Portal crane with hopper

Abstract

The utility model discloses a portal crane with a hopper. The portal crane with the hopper comprises a rack and the hopper arranged on the rack. The portal crane with the hopper further comprises a canopy, and the canopy is installed on the rack and has an open state and a closed state. When the rain shed is in the open state, at least part of the rain shed is located over the funnel so as to shield the funnel; when the canopy is in the closed state, the canopy is located on one side of the funnel so as to avoid the funnel. The technical problem that a hopper of an existing portal crane with the hopper is prone to rusting is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wharf transportation, and in particular relates to a crane with a bucket door. Background Art

[0002] A gantry crane with bucket refers to a grab ship unloader with a long cantilever, large amplitude and a rotatable mechanism. The gantry trolley moves along the ground track of the dock and is the most widely used bulk cargo ship unloader. Its basic structure is similar to that of a gantry crane, but a funnel and a belt conveyor system are installed on the gantry. When unloading a ship, the grab bucket unloads the bulk cargo into the funnel, which is then sent to the cargo yard via a belt conveyor. Since the funnel and belt conveyor can be extended and retracted, the operation basically only requires lifting and amplitude adjustment, so the working cycle time is shorter than that of a gantry crane and the unloading efficiency is higher.

[0003] However, since the above-mentioned crane with bucket door is located in an open-air place, its funnel is exposed to rain and sun for a long time, and the funnel is seriously rusted, which seriously affects the service life of the funnel on the one hand, and easily brings pollution to the cargo transportation on the other hand. Summary of the invention

[0004] The purpose of the present disclosure is to provide a crane with a bucket door, which can solve at least part of the above-mentioned technical problems.

[0005] A first aspect of an embodiment of the present disclosure provides a crane with a bucket door, comprising a frame and a hopper arranged on the frame; the crane with a bucket door also includes a canopy, which is installed on the frame and has an open state and a closed state; when the canopy is in the open state, the canopy is at least partially located directly above the funnel to shield the funnel; when the canopy is in the closed state, the canopy is located on one side of the funnel to avoid the funnel.

[0006] Optionally, the awning includes a awning cloth and a frame; the frame includes a fixed truss and a movable truss; the fixed truss is fixedly connected to the frame, and the movable truss is movably connected to the frame; both ends of the awning cloth are respectively connected to the fixed truss and the movable truss, and when the movable truss moves on the frame, the awning switches between the open state and the closed state.

[0007] Optionally, the frame also includes a telescopic frame connected between the fixed truss and the movable truss; the telescopic frame has a folded state and an unfolded state, and when the movable truss moves toward the fixed truss, the telescopic frame gradually switches from the unfolded state to the folded state; when the movable truss moves away from the fixed truss, the telescopic frame gradually switches from the folded state to the unfolded state.

[0008] Optionally, the telescopic frame includes several rows of unit frames distributed in parallel and several groups of first connecting members and second connecting members; the awning cloth is fixedly connected to the several unit frames, and the unit frames are slidably or rollingly installed on the frame; the first connecting member and the second connecting member in each group are hinged to each other, and one end of the first connecting member is hinged to the fixed truss or the adjacent unit frame, and the other end of the first connecting member is hinged to the movable truss or the adjacent unit frame, and one end of the second connecting member is hinged to the fixed truss or the adjacent unit frame, and the other end of the second connecting member is hinged to the movable truss or the adjacent unit frame.

[0009] Optionally, the telescopic frame further comprises a plurality of rollers; the rollers are rotatably mounted on the unit frame;

[0010] The frame comprises a guide rail extending along the moving direction of the movable truss; the roller is in rolling cooperation with the guide rail.

[0011] Optionally, the canopy further includes a driving member, and the driving member is connected to the movable truss; the driving member includes one of a motor, an oil cylinder and a pneumatic cylinder.

[0012] Optionally, the canopy also includes a driving wheel and a rack for transmission cooperation; the rack is fixedly mounted on the frame; the driving wheel is rotatably arranged on the movable truss, and the driving member is used to drive the driving wheel to rotate, thereby driving the driving wheel to move along the rack, and then causing the movable truss to move in a direction close to or away from the fixed truss.

[0013] Optionally, the canopy further includes a limiting member; the limiting member is arranged on the movable truss and / or the telescopic frame, and the upper surface of the limiting member abuts against the frame.

[0014] Optionally, the stopper protrusion is arranged at the bottom end of the movable truss and / or the telescopic frame, and the protrusion direction of the stopper is horizontal and perpendicular to the horizontal direction of movement of the movable truss.

[0015] Optionally, the frame further includes a limiting slide rail; the limiting slide rail extends along the moving direction of the movable truss, the inner surface of the limiting slide rail abuts against the upper surface of the limiting member, and the limiting slide rail is an I-beam or a C-shaped steel.

[0016] The main technical effect achieved by the embodiment of the present disclosure is: the present disclosure avoids the funnel from being directly exposed to wind and rain when not in use by adding a canopy above the funnel, thereby greatly alleviating the rusting of the funnel and increasing the service life of the funnel; at the same time, when the hopper crane is working, the canopy is located on the other side of the funnel and will not affect the normal operation of the funnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of a bucket door machine in one embodiment of the present disclosure (the belt conveying system is omitted);

[0018] Figure 2 For this disclosure Figure 1 Side view of

[0019] Figure 3 It is a schematic diagram of a canopy in an open state in one embodiment of the present disclosure (the canopy cloth is omitted);

[0020] Figure 4 For the purpose of this disclosure Figure 3 A top view of

[0021] Figure 5 This is a schematic diagram of a frame in a closed state in one embodiment of the present disclosure (the awning cloth is omitted).

[0022] Explanation of the reference numerals: 1. frame; 2. funnel; 3. canopy; 30. canopy cloth; 31. frame; 32. fixed truss; 33. movable truss; 34. telescopic frame; 340. unit frame; 341. first connecting member; 342. second connecting member; 35. roller; 36. driving member; 37. driving wheel; 38. rack; 39. limiting member. DETAILED DESCRIPTION

[0023] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The modes described in the following exemplary embodiments do not represent all modes consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0024] The terms used in the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the present disclosure specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate quantitative restrictions, but indicate that there is at least one, and will be separately described if only "one" is referred to. "Multiple" or "several" means two or more. Unless otherwise specified, similar words such as "front", "rear", "bottom" and / or "top" are only for the convenience of explanation, and are not limited to one position or one spatial orientation. Similar words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" cover the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and the like are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "the", and "the" used in this disclosure and the appended claims are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

[0025] The first aspect of the present disclosure provides a gantry crane with a bucket. The gantry crane with a bucket is one of the efficient grab bucket ship unloaders. Its structure is basically similar to that of an ordinary gantry crane, except that in addition to including the same frame as an ordinary gantry crane, it also includes a funnel and a belt conveyor system arranged on the frame, wherein the outlet of the funnel is located directly above the belt conveyor system. When the gantry crane with a bucket is in operation, the grab bucket grabs the bulk cargo from the cabin, and then unloads the bulk cargo into the onboard funnel through lifting and boom-changing actions, and then the cargo is transported to the cargo yard through the belt conveyor. Its lifting speed and boom-changing speed are both higher than those of ordinary gantry cranes, and its operating stroke is short, so using it to unload bulk cargo ships can achieve higher production efficiency than ordinary gantry cranes. It is particularly suitable for working at specialized bulk cargo terminals.

[0026] like Figure 1-5 As shown, the crane with bucket door in the present disclosure further includes a canopy 3. The canopy 3 is mounted on the frame 1 and has an open state and a closed state; when the canopy 3 is in the open state, the canopy 3 is at least partially located directly above the funnel 2 to shield the funnel 2; when the canopy 3 is in the closed state, the canopy 3 is located on one side of the funnel 2 to avoid the funnel 2.

[0027] The present invention adds a canopy 3 above the funnel 2 to avoid the funnel 2 being directly exposed to the wind and rain when not in use, thereby greatly alleviating the rust of the funnel 2 and increasing the service life of the funnel 2; at the same time, when the hopper crane is working, the canopy 3 is located on the other side of the funnel 2 and does not affect the normal operation of the funnel 2.

[0028] As an optional embodiment, the canopy 3 includes a canopy cloth 30 and a frame 31; the frame 31 includes a fixed truss 32 and a movable truss 33; the fixed truss 32 is fixedly connected to the frame 1, and the movable truss 33 is movably connected to the frame 1; the two ends of the canopy cloth 30 are respectively connected to the fixed truss 32 and the movable truss 33, and when the movable truss 33 moves on the frame 1, the canopy 3 switches between an open state and a closed state. The movable truss 33 in the present disclosure switches the canopy 3 between an open state and a closed state by moving on the frame 1, and has a simple structure and is easy to operate.

[0029] As an optional embodiment, the frame 31 further includes a telescopic frame 34 connected between the fixed truss 32 and the movable truss 33; the telescopic frame 34 has a folded state and an unfolded state. When the movable truss 33 moves toward the fixed truss 32, the telescopic frame 34 gradually switches from the unfolded state to the folded state; when the movable truss 33 moves away from the fixed truss 32, the telescopic frame 34 gradually switches from the folded state to the unfolded state. The telescopic frame 34 in the present disclosure can be formed by a plurality of cylindrical structures with different diameters and the same axis that are slidably connected to each other. Of course, considering that the workplace of the crane with bucket door is a dock and the awning 3 is located above the funnel 2, that is, the awning 3 needs to withstand the attack of strong wind for a long time, therefore, as an optional embodiment, the telescopic frame 34 in the present disclosure includes several rows of parallel distributed unit frames 340 and several groups of first connecting members 341 and second connecting members 342; the awning cloth 30 is fixedly connected to several unit frames 340, and the unit frames 340 are slidably or rollingly installed on the frame 1; the first connecting member 341 and the second connecting member 342 in each group are hinged to each other, and one end of the first connecting member 341 is hinged to the fixed truss 32 or the adjacent unit frame 340, and the other end of the first connecting member 341 is hinged to the movable truss 33 or the adjacent unit frame 340, and one end of the second connecting member 342 is hinged to the fixed truss 32 or the adjacent unit frame 340, and the other end of the second connecting member 342 is hinged to the movable truss 33 or the adjacent unit frame 340. It should be noted that the number of the first connecting members 341 and the second connecting members 342 is one more than the number of the unit frames 340 , so as to facilitate the connection of the telescopic frame 34 with the fixed truss 32 and the movable truss 33 .

[0030] As a preferred embodiment, between two adjacent unit frames 340, between the unit frame 340 and the fixed truss 32, or between the unit frame 340 and the movable truss 33, the telescopic frame 34 includes two sets of first connecting members 341 and second connecting members 342 arranged side by side. Such an arrangement can significantly enhance the structural strength of the canopy 3.

[0031] As an optional embodiment, the telescopic frame 34 further includes a plurality of rollers 35; the rollers 35 are rotatably mounted on the unit frame 340; the frame 1 includes a guide rail extending along the moving direction of the movable truss 33; the rollers 35 and the guide rail are in rolling cooperation. Such an arrangement can reduce the friction resistance of the telescopic frame 34, making the telescopic frame 34 more smoothly telescopic.

[0032] As an optional embodiment, the canopy 3 further includes a driving member 36, which is connected to the movable truss 33; the driving member 36 includes one of a motor, a cylinder and a gas cylinder. As a preferred embodiment, the driving member 36 in the present disclosure is a motor to adapt to the high-altitude environment with a bucket door crane.

[0033] As an optional embodiment, the canopy 3 further includes a driving wheel 37 and a rack 38 for transmission cooperation; the rack 38 is fixedly mounted on the frame 1; the driving wheel 37 is rotatably arranged on the movable truss 33, and the driving member 36 is used to drive the driving wheel 37 to rotate, thereby driving the driving wheel 37 to move along the rack 38, and then the movable truss 33 moves in a direction close to or away from the fixed truss 32. Such a configuration has a simple structure and is convenient for operation.

[0034] It should be noted that, in other embodiments, the driving member 36 , ie, the motor, can also drive the movable truss 33 to move by means of a screw nut, thereby driving the telescopic frame 34 to switch between the folded state and the unfolded state.

[0035] As an optional embodiment, the canopy 3 further includes a stopper 39; the stopper 39 is arranged on the movable truss 33 and / or the telescopic frame 34, and the upper surface of the stopper 39 abuts against the frame 1. This is because the canopy 3 is located at the top of the crane with bucket door, generally at a height of several tens of meters from the ground, which is equivalent to a high-altitude environment. In addition, the crane with bucket door is located at the dock, so the canopy 3 needs to withstand the test of strong winds for a long time. Therefore, it is necessary to add a stopper 39 to ensure that the canopy 3 will not be blown away.

[0036] As an optional implementation, the limit member 39 is protruded from the bottom end of the movable truss 33 and / or the telescopic frame 34 , and the protruding direction of the limit member 39 is horizontal and perpendicular to the horizontal direction of movement of the movable truss 33 .

[0037] As an optional embodiment, the frame 1 further includes a limiting slide rail; the limiting slide rail extends along the moving direction of the movable truss 33, the inner surface of the limiting slide rail abuts against the upper surface of the limiting member 39, and the limiting slide rail is an I-beam or a C-shaped steel. Specifically, there are multiple limiting members 39, which are distributed at the bottom end of each unit frame 340, that is, each unit frame 340 is limited by the limiting slide rail to prevent the canopy 3 from being blown away, thereby greatly improving the stability of the canopy 3.

[0038] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A crane with a bucket door, comprising a frame and a hopper arranged on the frame; characterized in that: The crane with a hopper door also includes a canopy, which is installed on the frame and has an open state and a closed state; when the canopy is in the open state, the canopy is at least partially located directly above the funnel to shield the funnel; when the canopy is in the closed state, the canopy is located on one side of the funnel to avoid the funnel.

2. A bucket door crane according to claim 1, characterized in that: The awning includes a awning cloth and a frame; the frame includes a fixed truss and a movable truss; the fixed truss is fixedly connected to the frame, and the movable truss is movably connected to the frame; both ends of the awning cloth are respectively connected to the fixed truss and the movable truss, and when the movable truss moves on the frame, the awning switches between the open state and the closed state.

3. A bucket door crane according to claim 2, characterized in that: The frame also includes a telescopic frame connected between the fixed truss and the movable truss; the telescopic frame has a folded state and an unfolded state. When the movable truss moves toward the fixed truss, the telescopic frame gradually switches from the unfolded state to the folded state; when the movable truss moves away from the fixed truss, the telescopic frame gradually switches from the folded state to the unfolded state.

4. A bucket door crane according to claim 3, characterized in that: The telescopic frame includes several rows of unit frames distributed in parallel and several groups of first connecting members and second connecting members; the awning cloth is fixedly connected to the several unit frames, and the unit frames are slidably or rollingly installed on the frame; the first connecting member and the second connecting member in each group are hinged to each other, and one end of the first connecting member is hinged to the fixed truss or the adjacent unit frame, and the other end of the first connecting member is hinged to the movable truss or the adjacent unit frame, and one end of the second connecting member is hinged to the fixed truss or the adjacent unit frame, and the other end of the second connecting member is hinged to the movable truss or the adjacent unit frame.

5. The crane with bucket door according to claim 4, characterized in that: The telescopic frame also includes a plurality of rollers; the rollers are rotatably mounted on the unit frame; The frame comprises a guide rail extending along the moving direction of the movable truss; the roller is in rolling cooperation with the guide rail.

6. The crane with bucket door according to claim 2, characterized in that: The canopy also includes a driving member, which is connected to the movable truss; the driving member includes one of a motor, an oil cylinder and an air cylinder.

7. The crane with bucket door according to claim 6, characterized in that: The canopy also includes a driving wheel and a rack for transmission cooperation; the rack is fixedly installed on the frame; the driving wheel is rotatably arranged on the movable truss, and the driving member is used to drive the driving wheel to rotate, thereby driving the driving wheel to move along the rack, and then the movable truss moves in a direction close to or away from the fixed truss.

8. A bucket-type crane according to any one of claims 2 or 3, characterized in that: The canopy further comprises a limiting member; the limiting member is arranged on the movable truss and / or the telescopic frame, and the upper surface of the limiting member abuts against the frame.

9. The crane with bucket door according to claim 8, characterized in that: The stopper protrusion is arranged at the bottom end of the movable truss and / or the telescopic frame, and the protrusion direction of the stopper is horizontal and perpendicular to the horizontal direction of movement of the movable truss.

10. The crane with bucket door according to claim 8, characterized in that: The frame also includes a limiting slide rail; the limiting slide rail extends along the moving direction of the movable truss, the inner surface of the limiting slide rail abuts against the upper surface of the limiting member, and the limiting slide rail is an I-beam or a C-shaped steel.

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