CN2447240Y

CN2447240Y - Mechanical electric vehicle-lifting machine

Info

Publication number: CN2447240Y
Application number: CN 00215522
Authority: CN
Inventors: 廉恩荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-07-18
Filing date: 2000-07-18
Publication date: 2001-09-12
Anticipated expiration: 2010-07-18

Abstract

The utility model relates to a lifting device for jacking up freight, particularly a movable mechanical electric vehicle-lifting machine mainly used for maintaining freight carriages in railway systems. The utility model is characterized in that a supporting frame of the mechanical electric vehicle-lifting machine is provided with a box body 13; the box body 13 is provided with a rotary shaft 8, a worm gear l5, and a screw nut 6, wherein, the worm gear 5 and the screw nut 6 are combined into integration, the screw nut 6 is meshed with a screw rod 2, and the worm gear 5 is meshed with a worm 3. The utility model has the advantages that one end of a vehicle can be jacked up; a single mechanical electric vehicle-lifting machine can be used, and two mechanical electric vehicle-lifting machines can be used in linkage.

Description

The electronic machine of driving of mechanical type

The utility model relates to a kind of hoisting device of jack-up goods, mainly the electronic machine of driving of removable mechanical type that uses for railway system's maintenance truck body.

At present, the employed removable electronic machine of driving of the railway system has two kinds: a kind of is the electronic machine of driving of mechanical type, and a kind of is the electronic machine of driving of fluid pressure type.The electronic machine of driving of mechanical type is on the basis of mechanical type jack, install that speed-changing mechanism and motor make additional, the employing screw rod rotates, the form of lift nut, when an end of the machine jack-up railway carriage of driving, the angle between railway carriage and the rail constantly increases, with nut be that the push rod of one can not change thereupon, so nut not only has axle pressure to screw rod, radial pressure is arranged also.Because lifting travel is big, and radial pressure increases along with the rising of railway carriage, and Gu screw rod is thick, friction torque is big, mechanical efficiency is low, power of motor is big, integral body is heavy, mobile inconvenience, seldom use.The fluid pressure type electric screw jacks for lifting locomotive, two are used difficult interlock simultaneously, and when particularly falling, descending speed is wayward, and two can not be synchronous, causes danger easily.Also, bring inconvenience to the user owing to leakage of oil, fault rate height, bad maintenance.

The purpose of this utility model is: provide a kind of mechanical type the electronic machine of driving, it has, and lift is big, volume is little, in light weight, conveniently moving, the use power of motor is little, energy-conservation, lifting is steady.

The technical solution of the utility model is, rotating shaft 8 is installed on casing 13, and casing 13 can turn an angle on support 14, and nut 6 is installed on the casing 13 by bearing 7, bearing 9, bearing 10.Screw rod 2 is meshed with nut 6, and nut 6 is an one with worm gear 5, and worm gear 5 is meshed with worm screw 3, worm screw 3 is installed on the casing 13 by bearing 4, worm gear 16 is installed on the worm screw 3, and worm gear 16 is meshed with worm screw 17, and worm screw 17 is connected with motor shaft by adapter sleeve 18.Motor is installed on the casing.Supporting plate 1 is installed in the upper end of screw rod 2, and screw rod spline axle 21 is installed in the lower end, on the spline axle 21 bearing is installed, and bearing rolls on the track of screw jacket.Screw jacket is fixed on the casing.Casing rotates along with the rising of railway carriage when its jack-up railway carriage one end, and to guarantee that railway carriage to the pressure of screw rod all the time vertically, therefore can reduce screw diameter as far as possible, friction torque reduces.On the screw rod spline axle bearing is installed, when the screw rod lifting,, mechanical efficiency is improved greatly, reached that lift is big, volume is little, in light weight, conveniently moving and purpose of energy saving because the friction force that the screw rod spline produces reduces.

The utility model proves through practicality, it has, and big, the used power of motor of lift is little, energy-conservation, volume is little, in light weight, conveniently moving, have interlock and single action mode, can detect the operating condition of two motors automatically during interlock, and have simple to operate, lifting is steady, safe and reliable, robust advantage.

Description of drawings: accompanying drawing 1 is a structural representation of the present utility model, and accompanying drawing 2 is left views of accompanying drawing 1.

The contrast accompanying drawing elaborates to the utility model embodiment, and 14 is supports among the figure, and casing 13 is installed on the support 14, and rotating shaft 8 and screw jacket 12 are installed on the casing 13.Rotating shaft 8 can be rotated on support.Worm screw 3 is installed in the casing 13, worm gear 5, nut 6, worm gear 5 is an one with nut 6, and bearing 7, bearing 9, bearing 10 circular nuts 11 are installed on the nut 6.Bearing 4 and worm gear 16 are installed on the worm screw 3.Worm gear 16 is meshed with worm screw 17, and worm screw 17 is connected with motor shaft by adapter sleeve 18, and motor 19 is installed on the casing 13 by motor cabinet 20.Supporting plate 1 is installed in the upper end of screw rod 2, and screw rod spline axle 21 is installed in the lower end, and bearing 22 is installed on the spline axle 21.Positioning plate 15 (being used to control screw rod rotates in required angle) also is installed on the support 14, control box 23, control box 23 is connected with motor 19 by electric wire.When the utility model uses, two mechanical type electric screw jacks for lifting locomotive are put into the jack-up position of railway carriage one end, energized is pressed E key power light and is lighted.Press the A key again, two motors rotate simultaneously, drive worm screw 17 and rotate, and worm screw 17 drives worm gear 16 and rotates, and worm gear 16 drives worm screw 3 and rotates, and worm screw 3 drives worm gear 5 and rotates.Be that nut 6 rotates, drive screw rod 2 and rise, by supporting plate 1 railway carriage one end jack-up.When railway carriage is set level, reverse simultaneously by two motors of B key, screw rod 2 descends, and railway carriage is set level.When separate unit is adjusted, press the C key, this TV station motor rotates, and drives screw rod and rises.Press the D key, the motor counter-rotating drives screw rod and descends.

Claims

1, the electronic machine of driving of a kind of mechanical type, it has support (14), it is characterized in that: support (14) is gone up casing (13) is installed, worm screw (3), worm gear (5) are installed in rotating shaft (8) in casing (13), nut (6), screw rod (2), worm gear (5) is meshed with worm screw (3), and nut (6) is meshed with screw rod (2).

2, the electronic machine of driving of mechanical type according to claim 1 is characterized in that: worm gear (5) is an one with nut (6), and nut rotates, the screw rod lifting.

3, the electronic machine of driving of mechanical type according to claim 1 is characterized in that: casing (13) is gone up rotating shaft (8) is installed.

4, the electronic machine of driving of mechanical type according to claim 1, it is characterized in that: the lower end of screw rod (2) is equipped with spline axle (21), and spline axle (21) is gone up bearing (22) is installed.