CN2412668Y

CN2412668Y - Double half axle vibrator

Info

Publication number: CN2412668Y
Application number: CN 00213503
Authority: CN
Inventors: 徐振华; 张玉春; 解希众; 张作家; 庞风岭
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-17
Filing date: 2000-02-17
Publication date: 2001-01-03
Anticipated expiration: 2010-02-17

Abstract

The utility model discloses a double half axle vibrator which is used for a sizing screen. The utility model is composed of half axles, a flywheel, a centrifugal axle, a driving wheel, a counterweight wheel, a bearing seat, a shield, and a bottom plate. The utility model has the structural characteristics that the half axles, the flywheel, the centrifugal axle, and the driving wheel form a connected structure, and a rotation which uses the half as axial centers can be realized. Because the centrifugal axle is installed on the flywheel at the place which deviates from the center of the flywheel, an eccentric butt joint structure is formed, and eccentric vibration can be realized. The vibrator has the advantages of large vibration strength, low failure rate, little maintenance cost, safety, and convenient operation and maintenance.

Description

The Double half axle vibrator

The utility model belongs to mining machinery, particularly be the vibrator that is used for the classifying screen of coal screening in the colliery.

In the present prior art, the classifying screen vibrator that is used for coal screening mainly contains three kinds of patterns, a kind of is eccentric shaft type, this vibrator can be realized bigger vibratory output, obtain the employing in many collieries, but the vibration when classifying screen starts and stops of this vibrator is violent, damage the intensity of classifying screen easily, destroy the internal structure of bearing block, the destruction of bearing is also compared seriously, shortened the life-span of classifying screen greatly, and because of vibrator and classifying screen belong to integrative-structure, can only integral replacing after the damage, increased the difficulty and the maintenance capacity of repair and replacement greatly, significantly increase maintenance cost; Another kind is a rubber spring type, this vibrator is destructive little to classifying screen, keep in repair more conveniently, but the easy aged deterioration of rubber spring makes the classifying screen vibration unstable, if it is untimely that rubber spring is changed, then vibratory output is very little, directly influences screening effect, will often shut down the replacing rubber spring for this reason, and expense is higher, can not satisfy the needs of classifying screen screening; The third is the vibrating motor formula, and this mode of vibration often motor is fragile, and the life-span is short, and practical application effect is relatively poor.

The purpose of this utility model be to provide a kind of simple in structure, maintenance capacity is little, vibrates long Double half axle vibrator of stable, economical and practical, life-span.

The purpose of this utility model is achieved in that accompanying drawings is as follows:

A kind of Double half axle vibrator is made up of semiaxis, flywheel, centrifugal shaft, drive, weighting distribution wheel, bearing block, guard shield and base plate, and its design feature is:

Two-semiaxle (5) and (10) symmetric arrangement, bearing block (3) and (12) are fixed on the base plate (15) by bolt (16); The outer end of semiaxis (5) is equipped with drive (2), and the outer end of semiaxis (10) is equipped with weighting distribution wheel (13), and the inboard of semiaxis (5) and (10) is separately installed with flywheel (6) and (9); The two ends of centrifugal shaft (7) are separately fixed on flywheel (6) and (9); Two outer ends of two-semiaxle (5) and (10) are located drive (2) and weighting distribution wheel (13) by end cap (1) and (14) respectively; Guard shield (8) is welded on the base plate (15); Screw (17) is fixed together base plate (15) and screen frame.

The utility model discloses a kind of Double half axle vibrator, it is by the rotation of motor drives drive, and then drives the semiaxis rotation, because semiaxis, flywheel, weighting distribution wheel and centrifugal shaft are conjoined structure, then realize being the axle center rotation jointly with the semiaxis, the center of flywheel of having installed position deviation because of centrifugal shaft forms eccentric docking structure again, has realized eccentric vibration, this vibrator makes the classifying screen vibration stable, steady, oscillation intensity is big, and is simple and compact for structure, is convenient to install, use and keep in repair.

Accompanying drawing 1 is a Double half axle vibrator cross-sectional view.

Description of drawings and embodiment:

Be illustrated as follows:

1 is end cap, and 2 is drive, and 3 is bearing block, and 4 is bearing, and 5 is semiaxis, and 6 is flywheel, and 7 is centrifugal shaft, and 8 is guard shield, and 9 is flywheel, and 10 is semiaxis, and 11 is bearing, and 12 is bearing block, and 13 is weighting distribution wheel, and 14 is end cap, and 15 is base plate, and 16 is bolt, and 17 is screw.

Because the utility model Double half axle vibrator machinery requirement of strength is very high, it is best that all parts all use steel plate and round steel etc. to make.

Accompanying drawing 1 is a cross-sectional view, can see that two-semiaxle (5) and (10) by diaxon bearing (3) and (12) symmetric arrangement, have bearing (4) and (11) respectively in bearing block (3) and (12); The outer end of semiaxis (5) is equipped with drive (2) and end cap (1), and the outer end of semiaxis (10) is equipped with weighting distribution wheel (13) and end cap (14); The inboard of two-semiaxle (5) and (10) is separately installed with flywheel (6) and (9), flywheel (6) and (9) are with semiaxis (5) and (10) welding or by bolting together, centrifugal shaft (7) welds or departs from the center by being bolted to two flywheels (6) and (9); Diaxon bearing (3) and (12) are fixed on the base plate (15) by bolt (16), and screw (17) is arranged on the base plate (15), and screw (17) is fixed together base plate (15) and screen frame, also is fixed with guard shield (8) on base plate (15).

Claims

1, a kind of Double half axle vibrator is made up of semiaxis, flywheel, centrifugal shaft, drive, weighting distribution wheel, bearing block, guard shield and base plate, it is characterized in that:

Two-semiaxle (5) and (10) symmetric arrangement, bearing block (3) and (12) are fixed on the base plate (15) by bolt (16); The outer end of semiaxis (5) is equipped with drive (2), and the outer end of semiaxis (10) is equipped with weighting distribution wheel (13), and the inboard of semiaxis (5) and (10) is separately installed with flywheel (6) and (9); The two ends of centrifugal shaft (7) are weldingly fixed on respectively on flywheel (6) and (9); Two outer ends of two-semiaxle (5) and (10) are located drive (2) and weighting distribution wheel (13) by end cap (1) and (14) respectively; Guard shield (8) is weldingly fixed on the base plate (15); Base plate (15) is gone up also has screw (17).

2, Double half axle vibrator according to claim 1, the two ends that it is characterized in that centrifugal shaft (7) are by being bolted on two flywheels (6) and (9) off-centered position.