CN2844094Y

CN2844094Y - Small tractor

Info

Publication number: CN2844094Y
Application number: CN 200520004433
Authority: CN
Inventors: 汪远帆
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-07
Filing date: 2005-02-07
Publication date: 2006-12-06
Anticipated expiration: 2015-02-07

Abstract

The utility model relates to a small tractor which comprising a motor, a reduction box, a rope roll, a support and a handle. The utility model is characterized in that a three stage planetary gear reducing mechanism is arranged in a gearbox and comprises a shaft pin, a first stage planetary wheel, a second stage planetary wheel, a third stage planetary wheel, a first stage planetary frame, a second stage planetary frame, a third stage planetary frame, a first inner gear ring, a second inner gear ring, a second stage sun wheel, a third stage sun wheel, a third stage inner gear ring and a spline shaft, wherein the first stage planetary wheel is engaged with the output shaft of the motor; the third stage planetary frame is connected with the rope roll through the spline shaft which is connected with the handle through a draw rod; the draw rod passes through the rope roll and extends to the outer side of the support. The utility model carries out reducing transmission through the three stage planetary gear reducing mechanism, enables all the gears to be arranged in the gearbox, has the advantages of compact structure, small size, small material consumption, low noise, high mechanical efficiency, convenient operation, etc., and is an ideal traction machine.

Description

Tug

Technical field

The utility model belongs to mechanical manufacturing field, and relating to is a kind of tug.

Background technology

In existing traction machine, its transmission device adopts the gear of external toothing fixed axis to carry out deceleration transmission often, the rotating speed required owing to traction machine is generally lower, so must slow down by more gear and bigger ratio of number of teeth, so these traction machine ubiquity complex structures, volume is big, noise is big, consumptive material is many, mechanical wear is big, use shortcomings such as inconvenience.

Summary of the invention

At the problems referred to above, the purpose of this utility model provides a kind of compact conformation, volume is small and exquisite, consumable material is few, noise is low, mechanical efficiency is high and easy to use tug.

The purpose of this utility model realizes as follows: a kind of tug, comprise motor, drop-gear box, rope barrel, support, handle, be characterized in being provided with in the drop-gear box third-level planetary gear reduction, this third-level planetary gear reduction comprises pivot pin, I level satellite gear, I level pinion carrier, II level sun wheel, II level satellite gear, II level pinion carrier, I, II level internally toothed annulus, III level sun wheel, III level satellite gear, III level internally toothed annulus, III level pinion carrier, castellated shaft, wherein I level satellite gear is meshed with the motor output shaft gear, be connected by castellated shaft between III level pinion carrier and the rope barrel, the pull bar that castellated shaft passes rope barrel by one and extends to the support outside is connected with handle.

Be with spring on the pull bar in the castellated shaft of the present utility model outside.

Because the utility model is to adopt the third-level planetary gear reduction to carry out deceleration transmission, all gears are all corresponding to be sleeved in the drop-gear box, therefore its compact conformation, volume are small and exquisite, the material that is consumed during manufacturing is also less, and stable drive, the mechanical efficiency height, vibrations and noise are minimum when work.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among the figure: 1 expression motor; 2 expression pivot pins; 3 expression I level satellite gears; 4 expression II level sun wheels; 5 expression I level pinion carriers; 6 expression II level satellite gears; 7 expression III level sun wheels; 8 expression II level pinion carriers; 9 expression I, II level internally toothed annulus; 10 expression III level satellite gears; 11 expression III level internally toothed annuluss; 12 expression deceleration box; 13 expression III level pinion carriers; 14 expression castellated shafts; 15 expression springs; 16 expression steel wire ropes; 17 expression reels; 18 expression supports; 19 expression pull bars; 20 expression handles.

The specific embodiment

The utility model will be further described below with reference to accompanying drawing and by embodiment.

As shown in Figure 1, tug has motor 1, drop-gear box 12, rope barrel 17, support 18, handle 20, motor 1 is connected with drop-gear box 12, support 18 is the gusset shape, the end, one side of support 18 is fixed on drop-gear box 12 lower box, rope barrel 17 is arranged between the another side of drop-gear box 12 and support 18, rope barrel 17 is provided with steel wire rope 16, be equipped with in the drop-gear box 12 by pivot pin 2, I level satellite gear 3, I level pinion carrier 5, II level sun wheel 4, II level satellite gear 6, II level pinion carrier 8, I, II level internally toothed annulus 9, III level sun wheel 7, III level satellite gear 10, III level internally toothed annulus 11, III level pinion carrier 13, the third-level planetary speed reduction gearing that spline 14 is formed, I level satellite gear 3 is meshed with the output shaft gear of motor 1, be connected by castellated shaft 14 between III level pinion carrier 13 and the rope barrel 17, the pull bar 19 that castellated shaft 14 passes rope barrel 17 by one and extends to support 18 outsides is connected with handle 20.During work, the output shaft gear of motor 1 drives I level satellite gear 3 and rotates, by with I level satellite gear 3 ingear I, II level internally toothed annulus 9 drives pivot pin 2 rotates I level pinion carrier 5, the II level sun wheel 4 that is fixed on I level pinion carrier 5 centers is so also rotated thereupon, thereby driving II level satellite gear 6 rotates, in like manner, II level pinion carrier 8 is driven and is rotated and drive III level sun wheel 7 and rotate by pivot pin under the effect of internally toothed annulus 9, III level sun wheel 7 drives the III level satellite gear 10 that is engaged with again and rotates, driving III level pinion carrier 13 under the effect of III level internally toothed annulus 11 rotates, after the deceleration by the third-level planetary speed reduction gearing, the rotating speed of III level pinion carrier 13 reaches the required rotating speed of traction machine, driving rope barrel 17 by castellated shaft 14 then rotates, thereby roll steel wire rope 16, reach the purpose of traction object.After traction work is finished, handle 20 is pulled out, make castellated shaft 14 break away from III level pinion carriers 13 by pull bar 19, this moment, rope barrel 17 can freely rotate, and lengthened so that steel wire rope 16 pulled out, and carried out draw operations next time.Be connected with III level pinion carrier 13 for castellated shaft 14 can be resetted after decontroling handle 20 fast, be with spring 15 on the pull bar 19 in castellated shaft 14 outsides.Because the third-level planetary gear reduction is sleeved in the drop-gear box all gears are all corresponding, assemble very convenient, and high lubricating effect, stable drive is reliable, the mechanical efficiency height, in distraction procedure, shake and noise minimum.

Claims

1. tug, comprise motor (1), drop-gear box (12), rope barrel (17), support (18), handle (20), it is characterized in that being provided with the third-level planetary gear reduction in the drop-gear box (12), this third-level planetary gear reduction comprises pivot pin (2), I level satellite gear (3), I level pinion carrier (5), II level sun wheel (4), II level satellite gear (6), II level pinion carrier (8), I, II level internally toothed annulus (9), III level sun wheel (7), III level satellite gear (10), III level internally toothed annulus (11), III level pinion carrier (13), castellated shaft (14), I level satellite gear (3) wherein, be meshed with motor (1) output shaft gear, be connected by castellated shaft (14) between III level pinion carrier (13) and the rope barrel (17), the pull bar (19) that castellated shaft (14) passes rope barrel by one and extends to the support outside is connected with handle (20).

2. tug according to claim 1, its feature is with spring (15) on the pull bar (19) in castellated shaft (14) outside.