Patent ID: 11897737
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 3:
4. The winch according to claim 3, wherein a thrust bearing (7a) is installed on an outer diameter of a left side of the clutch shifter execution unit tubular member (2.5 b) with a shoulder (2.5 b2), a left side of the thrust bearing is positioned by a stopper ring (9), and one end of the spring (10) is in contact with a right side of the thrust bearing (7a), and the other end of the clutch shifter execution unit tubular member (2.5 b) is in contact with a thrust bearing (7a) sleeved on a wear-resistant annular member (2.5 b3) and embedded on the right planetary gear carrier, the left end of the clutch shifter execution unit tubular member (2.5 b) and the end of the planetary gear carrier are arranged in a tooth-embedded mode, and a gear type clutch II (2.5 b1) and a right spline (2.5 b4) arranged on the clutch shifter execution unit tubular member are meshed with an annular shaft extension spline (2.2 a21) and can slide axially, the inner diameter is provided with an inner shaft shoulder (2.5 b2) from the left side, a bearing (7) with an inner spline on the inner ring, a limiting elastic retainer ring (9), a thrust bearing (7a), a driving shaft power output gear (2.3 a) and a limiting elastic retainer ring (9), a driving shaft power output gear adopts an end face tooth form or a tooth cog I (2.3 a1) to be meshed with a central sun gear left tooth form or a tooth cog II (2.2 a26), a positioning pin (2.5 b5) is radially arranged on a tubular part (2.5 b), and the positioning pin (2.5 b5) is inserted into a power output gear outer diameter ring groove (2.3 a2) for positioning;
the inner spline (2.3 a3) of the power output gear of the driving shaft is meshed with the outer spline (2.31) of the driving shaft and can slide axially, the driving unit II (2.5 a) drives the clutch shifter execution unit tubular member (2.5 b) to move to the right, and the tooth profile or cog I (2.3 a1) and the left tooth profile or cog II (2.2 a26) of the central sun gear are combined for gear shifting, when the tubular member (2.5 b) moves into engagement or contact with the left clutch II (2.5 b1) under the drive of the spring force or the driving unit II (2.5 a), the driving shaft power output gear (2.3 a) is separated from the central sun gear and idles along with the drive shaft (2.3);
the length of the annular shaft extension spline (2.2a21) on the left side of the central sun gear is greater than or equal to the structural engagement length of the right side spline (2.5 b4) of the tubular member plus the engagement length of the clutch II (2.5 b1) and the total stroke length of the driving shaft power output gear (2.3 a), tooth shapes or tooth cogs II (2.2 a26) are arranged inside or on the end face and are combined with tooth shapes or tooth cogs I (2.3 a1) of the power output gear of the driving shaft, conical slope feet (2.2 a11) are arranged on the right side or two sides, and lubricating oil through holes (2.2 a12) are uniformly distributed in the central radial direction of the central sun gear and the radial direction of the conical slope feet (2.2 a11), an oil-retaining material (2.68) is arranged between the conical slope foot (2.2 a11) and the tubular part (2.5 b) in a space manner, a needle bearing (7c) with an inner ring inner spline engaged with an outer spline of the driving shaft or a sliding bearing (7b) with an inner spline engaged with the outer spline of the driving shaft is arranged between the inner diameter of the central sun gear central hole (2.2 a1) and the driving shaft, and the sliding bearing (7b) can also be installed in a floating manner, wear-resistant material gaskets (8) are arranged on the left side and the right side, and the outer side is positioned by limiting elastic check rings (9) arranged on the driving shaft.