Rotary quick hitch spreader

Abstract

The utility model relates to a kind of rotary quick-connection lifting appliance in hoisting equipment field, including pulley shaft, crossbeam and connecting frame, and the inverted Y-shaped lifting fork consisting of upper shaft section and two lower fork plates, the both ends of crossbeam are fixed to pulley shaft by lifting plate hoisting, pulley shaft rotation installation has movable pulley;Connecting frame is fixedly connected to crossbeam, upper shaft section upper end rotation installation is in the central part of connecting frame, upper shaft section lower end is fixed with driven gear, one end of connecting frame is installed with rotating motor, the output shaft of rotating motor is fixed with the driving gear meshed with driven gear;Two lower fork plates are provided with two corresponding connecting holes, one of which is fixed with sleeve, connecting shaft is inserted in the gap of sleeve, and driving unit for driving the axial movement of connecting shaft is installed on the outer wall of sleeve;The rotary quick-connection lifting appliance not only can quickly complete the butt joint with different object taking device, but also can be placed accurately by rotating a certain angle according to working condition requirement.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment, and in particular to a rotary quick-connect lifting device. Background Technology

[0002] On automated production lines, when cranes handle different types of materials, a single lifting device is often insufficient to meet the lifting requirements. Multiple lifting devices are needed to complete the handling of different materials. Under normal circumstances, different lifting devices need to be manually changed for lifting. When materials need to be rotated at a certain angle, they are rotated manually, and the placement angle is difficult to control accurately. This results in slow work efficiency, the placement process cannot be automated, and there are certain safety hazards. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology and solve the existing technical problems, this utility model discloses a rotating quick-connect lifting tool, which can not only quickly connect with different lifting devices, but also accurately rotate to a certain angle for placement according to working conditions.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A rotary quick-connect lifting device includes a pulley shaft, a crossbeam, and a connecting frame, as well as an inverted Y-shaped lifting fork composed of an upper shaft section and two lower fork plates. Both ends of the crossbeam are fixed to the pulley shaft shaft via lifting plates, and movable pulleys are rotatably mounted at both ends of the pulley shaft. The connecting frame is fixedly connected to the lower surface of the crossbeam. The upper end of the upper shaft section is rotatably mounted in the center of the connecting frame, and a driven gear is coaxially fixed to the lower end of the upper shaft section. A rotary motor is mounted at one end of the connecting frame, and a driving gear meshing with the driven gear is coaxially fixed to the output shaft of the rotary motor. The two lower fork plates have two corresponding connecting holes on their surfaces. A sleeve coaxially corresponding to the connecting hole is fixed to the outer surface of one of the lower fork plates. A connecting shaft is inserted into the sleeve with a gap, and a drive unit for driving the connecting shaft to move axially is installed on the outer wall of the sleeve, allowing the connecting shaft to extend from the sleeve and pass through the two connecting holes.

[0005] Furthermore, both the crossbeam and the connecting frame have a through hole in the center to accommodate the rotation of the upper shaft section. The upper end wall of the upper shaft section has an external thread and is equipped with a lifting nut. The shaft body of the upper shaft section located between the lifting nut and the crossbeam is fitted with a thrust bearing. The upper shaft section and the corresponding through hole of the connecting frame are rotatably connected by a radial bearing.

[0006] Furthermore, an angle encoder is connected to the upper end face of the upper shaft section, and the housing wall of the angle encoder is fixed to the crossbeam by a bracket.

[0007] Furthermore, the rotating motor is configured as a three-in-one geared motor, and a first counterweight is fixed at the other end of the connecting frame away from the rotating motor.

[0008] Furthermore, a limit stop bar is fixed to the outer edge of the lower end face of the driven gear, and a first limit switch capable of correspondingly abutting the limit stop bar is connected to the outer edge of the lower surface of the connecting frame via a hanger rod.

[0009] Furthermore, the drive unit is configured as a drive motor, a bearing seat is fixedly installed on the outer end of the sleeve, a transmission screw is rotatably inserted in the bearing seat, a driven sprocket is coaxially fixed on the outer end of the transmission screw, and a drive sprocket connected to the driven sprocket via chain drive is coaxially fixed on the output shaft of the drive motor; the end face of the connecting shaft is provided with an internal threaded hole that is threaded to the transmission screw, the lower wall of the sleeve is provided with an elongated hole along the axial direction of the sleeve, and a limiting block is fixedly inserted into the elongated hole on the lower shaft body of the connecting shaft.

[0010] Furthermore, the sleeve is provided with a second limit switch at both ends corresponding to the elongated hole for abutting the limit block.

[0011] Furthermore, a second counterweight is fixed to the outer surface of the lower fork plate, which is away from the sleeve.

[0012] By adopting the technical solution described above, this utility model has the following beneficial effects: The rotary quick-connect lifting device disclosed in this utility model can control the extension and retraction of the connecting shaft by a drive unit to open and close the lower end of the inverted Y-shaped lifting fork, thereby automatically connecting different types of lifting devices and achieving rapid docking. Furthermore, by using gear transmission to control the rotation of the rotatably mounted inverted Y-shaped lifting fork, it not only facilitates accurate docking but also makes it easy to handle and adjust materials as needed. In addition, this utility model uses a wire rope wound around a movable pulley in an external lifting mechanism to ultimately achieve the lifting operation of the lifting device, which greatly improves work efficiency and reduces safety risks. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an embodiment of the present utility model; Figure 2 yes Figure 1 Schematic diagram of the side view partial section structure; Figure 3 This is a schematic diagram of the assembly structure of the connecting shaft.

[0014] In the diagram: 1. Movable pulley; 2. Pulley shaft; 3. Angle encoder; 4. Lifting nut; 5. Thrust bearing; 6. Bracket; 7. Lifting plate; 8. Crossbeam; 9. First counterweight; 10. Connecting frame; 11. Driven gear; 12. First limit switch; 13. Limit stop bar; 14. Inverted Y-shaped lifting fork; 15. Second counterweight; 16. Sleeve; 17. Connecting shaft; 18. Bearing seat; 19. Driven sprocket; 20. Chain; 21. Driving sprocket; 22. Drive unit; 23. Driving gear; 24. Rotating motor; 25. Limit block; 26. Second limit switch. Detailed Implementation

[0015] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation.

[0016] Combined with appendix Figure 1-3 The aforementioned rotary quick-connect lifting device includes a pulley shaft 2, a crossbeam 8, and a connecting frame 10, as well as an inverted Y-shaped lifting fork 14 composed of an upper shaft section and two lower fork plates. Both ends of the crossbeam 8 are suspended and fixed to the shaft body of the pulley shaft 2 by lifting plates 7. The two lifting plates 7 are symmetrically arranged to ensure balance. Both ends of the pulley shaft 2 are rotatably installed with movable pulleys 1. Multiple movable pulleys 1 are set according to the winding condition of the wire rope of the external lifting mechanism. The connecting frame 10 is fixedly connected to the lower surface of the crossbeam 8. To avoid interference, the connecting frame 10 and the crossbeam 8 are connected in a cross shape, as shown in the attached figure. Figure 1 and 2As shown, the two ends are offset from each other; the upper end of the upper shaft section is rotatably mounted in the center of the connecting frame 10, and the upper shaft section remains vertical, which facilitates the horizontal rotation of the entire inverted Y-shaped lifting fork 14; as needed, the center of both the crossbeam 8 and the connecting frame 10 is provided with through holes adapted for the rotation of the upper shaft section; the upper end wall of the upper shaft section is provided with external threads and equipped with a lifting nut 4 for easy screwing and installation; the shaft body of the upper shaft section located between the lifting nut 4 and the crossbeam 8 is fitted with a thrust bearing 5; the upper shaft section and the corresponding through holes of the connecting frame 10 are rotatably connected by radial bearings, and the thrust bearing 5 and the radial bearings ensure the rotation of the inverted Y-shaped lifting fork 14. While offering flexibility, it also ensures a stable installation between the inverted Y-shaped lifting fork 14, the connecting frame 10, and the crossbeam 8, providing a large lifting load capacity. Furthermore, an angle encoder 3 is connected to the upper end face of the upper shaft section. The housing of the angle encoder 3 is fixed to the crossbeam 8 via a bracket 6. The angle encoder 3 measures the rotation angle of the inverted Y-shaped lifting fork 14, facilitating feedback monitoring and adjustment. A driven gear 11 is coaxially fixed to the lower end of the upper shaft section. A rotary motor 24 is installed at one end of the connecting frame 10. The output shaft of the rotary motor 24 is coaxially fixed with a driving gear 23 that meshes with the driven gear 11, as shown in the attached diagram. Figure 2 As shown, the connecting frame 10 can be configured as a box-like structure with internal space. The output shaft of the rotating motor 24 rotates downward through the upper wall of the box-like structure and is connected to the axle of the driving gear 23 via a coupling inside the box-like structure. Specifically, if the rotating motor 24 is configured as a three-in-one geared motor, a first counterweight 9 is fixed at the other end of the connecting frame 10 away from the rotating motor 24 to maintain the balance of the two ends. If the rotating motor 24 is a dual-geared motor, then the first counterweight 9 is replaced by a reducer. As needed, a limit stop bar 13 is fixed to the outer edge of the lower end face of the driven gear 11. The outer edge of the lower surface of the connecting frame 10 is connected to a first limit switch 12 that can correspondingly abut against the limit stop bar 13 via a hanging rod. When the limit stop bar 13 touches the first limit switch 12, the rotating motor 24 stops operating to prevent excessive rotation adjustment.

[0017] Two lower fork plates are arranged parallel to each other and have two corresponding connecting holes. A sleeve 16, coaxial with the connecting hole, is fixed to the outer surface of one of the lower fork plates. The inner diameter of the sleeve 16 is slightly larger than the diameter of the connecting hole. A connecting shaft 17 is inserted into the sleeve 16 with a gap. A drive unit 22 for driving the axial movement of the connecting shaft 17 is installed on the outer wall of the sleeve 16, allowing the connecting shaft 17 to extend from the sleeve 16 and pass through the two connecting holes. This enables the opening and closing of the two lower fork plates, and allows the lifting rings, lugs, or hooks of the lifting device to be hung on the extended connecting shaft 17 for quick connection. A second counterweight is fixed to the outer surface of the lower fork plate away from the sleeve 16. Block 15 is used to maintain balance, and the second counterweight block 15 can also block the outer end of the corresponding connecting hole to prevent the connecting shaft 17 from being over-inserted; as needed, the drive unit 22 is set as a drive motor, the outer port of the sleeve 16 is fixedly installed with a bearing seat 18, a transmission screw is rotatably inserted in the bearing seat 18, the outer end of the transmission screw is coaxially fixed with a driven sprocket 19, the output shaft of the drive motor is coaxially fixed with a driving sprocket 21 that is connected to the driven sprocket 19 through a chain 20, and the forward and reverse rotation of the drive motor controls the rotation of the driving sprocket 21 and the driven sprocket 19, thereby controlling the forward and reverse rotation of the transmission screw; the end face of the connecting shaft 17 is provided with an internal threaded hole that is threaded to the transmission screw, as shown in the attached figure. Figure 3 As shown, the outer half of the transmission screw can be set as a smooth shaft, requiring most of the outer wall of the inner half of the transmission screw to be provided with external threads. The internal threaded hole of the connecting shaft 17 only needs to be provided with a section of thread at the outer end. The lower cylinder wall of the sleeve 16 is provided with an elongated hole along the axial direction of the sleeve 16. The lower shaft of the connecting shaft 17 is fixed with a limiting block 25 that is movably inserted into the elongated hole. In this way, when the transmission screw rotates, the connecting shaft 17 can overcome the rotational force and move axially. In addition, the sleeve 16 is provided with second limit switches 26 at both ends corresponding to the elongated hole for abutting the limiting block 25. The two second limit switches 26 correspond to the two states of the connecting shaft 17 being extended and retracted, respectively, so that when the limiting block 25 touches the corresponding second limit switch 26, feedback control can be provided to stop the drive motor.

[0018] The rotary quick-connect lifting device described in this utility model involves winding the wire rope of the external lifting mechanism around the movable pulley 1 to achieve lifting and lowering operations. When it is necessary to connect a lifting device, such as a clamp or suction cup, first control the inverted Y-shaped lifting fork 14 to rotate into position, then lower the lifting device so that the two lower fork plates of the inverted Y-shaped lifting fork 14 are located between the hooking components of the lifting device. Then control the connecting shaft 17 to extend so that the hooking components of the lifting device can hook the object. Finally, control the lifting device to rise together with the lifting device for subsequent material handling.

[0019] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.

Claims

1. A rotary quick-connect lifting tool, characterized in that: The system includes a pulley shaft (2), a crossbeam (8), and a connecting frame (10), as well as an inverted Y-shaped lifting fork (14) composed of an upper shaft section and two lower fork plates. Both ends of the crossbeam (8) are suspended and fixed to the shaft body of the pulley shaft (2) by lifting plates (7). Both ends of the pulley shaft (2) are rotatably mounted with movable pulleys (1). The connecting frame (10) is fixedly connected to the lower surface of the crossbeam (8). The upper end of the upper shaft section is rotatably mounted in the center of the connecting frame (10). The lower end of the upper shaft section is coaxially fixed with a driven gear (11). A rotating motor is installed at one end of the connecting frame (10). (24) The output shaft of the rotating motor (24) is coaxially fixed with a drive gear (23) that meshes with the driven gear (11); the two lower fork plates are provided with two corresponding connecting holes, one of which is fixed with a sleeve (16) coaxially corresponding to the connecting hole on the outer plate surface of the lower fork plate. A connecting shaft (17) is inserted into the sleeve (16) with a gap. A drive unit (22) for driving the connecting shaft (17) to move axially is installed on the outer wall of the sleeve (16) so that the connecting shaft (17) can extend out of the sleeve (16) and pass through the two connecting holes.

2. The rotary quick-connect lifting device according to claim 1, characterized in that: The crossbeam (8) and the connecting frame (10) are both provided with through holes in the center to accommodate the rotation of the upper shaft section. The upper end wall of the upper shaft section is provided with external threads and equipped with a lifting nut (4). The shaft body of the upper shaft section located between the lifting nut (4) and the crossbeam (8) is fitted with a thrust bearing (5). The upper shaft section and the corresponding through holes of the connecting frame (10) are rotatably connected by radial bearings.

3. The rotary quick-connect lifting device according to claim 2, characterized in that: An angle encoder (3) is connected to the upper end face of the upper shaft section, and the housing wall of the angle encoder (3) is fixed to the crossbeam (8) by a bracket (6).

4. The rotary quick-connect lifting device according to claim 1, characterized in that: The rotating motor (24) is a three-in-one reduction motor, and the other end of the connecting frame (10) away from the rotating motor (24) is fixed with a first counterweight (9).

5. The rotary quick-connect lifting device according to claim 1, characterized in that: A limit stop bar (13) is fixed on the outer edge of the lower end face of the driven gear (11), and a first limit switch (12) that can correspond to and abut against the limit stop bar (13) is connected to the outer edge of the lower surface of the connecting frame (10) via a hanger.

6. The rotary quick-connect lifting device according to claim 1, characterized in that: The drive unit (22) is a drive motor. The outer port of the sleeve (16) is fixedly installed with a bearing seat (18). A transmission screw is rotatably inserted in the bearing seat (18). A driven sprocket (19) is coaxially fixed at the outer end of the transmission screw. The output shaft of the drive motor is coaxially fixed with a drive sprocket (21) that is connected to the driven sprocket (19) via a chain (20). The end face of the connecting shaft (17) is provided with an internal threaded hole that is threaded to the transmission screw. The lower wall of the sleeve (16) is provided with an elongated hole along the axial direction of the sleeve (16). A limiting block (25) is fixedly inserted into the elongated hole at the lower shaft of the connecting shaft (17).

7. The rotary quick-connect lifting device according to claim 6, characterized in that: The sleeve (16) is provided with a second limit switch (26) at both ends of the elongated hole for abutting the limit block (25).

8. The rotary quick-connect lifting device according to claim 6, characterized in that: A second counterweight (15) is fixed to the outer surface of the lower fork plate away from the sleeve (16).

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