Rotatable multi-petal grab bucket

Abstract

The utility model discloses a rotatable multi-petal grab bucket, which relates to the technical field of grab buckets and comprises a support column, the top end of the support column is rotatably connected with a top frame, the top end of the top frame is fixedly connected with a plurality of sleeves, the interiors of the sleeves are slidably connected with extension rods, and the end parts of the extension rods are fixedly connected with mounting plates. A grab bucket body is fixedly connected to the bottom end of the mounting plate, a second motor is fixedly mounted at the outer end of the sleeve, a threaded rod is fixedly connected to the output end of the second motor, the threaded rod is rotatably connected to the interior of the sleeve, a movable block is in threaded connection to the outer side of the threaded rod, and the movable block is fixedly connected to the end, facing the supporting column, of the extension rod; in the working period of the grab bucket body, the second motor works to drive the threaded rod to rotate, the rotating threaded rod drives the movable block to move in the sleeve through the thread, then the extension rod stretches out and draws back along the sleeve, the position of the grab bucket body relative to the top frame is changed, and the working range of the grab bucket body is enlarged.

Description

Technical Field

[0001] This utility model relates to the field of grab bucket technology, specifically a rotatable multi-lobed grab bucket. Background Technology

[0002] The rotatable multi-lobed grab bucket is a device specifically designed for grabbing and transporting large quantities of materials. With its unique design and powerful functionality, the rotatable multi-lobed grab bucket is widely used for handling and loading various materials, such as coal, ore, grain, and fertilizer, due to its high loading capacity and flexible operation. It is particularly suitable for loading and unloading large materials.

[0003] Chinese Patent (Announcement No.: CN221275019U) discloses a rotatable multi-lobed grab bucket, including a base plate, a support column, a circumferential rotation mechanism, a lifting and rotating mechanism, and a grab bucket mechanism. The base plate is movably connected to the support column. The circumferential rotation mechanism is mounted on the support column. The lifting and rotating mechanism is connected to the circumferential rotation mechanism. The grab bucket mechanism is mounted below the circumferential rotation mechanism. The circumferential rotation mechanism includes a first motor, a first rotating shaft, a main gear, an internal gear, and a top frame. The lifting and rotating mechanism includes a first telescopic cylinder, a second motor, a second rotating shaft, and a connecting plate. The grab bucket mechanism includes a mounting block, a second telescopic cylinder, and grab bucket blades. The circumferential rotation mechanism allows the grab bucket to rotate in a horizontal plane, thereby changing the working direction of the grab bucket. This means that the grab bucket can work within a circumferential range. The grab bucket mechanism is multi-lobed, and the opening and closing state of the grab bucket blades can be adjusted as needed, allowing the device to handle various items. However, the position of the grab bucket and the top frame is fixed, which limits the working range of the grab bucket.

[0004] To address the aforementioned issues, we have made improvements by proposing a rotatable multi-lobed grab bucket. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a rotatable multi-lobed grab bucket, including a support column, a top frame rotatably connected to the top of the support column, a plurality of sleeves fixedly connected to the top of the top frame, an extension rod slidably connected inside the sleeve, an installation plate fixedly connected to the end of the extension rod, a grab bucket body fixedly connected to the bottom of the installation plate, a second motor fixedly installed at the outer end of the sleeve, a threaded rod fixedly connected to the output end of the second motor, and the threaded rod rotatably connected inside the sleeve, a movable block threadedly connected to the outer side of the threaded rod, and the movable block fixedly connected to the end of the extension rod facing the support column.

[0007] As a preferred embodiment of this utility model, a groove is provided at the outward end of the sleeve, and a roller is rotatably connected inside the groove, with the top of the roller contacting the top wall of the extension rod.

[0008] As a preferred embodiment of this utility model, a first motor is fixedly installed at the top of the support column, a gear is fixedly connected to the output end of the first motor, a gear ring is meshed with the outer side of the gear, and the gear ring is fixedly connected to the top of the top frame.

[0009] As a preferred embodiment of this utility model, a fixing ring is fixedly connected to the top of the support column, and multiple hinge blocks are hinged to the outer side of the fixing ring, with steel cables fixedly connected to the bottom of the hinge blocks.

[0010] As a preferred embodiment of this utility model, the bottom end of the steel cable is fixedly connected to a ground nail, and the bottom of the ground nail is provided with an upwardly inclined barb.

[0011] As a preferred embodiment of this utility model, the extension rod has a U-shaped cross-section, and lubricating oil is provided between the extension rod and the sleeve.

[0012] The beneficial effects of this utility model are:

[0013] 1. In this utility model, during the operation of the grab bucket body, the second motor drives the threaded rod to rotate. The rotating threaded rod drives the movable block to move inside the sleeve through the thread, thereby causing the extension rod to extend and retract along the sleeve, thereby changing the position of the grab bucket body relative to the top frame and expanding the working range of the grab bucket body.

[0014] 2. In this utility model, the ground nail is embedded in the ground and the steel cable is tightened. By pulling the fixing ring outward, the top position of the support column is fixed, thereby making the support column more stable. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a bottom-view perspective view of this utility model;

[0018] Figure 3 This is a partial sectional view of the present invention;

[0019] In the diagram: 1. Support column; 2. Top frame; 3. Gear ring; 4. First motor; 5. Gear; 6. Sleeve; 7. Extension rod; 8. Mounting plate; 9. Grab body; 10. Fixing ring; 11. Hinge block; 12. Steel cable; 13. Ground stake; 14. Second motor; 15. Threaded rod; 16. Movable block; 17. Groove; 18. Roller. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1 - Figure 3 As shown, a rotatable multi-lobed grab includes a support column 1, a top frame 2 rotatably connected to the top of the support column 1, a plurality of sleeves 6 fixedly connected to the top of the top frame 2, an extension rod 7 slidably connected inside the sleeve 6, a mounting plate 8 fixedly connected to the end of the extension rod 7, a grab body 9 fixedly connected to the bottom of the mounting plate 8, a second motor 14 fixedly mounted on the outer end of the sleeve 6, a threaded rod 15 fixedly connected to the output end of the second motor 14, and the threaded rod 15 rotatably connected inside the sleeve 6, a movable block 16 threadedly connected to the outer side of the threaded rod 15, and the movable block 16 fixedly connected to the end of the extension rod 7 facing the support column 1, the extension rod 7 has a U-shaped cross-section, and lubricating oil is provided between the extension rod 7 and the sleeve 6;

[0022] During the operation of the grab bucket body 9, the second motor 14 drives the threaded rod 15 to rotate. The rotating threaded rod 15 moves within the sleeve 6 through the threaded drive movable block 16, thereby causing the extension rod 7 to extend and retract along the sleeve 6, thus changing the position of the grab bucket body 9 relative to the top frame 2 and expanding the working range of the grab bucket body 9.

[0023] Specifically, such as Figure 3 As shown, a groove 17 is provided at the outward end of the sleeve 6. A roller 18 is rotatably connected inside the groove 17, and the top of the roller 18 contacts the top wall of the extension rod 7. When the extension rod 7 extends outward along the sleeve 6, the roller 18 supports the extension rod 7, improving the bending strength of the extension rod 7. Furthermore, the rolling of the roller 18 replaces part of the friction between the extension rod 7 and the sleeve 6, making the movement of the extension rod 7 smoother and reducing the wear of the extension rod 7 and the sleeve 6.

[0024] Specifically, such as Figure 1As shown, a first motor 4 is fixedly installed at the top of the support column 1. A gear 5 is fixedly connected to the output end of the first motor 4. A gear ring 3 is meshed with the outer side of the gear 5, and the gear ring 3 is fixedly connected to the top of the top frame 2. When the first motor 4 works, it drives the gear 5 to rotate. The rotating gear 5 drives the gear ring 3 to rotate, thereby causing the top frame 2 to rotate at the top of the support column 1. The power part that drives the top frame 2 to rotate is moved to the top of the support column 1, reducing the space occupied by the device.

[0025] Specifically, such as Figure 2 As shown, a fixing ring 10 is fixedly connected to the top of the support column 1. Multiple hinge blocks 11 are hinged to the outside of the fixing ring 10. A steel cable 12 is fixedly connected to the bottom of the hinge block 11. A ground nail 13 is fixedly connected to the bottom of the steel cable 12. The bottom of the ground nail 13 is provided with barbs that are inclined upward. The ground nail 13 is embedded in the ground and tightens the steel cable 12. By pulling the fixing ring 10 outward, the top position of the support column 1 is fixed, thereby making the support column 1 more stable.

[0026] Working principle: The ground nail 13 is embedded in the ground and the steel cable 12 is tightened. By pulling the fixing ring 10 outward, the top position of the support column 1 is fixed, making the support column 1 more stable and fixing the device in the working position.

[0027] The first motor 4 drives the gear 5 to rotate, and the rotating gear 5 drives the gear ring 3 to rotate, thereby causing the top frame 2 to rotate on the top of the support column 1, adjusting the position of the grab bucket body 9. During the operation of the grab bucket body 9, the second motor 14 drives the threaded rod 15 to rotate, and the rotating threaded rod 15 moves within the sleeve 6 through the threaded drive movable block 16, thereby causing the extension rod 7 to extend and retract along the sleeve 6, thereby changing the position of the grab bucket body 9 relative to the top frame 2 and expanding the working range of the grab bucket body 9.

[0028] When the extension rod 7 extends outward along the sleeve 6, it is supported by the roller 18, which improves the bending strength of the extension rod 7. The rolling of the roller 18 replaces part of the friction between the extension rod 7 and the sleeve 6, making the movement of the extension rod 7 smoother and reducing the wear of the extension rod 7 and the sleeve 6.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rotatable multi-lobed grab bucket, comprising a support column (1), characterized in that, The top of the support column (1) is rotatably connected to a top frame (2), and the top of the top frame (2) is fixedly connected to a plurality of sleeves (6). An extension rod (7) is slidably connected inside the sleeve (6), and an installation plate (8) is fixedly connected to the end of the extension rod (7). A grab bucket body (9) is fixedly connected to the bottom end of the installation plate (8). A second motor (14) is fixedly installed at the outer end of the sleeve (6). A threaded rod (15) is fixedly connected to the output end of the second motor (14), and the threaded rod (15) is rotatably connected inside the sleeve (6). A movable block (16) is threadedly connected to the outer side of the threaded rod (15), and the movable block (16) is fixedly connected to the end of the extension rod (7) facing the support column (1).

2. The rotatable multi-lobed grab bucket according to claim 1, characterized in that, The sleeve (6) has a groove (17) at one end facing outwards. A roller (18) is rotatably connected inside the groove (17), and the top of the roller (18) contacts the top wall of the extension rod (7).

3. A rotatable multi-lobed grab bucket according to claim 1, characterized in that, A first motor (4) is fixedly installed at the top of the support column (1). A gear (5) is fixedly connected to the output end of the first motor (4). A gear ring (3) is meshed with the outer side of the gear (5), and the gear ring (3) is fixedly connected to the top of the top frame (2).

4. A rotatable multi-lobed grab bucket according to claim 1, characterized in that, The top of the support column (1) is fixedly connected to a fixing ring (10), and a plurality of hinge blocks (11) are hinged to the outside of the fixing ring (10). A steel cable (12) is fixedly connected to the bottom end of the hinge block (11).

5. A rotatable multi-lobed grab bucket according to claim 4, characterized in that, The bottom end of the steel cable (12) is fixedly connected to a ground nail (13), and the bottom of the ground nail (13) is provided with barbs that are tilted upward.

6. A rotatable multi-lobed grab bucket according to claim 1, characterized in that, The extension rod (7) has a U-shaped cross-section, and lubricating oil is provided between the extension rod (7) and the sleeve (6).

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