CN200995938Y

CN200995938Y - Lifting mechanism of elevator for vehicle

Info

Publication number: CN200995938Y
Application number: CN 200620029474
Authority: CN
Inventors: 王隶梓
Original assignee: Changchun Institute Technology
Current assignee: Changchun Institute Technology
Priority date: 2006-10-19
Filing date: 2006-10-19
Publication date: 2007-12-26
Anticipated expiration: 2016-10-19

Abstract

A lifting device of truck crane comprises a bracket, a hydraulic motor, a speed reducer, a drum, a clutch and a brake. The speed reducer is arranged inside the drum and the input shaft is mounted on the bracket with pin. The input shaft of the speed reducer is connected with the hydraulic motor and the output shaft is connected with the drum. The shell of the speed reducer is fixed on the bracket with at least one side. The device is characterized in that: the speed reducer comprises two planetary gear set and each gear ring is fixed on the shell of the speed reducer. A sun wheel of one planetary gear set is connected with the input shaft of the speed reducer for power input and the planet carrier is connected with the sun wheel of the other planetary gear set. Bearing is arranged between the sun wheel of the planetary gear set and the input shaft of the speed reducer. The planet carrier is connected with the output shaft of the speed reducer.

Description

A kind of car hosit lifting mechanism

Technical field

The utility model relates to a kind of car hosit, exactly is a kind of car hosit lifting mechanism.

Background technology

The car hosit lifting mechanism generally is made up of motor, reductor, reel, power-transfer clutch, drg, steel rope, be placed on the telescopic boom afterbody, reasonably putting is a difficult problem, reductor and maximum that reel takes up space, for increasing the capacity of steel rope, dwindle the steel rope skew, prevent disorder cable, much all adopt the two reels of twin shaft, it is bigger that this takes up space lifting mechanism, cause the telescopic boom afterbody crowded, so on the basis that guarantees coiling length, reduce reductor and reel occupation space, expendable weight, cost-cutting is that the designer wants the problem that solves always.

Summary of the invention

The purpose of this utility model is exactly to reduce reductor and the shared space of reel, expendable weight, and cost-cutting, and a kind of car hosit lifting mechanism is provided.

For achieving the above object, this practicality is newly by the following technical solutions: it is by support, HM Hydraulic Motor, reductor is formed, reel, power-transfer clutch, drg is formed, reductor places in the reel, the input shaft of reductor is articulated on the support, be connected with HM Hydraulic Motor, output shaft is connected with reel, at least one side of reductor shell is fixed on the support, described reductor comprises two compound planet gears, each gear ring all is fixed on the shell, one planet gear cluster sun wheel is captiveed joint with imput power with input shaft, pinion carrier is captiveed joint with another compound planet gear sun wheel, is provided with bearing between another compound planet gear sun wheel and the input shaft, and pinion carrier is connected with output shaft, the gear of each compound planet gear is to wait profile shifting gear, and the planetary wheel number average is three.

Described reductor input shaft is located in the output shaft, and two between centers have bearing, and power input, output are at homonymy, and the opposite side of reel is put power-transfer clutch and drg.

Described reel is the two reels of twin shaft, the two winding drum arrangement in parallel.

Under the effect of HM Hydraulic Motor power, input shaft drives a planet gear cluster sun wheel and rotates, the gear ring braking, satellite gear is done planet motion, driving another compound planet gear sun wheel by pinion carrier is that axle rotates with the input shaft, the gear ring braking, satellite gear is done planet motion, drives reel and rotates by pinion carrier, output shaft.

The utility model is because employing comprises two compound planet gears, the sun wheel imput power, the pinion carrier outputting power, each compound planet gear is to wait profile shifting gear, the planetary wheel number average is three a reductor, reduced the volume of reductor, the shape of reel, volume is not placed the restriction of reductor volume in the reel, and reductor reduces 20-30% than traditional design, reel reduces 10-20%, because reductor input, output is at homonymy, and the opposite side of reel can be put power-transfer clutch and drg, makes whole car hosit lifting mechanism, put clean and tidy, compact, reduce the lifting mechanism occupation space, the profile smoothness, safety factor also is greatly improved.

Description of drawings

Fig. 1 is the structural representation of the utility model example.

Concrete real mode

Please refer to shown in Figure 1, the utility model is by support 2, HM Hydraulic Motor 1, reductor 3, reel 4, power-transfer clutch, drg is formed, reductor 3 places in the reel 4, the input shaft 35 of reductor 3 is articulated on the support 2, input shaft 35 freely rotates in support 2, and captive joint with HM Hydraulic Motor 1, output shaft 34 is connected with reel 4, shell 36 is fixed on the support 21 by axle 41, braking shell 36, described reductor 3 comprises two compound planet gears, gear ring 314 and gear ring 324 all are fixed on the reductor shell 36, sun wheel 311 is captiveed joint with input shaft 35, pinion carrier 312 is captiveed joint with sun wheel 321, be provided with bearing 33 between sun wheel 321 and the input shaft 35, pinion carrier 323 is connected with output shaft 34, the gear of each compound planet gear is to wait profile shifting gear, satellite gear 322 and satellite gear 312 are three, input shaft 35 is located in the output shaft 34, and two between centers have bearing, is provided with bearing between output shaft 34 and the reel 4, also be provided with bearing between reel 4 and the axle 41, with input shaft 35 and output shaft 34 at homonymy, the opposite side of reel 4 is put power-transfer clutch and drg, also have one with the loose drum of reel 4 arrangement in parallels.

Under the effect of HM Hydraulic Motor 1 power, input shaft 35 drives sun wheel 311 and rotates, gear ring 314 brakings, satellite gear 312 is done planet motion, driving sun wheel 321 by pinion carrier 313 serves as that axle rotates with input shaft 35, gear ring 324 brakings, satellite gear 322 is done planet motion, drives reel 4 and rotates by pinion carrier 323, output shaft 34.

The utility model is because employing comprises two compound planet gears, sun wheel 311 imput powers, pinion carrier 323 outputting powers, the gear of each compound planet gear is to wait profile shifting gear, each organizes the planetary wheel number average is three reductor 3, input, output is at homonymy, and the opposite side of reel 4 can be put power-transfer clutch and drg, has reduced the volume of reductor 3, the shape of reel 4, volume is not placed the restriction of reductor 3 volumes in the volume, reductor 3 reduces 20-30% than traditional design, and reel reduces 10-20%, makes whole car hosit lifting mechanism, put clean and tidy, compact, reduce the lifting mechanism occupation space, the profile smoothness, safety factor also is greatly improved.

Claims

1, a kind of car hosit lifting mechanism, it is by support, HM Hydraulic Motor, reductor is formed, reel, power-transfer clutch, drg, reductor places in the reel, the input shaft of reductor is articulated on the support, be connected with HM Hydraulic Motor, output shaft is connected with reel, at least one side of reductor shell is fixed on the support, it is characterized in that: described reductor comprises two compound planet gears, each gear ring all is fixed on the shell, and a planet gear cluster sun wheel is captiveed joint with imput power with input shaft, and pinion carrier is captiveed joint with another compound planet gear sun wheel, be provided with bearing between another compound planet gear sun wheel and the input shaft, pinion carrier is connected with output shaft.

2, a kind of car hosit lifting mechanism according to claim 1 is characterized in that: each compound planet gear of described reductor is to wait profile shifting gear, and the planetary wheel number average is three.

3, a kind of car hosit lifting mechanism according to claim 1, it is characterized in that: described reductor input shaft is located in the output shaft, and two between centers have bearing, and the power input and output are at homonymy, and the opposite side of reel is put power-transfer clutch and drg.

4, a kind of car hosit lifting mechanism according to claim 1 and 2 is characterized in that: reel is the two reels of twin shaft, the two winding drum arrangement in parallel.