Excavator grab for separating sand and gravel and excavator

Abstract

This utility model relates to the field of construction technology and discloses an excavator gripper and excavator capable of separating sand and gravel. The excavator gripper includes a gripper body and a separating cylinder. The gripper body is provided with a gripping groove, and the side wall of the gripping groove is provided with a slurry passage. The separating cylinder is rotatably disposed within the gripping groove around its own axis and is detachably connected to the gripper body. The extension direction of the separating cylinder is the same as the opening direction of the gripping groove. Slurry and sand can enter the inner cavity of the separating cylinder through the groove opening. The cylinder wall is provided with multiple separation holes, which can communicate with the slurry passage, allowing slurry to exit the inner cavity of the separating cylinder through the separation holes and the slurry passage. This excavator gripper capable of separating sand and gravel can separate slurry from sand and gravel during transportation, helping to shorten the construction cycle and improve overall construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to an excavator gripper and excavator that can separate sand and gravel. Background Technology

[0002] In construction processes such as drilling bridge pile foundations, the drilling mud circulation system plays a crucial role: on the one hand, it suspends and carries away the sand, gravel, and rock cuttings generated during drilling; on the other hand, it forms a dense mud cake on the borehole wall to maintain its stability. However, as construction continues, the cuttings content in the mud accumulates. When it exceeds a certain threshold, the mud's cuttings-carrying capacity and wall-protecting performance will significantly decrease, ultimately leading to construction interruption.

[0003] In current engineering practice, specialized separation equipment is typically used to separate sand and gravel from mud, followed by the use of an excavator grab bucket to transport the processed sand and gravel away from the construction area. This process has significant limitations: the sand and gravel separation operation and the mud transportation operation must be carried out sequentially, creating mutual constraints between the procedures, which not only prolongs the construction cycle but also reduces the overall construction efficiency.

[0004] Therefore, there is an urgent need for an excavator gripper and excavator capable of separating sand and gravel to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an excavator gripper and excavator that can separate sand and gravel, which can separate mud from sand and gravel during the transportation of sand and gravel, thus helping to shorten the construction cycle and improve the overall construction efficiency.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On the one hand, an excavator gripper capable of separating sand and gravel is provided, including:

[0008] The gripper body is provided with a gripping groove, and the side wall of the gripping groove is provided with a slurry passage.

[0009] The separation cylinder is rotatably mounted in the gripping groove around its own axis and is detachably connected to the gripper body. The extension direction of the separation cylinder is the same as the opening direction of the gripping groove. The mud mixed with sand and gravel can enter the inner cavity of the separation cylinder through the groove of the gripping groove. The cylinder wall of the separation cylinder is provided with multiple separation holes, which can communicate with the slurry passage. The mud can leave the inner cavity of the separation cylinder through the separation holes and the slurry passage.

[0010] Optionally, the excavator gripper capable of separating sand and gravel also includes a rotary drive and a transmission assembly. The transmission assembly is rotatably mounted on the gripper body and connected to the separating cylinder. The rotary drive is mounted on the gripper body and connected to the transmission assembly, and is used to drive the transmission assembly to rotate the separating cylinder.

[0011] Optionally, the transmission assembly includes a transmission shaft and several connecting parts. The transmission shaft extends along the extension direction of the separation cylinder and is rotatably disposed in the inner cavity of the separation cylinder. One end of the connecting part is connected to the transmission shaft, and the other end is connected to the inner wall of the separation cylinder. The output end of the rotary drive is connected to the transmission shaft and is used to drive the transmission shaft to drive the separation cylinder to rotate through the connecting parts.

[0012] Optionally, multiple connectors are provided, and the multiple connectors are arranged at intervals along the circumference of the drive shaft.

[0013] Optionally, the connector is provided with multiple connecting holes that extend through its thickness direction.

[0014] Optionally, the connector is a sheet-like structure made of wire mesh.

[0015] Optionally, the separation cylinder includes a cylindrical frame and a mesh. The cylindrical frame is rotatably mounted on the gripper body and detachably connected to the gripper body. The mesh extends circumferentially along the cylindrical frame and is connected to the cylindrical frame. Separation holes are provided in the mesh.

[0016] Optionally, the cylindrical frame includes multiple annular sleeves and multiple connecting rods. The multiple annular sleeves are arranged at intervals along the opening direction of the gripping groove. The annular sleeves are rotatably engaged with the gripper body. The connecting rods extend along the opening direction of the gripping groove. Adjacent annular sleeves are connected by multiple connecting rods.

[0017] Optionally, the diameter of the separation hole is smaller than the width of the sand and gravel.

[0018] On the other hand, an excavator is provided, including a frame, a connecting arm, and the aforementioned excavator gripper capable of separating sand and gravel, wherein the gripper body of the excavator gripper capable of separating sand and gravel is disposed at one end of the connecting arm, and the other end of the connecting arm is connected to the frame.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention provides an excavator gripper and excavator capable of separating sand and gravel. When the gripper body digs mud mixed with sand and gravel, the mud and gravel enter the inner cavity of the separating cylinder through the opening of the gripping groove. During transportation, the separating cylinder is driven to rotate, generating centrifugal force. Under the action of this centrifugal force, the mud separates from the sand and gravel and moves towards the cylinder wall. The mud then exits the inner cavity of the separating cylinder through the separation hole and exits the gripping groove through the slurry outlet, achieving complete separation of mud and gravel. Using the excavator gripper capable of separating sand and gravel provided by this invention can separate mud and gravel during sand and gravel transportation, helping to shorten the construction cycle and improve overall construction efficiency. Furthermore, the separating cylinder is detachably connected to the gripper body. When sand and gravel transportation is not required, the separating cylinder can be removed from the gripper body to avoid affecting the use of the gripper body for other construction processes, ensuring the applicability of the gripper body. Attached Figure Description

[0021] Figure 1 A schematic diagram of the excavator gripper capable of separating sand and gravel provided by this utility model;

[0022] Figure 2 A side view of the separating cylinder of the excavator gripper that can separate sand and gravel provided by this utility model;

[0023] Figure 3 A top view of the separating cylinder of the excavator gripper that can separate sand and gravel, provided by this utility model.

[0024] in:

[0025] 100. Mud storage box;

[0026] 1. Main body of the gripper; 11. Gripping groove; 12. Slurry inlet; 13. Digging claw;

[0027] 2. Separation cylinder; 21. Separation hole;

[0028] 3. Transmission components; 31. Drive shaft; 32. Connecting parts. Detailed Implementation

[0029] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] like Figures 1 to 3 As shown, this embodiment provides an excavator gripper that can separate sand and gravel, which can separate mud from sand and gravel during the transportation of sand and gravel, helping to shorten the construction cycle and improve the overall construction efficiency.

[0034] See Figure 1 , Figure 2 and Figure 3 The excavator gripper capable of separating sand and gravel includes a gripper body 1 and a separating cylinder 2. The gripper body 1 is provided with a gripping groove 11, and the side wall of the gripping groove 11 is provided with a slurry passage 12. The separating cylinder 2 is rotatably disposed within the gripping groove 11 around its own axis and is detachably connected to the gripper body 1. The extending direction of the separating cylinder 2 ( Figure 1 The X direction in the middle is the same as the opening direction of the grabbing groove 11. The mud mixed with sand and gravel can enter the inner cavity of the separation cylinder 2 through the groove of the grabbing groove 11. Multiple separation holes 21 are provided on the cylinder wall of the separation cylinder 2. The separation holes 21 can communicate with the slurry passage 12. The mud can leave the inner cavity of the separation cylinder 2 through the separation holes 21 and the slurry passage 12.

[0035] The excavator gripper with separable sand and gravel provided in this embodiment allows the gripper body 1 to excavate mud mixed with sand and gravel. The mud, along with the sand and gravel, enters the inner cavity of the separation cylinder 2 through the opening of the gripping groove 11. During transport, the separation cylinder 2 is driven to rotate, generating centrifugal force. Under this centrifugal force, the mud separates from the sand and gravel and moves towards the cylinder wall of the separation cylinder 2. The mud then exits the inner cavity of the separation cylinder 2 through the separation hole 21 and exits the gripping groove 11 through the slurry outlet 12, achieving complete separation of mud and sand and gravel. Using the excavator gripper with separable sand and gravel provided in this embodiment can separate mud and sand and gravel during transport, helping to shorten the construction cycle and improve overall construction efficiency. Furthermore, the separation cylinder 2 is detachably connected to the gripper body 1. When transporting sand and gravel is not required, the separation cylinder 2 can be removed from the gripper body 1 to avoid affecting the use of the gripper body 1 for other construction processes, ensuring the applicability of the gripper body 1.

[0036] In this embodiment, see Figure 1 The mud mixed with sand and gravel is stored in the mud storage box 100, and the gripper body 1 grabs the mud from the mud storage box 100.

[0037] For example, the diameter of the separation hole 21 is smaller than the width of the sand and gravel to prevent the sand and gravel from being thrown out of the separation cylinder 2 under the action of centrifugal force.

[0038] In this embodiment, see Figure 1 The main body of the gripper 1 is equipped with a digging claw 13, which is used to dig out mud from the mud storage box 100.

[0039] Optionally, see Figure 1 , Figure 2 and Figure 3 The excavator gripper that can separate sand and gravel also includes a rotary drive (not shown in the figure) and a transmission assembly 3. The transmission assembly 3 is rotatably mounted on the gripper body 1 and connected to the separation cylinder 2. The rotary drive is mounted on the gripper body 1 and connected to the transmission assembly 3, and is used to drive the transmission assembly 3 to rotate the separation cylinder 2 so as to realize the rotation of the separation cylinder 2 around its own axis.

[0040] For example, the rotary drive is a motor.

[0041] In this embodiment, see Figure 1 , Figure 2 and Figure 3 The transmission assembly 3 includes a transmission shaft 31 and several connecting parts 32. The transmission shaft 31 extends along the extension direction of the separation cylinder 2 and is rotatably disposed in the inner cavity of the separation cylinder 2. One end of the connecting part 32 is connected to the transmission shaft 31, and the other end is connected to the inner wall of the separation cylinder 2. The output end of the rotation drive is connected to the transmission shaft 31 and is used to drive the transmission shaft 31 to drive the separation cylinder 2 to rotate through the connecting parts 32.

[0042] In some embodiments, see Figure 1 In the central location, an installation space is provided below the gripping slot 11, and the rotary drive component is installed in the installation space. A through hole is provided on the bottom wall of the gripping slot 11. One end of the drive shaft 31 is detachably connected to the rotary drive component, and the other end passes through the through hole and rotates with the hole wall. Thus, when the separating cylinder 2 is installed on the gripper body 1, the drive shaft 31 can be connected to the rotary drive component.

[0043] For example, the cross-sectional shape of the separator 2 is circular, and the drive shaft 31 is located at the center of the separator 2.

[0044] See Figure 3Multiple connectors 32 are provided, and the multiple connectors 32 are arranged at intervals along the circumference of the drive shaft 31. This arrangement can increase the transmission effect between the drive shaft 31 and the separation cylinder 2, and ensure that the drive shaft 31 can drive the separation cylinder 2 to rotate synchronously when it rotates.

[0045] Specifically, the connector 32 is provided with multiple connecting holes extending along its thickness direction. This arrangement ensures that during the rotation of the separator 2, the slurry mixed with oil and sand must pass through the connecting holes of multiple connectors 32 sequentially, increasing the flow path of the slurry within the separator 2, thus increasing the chance of sand and gravel settling and improving the separation effect.

[0046] For example, the connector 32 is a sheet-like structure made of wire mesh. Wire mesh is a commonly used material on construction sites. This design allows the connector 32 to be made from readily available materials on-site, making the operation convenient and quick, and helping to improve construction efficiency.

[0047] Optionally, the separation cylinder 2 includes a cylindrical frame and a mesh. The cylindrical frame is rotatably mounted on the gripper body 1 and detachably connected to the gripper body 1. The mesh extends circumferentially along the cylindrical frame and is connected to the cylindrical frame. Separation holes 21 are provided on the mesh. The cylindrical frame serves as the supporting skeleton of the separation cylinder 2, ensuring the stability of the mesh when installed on it.

[0048] For example, the mesh is a sheet-like structure made of wire mesh, and the cylindrical frame is made of steel.

[0049] In this embodiment, the cylindrical frame includes multiple annular sleeves and multiple connecting rods. The annular sleeves are spaced apart along the opening direction of the gripping groove 11. The annular sleeves are rotatably engaged with the gripper body 1. The connecting rods extend along the opening direction of the gripping groove 11, and adjacent annular sleeves are connected by multiple connecting rods. The annular sleeves and connecting rods can form a spatial frame structure, which significantly improves the strength of the separation cylinder 2 structure and ensures the overall stability of the separation cylinder 2 during the separation process.

[0050] Specifically, there are two annular sleeves, which are fitted with the gripper body 1 with a clearance so that the annular sleeves can rotate relative to the gripper body 1.

[0051] Example 2

[0052] This embodiment provides an excavator, including a frame, a connecting arm, and an excavator gripper capable of separating sand and gravel as described in Embodiment 1. The gripper body of the excavator gripper capable of separating sand and gravel is disposed at one end of the connecting arm, and the other end of the connecting arm is connected to the frame.

[0053] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. An excavator gripper capable of separating sand and gravel, characterized in that, include: The gripper body (1) is provided with a gripping groove (11), and the side wall of the gripping groove (11) is provided with a slurry outlet (12); The separation cylinder (2) is rotatably disposed in the gripping groove (11) around its own axis and is detachably connected to the gripper body (1). The extension direction of the separation cylinder (2) is the same as the opening direction of the gripping groove (11). The mud mixed with sand and gravel can enter the inner cavity of the separation cylinder (2) through the groove of the gripping groove (11). The cylinder wall of the separation cylinder (2) is provided with a plurality of separation holes (21). The separation holes (21) can communicate with the slurry outlet (12). The mud can leave the inner cavity of the separation cylinder (2) through the separation holes (21) and the slurry outlet (12).

2. The excavator gripper capable of separating sand and gravel according to claim 1, characterized in that, The excavator gripper that can separate sand and gravel also includes a rotary drive and a transmission assembly (3). The transmission assembly (3) is rotatably disposed on the gripper body (1) and connected to the separation cylinder (2). The rotary drive is disposed on the gripper body (1) and connected to the transmission assembly (3) to drive the transmission assembly (3) to rotate the separation cylinder (2).

3. The excavator gripper capable of separating sand and gravel according to claim 2, characterized in that, The transmission assembly (3) includes a transmission shaft (31) and several connecting members (32). The transmission shaft (31) extends along the extension direction of the separation cylinder (2) and is rotatably disposed in the inner cavity of the separation cylinder (2). One end of the connecting member (32) is connected to the transmission shaft (31), and the other end is connected to the inner wall of the separation cylinder (2). The output end of the rotary drive is connected to the transmission shaft (31) and is used to drive the transmission shaft (31) to drive the separation cylinder (2) to rotate through the connecting member (32).

4. The excavator gripper capable of separating sand and gravel according to claim 3, characterized in that, Multiple connectors (32) are provided, and the multiple connectors (32) are arranged at circumferential intervals along the drive shaft (31).

5. The excavator gripper capable of separating sand and gravel according to claim 3, characterized in that, The connector (32) is provided with a plurality of connecting holes that extend through it along its thickness direction.

6. The excavator gripper capable of separating sand and gravel according to claim 5, characterized in that, The connector (32) is a sheet structure made of wire mesh.

7. The excavator gripper capable of separating sand and gravel according to claim 1, characterized in that, The separation cylinder (2) includes a cylindrical frame and a mesh. The cylindrical frame is rotatably disposed on the gripper body (1) and detachably connected to the gripper body (1). The mesh extends circumferentially along the cylindrical frame and is connected to the cylindrical frame. The separation hole (21) is disposed on the mesh.

8. The excavator gripper capable of separating sand and gravel according to claim 7, characterized in that, The cylindrical frame includes multiple annular sleeves and multiple connecting rods. The multiple annular sleeves are arranged at intervals along the opening direction of the gripping groove (11). The annular sleeves are rotatably engaged with the gripper body (1). The connecting rods extend along the opening direction of the gripping groove (11). Adjacent annular sleeves are connected by the multiple connecting rods.

9. The excavator gripper capable of separating sand and gravel according to any one of claims 1-8, characterized in that, The diameter of the separation hole (21) is smaller than the width of the sand and gravel.

10. An excavator, characterized in that, The excavator gripper includes a frame, a connecting arm, and a sand-separating gripper as described in any one of claims 1-9, wherein the gripper body (1) of the sand-separating gripper is disposed at one end of the connecting arm, and the other end of the connecting arm is connected to the frame.

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