Crane grabbing device

Abstract

The utility model discloses a crane gripping device which comprises a base and a pin shaft fixedly arranged at the upper end of the base and used for being connected with a crane mechanical arm, a slewing bearing is fixedly arranged at the lower end of the base, a hinge plate is fixedly arranged at the lower end of the slewing bearing, a hinge column is fixedly arranged at the bottom of the hinge plate, and a motor is fixedly arranged in the base. A driving gear is fixedly arranged at the end, extending to the position below the base, of a driving shaft of the motor, the driving gear is meshed with a gear on the outer side of the slewing bearing, electric push rods are hinged to the four side faces of the hinged plate, clamping arms are hinged to the four side faces of the hinged column, and the piston ends of the electric push rods are hinged to the clamping arms; according to the utility model, the slewing bearing, the motor and the driving gear are designed, so that the grabbing device has a certain self-adjusting capability. The introduction of the structures helps the clamping arm to rotate and adjust the position, so that the flexibility and the accuracy can be improved through fine adjustment of details of the structures after the direction of the crane mechanical arm is adjusted in a large range.

Description

Technical Field

[0001] The utility model relates to the technical field of crane devices, in particular to a crane grabbing device. Background Art

[0002] Cranes are commonly used equipment in the engineering field for transporting, loading and unloading heavy objects. The grabbing mechanism of a crane is an important part of it, usually consisting of a mechanical arm and a grabbing device. Traditional grabbing mechanisms have an obvious drawback, which is the lack of flexibility. These mechanisms completely rely on the crane mechanical arm to adjust the orientation and lack the ability to adjust themselves, which may limit their scope of use and efficiency in some cases. Utility Model Content

[0003] A technical problem

[0004] The utility model provides a crane grabbing device, aiming to overcome the shortcomings of a traditional grabbing mechanism, in particular the problem of lack of flexibility and self-adjusting ability.

[0005] 2. Technical Content

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a crane grabbing device, including a base and a pin fixed at the upper end of the base for connecting the crane mechanical arm, a slewing bearing is fixed at the lower end of the base, a hinge plate is fixed at the lower end of the slewing bearing, a hinge column is fixed at the bottom of the hinge plate, a motor is fixed inside the base, a driving gear is fixed at one end of the motor driving shaft extending below the base, the driving gear is meshed with the gear on the outer side of the slewing bearing, electric push rods are hingedly provided on the four sides of the hinge plate, clamping arms are hingedly provided on the four sides of the hinge column, and the piston end of the electric push rod is hinged to the clamping arm.

[0007] Furthermore, the clamping arm includes an L-shaped curved arm beam and a clamping plate fixed to the bottom of the curved arm beam.

[0008] Furthermore, the inner ring of the slewing bearing is fixedly arranged on the bottom surface of the base, the outer ring is rotatably arranged outside the inner ring, and a gear is fixedly arranged on the outer side surface of the outer ring.

[0009] Furthermore, the four electric push rods operate synchronously.

[0010] Three technical effects

[0011] Compared with the prior art, the utility model has the following advantages: in view of the shortcomings of the traditional grabbing mechanism, the utility model patent proposes an improved solution. By designing the slewing bearing, the motor and the driving gear, the grabbing device has a certain self-adjustment ability. The introduction of these structures helps the clamping arm to rotate and adjust the position, so that after the crane mechanical arm adjusts the position over a large range, the flexibility and accuracy can be improved by fine-tuning the details of the structure. This improvement can make the crane's grabbing mechanism more suitable for various working scenarios, improving operational efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional structure diagram of a crane grabbing device of the utility model. Figure 1 .

[0013] Figure 2 This is a three-dimensional structure diagram of a crane grabbing device of the utility model. Figure 2 .

[0014] Figure 3 The utility model is a schematic diagram of the main structure of a crane grabbing device.

[0015] Figure 4 The utility model is a schematic diagram of the structure of a crane grabbing device viewed from above.

[0016] As shown in the figure: 1. Base; 2. Pin shaft; 3. Slewing bearing; 4. Articulated plate; 5. Articulated column; 6. Driving gear; 7. Electric push rod; 8. Clamp arm; 9. Bending arm beam; 10. Clamp plate. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction structure and operation. Therefore, they should not be understood as limitations on the present invention.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "provided with", "installed", "connected", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Combined with Figure 1 To Attachment Figure 4 A crane grabbing device comprises a base 1 and a pin shaft 2 fixed at the upper end of the base 1 for connecting the crane mechanical arm, a slewing bearing 3 is fixed at the lower end of the base 1, the inner ring of the slewing bearing 3 is fixed to the bottom surface of the base 1, the outer ring is rotatably arranged outside the inner ring, a gear is fixedly arranged on the outer side of the outer ring, a hinge plate 4 is fixedly arranged at the lower end of the outer ring of the slewing bearing 3, a hinge column 5 is fixedly arranged at the bottom of the hinge plate 4, a motor is fixedly arranged inside the base 1, a driving gear 6 is fixedly arranged at one end of the driving shaft of the motor extending below the base 1, the driving gear 6 is meshed with the gear on the outer side of the slewing bearing 3, an electric push rod 7 is hingedly arranged on the four sides of the hinge plate 4, the four electric push rods 7 run synchronously, a clamping arm 8 is hingedly arranged on the four sides of the hinge column 5, the piston end of the electric push rod 7 is hinged to the clamping arm 8, and the clamping arm 8 comprises an L-shaped curved arm beam 9 and a clamping plate 10 fixedly arranged at the bottom of the curved arm beam 9.

[0021] Specific implementation mode of the utility model: Before use, the crane grabbing device is installed on the mechanical arm of the crane, ensuring that the pin shaft 2 is correctly connected to the end of the mechanical arm, the motor and the electric push rod 7 are connected to the power supply of the crane, the mechanical arm of the crane is operated, and the grabbing device is adjusted to the vicinity of the material to be grabbed. For materials that can be grabbed by adjusting the crane mechanical arm itself, the electric push rod 7 is directly started to drive the clamping arm 8 to clamp the material. For materials in a narrow space or materials that cannot be clamped smoothly by simply adjusting the mechanical arm, it is necessary to rely on the adjustment of the grabbing device itself. Specifically, start the motor so that the drive shaft drives the active gear 6 to operate, and the active gear 6 is meshed with the gear on the outside of the slewing bearing 3, so that the slewing bearing 3 can rotate with the rotation of the active gear 6, thereby adjusting the azimuth angle of the clamping arm 8 to facilitate smooth clamping of materials.

[0022] The device drives the rotation of the driving gear 6 through the motor, so that the slewing bearing 3 rotates accordingly, thereby realizing the rotation adjustment function of the grasping device. At the same time, by controlling the movement of the electric push rod 7, the clamping arm 8 can be adjusted to achieve fine adjustment of the grasping position. The combination of the driving gear 6 and the slewing bearing 3, and the coordinated movement of the electric push rod 7 and the clamping arm 8, make the crane grasping device have a certain degree of adaptability and fine adjustment ability, and can flexibly and accurately complete the grasping and placing operations of objects in various working scenarios.

[0023] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A crane grabbing device, comprising a base (1) and a pin (2) fixed to the upper end of the base (1) for connecting to a crane mechanical arm, characterized in that: A slewing bearing (3) is fixedly provided at the lower end of the slewing bearing (3), a hinge plate (4) is fixedly provided at the lower end of the slewing bearing (3), a hinge column (5) is fixedly provided at the bottom of the hinge plate (4), a motor is fixedly provided inside the slewing bearing (1), a driving gear (6) is fixedly provided at one end of the driving shaft of the motor extending below the slewing bearing (1), the driving gear (6) is meshed with a gear on the outer side of the slewing bearing (3), electric push rods (7) are hingedly provided on the four sides of the hinge plate (4), clamping arms (8) are hingedly provided on the four sides of the hinge column (5), and the piston end of the electric push rod (7) is hingedly provided with the clamping arm (8).

2. A crane grabbing device according to claim 1, characterized in that: The clamping arm (8) comprises an L-shaped curved arm beam (9) and a clamping plate (10) fixedly arranged at the bottom of the curved arm beam (9).

3. A crane grabbing device according to claim 1, characterized in that: The inner ring of the slewing bearing (3) is fixedly arranged on the bottom surface of the base (1), the outer ring is rotatably arranged outside the inner ring, and a gear is fixedly arranged on the outer side surface of the outer ring.

4. A crane grabbing device according to claim 1, characterized in that: The four electric push rods (7) operate synchronously.

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