CN2345741Y

CN2345741Y - Four-line type power increasing driving device

Info

Publication number: CN2345741Y
Application number: CN 98208198
Authority: CN
Inventors: 张建国
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-23
Filing date: 1998-09-23
Publication date: 1999-10-27
Anticipated expiration: 2008-09-23

Abstract

The utility model provides a four connecting rod type power increasing and energy saving driving device, comprising a box body, a box cover, a gear, a shaft, a crank and rocker mechanism with four connecting rods, an inertial wheel, etc. The utility model has the function of power increasing at higher rotational speed, can reduce the electric consumption of a motor by 30%, and has obvious energy-saving effect and higher economic benefit. The utility model can be used for transmitting roots blowers, and can be used for transmitting various mechanical equipment with unstable working load at higher rotational speed.

Description

A kind of four link type force-amplifying transmission device

The utility model belongs to transmission device, particularly is applied to the drive unit of Roots blower, and is applicable to the transmission of the equipment that other non-stationary is loaded, rotating speed is higher.

In the transmission scheme of existing Roots blower, Roots blower all is that motor directly drives, and the transmission on general machinery equipment is through the gear reduction unit rear driving mostly by motor, speed reducer increases driving torque, and rotating speed descends, exist in these two kinds of kinds of drive: the one, its driving force of direct motor driving is less, the 2nd, with its rotating speed of speed reducer transmission lower (for high speed rotating equipment), and the energy consumption of a motor that uses for the device drives of non-stationary work loads is bigger.

The utility model provides a kind of have higher rotation speed, force-amplifying transmission device, and can reduce the energy consumption with energy-saving motor.

The utility model provides a kind of four connecting rod force-amplifying transmission devices.It mainly comprises casing 1, case lid 2, gear 3, axle 4, bearing 5, be characterized in a motor input shaft 4, a pair of reduction gear 3, large crankshaft 6, big connecting rod 7, rocking bar 8, rocker shaft 9, small rod 10, small crankshaft 11 and bearing pin 12, small gear is contained on the motor input shaft 4, gearwheel is contained in of large crankshaft 6, link into an integrated entity by chain 13 between gear and the axle, gearwheel also has at least two to turn 14 as a big small crankshaft of flying wheel device, big connecting rod is housed on the large crankshaft, big connecting rod is connected an end of rocking bar by bearing pin, the other end of rocking bar is contained on the casing by rocker shaft, on the neutral position of rocking bar, connect small rod by bearing pin, the other end of small rod is contained on the small crankshaft, the small crankshaft head is output axle head 15, be used for driving arrangement (Roots blower), the motor input shaft, the axle head of big small crankshaft all is equipped with bearing, and is contained on the casing and is supported by casing.

The another kind four connecting rod force-amplifying transmission devices that the utility model provides, it includes above-mentioned technological scheme, is characterized in adorning one or more flying wheels 16 at its input shaft in the drive line of output shaft.

By adopting above-mentioned technology of the present utility model,, increase by the feasible power that transmits of the leverage principle of its rocking bar, and keep rotating speed constant by the connecting rod that adopts.Under the effect of the flying wheel of the gearwheel in its transmission device or set up and have under the effect of the flying wheel in drive line with the energy-conservation mechanical energy that changes into of part electricity, and the function of accumulation of energy is arranged, thereby can in the equipment that drives non-stationary load, reach energy saving purposes.

Below in conjunction with diagrammatic sketch of the present utility model, be described in detail exemplary embodiments.

Fig. 1 is a four link type force-amplifying transmission device mechanism principle figure;

Fig. 2 is a four link type force-amplifying transmission device structural representation plan view;

Fig. 3 is a four link type force-amplifying transmission device structural representation plan view.

Fig. 1 is a four link type force-amplifying transmission device mechanism principle figure.The mechanism that it adopts is the composite mechanism of two four connecting rods of a pair of reduction gear 3 hyperbolic axles.It is by motoring pinion drive gearwheel, (reduction speed ratio is i=1: 2) gearwheel drives the rotation of large crankshaft through one-level deceleration back, large crankshaft is crank AB, drive big connecting rod BC, drive rocking bar CD at connecting rod BC, and swing, connect a small rod EF in the centre of rocking bar on 5, rocking bar drives small rod, small rod drives small crankshaft, and promptly small crank FG rotates, small crankshaft one end output carry-over moment.Rocking bar CD is a lever, and C, D, E are respectively three point of application of force, its CE: ED=2: 1, and the driving force that the big C of the power that E is ordered is ordered.Wherein, gearwheel and large crankshaft are linked into an integrated entity by chain, and crank throw should be greater than the gearwheel Pitch radius, and present embodiment adopts three-throw crankshaft (big small crankshaft), and three are respectively 120 degree between turning, and promptly have three cover quadratic crank mechanisms to come carry-over moment.This quadratic crank mechanism is a kind of crank-rocker structure.

Fig. 2 and Fig. 3 are the plan view and the plan views of four link type force-amplifying transmission device structural representation, comprise casing 1, gear 3, motor input shaft 4, bearing 5, large crankshaft 6, big connecting rod 7, rocking bar 8, rocker shaft 9, small rod 10, small crankshaft 11 and bearing pin 12 among the figure.Motor connects by shaft joint, with transmission of power to input shaft 4, slow down through a pair of big small gear 3, gearwheel is contained in of large crankshaft 6, big small gear is contained in input shaft respectively by chain 13 connections and large crankshaft turns on 14, and become one, big small crankshaft respectively has three to turn 14, by being equipped with on the axle at connecting rod 7, big connecting rod is connected with an end of rocking bar 8 by bearing pin 12 greatly, and the other end of rocking bar is hinged on rocking bar on the casing 1 by rocker shaft 9, on the neutral position of rocking bar, connect small rod 10 by bearing pin, the other end of small rod is contained in small crankshaft and turns on 14, and an end of small crankshaft is that elm goes out axle head 15, uses and drives Roots blower.The spindle nose of input shaft, big small crankshaft all is equipped with bearing 5, and is contained on the casing 1 and is supported by casing.Wherein, the gearwheel in drive line has than large rotating inertia, is a flying wheel, perhaps loads onto a flying wheel 16 on input shaft, and flying wheel can be saved mechanical energy.So that energy supplement is provided when working load is big, thereby reach energy saving purposes, experimental results show that of present embodiment, it with former power 960 rev/mins the electric motor driven Roots blower of 22KW, through setting up the utility model device with second-stage electric machine 13KW, 3000 rev/mins drive, the saving power consumption is about more than percent 30.

Pointed out the signal of one-throw crankshaft transmission lower crank rocking bar double-four link mechanism in Fig. 3, mulit-turning crankshaft is that the structure of one-throw crankshaft is overlapping, and driving mechanism is arranged in the casing 1, and case lid 2 has the effects such as safe, dustproof of protecting.

The four link type force-amplifying transmission device that the utility model provides is applied to the driving of Roots blower, also can be used as the transmission device of the higher equipment of rotating speed under dusting apparatus and the various non-stationary working load.

Claims

1, a kind of four link type force-amplifying transmission device, it comprises casing (1), case lid (2), gear (3), axle (4), bearing (5), it is characterized in that having a motor input shaft (4), a pair of reduction gear (3), large crankshaft (6), big connecting rod (7), rocking bar (8), rocker shaft (9), small rod (10), small crankshaft (11) and bearing pin (12), small gear is contained on the motor input shaft (4), gearwheel is contained in of large crankshaft (6), gear with the axle between be connected by chain (13), gearwheel is also as a flying wheel, big small crankshaft has at least two to turn (14), big connecting rod is housed on the large crankshaft, big connecting rod is connected an end of rocking bar by bearing pin, the other end of rocking bar is contained on the casing by rocker shaft, connects small rod by bearing pin on the neutral position of rocking bar, and the other end of small rod is contained on the small crankshaft, one of small crankshaft is output axle head (15), driving arrangement, the motor input shaft, the axle head of big small crankshaft all is equipped with bearing (5), and is contained on the casing and is supported by casing.

2, a kind of four link type force-amplifying transmission device according to claim 1 is characterized in that being equipped with in its drive line flying wheel (16).