CN220300155U - Hoisting device for large-sized workpiece - Google Patents

Abstract

The utility model relates to the field of lifting technology and discloses a lifting device for large workpieces, which includes a hanger and a material grabbing component slidably connected to the hanger. The grasping arm on the upper body and the driving member that drives the rotation of the grasping arm. The driving member includes a driving cylinder, a rotating arm, a driving rod, a synchronization arm, and a synchronization plate. Several of the grasping arms are fixedly connected to the synchronization plate in parallel. The drive rod is rotatably connected to the grab frame, the drive cylinder is rotatably connected to the grab frame, one end of the rotating arm is rotatably connected to the piston end of the drive cylinder, and the other end is radially fixedly connected to the piston end of the drive cylinder. The driving rod is rotatably connected to the grab frame. One end of the synchronizing arm is radially fixedly connected to the driving rod, and the other end is fixedly connected to the synchronizing plate, which has a stable lifting effect.

Description

A lifting device for large workpieces

Technical field

The utility model relates to the field of lifting technology, in particular to a lifting device for large workpieces.

Background technique

Lifting methods mainly include the following methods: first, rotating lifting method. Usually the rotating lifting method is mainly used in the hoisting construction of steel columns. After the steel column materials are transported to the construction site, one side of the crane lifts the hook, and the other side rotates around the corners of the steel columns to complete the lifting of the steel columns. Work. During the lifting process of steel columns, it is necessary to place skids under the steel columns to effectively protect the steel columns, avoid friction with the ground, and ensure that the lifting points and column foot foundations are at the crane boom during the lifting process. above the arc of gyration; second, the sliding lifting method. When using the sliding lifting method, the lifting equipment needs to be operated at the same time. For example, when lifting steel column materials, two groups of machines need to lift the crane at the same time to complete the hooking operation, promote the sliding of the steel column feet, and then complete the sliding lifting operation. When using this method to hoist steel materials, it is necessary to set up a reasonable taxiway at the construction site to effectively ensure the smooth progress of the taxiing lifting work; third, the delivery lifting method. Usually, when using the delivery lifting method, more than two lifting equipment need to be applied, and the equipment needs to cooperate with each other.

However, for larger workpieces, the lifting part mainly needs to consider the difficulty of lifting large workpieces: whether it can be grasped; the stability of lifting: whether it will slip after being lifted, and large workpieces often have difficulties in lifting and transportation. High risk factors and other issues that need to be solved urgently.

Utility model content

The purpose of this utility model is to provide a lifting device for large workpieces, which has a stable lifting effect.

The above technical purpose of the present utility model is achieved through the following technical solutions: a lifting device for large workpieces, including a hanger and a grabbing component slidably connected to the hanger. The grabbing component includes a grabbing frame, a rotating A grab arm arranged on the grab frame and a driving member that drives the grab arm to rotate. The drive member includes a driving cylinder, a rotating arm, a drive rod, a synchronization arm, and a synchronization plate. Several of the grab arms are fixedly connected in parallel to On the synchronization plate, the driving cylinder is rotationally connected to the grab frame, one end of the rotating arm is rotationally connected to the piston end of the driving cylinder, and the other end is radially fixedly connected to the driving rod. The driving rod is rotatably connected to the grab frame, one end of the synchronizing arm is radially fixedly connected to the driving rod, and the other end is fixedly connected to the synchronizing plate.

The utility model is further configured as follows: the grab arms are arranged in two groups, and the two groups of grab arms are respectively arranged oppositely on the grab frame.

The utility model is further configured as follows: the grab frame is provided with a pressing member, and the pressing member includes a pressing cylinder arranged vertically on the grabbing frame and a pressing plate arranged at the end of the pressing cylinder. , the pressure plate is located between the two sets of grab arms.

The utility model is further provided that: the grabbing arm includes a connecting part and a grabbing part, the connecting part is fixedly connected to the synchronization plate, and the two sets of grabbing parts are arranged oppositely.

The utility model is further configured as follows: the grabbing part is provided with a guide groove, and a pusher is provided in the guide groove.

The utility model is further configured as follows: the pushing member includes a driving motor, a belt, and a pulley, and the three pulleys are rotatably connected to the grabbing part, and the belt is sleeved on the pulley. The drive motor is fixedly connected to one of the pulleys, the drive motor drives the pulley to rotate, and the upper surface of the belt is parallel to the upper surface of the grabbing part.

The beneficial effects of this utility model are:

This utility model can realize the lifting, transfer and loading process of large workpieces. Since large workpieces have problems such as difficulty in lifting and high risk coefficient of transfer, in this utility model, a pressing member is set on the top of the grab arm so that the workpiece can be transported during the transfer process. The pressing down of the pressing piece and the lifting of the grabbing arm can hold the workpiece more stably and avoid the unstable sliding of large workpieces. The utility model also has a pusher on the grabbing arm. When the end of the grabbing arm is at the large When the workpiece is below, the pusher can have a certain upward pushing force, making it easier to lift the workpiece.

The driving cylinder in the utility model drives the rotating arm to rotate. Since the rotating arm and the driving rod are radially fixedly connected, the driving rod is driven to rotate during the rotation of the rotating arm, and the driving rod drives the synchronizing plate through the synchronizing arm. The grab arm on the handle rotates to move the two grab arms closer to and away from each other.

After the large workpiece is grabbed by the pressing member in the utility model, the pressing cylinder will drive the pressure plate to move downward, so that the pressure plate and the large workpiece fit together, so that the pressure plate grab arm can tightly clamp the workpiece, and the stability is improved. high.

The pusher in the utility model can achieve better lifting of the workpiece. When the end of the grab arm is inserted below the workpiece, it is not convenient to lift the workpiece because the workpiece is larger or heavier. Therefore, the gripper on the grab arm The drive motor on the pick-up part will drive the belt to move to the side away from the end of the pick-up part. At this time, the belt will push the large workpiece upward, making it easier for the grab arm to lift the workpiece upwards.

Description of drawings

In order to explain the technical solutions in the embodiments of the present utility model more clearly, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some implementations of the utility model. For example, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of the utility model.

Figure 2 is a schematic structural diagram of the material grabbing assembly of the present utility model.

Figure 3 is a partial structural diagram of the material grabbing assembly of the present utility model.

Figure 4 is a schematic structural diagram of the grab arm of the present utility model.

Figure 5 is a schematic structural diagram of the pusher of the present utility model.

In the figure, 1. Hanger; 2. Gripping component; 3. Gripping frame; 4. Gripping arm; 41. Connecting part; 42. Grappling part; 421. Guide groove; 5. Driving part; 52. Driving cylinder; 53. Rotating arm; 54. Driving rod; 55. Synchronizing arm; 56. Synchronizing plate; 6. Pressing parts; 61. Pressing cylinder; 62. Pressing plate; 7. Pushing parts; 71. Driving motor; 72. Belt ; 73. Pulley.

Detailed ways

The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Embodiment, as shown in Figures 1, 2, and 3, a lifting device for large workpieces includes a hanger 1 and a grabbing component 2 slidably connected to the hanger 1. The grabbing component 2 includes a grabbing component. Frame 3, a grab arm 4 that is rotated on the grab frame 3, and a driving member 5 that drives the grab arm 4 to rotate. The driving member 5 includes a driving cylinder 52, a rotating arm 53, a driving rod 54, and a synchronization arm 55. , synchronization plate 56, a plurality of the grab arms 4 are fixedly connected to the synchronization plate 56 in parallel, the driving cylinder 52 is rotatably connected to the grab frame 3, and one end of the rotating arm 53 is rotatably connected to the driving cylinder. The piston end of 52, the other end is radially fixedly connected to the driving rod 54, the driving rod 54 is rotationally connected to the grab frame 3, one end of the synchronization arm 55 is radially fixedly connected to the driving rod 54 on the synchronization plate 56, and the other end is fixedly connected to the synchronization plate 56.

The driving cylinder 52 in the utility model will drive the rotating arm 53 to rotate. Since the rotating arm 53 and the driving rod 54 are radially fixedly connected, the driving rod 54 will be driven to rotate during the rotation of the rotating arm 53. The driving rod 54 drives the grab arm 4 on the synchronization plate 56 to rotate through the synchronization arm 55, thereby realizing the two grab arms 4 approaching and moving away from each other.

As shown in Figure 2, the utility model is further configured as follows: the grab arms 4 are arranged in two groups, and the two groups of grab arms 4 are respectively arranged oppositely on the grab frame 3.

As shown in Figure 3, the utility model is further provided with a pressing member 6 on the grab frame 3, and the pressing member 6 includes a pressing cylinder 61 vertically arranged on the grab frame 3. A pressure plate 62 is provided at the end of the compression cylinder 61 , and the pressure plate 62 is located between the two sets of grab arms 4 .

After the large workpiece is grabbed by the pressing member 6 in the present invention, the pressing cylinder 61 will drive the pressure plate 62 to move downward, so that the pressure plate 62 fits the large workpiece, so that the pressure plate 62 and the grab arm 4 can tightly hold the workpiece. Clamping for greater stability

As shown in Figure 1, the utility model is further configured as follows: the grab arm 4 includes a connection part 41 and a grab part 42, the connection part 41 is fixedly connected to the synchronization plate 56, and two sets of grab parts 42 relative settings.

As shown in FIG. 4 , the utility model is further provided with a guide groove 421 provided on the grabbing part 42 , and a pusher 7 is provided in the guide groove 421 .

The pusher 7 in the utility model can achieve better lifting of the workpiece. When the end of the grab arm 4 is inserted below the workpiece, it is not convenient to lift because the workpiece is larger or heavier. Therefore, the grab arm 4 The drive motor 71 on the gripping part 42 will drive the belt 72 to move to the side away from the end of the gripping part 42. At this time, the belt 72 will push the large workpiece upward, making it easier to grip the arm 4. Lift the workpiece upward.

As shown in Figures 4 and 5, the utility model is further configured as follows: the pushing member 7 includes a driving motor 71, a belt 72, and a pulley 73, and the three pulleys 73 are rotatably connected to the grabbing portion. 42, the belt 72 is sleeved on the pulley 73, the driving motor 71 is fixedly connected to one of the pulleys 73, the driving motor 71 drives the pulley 73 to rotate, the belt 72 The upper surface is parallel to the upper surface of the grabbing portion 42 .

This utility model can realize the lifting, transfer and loading process of large workpieces. Since large workpieces have problems such as difficulty in lifting and high risk coefficient of transfer, in this utility model, a pressing member 6 is provided on the top of its grab arm 4 so that the workpiece can be transported during the transfer process. , the pressing part 6 is pressed down and the grab arm 4 is lifted up, which can clamp the workpiece more stably and prevent the large workpiece from sliding unstablely. The utility model also provides a pusher 7 on the grab arm 4. When the end of the arm 4 is located below the large workpiece, the pusher 7 can have a certain upward pushing force, so that the workpiece can be lifted more conveniently.

Claims (6)

1. A hoisting accessory of large-scale work piece, its characterized in that: including gallows (1), sliding connection grab material subassembly (2) on gallows (1), grab material subassembly (2) including grab frame (3), rotate and set up grab arm (4), the drive on grab frame (3) grab arm (4) pivoted driving piece (5), driving piece (5) are including actuating cylinder (52), rotor arm (53), actuating lever (54), synchronizing arm (55), synchronizing plate (56), a plurality of grab arm (4) parallel fixed connection is in on synchronizing plate (56), actuating cylinder (52) rotate and connect grab frame (3) are last, rotor arm (53) one end rotate and connect the piston end of actuating cylinder (52), the radial fixed connection of other end is in on actuating lever (54), actuating lever (54) rotate and connect grab frame (3) are last, radial fixed connection of synchronizing arm (55) one end is in on actuating lever (54), the other end is fixed connection is in on synchronizing plate (56).

2. A large workpiece lifting device according to claim 1, characterized in that: the two groups of the grabbing arms (4) are arranged, and the two groups of the grabbing arms (4) are oppositely arranged on the grabbing frame (3) respectively.

3. A large workpiece lifting device according to claim 1, characterized in that: the clamping frame (3) is provided with a pressing piece (6), the pressing piece (6) comprises a pressing cylinder (61) vertically arranged on the clamping frame (3) and a pressing plate (62) arranged at the end part of the pressing cylinder (61), and the pressing plate (62) is positioned between two groups of clamping arms (4).

4. A large workpiece lifting device according to claim 1, characterized in that: the grabbing arm (4) comprises a connecting part (41) and grabbing parts (42), the connecting part (41) is fixedly connected with the synchronous plate (56), and the two grabbing parts (42) are oppositely arranged.

5. The hoisting device for large workpieces as claimed in claim 4, wherein: the grabbing part (42) is provided with a guide groove (421), and a pushing piece (7) is arranged in the guide groove (421).

6. The hoisting device for large workpieces according to claim 5, wherein: the pushing piece (7) comprises a driving motor (71), a belt (72) and belt pulleys (73), the three belt pulleys (73) are rotationally connected to the grabbing portions (42), the belt pulleys (73) are sleeved with the belt pulleys (72), the driving motor (71) is fixedly connected with one belt pulley (73), the driving motor (71) drives the belt pulleys (73) to rotate, and the upper surfaces of the belt pulleys (72) are parallel to the upper surfaces of the grabbing portions (42).