Hydraulically driven winch drum

Abstract

The utility model discloses a hydraulic drive winch drum belongs to winch technical field, including base subassembly, still include drum subassembly, hydraulic drive subassembly, drum subassembly includes cylinder, spoke, hydraulic drive subassembly includes hydraulic pump, reduction gear set, drum gear coupling, a plurality of hydraulic motor, cylinder is installed on base subassembly, is used for winding steel wire rope, and spoke is arranged in the both sides of cylinder and is fixedly connected with cylinder radially and radiates, and hydraulic pump is connected with a plurality of hydraulic motor respectively through pipeline, forms hydraulic circuit, and reduction gear set is installed on base subassembly, and is equipped with a plurality of input shaft, an output shaft, and every input shaft is connected with the output end of a hydraulic motor, and drum gear coupling is installed on the output shaft, and the output shaft is connected with cylinder through drum gear coupling. The application can significantly improve total output torque, adapt to heavy load working condition, avoid the problem of insufficient power of single motor, adjust driving force flexibly, and adapt to different load scene.

Description

Technical Field

[0001] This utility model relates to the field of winch technology, and in particular to a hydraulically driven winch drum. Background Technology

[0002] The winch drum is a core component of equipment such as cranes and winches, used to wind and release wire ropes to lift or pull heavy objects.

[0003] Traditional winch drums are mostly driven by a single motor or a single hydraulic motor, transmitting torque to the drum through a reducer. This single-point drive has limited output torque, making it difficult to meet the high torque requirements of heavy equipment. Moreover, traditional couplings (such as rigid couplings) have poor compensation capabilities for installation deviations, and long-term operation is prone to additional wear due to shaft misalignment, shortening the service life of the reduction mechanism and the drum. In addition, the transmission structure has limited adaptability, making it difficult to flexibly adjust the driving force according to different load requirements, thus limiting the applicable scenarios. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a hydraulically driven winch drum. By synchronously driving a reduction gear set with multiple hydraulic motors, the total output torque can be significantly improved, making it suitable for heavy load conditions and avoiding the problem of insufficient power from a single motor. At the same time, the symmetrical distribution of multiple motors reduces transmission vibration caused by uneven power input. The reduction gear set integrates a multi-input shaft design, eliminating the need for additional transmission components and resulting in a compact overall structure. The driving force can be flexibly adjusted by increasing or decreasing the number of hydraulic motors (to match the number of input shafts of the reduction gear set), adapting to different load scenarios.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A hydraulically driven winch drum includes a base assembly, a drum assembly, and a hydraulic drive assembly. The drum assembly includes a cylinder and spokes. The hydraulic drive assembly includes a hydraulic pump, a reduction gear set, a drum gear coupling, and multiple hydraulic motors. The cylinder is mounted on the base assembly and is used to wind a steel wire rope. The spokes are arranged radially on both sides of the cylinder and are fixedly connected to the cylinder. The hydraulic pump is connected to the multiple hydraulic motors through pipes to form a hydraulic circuit. The reduction gear set is mounted on the base assembly and has multiple input shafts and one output shaft. Each input shaft is connected to the output end of one of the hydraulic motors. The drum gear coupling is mounted on the output shaft, and the output shaft is connected to the cylinder through the drum gear coupling.

[0007] Furthermore, the base assembly includes a base, a support frame, and a bearing seat. The support frame is mounted on the base, the bearing seat is mounted on the support frame, and the cylinder is supported on the bearing seat by a main shaft.

[0008] Furthermore, the hydraulically driven winch drum also includes a braking assembly, which includes an actuator, a brake disc, and a transmission component. The brake disc is coaxially and fixedly connected to the drum body, and the actuator is fixed to the base assembly. The output end of the actuator engages with the brake disc through the transmission component to apply braking force to the brake disc.

[0009] Furthermore, the actuator is a hydraulic cylinder, and the braking assembly includes a lug, a spherical bearing, and a brake rod. The cylinder body of the hydraulic cylinder is fixedly connected to the support frame through the lug, and the piston rod of the hydraulic cylinder is hinged to one end of the brake rod through the spherical bearing. The other end of the brake rod acts on the brake disc.

[0010] Furthermore, the spokes are fixed to the cylinder by welding or bolts.

[0011] Furthermore, the pipeline connecting the hydraulic pump and the hydraulic motor includes a high-pressure oil pipe and a return oil pipe, forming a closed or open hydraulic system.

[0012] Furthermore, the reduction gear set is a planetary gear reducer or a fixed-axis gear reducer.

[0013] Furthermore, the hydraulic motor is a radial piston motor or an axial piston motor.

[0014] Compared with the prior art, the hydraulically driven winch drum of this utility model has the following advantages:

[0015] (1) This application uses multiple hydraulic motors to synchronously drive the reduction gear set, which can significantly improve the total output torque, adapt to large load conditions, and avoid the problem of insufficient power of a single motor; at the same time, the symmetrical distribution of multiple motors reduces transmission vibration caused by uneven power input; the reduction gear set integrates a multi-input shaft design, eliminating the need for additional transmission components, and the overall structure is compact; the driving force can be flexibly adjusted by increasing or decreasing the number of hydraulic motors (to adapt to the number of input shafts of the reduction gear set), adapting to different load scenarios.

[0016] (2) This application uses a drum-shaped gear coupling to replace the traditional rigid coupling, which can effectively compensate for the radial and angular installation deviations between the output shaft of the reduction gear set and the cylinder, reduce shaft wear, and extend the service life of the equipment.

[0017] (3) The auxiliary braking component further provided in this application is driven by a hydraulic cylinder, providing large and controllable braking force, enabling reliable parking and emergency braking of the winch drum, and greatly improving the safety of the equipment. The entire braking structure has a reasonable layout, is compatible with the hydraulic drive system, and has a high degree of integration. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the hydraulically driven winch drum of this utility model;

[0019] Figure 2 for Figure 1 Another structural schematic diagram of a hydraulically driven winch drum;

[0020] Figure 3 for Figure 1 A top view of the hydraulically driven winch drum.

[0021] In the diagram: 1. Base assembly; 11. Base; 12. Support frame; 13. Bearing seat; 2. Roller assembly; 21. Cylinder; 22. Spoke; 3. Hydraulic drive assembly; 31. Hydraulic pump; 32. Hydraulic motor; 33. Reduction gear set; 34. Drum gear coupling; 4. Braking assembly; 41. Actuator; 411. Cylinder; 412. Piston rod; 42. Transmission component; 421. Ear seat; 422. Spherical plain bearing; 423. Brake lever; 43. Brake disc. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Figures 1-3 The present invention relates to a hydraulically driven winch drum, comprising a base assembly 1, a drum assembly 2, and a hydraulic drive assembly 3.

[0026] In this embodiment:

[0027] The base assembly 1 includes a base 11, a support frame 12, and a bearing seat 13. The support frame 12 is mounted on the base 11, and the bearing seat 13 is mounted on the support frame 12. The bearing seat 13 is used to mount the roller assembly 2.

[0028] The roller assembly 2 includes a cylinder 21 and spokes 22.

[0029] The cylinder 21 is supported on the bearing seat 13 by the main shaft and is used to wind the steel wire rope.

[0030] Spokes 22 are arranged radially on both sides of the cylinder 21 and are fixedly connected to the cylinder 21. Specifically, the spokes 22 are fixed to the cylinder 21 by welding or bolting to ensure structural integrity and prevent deformation.

[0031] The hydraulic drive assembly 3 includes a hydraulic pump 31, a reduction gear set 33, a drum gear coupling 34, and multiple hydraulic motors 32.

[0032] The hydraulic pump 31 is connected to multiple hydraulic motors 32 via pipelines to form a hydraulic circuit. In this embodiment, the hydraulic motors 32 are radial piston motors or axial piston motors, providing stable high-pressure output. The pipelines connecting the hydraulic pump 31 and the hydraulic motors 32 include high-pressure oil pipes and return oil pipes, forming a closed or open hydraulic system. The hydraulic drive has stepless speed regulation and overload protection functions, ensuring smooth operation and safety.

[0033] The reduction gear set 33 is mounted on the support frame 12 and has multiple input shafts and one output shaft. Each input shaft is connected to the output end of a hydraulic motor 32. In this embodiment, the reduction gear set 33 is a planetary gear reducer or a fixed-axis gear reducer, which has the advantages of compact structure and large transmission ratio.

[0034] This application uses multiple hydraulic motors 32 driven in parallel, and the torque is combined through the reduction gear set 33, which significantly improves the output torque and load-bearing capacity of the drum, making it suitable for heavy lifting conditions.

[0035] A drum-shaped gear coupling 34 is mounted on the output shaft, and the output shaft is connected to the cylinder 21 via the drum-shaped gear coupling 34. This application uses a drum-shaped gear coupling 34 to connect the output shaft and the drum, which has good angular and radial compensation capabilities, reduces installation accuracy requirements, reduces vibration and wear caused by misalignment, and improves transmission efficiency and service life.

[0036] The braking assembly 4 includes an actuator 41, a brake disc 43, and a transmission component 42.

[0037] The brake disc 43 is coaxially and fixedly connected to the cylinder 21. The actuator 41 is fixed on the support frame 12. The output end of the actuator 41 is engaged with the brake disc 43 through the transmission component 42 to apply braking force to the brake disc 43.

[0038] In this embodiment, the actuator 41 is a hydraulic cylinder, and the braking assembly 4 includes a lug 421, a spherical bearing 422, and a brake rod 423. The cylinder body 411 of the hydraulic cylinder is fixedly connected to the support frame 12 through the lug 421, and the piston rod 412 of the hydraulic cylinder is hinged to one end of the brake rod 423 through the spherical bearing 422. The other end of the brake rod 423 acts on the brake disc 43.

[0039] This application utilizes a hydraulic cylinder drive, which provides large and controllable braking force, enabling reliable parking and emergency braking of the winch drum, greatly improving equipment safety. The entire braking structure is rationally laid out, compatible with the hydraulic drive system, and highly integrated.

[0040] The working process for this application is as follows:

[0041] The hydraulic pump 31 starts and delivers pressurized oil to each hydraulic motor 32 through the high-pressure oil pipe, driving the hydraulic motors 32 to rotate synchronously.

[0042] The hydraulic motor 32 outputs power through the input shaft of the reduction gear set 33. After being reduced by the internal gears, the torque is output by the output shaft.

[0043] The drum-shaped gear coupling 34 transmits the power from the output shaft of the reduction gear set 33 to the spokes 22, which drives the cylinder 21 to rotate, and winds up and unwinds the wire rope to complete the lifting or traction operation of the heavy object.

[0044] This application uses multiple hydraulic motors 32 to synchronously drive the reduction gear set 33, which can significantly improve the total output torque, adapt to high load conditions, avoid the problem of insufficient power of a single motor, and at the same time, the symmetrical distribution of multiple motors reduces transmission vibration caused by uneven power input.

[0045] This application uses a drum-shaped gear coupling 34 to replace the traditional rigid coupling, which can effectively compensate for the radial and angular installation deviations between the output shaft of the reduction gear set 33 and the cylinder 21, reduce shaft wear, and extend the service life of the equipment. The reduction gear set 33 integrates a multi-input shaft design, eliminating the need for additional transmission components and resulting in a compact overall structure. The driving force can be flexibly adjusted by increasing or decreasing the number of hydraulic motors 32 (to match the number of input shafts of the reduction gear set 33), adapting to different load scenarios.

[0046] In this application, the spokes 22 are arranged radially to enhance the connection strength between the cylinder 21 and the drive assembly, and the base assembly 1 is made of high-strength material to ensure long-term stable operation of the equipment.

[0047] The auxiliary braking component 4 further provided in this application is driven by a hydraulic cylinder, providing large and controllable braking force, enabling reliable parking and emergency braking of the winch drum, and greatly improving equipment safety. The entire braking structure has a reasonable layout, is compatible with the hydraulic drive system, and has a high degree of integration.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydraulically driven winch drum, comprising a base assembly (1), characterized in that: It also includes a roller assembly (2) and a hydraulic drive assembly (3). The roller assembly (2) includes a cylinder (21) and spokes (22). The hydraulic drive assembly (3) includes a hydraulic pump (31), a reduction gear set (33), a drum gear coupling (34), and multiple hydraulic motors (32). The cylinder (21) is mounted on the base assembly (1) for winding steel wire rope. The spokes (22) are arranged radially on both sides of the cylinder (21) and are fixedly connected to the cylinder (21). The hydraulic pump (31) is connected to multiple hydraulic motors (32) through pipes to form a hydraulic circuit. The reduction gear set (33) is mounted on the base assembly (1) and is provided with multiple input shafts and one output shaft. Each input shaft is connected to the output end of one of the hydraulic motors (32). The drum gear coupling (34) is mounted on the output shaft and the output shaft is connected to the cylinder (21) through the drum gear coupling (34).

2. The hydraulically driven winch drum according to claim 1, characterized in that: The base assembly (1) includes a base (11), a support frame (12), and a bearing seat (13). The support frame (12) is mounted on the base (11), and the bearing seat (13) is mounted on the support frame (12). The cylinder (21) is supported on the bearing seat (13) by a main shaft.

3. The hydraulically driven winch drum according to claim 2, characterized in that: The hydraulically driven winch drum also includes a braking assembly (4), which includes an actuator (41), a brake disc (43), and a transmission component (42). The brake disc (43) is coaxially and fixedly connected to the drum body (21). The actuator (41) is fixed on the base (11) assembly (1). The output end of the actuator (41) engages with the brake disc (43) through the transmission component (42) to apply braking force to the brake disc (43).

4. The hydraulically driven winch drum according to claim 3, characterized in that: The actuator (41) is a hydraulic cylinder. The braking assembly (4) includes a lug (421), a spherical bearing (422), and a brake rod (423). The cylinder body (411) of the hydraulic cylinder is fixedly connected to the support frame (12) through the lug (421). The piston rod (412) of the hydraulic cylinder is hinged to one end of the brake rod (423) through the spherical bearing (422). The other end of the brake rod (423) acts on the brake disc (43).

5. The hydraulically driven winch drum according to claim 1, characterized in that: The spokes (22) and the cylinder (21) are fixedly connected by welding or bolts.

6. The hydraulically driven winch drum according to claim 1, characterized in that: The pipeline connecting the hydraulic pump (31) and the hydraulic motor (32) includes a high-pressure oil pipe and a return oil pipe, forming a closed or open hydraulic system.

7. The hydraulically driven winch drum according to claim 1, characterized in that: The reduction gear set (33) is a planetary gear reducer or a fixed-axis gear reducer.

8. The hydraulically driven winch drum according to claim 1, characterized in that: The hydraulic motor (32) is a radial piston motor or an axial piston motor.

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