Portal crane for feed transportation

Abstract

The invention relates to the field of slope protection, in particular to a portal crane for feed transportation, and solves the problems that during feed loading and unloading, feed needs to bypass a lifting rope, namely, the lifting rope has a certain influence on feed loading and unloading, the loading and unloading efficiency is influenced, and during feed transportation, the peripheral side of a supporting plate is only protected by the lifting rope, and the feed falls off. The device comprises a main cross beam and supporting mechanisms located at the left end and the right end of the main cross beam, two first sliding blocks are slidably arranged on the main cross beam in the left-right direction, first rod bodies are hinged to the lower portions of the first sliding blocks, side plates are hinged to the first rod bodies, a supporting plate is arranged between the bottoms of the two side plates, and the two side plates are located on the left side and the right side of the supporting plate; the device further comprises a control mechanism for controlling the two first sliding blocks to move face to face or back to back, and when the distance between the two first sliding blocks is changed, the first rod body, the side plates and the supporting plate are sequentially driven to move, so that the height of the supporting plate is changed. Multiple bags of feed can be conveniently carried, loaded and unloaded one by one, and the stability of the supporting plate is higher.

Description

Technical Field

[0001] This invention relates to the field of crane equipment technology, and more specifically to a gantry crane for transporting feed. Background Technology

[0002] Gantry cranes are generally used for project installation, such as for large equipment, which requires a wide site. They are often used to lift very heavy goods. The main structure of a gantry crane includes a main beam and support mechanisms located at both ends of the main beam. The main beam is equipped with lifting equipment, such as winches and electric hoists. Traditional gantry cranes are mostly used in port cargo yards. The position of the support mechanism remains unchanged, and the lifting equipment can lift the goods and move them along the main beam to realize the transportation of the lifted objects. However, because the equipment occupies a large area, it is limited in location when transporting feed and is not convenient for flexible use in small and medium-sized factories.

[0003] A portable gantry crane is available, with an overall structure similar to traditional gantry cranes, but smaller in size. It features casters at the support mechanism and a lifting device fixed to the main beam. This lifting device connects to a pallet via multiple ropes. When transporting small to medium-sized goods, the goods are placed on the pallet, and the lifting device and ropes lift the pallet, then push the support mechanism to move the entire crane. This allows for flexible transport of goods to various locations, making it suitable for use in small factories. However, this gantry crane presents some inconveniences when transporting feed. Feed is typically packaged in woven bags, requiring multiple bags to be handled individually. Furthermore, to prevent the pallet from tipping over, the ropes are usually symmetrically positioned around the pallet. During loading and unloading, the feed must avoid the ropes, impacting loading and unloading efficiency. Additionally, with only ropes protecting the pallet, there is a risk of feed falling during transport.

[0004] Therefore, the present invention provides a gantry crane for feed transportation that is highly stable and easy to load and unload, in order to solve the above problems. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides a gantry crane for feed transportation, which solves the problem of the existing portable gantry crane. When transporting feed, in order to prevent the pallet from tipping over, multiple lifting ropes are usually symmetrically arranged around the pallet. When loading and unloading feed, the feed needs to go around the lifting ropes, which means that the lifting ropes will have a certain impact on the loading and unloading of feed, affecting the loading and unloading efficiency. Moreover, when transporting feed, since the pallet is only protected by lifting ropes, there is a problem of feed falling off.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A gantry crane for transporting feed includes a main crossbeam and support mechanisms located at the left and right ends of the main crossbeam. Two first sliders are slidably mounted on the main crossbeam in a left-right direction. A first rod is hinged below the first slider, and a side plate is hinged to the first rod. A support plate is provided between the bottoms of the two side plates, and the two side plates are located on the left and right sides of the support plate. The crane also includes a control mechanism for controlling the movement of the two first sliders toward each other or away from each other. When the distance between the two first sliders changes, the first rod, side plates, and support plate are moved in sequence, thereby changing the height of the support plate.

[0008] Preferably, the control mechanism includes a winch fixedly installed in the middle of the main crossbeam, a lifting plate above the winch, a second rod between the lifting plate and the first slider, the second rod being hinged to the first slider and the lifting plate respectively, and the lifting plate being connected to the traction rope of the winch.

[0009] Preferably, a support seat is fixedly provided in the middle of the main crossbeam, the winch is fixedly mounted on the support seat, and a limiting mechanism is provided between the lifting plate and the support seat to control the lifting plate to move only in the vertical direction.

[0010] Preferably, the lifting plate is fixedly connected to a limit rod, and the limit rod is slidably connected to the support seat in the vertical direction.

[0011] Preferably, the front and rear sides of the pallet are hinged with baffles, which can block the front and rear sides of the pallet when the pallet is raised.

[0012] Preferably, the side plate is provided with a sliding groove along the front-to-back direction, and two second sliders are slidably arranged in the sliding groove. Extension plates are provided on the left and right sides of the baffle. A third rod is provided between the extension plate and the corresponding second slider. The third rod is hinged to the extension plate and the second slider respectively. The second slider is hinged to a fourth rod. The two corresponding fourth rods are hinged to a lifting rod. When the two first sliders move in opposite directions, driving the side plate and the support plate to rise, the first rods press the lifting rod to move downward, which in turn drives the corresponding second slider to move through the fourth rod, and drives the extension plate and the baffle to move through the third rod, thereby realizing the baffle blocking the front and rear sides of the support plate.

[0013] Preferably, a support plate is fixedly provided on the side plate, and a telescopic rod along the vertical direction is provided on the top of the support plate, with the lifting rod fixedly installed on the top of the telescopic rod.

[0014] Preferably, a torsion spring is provided between the baffle and the support plate, so that in its natural state, the baffle is flush with the support plate under the action of the torsion spring.

[0015] Preferably, the top of the lifting rod is provided with a rotating roller.

[0016] Preferably, the support mechanism includes a support frame and an adjusting rod that slides vertically along the support frame. The adjusting rod and the support frame are provided with a matching fixing hole, and the adjusting rod is fixedly connected to the main crossbeam.

[0017] The beneficial effects of the present invention are:

[0018] 1. In this invention, the height of the pallet is controlled by controlling the position of the two first sliders. When loading and unloading feed, the pallet is adjusted to a lower position. At this time, there is less obstruction around the pallet, which makes it easier to handle and unload multiple bags of feed one by one, which can greatly improve work efficiency. When transporting feed, after the pallet is adjusted to a certain height, the stability of the pallet is higher. When pushing the equipment to move, the shaking of the pallet can be avoided, reducing the occurrence of feed falling and bumping.

[0019] 2. This invention eliminates the need for multiple lifting ropes, thus preventing the ropes from tangling and causing problems with the suspension.

[0020] The wear and tear on the rope makes it easier to maintain and repair the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention during feed loading and unloading;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle during feed loading and unloading;

[0023] Figure 3 This is a schematic diagram illustrating the specific transmission relationship between the first rod and the baffle in this invention;

[0024] Figure 4 for Figure 3 A schematic diagram of the first rod rotating in the middle;

[0025] Figure 5 This is a schematic diagram illustrating the specific transmission relationship between the lifting rod and the third rod in this invention;

[0026] Figure 6 for Figure 5 A schematic diagram of the lifting boom moving downwards;

[0027] Figure 7 This is a schematic diagram of the existing method of lifting a pallet using a sling.

[0028] In the diagram: 1. Support frame, 2. Adjusting rod, 3. Main crossbeam, 4. First slider, 5. Second rod, 6. Winch, 7. Lifting plate, 8. First rod, 9. Rotary roller, 10. Lifting rod, 11. Support plate, 12. Side plate, 13. Slide groove, 14. Fourth rod, 15. Telescopic rod, 16. Second slider, 17. Third rod, 18. Support plate, 19. Extension plate, 20. Baffle, 21. Support seat, 22. Limiting rod, 23. Lifting rope. Detailed Implementation

[0029] The following will refer to the attached reference. Figures 1 to 7 The various embodiments of the present invention will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0030] A gantry crane for transporting feed, as shown in the attached image. Figure 1 As shown, the device includes a main crossbeam 3 and support mechanisms located at the left and right ends of the main crossbeam 3. The main crossbeam 3 and the support mechanisms support the entire device. The support mechanisms are equipped with casters at the bottom for movement. This part of the mechanism is existing technology and will not be described in detail here. Two first sliders 4 are slidably mounted on the main crossbeam 3 in the left and right direction. A first rod 8 is hinged below the first slider 4, with the hinge axis in the front and back direction. A side plate 12 is hinged to the bottom of the first rod 8, with the hinge axis in the front and back direction. A support plate 18 is provided between the bottoms of the two side plates 12, and the two side plates 12 are located on the left and right sides of the support plate 18. The two side plates 12 and the support plate 18 together form a "U"-shaped structure, that is, the left and right sides of the support plate 18 are blocked by the side plates 12, while the front and back sides of the support plate 18 are open, and the distance between the two side plates 12 remains unchanged. The device also includes a control mechanism to control the movement of the two first sliders 4 towards or away from each other.

[0031] Working principle: The control mechanism controls the two first sliders 4 to move synchronously towards or away from each other. When the distance between the two first sliders 4 changes, it causes the distance between the tops of the two first rods 8 to change. Since the distance between the two side plates 12 and the distance between the bottom ends of the two first rods 8 remain unchanged, the positions of the two first rods 8 rotate, thereby causing the height of the side plates 12 to change, which in turn causes the support plate 18 to move, changing the height of the support plate 18. In this embodiment, when the two first sliders 4 are closest to each other, the first rods 8 are in a vertical state. That is, when the two first sliders 4 move towards each other, the height of the support plate 18 decreases, and when the two first sliders 4 move away from each other, the height of the support plate 18 increases.

[0032] In practical use, during feed loading and unloading, the position of the pallet 18 is controlled by the control mechanism, causing the two first sliders 4 to move towards each other to the closest distance. At this time, the pallet 18 is in a lower position, and its height can be slightly higher than the bottom of the support mechanism. This height facilitates workers to handle and unload multiple bags of feed from the front and rear sides of the pallet 18. The state at this time can be referred to the attached document. Figure 1 , Figure 2 As shown; when transporting feed, the position of the pallet 18 is controlled by the control mechanism, so that the two first sliders 4 move in opposite directions. At this time, the pallet 18 is raised to achieve lifting. After lifting, the support mechanism is then pushed to achieve feed transportation.

[0033] In this invention, the front and rear sides of the pallet 18 are unobstructed during feed loading and unloading, compared to the traditional method (as shown in the attached diagram). Figure 7 As shown, the pallet 18 is provided with multiple lifting ropes 23 around its perimeter. The present invention is not affected by the lifting ropes 23, which facilitates quick loading and unloading of feed, improves work efficiency, and makes it easier for workshop workers to operate. When transporting feed, the pallet 18 is relatively stable with less shaking, which can reduce the occurrence of feed falling and bumping. Furthermore, since the multiple lifting ropes 23 are eliminated, there will be no entanglement or wear between the lifting ropes 23, which facilitates the maintenance and upkeep of the equipment.

[0034] Additionally, it should be noted that in this invention, the first rod 8 is hinged to the side plate 12 via a hinge seat. The hinge seat and the side plate 12 can be detachably connected. When storing, the first rod 8 can be separated from the side plate 12, thus facilitating storage.

[0035] As attached Figure 1 , Figure 2 As shown, in this embodiment, the control mechanism includes a winch 6 fixedly installed in the middle of the main crossbeam 3. The winch 6 provides lifting force. A lifting plate 7 is provided above the winch 6. A second rod 5 is provided between the lifting plate 7 and the first slider 4. The second rod 5 is hinged to the first slider 4 and the lifting plate 7 respectively. The hinge axis is along the front-back direction. The lifting plate 7 is connected to the traction rope of the winch 6.

[0036] Working principle: The winch 6 provides downward traction to the lifting plate 7 through the traction rope, which generates opposing forces on the two first sliders 4, thereby driving the side plate 12 and the support plate 18 to move upward, thus achieving lifting. At the same time, the side plate 12 and the support plate 18 are subjected to gravity, which balances the forces on the side plate 12 and the support plate 18 and keeps them stable. In actual use, the height of the support plate 18 can be precisely controlled by controlling the operation of the winch 6, which is simple to operate.

[0037] Additionally, it should be noted that in this embodiment, the winch 6 needs to be electrically connected to a controller (not shown in the figure). The controller can be installed on the support mechanism to facilitate the control of the winch 6's winding traction rope.

[0038] In addition, it should be noted that in this embodiment, the winch 6 is located above the support base 21, with less obstruction around it, which also facilitates the maintenance and upkeep of the winch 6 and its traction rope.

[0039] As attached Figure 1 , Figure 2 As shown, in this embodiment, a support seat 21 is fixedly provided in the middle of the main crossbeam 3, and the winch 6 is fixedly installed on the support seat 21. A limiting mechanism is provided between the lifting plate 7 and the support seat 21 to control the lifting plate 7 to move only in the vertical direction. Specifically, the lifting plate 7 is fixedly connected to a limiting rod 22, and the limiting rod 22 is slidably connected to the support seat 21 in the vertical direction.

[0040] Working principle: By controlling the lifting plate 7 to move only in the vertical direction, the two first sliders 4 can only move towards or away from each other, and cannot move synchronously left and right. After adjusting the height of the support plate 18, the position of the support plate 18 is completely determined, thereby ensuring the stability of the side plate 12 and the support plate 18.

[0041] As attached Figure 1 , Figure 2 As shown, in this embodiment, baffles 20 are hinged to the front and rear sides of the tray 18. When the tray 18 rises, the baffles 20 can block the front and rear sides of the tray 18.

[0042] Working principle: When loading and unloading feed, the baffle 20 is in an open state, and the front and rear sides of the pallet 18 are unobstructed, which facilitates quick loading and unloading of feed. When transporting feed, the pallet 18 and the side plate 12 are raised at the same time, which drives the baffle 20 to shield the pallet 18, thereby preventing the feed from falling due to inertia or coming into contact with sharp objects and causing damage, thus playing a role in protecting the feed.

[0043] Additionally, it should be noted that the baffle 20 in this embodiment can also adopt a hollow structure to reduce the weight of the entire device.

[0044] As attached Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, the side plate 12 is provided with a sliding groove 13 along the front-back direction. Two second sliders 16 are slidably arranged in the sliding groove 13. The baffle 20 is provided with extension plates 19 on the left and right sides. A third rod 17 is provided between the extension plate 19 and the corresponding second slider 16. The third rod 17 is hinged to the extension plate 19 and the second slider 16 respectively. The hinge axis is along the left-right direction. The second slider 16 is hinged with a fourth rod 14. The hinge axis is along the left-right direction. The two corresponding fourth rods 14 are hinged together at the ends away from the second slider 16 to a lifting rod 10. The hinge axis is along the front-back direction.

[0045] Working principle: When loading and unloading feed, the baffle 20 is in the open state, as shown in the attached... Figure 1 , Figure 2 As shown, at this time, the two second sliders 16 on the same side plate 12 are far apart. In this embodiment, the two second sliders 16 are located at both ends of the slide groove 13. The fourth rod 14 is in a horizontal state. When the lifting rod 10 descends, it drives one end of the fourth rod 14 to descend, thereby driving the other end of the fourth rod 14 to move inward, thereby driving the two second sliders 16 to move towards each other, and then driving the third rod 17 and the extension plate 19 to move, causing the baffle 20 to rotate, thereby blocking the pallet 18; when loading and unloading feed, the first rod When no force is applied to the lifting rod 10, the baffle 20 is in an open state due to gravity. When the two first sliders 4 move in opposite directions, causing the side plate 12 and the support plate 18 to rise, the top of the first rod 8 moves outward, thereby pressing the lifting rod 10 downward. This, in turn, drives the corresponding second slider 16 to move through the fourth rod 14, and drives the extension plate 19 and the baffle 20 to move through the third rod 17, thus enabling the baffle 20 to block the front and rear sides of the support plate 18. In actual use, it is only necessary to control the winch 6 to work, which is simple to operate.

[0046] As attached Figure 5 , Figure 6 As shown, in this embodiment, a support plate 11 is fixedly provided on the side plate 12, and a telescopic rod 15 along the vertical direction is provided on the top of the support plate 11. The lifting rod 10 is fixedly provided on the top of the telescopic rod 15, and the movement direction of the lifting rod 10 is limited by the telescopic rod 15.

[0047] In this embodiment, a torsion spring (not shown in the figure) is provided between the baffle 20 and the tray 18. In its natural state, that is, when loading and unloading feed, the baffle 20 is flush with the tray 18 under the action of the torsion spring. When the baffle 20 blocks the tray 18, the baffle 20 is balanced under the action of the torsion spring and the third rod 17.

[0048] As attached Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in this embodiment, the top of the lifting rod 10 is provided with a rotating roller 9. When the first rod 8 moves above the lifting rod 10, the lifting rod 10 is pressed by the rotating roller 9. The rotating roller 9 rotates adaptively to reduce friction, ensure transmission, and protect the first rod 8 and the lifting rod 10. Alternatively, a spherical ball can be used on the top of the lifting rod 10.

[0049] As attached Figure 1 , Figure 2As shown, in this embodiment, the support mechanism includes a support frame 1 and an adjusting rod 2 that slides vertically along the support frame 1. The adjusting rod 2 and the support frame 1 are provided with a matching fixing hole. The adjusting rod 2 is fixedly connected to the main crossbeam 3. By adjusting the relative position of the adjusting rod 2 and the support frame 1, the height of the main crossbeam 3 can be adjusted, thereby adjusting the lifting height, making it flexible to use.

[0050] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0052] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A gantry crane for transporting feed, comprising a main crossbeam (3) and support mechanisms located at the left and right ends of the main crossbeam (3), characterized in that, Two first sliders (4) are slidably provided on the main crossbeam (3) along the left and right direction. A first rod (8) is hinged below the first slider (4). A side plate (12) is hinged to the first rod (8). A support plate (18) is provided between the bottoms of the two side plates (12). The two side plates (12) are located on the left and right sides of the support plate (18). The system also includes a control mechanism to control the movement of the two first sliders (4) towards each other or away from each other. When the distance between the two first sliders (4) changes, the first rod (8), the side plate (12) and the support plate (18) are moved in sequence, thereby changing the height of the support plate (18).

2. A gantry crane for transporting feed according to claim 1, characterized in that, The control mechanism includes a winch (6) fixedly installed in the middle of the main crossbeam (3), a lifting plate (7) is provided above the winch (6), a second rod (5) is provided between the lifting plate (7) and the first slider (4), the second rod (5) is hinged to the first slider (4) and the lifting plate (7) respectively, and the lifting plate (7) is connected to the traction rope of the winch (6).

3. A gantry crane for transporting feed according to claim 2, characterized in that, The main crossbeam (3) is fixedly provided with a support seat (21) in the middle, and the winch (6) is fixedly installed on the support seat (21). The lifting plate (7) is provided with a limiting mechanism between it and the support seat (21) to control the lifting plate (7) to move only in the vertical direction.

4. A gantry crane for transporting feed according to claim 3, characterized in that, The lifting plate (7) is fixedly connected to a limiting rod (22), and the limiting rod (22) is slidably connected to the support base (21) in the vertical direction.

5. A gantry crane for transporting feed according to claim 1, characterized in that, The tray (18) is hinged with baffles (20) on both the front and rear sides. When the tray (18) rises, the baffles (20) can block the front and rear sides of the tray (18).

6. A gantry crane for transporting feed according to claim 5, characterized in that, The side plate (12) is provided with a sliding groove (13) along the front-to-back direction. Two second sliders (16) are slidably arranged in the sliding groove (13). The baffle (20) is provided with extension plates (19) on the left and right sides. A third rod (17) is provided between the extension plate (19) and the corresponding second slider (16). The third rod (17) is hinged to the extension plate (19) and the second slider (16) respectively. The second slider (16) is hinged to a fourth rod (14). The two corresponding fourth rods are... (14) A lifting rod (10) is hinged together. When the two first sliders (4) move in opposite directions, causing the side plate (12) and the support plate (18) to rise, the first rod (8) presses the lifting rod (10) to move downward, and then drives the corresponding second slider (16) to move through the fourth rod (14), and drives the extension plate (19) and the baffle (20) to move through the third rod (17), thereby realizing that the baffle (20) blocks the front and rear sides of the support plate (18).

7. A gantry crane for transporting feed according to claim 6, characterized in that, A support plate (11) is fixedly provided on the side plate (12), and a telescopic rod (15) is provided on the top of the support plate (11) in the vertical direction. The lifting rod (10) is fixedly provided on the top of the telescopic rod (15).

8. A gantry crane for transporting feed according to claim 6, characterized in that, A torsion spring is provided between the baffle (20) and the support plate (18). In its natural state, the baffle (20) is flush with the support plate (18) under the action of the torsion spring.

9. A gantry crane for transporting feed according to claim 7, characterized in that, The top of the lifting rod (10) is provided with a rotating roller (9).

10. A gantry crane for transporting feed according to any one of claims 1-9, characterized in that, The support mechanism includes a support frame (1) and an adjusting rod (2) that slides vertically along the support frame (1). The adjusting rod (2) and the support frame (1) are provided with a matching fixing hole. The adjusting rod (2) is fixedly connected to the main crossbeam (3).

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