Crane grab bucket convenient to disassemble

Abstract

The utility model discloses a crane grab bucket convenient to disassemble, and relates to the technical field of grab bucket disassembly. A plurality of groups of lug plates are integrally arranged on the edge of the fixed cylinder; an electric push cylinder is fixedly mounted at the inclined upper part in the lug plate through a rotating shaft plate; the electric push cylinder is movably mounted on a first connecting shaft arranged on the arc-shaped arm through a fisheye joint; one end of the arc-shaped arm is movably connected with the lug plate through a rotating shaft; when materials are grabbed, a push rod of an electric push cylinder drives a first connecting shaft to extend downwards, the arc-shaped arms rotate downwards through rotating shafts, and in the downward rotating process of the arc-shaped arms, the corresponding material grabbing plates on the multiple arc-shaped arms gather towards the center, so that a closed material grabbing hopper is formed, and the situation that the materials leak in the material grabbing process is avoided; and through cooperation of bolt holes formed in the material grabbing plate and bolts installed on the arc-shaped arms, the position of the material grabbing plate is adjusted, so that the grabbing operation of different materials is met, and the grabbing quality and efficiency of the materials are guaranteed.

Description

Technical Field

[0001] This utility model specifically relates to the field of grab bucket disassembly technology, and more specifically to a crane grab bucket that is easy to disassemble. Background Technology

[0002] A crane grab bucket is a device used to grab bulk materials. It is usually installed on a crane and is used in ports, docks, mines, construction sites and other places to load various bulk cargoes, logs, minerals, coal, sand and gravel, earth and stone, etc.

[0003] The most common failure in grab bucket operation is abrasive wear. Of the various failure modes, approximately 40% of grab buckets lose performance due to wear on the pins, about 30% due to wear on the bucket body's cutting edges, and about 30% due to wear on pulleys and damage to other components. Therefore, it is essential to regularly inspect all worn parts of the grab bucket, such as pins, bushings, bucket body cutting edges, and pulleys, and replace severely worn parts promptly.

[0004] When traditional crane grabs become damaged after prolonged use, the damaged parts need to be replaced. However, since the two grabs that open and close are typically integrated, replacing one of them requires replacing the entire grab, increasing maintenance costs. Furthermore, disassembly is cumbersome due to the numerous connecting parts, requiring a considerable amount of time and effort, which impacts the grab's operational efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a crane grab bucket that is easy to disassemble. In this structure, multiple grab plates are provided, and each grab plate is fixedly installed to an arc-shaped arm with bolts. In this way, when one of the grab plates or the arc-shaped arm fails, the grab plate on the arc-shaped arm can be disassembled by bolts. This allows for the replacement of the damaged parts in a short time without affecting the working efficiency of the grab bucket. Furthermore, during operation, each arc-shaped plate and grab plate is controlled by a corresponding electric push cylinder, which effectively ensures that if one drive structure fails, it will not affect the normal operation of other drive structures, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A crane grab bucket that is easy to disassemble includes a fixed cylinder; the fixed cylinder has multiple sets of ear plates integrally formed on its edge; an electric push cylinder is fixedly installed inside each set of ear plates at an angled upward via a rotating shaft plate; the electric push cylinder is movably installed on a first connecting shaft provided on an arc-shaped arm via a fish-eye joint; the electric push cylinder drives the first connecting shaft to move via the fish-eye joint, thereby enabling the arc-shaped arm to rotate upward or downward, thus satisfying the effect of picking up or unloading materials;

[0008] One end of the arc-shaped arm is movably connected to the ear plate via a rotating shaft; the end of the arc-shaped arm connected to the rotating shaft is located diagonally below the ear plate; in this way, when the arc-shaped arm drives the material gripping plate to move, there will be no interference caused by the rotating shaft plate, effectively ensuring its working efficiency and quality.

[0009] As a further technical solution of this utility model, multiple bolts are installed on the arc-shaped arm; the arc-shaped arm is detachably installed with the material gripping plate by bolts; when the material gripping plate on the inner side of the arc-shaped arm is damaged during long-term use, the material gripping plate and the arc-shaped plate can be disassembled and separated by bolts and bolt holes on the material gripping plate.

[0010] As a further technical solution of this utility model, the material grabbing plate is provided with two bolt holes; wherein the distance between the two bolt holes is the same as the distance between two adjacent bolts; in this way, the position of the material grabbing plate inside the arc-shaped arm can be realized through the cooperation between the bolts and the bolt holes, thereby effectively meeting the grabbing work of different materials, thus making the working efficiency of the grab bucket higher.

[0011] As a further technical solution of this utility model, the material gripping plate is arranged in an arc shape, wherein the arc of the material gripping plate is the same as the inner arc of the arc arm and is fitted and connected.

[0012] As a further technical solution of this utility model, the electric push cylinder can be angled along the ear plate by rotating the shaft plate; bearings are installed at both ends of the rotating shaft plate, and the side in the middle where the electric push cylinder is installed is set as a plane; when the position of the arc arm is adjusted by the electric push cylinder and the fisheye joint, the electric push cylinder can also adjust the angle by rotating the shaft plate, so as to better adjust the angle of the arc arm.

[0013] As a further technical solution of this utility model, the fixed cylinder has a hollow interior and a hanger integrally provided on its top.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In use, the hanger at the top of the fixed cylinder is installed in conjunction with a crane. The crane enables multiple arc-shaped arms installed on the fixed cylinder to drive the material gripping plate to achieve the effect of gripping and releasing materials.

[0016] 2. In this utility model, during material handling, the push rod of the electric push cylinder drives the first connecting shaft to extend downward, thereby enabling the arc-shaped arm to rotate downward through the rotating shaft. During the downward rotation of the arc-shaped arm, the corresponding gripping plates on multiple arc-shaped arms converge towards the center, thus forming a sealed gripping hopper to prevent material leakage during material handling. The position of the gripping plates can be adjusted by the cooperation between the bolt holes on the gripping plates and the bolts installed on the arc-shaped arms, thereby meeting the gripping operations of different materials and ensuring the quality and efficiency of material handling.

[0017] 3. In this utility model, when one of the arc-shaped arms malfunctions or is damaged during long-term use, the corresponding first connecting shaft and the fisheye joint are disassembled, and the rotating shaft connecting the arc-shaped arm and the ear plate is disassembled to replace the arc-shaped arm. When the grab plate is damaged or malfunctions, the position of the grab plate is first adjusted by the cooperation between the bolt holes and the bolts. If the position adjustment still cannot effectively meet the working needs, the grab plate is separated from the arc-shaped arm by bolts and a new grab plate is replaced. This can effectively reduce the cost of grab bucket maintenance. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This utility model Figure 1 Bottom view of the structure.

[0020] Figure 3 This utility model Figure 1 The main view.

[0021] Figure 4 This utility model Figure 3 AA sectional view.

[0022] Figure 5 This utility model Figure 1 A breakdown diagram.

[0023] Figure 6 This utility model Figure 5 A three-dimensional structural diagram of the mid-arc arm.

[0024] Figure 7 This utility model Figure 1 Enlarged view of the local structure at point B in the middle.

[0025] In the diagram: 1-Grip plate, 2-Arc arm, 3-Bolt, 4-Fixed cylinder, 5-Hanger, 6-Electric pusher cylinder, 7-Ear plate, 8-Fish eye joint, 9-First connecting shaft, 10-Bolt hole, 11-Rotating shaft, 12-Rotating shaft plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-7 In this embodiment of the utility model, a crane grab bucket that is easy to disassemble includes a fixed cylinder 4; the fixed cylinder 4 has multiple sets of ear plates 7 integrally arranged on its edge; an electric push cylinder 6 is fixedly installed inside each set of ear plates 7 at an angled upper part via a rotating shaft plate 12; the electric push cylinder 6 is movably installed with a first connecting shaft 9 provided on the arc-shaped arm 2 via a fisheye joint 8.

[0028] One end of the arc-shaped arm 2 is movably connected to the ear plate 7 via a pivot 11; the end of the arc-shaped arm 2 connected to the pivot 11 is located diagonally below the ear plate 7.

[0029] Multiple bolts 3 are fitted onto the arc-shaped arm 2; the arc-shaped arm 2 is detachably installed to the material gripping plate 1 via the bolts 3.

[0030] By adopting the above technical solution, when in use, the hanger 5 at the top of the fixed cylinder 4 is installed in conjunction with the crane. The crane enables the multiple arc arms 2 installed on the fixed cylinder 4 to drive the material grabbing plate 1 to achieve the effect of grabbing and discharging materials.

[0031] The material gripping plate 1 has two bolt holes 10; wherein the distance between the two bolt holes 10 is the same as the distance between two adjacent bolts 3.

[0032] In this embodiment, the material gripping plate 1 is arranged in an arc shape, wherein the arc of the material gripping plate 1 is the same as the inner arc of the arc arm 2, and they are fitted and connected.

[0033] By adopting the above technical solution, when grabbing materials, the push rod of the electric push cylinder 6 drives the first connecting shaft 9 to extend downward, so that the arc arm 2 rotates downward through the rotating shaft 11. During the downward rotation of the arc arm 2, the corresponding grabbing plates 1 on multiple arc arms 2 converge towards the center, thereby forming a sealed grabbing hopper to prevent material leakage during grabbing. The position of the grabbing plate 1 can be adjusted by the cooperation between the bolt holes 10 on the grabbing plate 1 and the bolts 3 installed on the arc arm 2, so as to meet the grabbing operation of different materials and ensure the grabbing quality and efficiency of materials.

[0034] In this embodiment, the electric push cylinder 6 can be angled along the ear plate 7 by rotating the shaft plate 12; bearings are installed at both ends of the rotating shaft plate 12, and the side in the middle where the electric push cylinder 6 is installed is flat.

[0035] The fixed cylinder 4 has a hollow interior and a hanger 5 integrally formed on its top.

[0036] By adopting the above technical solution, when one of the arc-shaped arms 2 malfunctions or is damaged during long-term use, the corresponding first connecting shaft 9 and fisheye joint 8 are disassembled, and the rotating shaft 11 connecting the arc-shaped arm 2 and the ear plate 7 is disassembled to replace the arc-shaped arm 2. When the grab plate 1 is damaged or malfunctions, the position of the grab plate 1 is first adjusted by the cooperation between the bolt hole 10 and the bolt 3. If the position adjustment still cannot effectively meet the working needs, the grab plate 1 is separated from the arc-shaped arm 2 by the bolt 3 and a new grab plate 1 is replaced. This can effectively reduce the cost of grab bucket maintenance.

[0037] The working principle of this utility model is as follows: When in use, the hanger 5 at the top of the fixed cylinder 4 is installed in conjunction with a crane. The crane enables the multiple arc arms 2 installed on the fixed cylinder 4 to drive the material grabbing plate 1 to achieve the effect of grabbing and discharging materials.

[0038] During material handling, the push rod of the electric push cylinder 6 drives the first connecting shaft 9 to extend downward, so that the arc arm 2 rotates downward through the rotating shaft 11. During the downward rotation of the arc arm 2, the corresponding gripping plates 1 on multiple arc arms 2 converge towards the center, thereby forming a sealed gripping hopper to prevent material leakage during material handling. The position of the gripping plate 1 can be adjusted by the cooperation between the bolt holes 10 on the gripping plate 1 and the bolts 3 installed on the arc arm 2, so as to meet the gripping operation of different materials and ensure the gripping quality and efficiency.

[0039] During prolonged use, when one of the arc-shaped arms 2 malfunctions or is damaged, the corresponding first connecting shaft 9 and fisheye joint 8 are disassembled, and the rotating shaft 11 connecting the arc-shaped arm 2 and the ear plate 7 is disassembled to replace the arc-shaped arm 2. When the grab plate 1 is damaged or malfunctions, the position of the grab plate 1 is first adjusted by the cooperation between the bolt hole 10 and the bolt 3. If the position adjustment still cannot effectively meet the working needs, the grab plate 1 is separated from the arc-shaped arm 2 by the bolt 3 and a new grab plate 1 is replaced. This can effectively reduce the cost of grab bucket maintenance.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A crane grab bucket that is easy to disassemble, characterized in that: Includes a fixed cylinder (4); the fixed cylinder (4) has multiple sets of ear plates (7) integrally arranged on its edge; each set of ear plates (7) has an electric push cylinder (6) fixedly installed on its upper side through a rotating shaft plate (12); the electric push cylinder (6) is movably installed on the first connecting shaft (9) provided on the arc arm (2) through a fish-eye joint (8); One end of the arc-shaped arm (2) is movably connected to the ear plate (7) via a pivot (11); the end of the arc-shaped arm (2) connected to the pivot (11) is located diagonally below the ear plate (7).

2. The crane grab bucket that is easy to disassemble according to claim 1, characterized in that: The arc-shaped arm (2) is fitted with multiple bolts (3); the arc-shaped arm (2) is detachably installed with the material gripping plate (1) via the bolts (3).

3. A crane grab bucket that is easy to disassemble according to claim 2, characterized in that: The material gripping plate (1) has two bolt holes (10); the distance between the two bolt holes (10) is the same as the distance between two adjacent bolts (3).

4. A crane grab bucket that is easy to disassemble according to claim 3, characterized in that: The material gripping plate (1) is arc-shaped, and the arc of the material gripping plate (1) is the same as the inner arc of the arc arm (2) and they are closely connected.

5. A crane grab bucket that is easy to disassemble according to claim 4, characterized in that: The electric push cylinder (6) can be angled along the ear plate (7) by rotating the shaft plate (12); the two ends of the rotating shaft plate (12) are equipped with bearings, and the side in the middle where the electric push cylinder (6) is installed is set as a plane.

6. A crane grab bucket that is easy to disassemble according to claim 4, characterized in that: The fixed cylinder (4) has a hollow interior and a hanger (5) integrally installed on the top.

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