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Planetary gear transmission with automatic gear shifting and hoist installed with the transmission

A planetary gear and automatic gear shifting technology, which is applied in the direction of gear transmission, hoisting device, transmission device, etc., can solve the limitation of speed regulation range and light load energy saving, high frequency output does not save power, and the tower crane has a large lifting stroke, etc. problems, to achieve remarkable energy-saving effects, energy-saving speed-up effects, and high work efficiency

Active Publication Date: 2019-02-01
姜启胜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Tower cranes and port cranes are the most widely used machinery in construction and ports and consume a lot of energy. The motors mostly use frequency conversion and pole-changing speed regulation. Because the speed reducer is fixed speed and the lifting stroke of the tower crane is large, generally no-load and light-load can be lifted quickly. At this time, the frequency converter needs high-frequency output and does not save power. The electric effect is remarkable; pole-changing speed regulation realizes the advantages of low cost of speed regulation, durability, etc., using single-winding three-speed or double-winding two-speed, etc., can get three-speed, four-speed and other multi-speed, because it is a fixed-speed reducer drive , so that the range of speed regulation and light-load energy saving are limited; hoists with large transmission ratios such as mines have models that can shift gears and speed regulation, but their structures are very complicated and bulky

Method used

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  • Planetary gear transmission with automatic gear shifting and hoist installed with the transmission
  • Planetary gear transmission with automatic gear shifting and hoist installed with the transmission
  • Planetary gear transmission with automatic gear shifting and hoist installed with the transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] figure 1 , figure 2 The planetary gear electric winch with automatic gear shifting, the flange plate of the motor 1 is fixed on one end of the frame 6 with bolts, the transmission 2 is installed inside the reel 4, and one end of the shell 2.7 is fixed on the frame 6. The gear center sun gear 2.2a is centered with the same internal spline 2.2a1, the clutch 2.3 is set between the planetary gears, the last n-stage planetary gear frame is connected with the reel 4, and the shift mechanism 3 is installed at the other end of the frame; the motor is hollow The rotor shaft 1.1 is provided with a full-length internal spline 1.1a, and the power input external spline 2.1a at the end of the driving shaft 2.1 meshes with the internal spline 1.1a; the driving shaft 2.1 runs through the transmission 2, and one end is inserted into the motor rotor shaft 1.1, and the other One end is inserted into the shifting mechanism 3, and driven by the shifting mechanism 3, the external splines 2...

Embodiment 2

[0047] like Figure 4 For the transmission with large transmission ratio shown, the first stage adopts K-H-V small tooth difference or cycloidal pin gear reducer as the high-speed stage, and the low-speed stage adopts one-stage or multi-stage 2K-H planetary gear reduction mechanism, and clutches are set between planetary gears at all stages 2.3, take the design eccentricity e measured radially from the center of the eccentric wheel 2.6 of the boom arm as the center, set the inner spline 2.2a1 in the opening; set the hollow journal 2.6a concentric with the inner spline 2.2a1 at both ends of the eccentric wheel, and the hollow journal One end of 2.6a is installed in the center bearing 2.6c of the end cover 2.6b, and the other end is installed in the center bearing 2.6c of the power output disk 2.6d; the hollow shaft 2.6d1 integrated with the power output disk 2.6d is divided by two diameters. The bearing 2.6c is installed in the other end cover 2.6b1, and the inner diameter of t...

Embodiment 3

[0052] said Image 6 The normally open clutch between the first and second gears shown is suitable for light and medium load equipment such as automobile cranes and tower cranes. The clutch tubular part 2.3c is pushed by the inner spring 2.3d1, and its end is arranged on the tubular The elastic retaining ring 2.3e on part 2.3a is in contact, the inner spline 2.3c1 is only engaged with the outer spline 2.3a1, the outer spline 2.3b1 is located at the position of the toothless empty ring 2.3c2, the clutch is normally open; The spline 2.1b meshes with the internal spline 2.2a1 of the first-speed planetary gear, the tubular member 2.3c moves to the power output side under the drive of the electromagnetic switch or hydraulic cylinder, and the internal spline 2.3c1 and the external spline 2.3b1 engage the clutch; transform After the gear position, the tubular member 2.3c loses power and returns under the action of the compression spring 2.3d, and the clutch is separated into a normal...

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Abstract

An automatic gear shifting and speed changing planetary gear transmission and a winch which mounts the transmission, comprising: an electric motor or a hydraulic motor (1), a transmission (2), a gear shifting mechanism (3), a reel (4), a brake (5), a machine frame (6) and so on; an end portion flange of the electric motor or hydraulic motor (1) is mounted to one end of the machine frame (6) by using a bolt; a hollow electric motor rotor shaft (1.1) or a hydraulic motor power output shaft (1.1) is provided therein with an internal spline (1.1a) which is in clearance fit with an external spline (2.1a) of an end portion of a transmission drive shaft (2.1); during gear shifting, the drive shaft (2.1) may linearly reciprocate in the electric motor rotor shaft (1.1) or the hydraulic motor power output shaft. The planetary gear transmission and the winch have simple structures, are small in volume, have large torque, have high transmission efficiency, and may shift gears and regulate speed according to load, thereby saving energy.

Description

technical field [0001] The invention relates to the field of hoisting machines, in particular to a planetary gear transmission with automatic gear shifting and a hoisting machine equipped with the transmission. Background technique [0002] The hoist is currently a special machine for lifting heavy objects and traction in construction installation, lifting, ships and other work. It is time-consuming and energy-consuming when lifting or pulling the load, especially when the hoist with multiple movable pulleys of the pulley block and the hoist with large reduction ratio is unloaded or light-loaded. [0003] Most mobile cranes use the internal combustion engine as the prime mover, and the hydraulic system drives the constant-speed reducer and the reel to rotate. Because the reducer is fixed-speed, if you want to lift quickly when lifting with no load or light load, you must increase the oil supply. Especially when a plurality of movable pulleys of the main jib block pulley are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66D1/22F16H3/62
CPCB66D1/225F16H3/62
Inventor 姜启胜
Owner 姜启胜
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