Lifting head assembly capable of adjusting direction

Abstract

A lifting head assembly capable of adjusting the direction comprises a lifting head frame, the lifting head frame is in running fit with a bearing cross beam, the bearing cross beam is connected with a connecting plate, the connecting plate is in running fit with a pulley pin shaft, and the pulley pin shaft is in running fit with a pulley. The lifting head frame comprises an upper lifting rod, a lower U-shaped frame and an oil cylinder installation supporting sleeve, the top of the lower U-shaped frame is connected with the upper lifting rod, and the side portion of the lower U-shaped frame is connected with the oil cylinder installation supporting sleeve. Z-axis active angle adjustment is achieved through running fit of the lifting head frame and the bearing cross beam, multi-degree-of-freedom automatic centering is achieved in combination with guide fit of four-edge grooves of the lower U-shaped frame and four-edge bosses of the lifting lugs, and the lifting device adapts to complex working conditions such as inclined gate grooves.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting technology, and specifically relates to an adjustable hoisting head assembly. Background Technology

[0002] Traditional lifting head assemblies cannot actively adjust for angular deviations in the Z-axis direction. In complex working conditions such as high arch dams and inclined portal slots, the lifting head and lifting lugs are difficult to align naturally, requiring repeated manual calibration, which is inefficient and poses high safety risks. Although some components achieve X and Y axis guidance through mechanical guiding structures (such as planar grooves), they lack active Z-axis correction capabilities, resulting in limited alignment accuracy.

[0003] Furthermore, traditional lifting head assemblies lack pre-installed sensor mounting interfaces, making it impossible to monitor the alignment status of the lifting head and lugs and the position of the pins in real time. This hinders intelligent, unmanned operation and poses safety hazards. Existing monitoring methods (such as manual inspection) rely on the experience of on-site personnel, are susceptible to environmental interference, and cannot meet the requirements of high-precision operations. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an adjustable lifting head assembly. The rotational cooperation (gear ring structure) between the lifting head frame and the load-bearing crossbeam realizes the active angle adjustment of the Z-axis. Combined with the guide cooperation of the four-sided groove of the lower U-shaped frame and the four-sided boss of the lifting lug, it realizes multi-degree-of-freedom automatic centering and adapts to complex working conditions such as inclined door slots.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An adjustable lifting head assembly includes a lifting head frame, which is rotatably engaged with a load-bearing crossbeam. The load-bearing crossbeam is connected to a connecting plate, which is rotatably engaged with a pulley pin, and the pulley pin is rotatably engaged with a pulley.

[0007] Preferably, the lifting frame includes an upper lifting rod, a lower U-shaped frame, and a hydraulic cylinder mounting support sleeve. The upper lifting rod is connected to the top of the lower U-shaped frame, and the hydraulic cylinder mounting support sleeve is connected to the side of the lower U-shaped frame.

[0008] Preferably, a hydraulic system mounting support is connected to the side of the lower U-shaped frame, and the hydraulic system mounting support is located on the opposite side of the cylinder mounting support sleeve.

[0009] Preferably, the lower U-shaped frame is provided with multiple mounting holes for positioning sensors.

[0010] Preferably, the lower U-shaped frame is provided with a four-sided groove with the opening of the four-sided groove facing downwards.

[0011] Preferably, the side wall of the cylinder mounting support sleeve is provided with a strip groove, the direction of which is perpendicular to the axis of the upper rod.

[0012] Preferably, the upper end of the upper boom is threaded for engagement with the locking ring.

[0013] Preferably, the load-bearing crossbeam is provided with mounting through holes that mate with the upper hanger rod, and mounting shafts are provided at both ends of the load-bearing crossbeam for connecting to the connecting plate.

[0014] The upper part of the connecting plate has a mounting hole for cooperating with the pulley pin, and the lower part has a mounting hole for mounting with the load-bearing crossbeam.

[0015] The mounting shaft is connected to the limit ring, which is used to limit the movement of the connecting plate.

[0016] Preferably, the load-bearing crossbeam is provided with an active correction device mounting bracket, which is used to install the active correction device.

[0017] Preferably, the active correction device includes a stepper motor, the output shaft of which is connected to the drive gear via a coupling, and the drive gear is mounted on the active correction device mounting bracket via a mounting shaft; the drive gear meshes with the driven gear ring, which is mounted on the load-bearing crossbeam.

[0018] The present invention can achieve the following beneficial effects:

[0019] 1. The rotational engagement (gear ring structure) between the lifting head frame and the load-bearing crossbeam enables active Z-axis angle adjustment. Combined with the guiding engagement of the four-sided groove of the lower U-shaped frame and the four-sided boss of the lifting lug, it achieves multi-degree-of-freedom automatic centering, adapting to complex working conditions such as inclined door slots.

[0020] 2. Set up mounting holes for positioning sensors and travel display slides to support real-time status monitoring, provide data support for automated operation, and achieve visual assistance in conjunction with monitoring cameras. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is an exploded view of the present invention;

[0024] Figure 3 This is an installation effect diagram of the active correction device of this utility model.

[0025] In the diagram: 5. Wire rope; 10. Lifting head frame; 10-1. Upper lifting rod; 10-2. Lower U-shaped frame; 10-3. Hydraulic cylinder mounting support sleeve; 10-4. Hydraulic system mounting support seat; 10-5. Positioning sensor mounting hole; 10-6. Four-sided groove; 10-7. Strip groove; 11. Load-bearing crossbeam; 11-1. Mounting through hole; 11-2. Mounting shaft; 11-3. Active correction device mounting support; 12. Connecting plate; 12-1. Connecting hole; 12-2. Mounting connecting hole; 13. Limiting ring; 14. Locking ring; 15. Pulley pin; 16. Pulley; 20. Stepper motor; 21. Coupling; 22. Driven gear; 23. Driven gear ring. Detailed Implementation

[0026] Preferred solutions include Figures 1 to 3 As shown, an adjustable lifting head assembly includes a lifting head frame 10, which is rotatably engaged with a load-bearing crossbeam 11. The load-bearing crossbeam 11 is connected to a connecting plate 12, which is rotatably engaged with a pulley pin 15, and the pulley pin 15 is rotatably engaged with a pulley 16.

[0027] The lifting frame 10 includes an upper lifting rod 10-1, a lower U-shaped frame 10-2, and a cylinder mounting support sleeve 10-3. The upper lifting rod 10-1 is connected to the top of the lower U-shaped frame 10-2, and the cylinder mounting support sleeve 10-3 is connected to the side of the lower U-shaped frame 10-2.

[0028] The lifting head frame 10 is connected to the crane via a steel wire rope 5. The upper end of the upper lifting rod 10-1 is threaded and can be used with the locking ring 14 to ensure effective connection between the lifting head frame 10 and the load-bearing crossbeam 11. The lower U-shaped frame 10-2 can dock with the lifting lug. Its interior has a four-sided groove 10-6 with stroke positioning sensor mounting holes 10-5 in four directions to detect whether the lifting lug and the lifting head frame 10 are effectively aligned, preparing for subsequent pin insertion work and ensuring effective connection between the crane and the lifting lug. The main body is equipped with a hydraulic system mounting support seat 10-4 for the pin insertion and withdrawal device and a cylinder mounting support sleeve 10-3 on the left and right sides respectively. The cylinder mounting support sleeve 10-3 has a stroke display device 36-1 strip groove at the front and rear. All components of the lifting head device are installed on the lifting head frame 10 to ensure safe use of the lifting head device.

[0029] The load-bearing crossbeam 11 is in the form of a column structure. It is mainly used to connect and support the lifting head frame 10 to ensure the safety of the lifting head. It has an installation through hole 11-1 in the middle to cooperate with the upper lifting rod 10-1. It has an active correction device mounting support 11-3 at the bottom of the outer side and mounting shafts 11-2 on both sides to be installed with the connecting plate 12.

[0030] The connecting plate 12 has a sheet-like structure. The upper part has a connecting hole 12-2 for mounting with the pulley pin 15, and the lower part has a connecting hole 12-1 for mounting with the load-bearing crossbeam 11.

[0031] The limiting retaining ring 13 is installed on the outside of the mounting shaft 11-2 of the load-bearing crossbeam 11 to restrict the movement of the connecting plate 12.

[0032] The locking ring 14 is installed on the upper lifting rod 10-2 of the lifting head frame 10 by means of threads, which can effectively connect the load-bearing crossbeam 11 to the lifting head frame 10 and ensure the safe use of the bucket frame 10;

[0033] The pulley pin 15 is installed on the mounting connection hole 12-2 of the left and right connecting plates 12, and multiple pulleys 16 are installed between the connecting plates for installing the wire rope 5;

[0034] Pulley 16, mounted on pulley pin 15, is used to wind the crane wire rope 5.

[0035] In addition, this device also includes an active correction device, which includes:

[0036] The stepper motor 20 is fixedly installed on the load-bearing crossbeam 11. It is a device that converts electrical energy into mechanical energy. The rotating output shaft is connected to the drive gear through the coupling 21, providing the main power for the device to actively correct and adjust.

[0037] The coupling 21 transmits power from the motor to the driven drive gear 21, and can absorb vibration and impact loads to protect the equipment.

[0038] The drive gear 22 is mounted on the active correction device mounting bracket 11-3 of the load-bearing crossbeam 11 via a mounting shaft and is driven by a stepper motor.

[0039] Driven gear ring 23 is installed on the upper lifting rod 10-1 of the lifting head frame 10 and meshes with the driving gear 22 to realize the rotation of the lifting head in the Z-axis direction.

[0040] Furthermore, the lower U-shaped frame 10-2 is provided with multiple positioning sensor mounting holes 10-5. The lower U-shaped frame 10-2 is provided with a four-sided groove 10-6, with the opening of the four-sided groove 10-6 facing downwards. There are four sensor mounting holes 10-5, which are evenly distributed around the axis of the upper lifting rod 10-1. The sensor mounting holes 10-5 are connected to the four-sided groove 10-6. The sensor mounting holes 10-5 are used to install position sensors, which can detect whether the lifting lug and the lifting head frame are effectively aligned, preparing for the subsequent pin insertion work and ensuring the effective connection between the crane and the lifting lug. The main body is provided with a hydraulic system mounting support seat for the pin insertion and retraction device and a cylinder mounting support sleeve on the left and right sides respectively. The cylinder mounting support sleeve has strip grooves for stroke display devices at the front and rear. All components of the lifting head device are installed on the lifting head frame to ensure the safe use of the lifting head device.

[0041] Furthermore, the upper end of the upper boom 10-1 is threaded for engaging with the locking ring 14.

[0042] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. An adjustable-position lifting head assembly, characterized in that: It includes a lifting head frame (10), which is rotatably connected to a load-bearing crossbeam (11), the load-bearing crossbeam (11) is connected to a connecting plate (12), the connecting plate (12) is rotatably connected to a pulley pin (15), and the pulley pin (15) is rotatably connected to a pulley (16). The lifting frame (10) includes an upper lifting rod (10-1), a lower U-shaped frame (10-2), and a cylinder mounting support sleeve (10-3). The upper lifting rod (10-1) is connected to the top of the lower U-shaped frame (10-2), and the cylinder mounting support sleeve (10-3) is connected to the side of the lower U-shaped frame (10-2). An active correction device mounting bracket (11-3) is provided on the load-bearing crossbeam (11). The active correction device mounting bracket (11-3) is used to install the active correction device. The active correction device includes a stepper motor (20), the output shaft of which is connected to the drive gear (22) via a coupling (21), and the drive gear (22) is mounted on the active correction device mounting bracket (11-3) via a mounting shaft; the drive gear (22) meshes with the driven gear ring (23), and the driven gear ring (23) is mounted on the load-bearing crossbeam (11).

2. The adjustable-position lifting head assembly according to claim 1, characterized in that: The lower U-shaped frame (10-2) is connected to a hydraulic system mounting support (10-4) on the side, and the hydraulic system mounting support (10-4) is located on the opposite side of the cylinder mounting support sleeve (10-3).

3. The adjustable-position lifting head assembly according to claim 1, characterized in that: The lower U-shaped frame (10-2) is provided with multiple mounting holes (10-5) for positioning sensors.

4. The adjustable-position lifting head assembly according to claim 1, characterized in that: The lower U-shaped frame (10-2) is provided with a four-sided groove (10-6), and the opening of the four-sided groove (10-6) faces downward.

5. The adjustable-position lifting head assembly according to claim 1, characterized in that: The cylinder mounting support sleeve (10-3) has a strip groove (10-7) on its side wall, and the direction of the strip groove (10-7) is perpendicular to the axis of the upper rod (10-1).

6. The adjustable-position lifting head assembly according to claim 1, characterized in that: The upper end of the upper rod (10-1) is threaded for engaging with the locking ring (14).

7. The adjustable-position lifting head assembly according to claim 1, characterized in that: The load-bearing crossbeam (11) is provided with a mounting through hole (11-1) that mates with the upper hanger (10-1). The load-bearing crossbeam (11) is provided with mounting shafts (11-2) at both ends. The mounting shafts (11-2) are used to connect with the connecting plate (12). The upper part of the connecting plate (12) is provided with an installation connection hole (12-2) that mates with the pulley pin (15), and the lower part is provided with a connection hole (12-1) that is installed with the load-bearing crossbeam (11). The mounting shaft (11-2) is connected to the limiting ring (13), which is used to limit the movement of the connecting plate (12).

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