the closing plate 701 closes the opening 2011 of the hopper 201, and the first driving member 204 drives the two hoppers 201 to open or close, thereby grabbing the micro-sized granular ore;

[0077] When grabbing large block ore, the closing plate 701 opens the opening 2011 of the hopper 201, and the first driving member 204 drives the two hoppers 201 to open or close, thereby realizing the grabbing of large block ore;

[0078] Discharging: For micro-sized granular ores, the captured ores are transferred to the distributing box 301;

[0079] For large block ores, the grabbed ores are directly transferred to the transport vehicle;

[0080] Material separation: the material separation component 3 is used to screen the micro-granular ore, screen out the ore of required specifications, and the screened ore is loaded and transported separately.

[0081] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An ore terminal portal crane, characterized in that: It comprises a crane body (1), a grab bucket assembly (2), a material distribution assembly (3), a first conveyor belt (4) and a second conveyor belt (5); The material distribution assembly (3) comprises a material distribution box (301), one end of the crane body (1) is connected to the grab assembly (2) via a cable (6), the grab assembly (2) is used to grab ore, the grab assembly (2) comprises two hoppers (201), the opposite surfaces of the two hoppers (201) are open, the two hoppers (201) move to open or close the openings to grab ore, the front and rear sides of the hopper (201) are both provided with openings (211) connected to the openings, and the openings (211) are provided with a closing assembly (7). , the closing component (7) enables the opening (2011) to be opened or closed, the bottom end of the crane body (1) is slidably connected to the ground, the first conveyor belt (4) is fixed to the ground, the second conveyor belt (5) and the material dividing component (3) are both connected to the crane body (1), and can move synchronously with the crane body (1) along the length direction of the first conveyor belt (4), and the material dividing component (3) is used to screen the ore grabbed by the grab bucket component (2) and transport it to the first conveyor belt (4) and the second conveyor belt (5) respectively; The closing assembly (7) comprises a closing plate (701), a second turbine (702), a second worm (703), a driven gear (704), a rack (705), and a fifth driving member (706); One end of the closing plate (701) is rotatably mounted on the side of the hopper (201), and the closing plate (701) enables the opening (2011) of the hopper (201) to be opened or closed. The second turbine (702) is fixedly connected to the rotating shaft of the closing plate (701), and the second turbine (702) is meshed with the second worm (703). The second worm (703) is rotatably mounted on the side wall of the hopper (201). The second worm (703) is also fixedly connected to a driven gear (704), and the driven gear (704) is meshed with the rack (705). The rack (705) is driven to extend and retract by the fifth driving member (706), and the fifth driving member (706) is fixedly connected to the side wall of the hopper (201).

2. The ore terminal gantry crane according to claim 1, characterized in that: The crane body (1) comprises a base (101), a rotating shaft (102), a first arm (103), a second arm (104), a third driving member (105), a fourth driving member (106) and a first hoist (107); The base (101) is slidably connected to the ground, the rotating shaft (102) is rotatably connected to the base (101) and driven to rotate by a rotating motor installed on the base (101), one end of the first arm (103) is hinged to the top of the rotating shaft (102) and driven by a third driving member (105), the other end of the first arm (103) is hinged to the second arm (104) and driven by a fourth driving member (106), the first hoist (107) is fixedly installed on one end of the first arm (103) away from the second arm (104), the cable (6) is connected to the first arm (103) and the second arm (104) through a pulley, one end of the cable (6) is fixedly connected to the winding shaft of the first hoist (107), and the other end is connected to the grab assembly (2).

3. The ore terminal gantry crane according to claim 1, characterized in that: The grab bucket assembly (2) further comprises a mounting frame (202), a hanger (203) and a knocking piece (205); The hanger (203) is fixedly connected to the cable (6) of the crane body (1), and the hanger (203) is fixedly connected to the mounting frame (202). The hanger (203) is located above the mounting frame (202). The two hoppers (201) are rotatably mounted on the bottom end of the mounting frame (202). Each of the hoppers (201) is opened or closed under the action of its own first driving member (204). A knocking member (205), a first spring (206), a rotating member (208) and an intermittent driving assembly are provided on the side of each of the hoppers (201). (205) is fixedly connected to one end of the first spring (206), the mounting frame (202) is provided with movable openings (2021) corresponding to the number of the striking members (205), the other end of the first spring (206) passes through the movable opening (2021) and is fixedly connected to the rotating member (208), one end of the rotating member (208) connected to the first spring (206) can move in the movable opening (2021), the middle part of the rotating member (208) is rotatably mounted on the mounting frame (202), and the other end of the rotating member (208) is driven by the intermittent driving component to generate indirect rotation.

4. The ore terminal portal crane according to claim 3, characterized in that: The knocking member (205), the first spring (206), the rotating member (208) and the intermittent drive assembly are symmetrically arranged on the front and rear sides of the hopper (201).

5. The ore terminal portal crane according to claim 3, characterized in that: The intermittent drive assembly comprises a second spring (207), a rotating wheel (209) and a second driving member (210); The second spring (207) is located in the movable opening (2021), one end of which is fixedly connected to the mounting frame (202), and the other end of which is fixedly connected to the rotating member (208). The elastic force of the second spring (207) causes the rotating member (208) to move toward the hopper (201). The rotating wheel (209) is rotatably mounted on the mounting frame (202). A plurality of protrusions are arranged at fixed intervals on the outer peripheral surface of the rotating wheel (209). One end of the rotating member (208) away from the first spring (206) is located in a gap between two adjacent protrusions of the rotating wheel (209). The rotating wheel (209) rotates under the action of the second driving member (210).

6. The ore terminal portal crane according to claim 5, characterized in that: It also comprises a first motor (211), two second driving members (210) arranged in front and behind are driven by the first motor (211), and the second driving member (210) comprises a first turbine (2101), a first worm (2102), a second bevel gear (2103) and a rotating seat (2104); A first turbine (2101) is also fixedly connected to the rotating shaft of the rotating wheel (209); the first turbine (2101) meshes with the first worm (2102); the first worm (2102) is rotatably mounted on the mounting frame (202) via a rotating seat (2104); one end of the first worm (2102) is fixedly connected to a second bevel gear (2103); the first motor (211) is fixedly mounted on the mounting frame (202); the output shaft of the first motor (211) is fixedly connected to a first bevel gear (2111); and the first bevel gear (2111) meshes with the two second bevel gears (2103) at the same time.

7. The ore terminal portal crane according to claim 1, characterized in that: The material distribution assembly (3) further comprises a leaking plate (302), a plugging plate (303), a cam (304), a second motor (305) and a pulling mechanism (306); The top of the material distribution box (301) is open, and the bottom of one end of the material distribution box (301) is rotatably mounted on the base (101) of the crane body (1). The bottom of the other end of the material distribution box (301) is in contact with the cam (304), and the cam (304) is driven to rotate by the second motor (305). The base (101) extends outward toward the side of the cam (304) to form a side plate (1011), and the second motor (305) is mounted on the side plate (1011). The bottom of one end of the material distribution box (301) close to the base (101) is provided with a first A leakage opening (3011) is provided on the side of the material distribution box (301) facing the base (101); the leakage plate (302) is detachably connected to the material distribution box (301); the leakage plate (302) is tilted and located in the material distribution box (301) to separate the first leakage opening (3011) and the second leakage opening (3012); the plug plate (303) is movably plugged into the first leakage opening (3011) of the material distribution box (301); the plug plate (303) is pulled by the pulling mechanism (306) to open or close the first leakage opening (3011).

8. The ore terminal portal crane according to claim 7, characterized in that: The pulling mechanism (306) comprises a second hoist (3061) and a pull rope (3062); the second hoist (3061) is fixed on a base (101) of the crane body (1); one end of the pull rope (3062) is fixedly connected to a reel of the second hoist (3061), and the other end is connected to the plug plate (303).

9. An automated loading and unloading method, characterized in that: Using an ore terminal gantry crane as claimed in any one of claims 1 to 8, comprising the following steps: Grabbing materials: operating the crane body (1) to allow the hopper (201) to enter the ship hold containing ore to grab the ore; When grabbing micro-sized granular ore, the closing plate (701) closes the opening (2011) of the hopper (201), and the first driving member (204) drives the two hoppers (201) to open or close, thereby achieving the grabbing of the micro-sized granular ore; When grabbing a large block of ore, the closing plate (701) opens the opening (2011) of the hopper (201), and the first driving member (204) drives the two hoppers (201) to open or close, thereby achieving the grabbing of the large block of ore; Discharging: For micro-sized granular ores, after grabbing the ore to fill the hopper (201), the grabbed portion of ore is transferred to the distribution box (301); For large block ores, the grabbed ores are directly transferred to the transport vehicle; Material separation: The material separation component (3) is used to screen the micro-sized granular ore to select the ore of required specifications, and the screened ore is loaded and transported separately.

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