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CN-224212322-U - Hydraulic winch capable of changing speed and reducing noise

CN224212322UCN 224212322 UCN224212322 UCN 224212322UCN-224212322-U

Abstract

The utility model discloses a variable-speed noise-reducing hydraulic winch, which belongs to the technical field of winches and adopts the technical scheme that the variable-speed noise-reducing hydraulic winch comprises a frame, a radial plunger motor, a reduction gearbox and two drums, wherein the two drums are arranged on the frame in a rotating mode and are coaxially arranged, a motor gear I is coaxially arranged at the output end of the radial plunger motor, the reduction gearbox comprises a box body, a transmission gear I, a transmission gear II and a transmission gear III, the transmission gear I, the transmission gear II and the transmission gear III are rotatably arranged in the box body, the motor gear I is meshed with the transmission gear I, the transmission gear I is coaxially connected with the transmission gear II, the transmission gear II is meshed with the transmission gear III, an output shaft of the reduction gearbox is coaxially connected with the transmission gear III, the two drums are coaxially connected with the output shaft of the reduction gearbox, a plurality of grooves for accommodating steel wire ropes are formed in the outer side walls of the drums, grease layers are uniformly distributed in the grooves along the axis direction of the drums, and the hydraulic winch can effectively reduce noise.

Inventors

  • HONG WEIPING
  • WANG LIWEI

Assignees

  • 浙江万通重工有限公司

Dates

Publication Date
20260508
Application Date
20250624

Claims (8)

  1. 1. The speed-changing and noise-reducing hydraulic winch is characterized by comprising a frame (1), a radial plunger motor (2), a reduction gearbox (5) and two drums (4), wherein the two drums (4) are all rotatably arranged on the frame (1) and are coaxially arranged, an output end (55) of the radial plunger motor (2) is coaxially provided with a motor gear I (3), the reduction gearbox (5) comprises a box body (51), a transmission gear I (52), a transmission gear II (53) and a transmission gear III (54), the transmission gear I (52), the transmission gear II (53) and the transmission gear III (54) are all rotatably arranged in the box body (51), the motor gear I (3) is meshed with the transmission gear I (52), the transmission gear I (52) is coaxially connected with the transmission gear II (53), the output end (55) of the reduction gearbox (5) is coaxially connected with the transmission gear III (54), the two drums (4) are coaxially connected with the transmission gear III (54) along the axis of the reduction gearbox (6) along a plurality of grooves (6) which are uniformly distributed on the outer sides of the drums (6), and a plurality of grooves (6) are internally provided with grease layers (7).
  2. 2. The variable speed and noise reduction hydraulic winch according to claim 1, wherein the box body (51) is rotatably provided with a transmission shaft (8), the transmission gear I (52) and the transmission gear II (53) are coaxially arranged on the transmission shaft (8), and aligning roller bearings (9) are arranged between two ends of the transmission shaft (8) and the box body (51) and between two ends of an output shaft of the reduction gearbox (5) and the box body (51).
  3. 3. The variable speed and noise reduction hydraulic winch according to claim 2, wherein the box body (51) is internally provided with a containing cavity (10) corresponding to the self-aligning roller bearing (9), the self-aligning roller bearing (9) is arranged in the containing cavity (10), the box body (51) is detachably connected with a cover plate (11) corresponding to the containing cavity (10), and the cover plate (11) is used for sealing an opening of the containing cavity (10).
  4. 4. The hydraulic winch with variable speed and noise reduction according to claim 3, wherein the cover plate (11) comprises a sound insulation layer (12), a sound absorption layer (13) and a protective layer (14), and the sound insulation layer (12), the sound absorption layer (13) and the protective layer (14) are sequentially arranged from inside to outside.
  5. 5. The hydraulic winch with variable speed and noise reduction according to claim 4, wherein the sound insulation layer (12) is made of a sound insulation felt material, the sound absorption layer (13) is made of a glass fiber cotton material, and the protective layer (14) is made of an aluminum alloy material.
  6. 6. The variable speed and noise reduction hydraulic winch according to any one of claims 1 or 2 or 3 or 4 or 5, wherein the cross section of the grooves (6) is circular arc.
  7. 7. The variable-speed noise-reducing hydraulic winch according to claim 1, 2, 3, 4 or 5, wherein a plurality of oil outlet holes (15) are formed in the bottom of the groove (6), oil injection holes are formed in one end of the winding drum (4), the oil injection holes are communicated with the plurality of oil outlet holes (15), and the diameters of the plurality of oil outlet holes (15) are gradually reduced from one end far away from the groove (6) to one end close to the groove (6).
  8. 8. The hydraulic winch with variable speed and noise reduction according to claim 7, wherein the bottoms of the grooves (6) are provided with honeycomb washers (16), the washers (16) cover the oil outlet holes (15), and the washers (16) can store and release grease slowly.

Description

Hydraulic winch capable of changing speed and reducing noise Technical Field The utility model belongs to the technical field of winches, and particularly relates to a variable-speed noise-reduction hydraulic winch. Background The hydraulic winch is a light and small hoisting device which uses a winding drum to wind a steel wire rope to lift or pull a heavy object, is also called a winch, is widely applied to ships, is a deck device necessary on the ship, and is mainly used for operations such as ship anchor, mooring, dragging, hoisting goods, pulling ropes and the like. The wire rope is twisted by stranded wire, and there is processing line or tiny unevenness on the reel surface, produces high frequency vibration and frictional noise easily when the two contact, and in the winding process, there is tiny relative slip also can cause the noise between wire rope and the reel. The steel wire rope is formed by twisting a plurality of high-strength steel wires, the surface of the steel wire rope presents complex multi-layer textures, turning textures or grinding wheel grinding marks are inevitably formed on the winding drum in the processing process, and when the steel wire rope contacts with the winding drum in the dynamic winding process, vibration and noise can be caused by interaction of the steel wire rope and the winding drum. Disclosure of utility model The utility model aims to solve the problems in the prior art, and provides a hydraulic winch capable of changing speed and reducing noise. The hydraulic winch capable of achieving speed changing and noise reduction comprises a frame, a radial plunger motor, a reduction gearbox and two drums, wherein the two drums are arranged on the frame in a rotating mode and are coaxially arranged, a motor gear I is coaxially arranged at an output end 55 of the radial plunger motor, the reduction gearbox comprises a box body, a transmission gear I, a transmission gear II and a transmission gear III, the transmission gear I, the transmission gear II and the transmission gear III are rotatably arranged in the box body, the motor gear I is meshed with the transmission gear I, the transmission gear I is coaxially connected with the transmission gear II, the transmission gear II is meshed with the transmission gear III, an output shaft of the reduction gearbox is coaxially connected with the transmission gear III, the two drums are coaxially connected with an output shaft of the reduction gearbox, a plurality of grooves used for containing steel wire ropes are formed in the outer side wall of the drum, the grooves are uniformly distributed along the axis direction of the drum, and grease layers are arranged in the grooves. In the hydraulic winch for speed changing and noise reduction, a transmission shaft is rotatably arranged in the box body, the first transmission gear and the second transmission gear are coaxially arranged on the transmission shaft, and aligning roller bearings are arranged between the two ends of the transmission shaft and the box body and between the two ends of an output shaft of the reduction gearbox and the box body. In the hydraulic winch capable of changing speed and reducing noise, the accommodating cavity corresponding to the aligning roller bearing is arranged in the box body, the aligning roller bearing is arranged in the accommodating cavity, the cover plate corresponding to the accommodating cavity is detachably connected to the box body, and the cover plate is used for sealing the opening of the accommodating cavity. In the hydraulic winch capable of changing speed and reducing noise, the cover plate comprises a sound insulation layer, a sound absorption layer and a protective layer, and the sound insulation layer, the sound absorption layer and the protective layer are sequentially arranged from inside to outside. In the hydraulic winch capable of changing speed and reducing noise, the sound insulation layer is made of a sound insulation felt material, the sound absorption layer is made of a glass fiber cotton material, and the protective layer is made of an aluminum alloy material. In the hydraulic winch capable of changing speed and reducing noise, the cross sections of the grooves are all arc-shaped. In the above-mentioned variable speed and noise reduction hydraulic winch, a plurality of oil outlet is offered to the bottom of recess, the one end of reel is provided with the oil filler point, the oil filler point with a plurality of the oil outlet is linked together, a plurality of the diameter of oil outlet is from keeping away from the one end of recess to being close to the one end of recess reduces gradually. In the hydraulic winch capable of changing speed and reducing noise, the bottoms of the grooves are provided with the honeycomb-shaped gaskets, the gaskets cover the oil outlet holes, and grease can be stored and slowly released. In summary, compared with the prior art, the utility model has the following beneficial effects: Th