CN201466864U

CN201466864U - Long-shaft double-support vibrating motor

Info

Publication number: CN201466864U
Application number: CN2009200922140U
Authority: CN
Inventors: 廖臻培; 郭亚东
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-27
Filing date: 2009-07-27
Publication date: 2010-05-12
Anticipated expiration: 2019-07-27

Abstract

The utility model provides a long-shaft double-support vibrating motor, which is characterized in that the prior long-shaft vibrating motor is improved through symmetrically arranging a pair of supporting bearings at the two end parts of a long rotating shaft, thereby omitting a plurality of supports; besides, a pair of eccentric blocks are symmetrically arranged on the two sides of each supporting bearing; floating sleeves are respectively arranged on the shafts on the two sides of a rotor and are arranged in a casing in a supporting manner; and the motor and the floating sleeve adopt flame-proof structures. The utility model has the advantages of simple structure, easy manufacture and assembly, reduced load of the casing, steady control of the routability of the rotating shaft, longer service life of the bearing, improved excitation effect, explosion suppression and the like.

Description

Major axis two supports vibrating motor

Technical field

The utility model belongs to the vibrating motor field, relates to a kind of major axis two and supports vibrating motor.

Background technology

Vibrating motor has strict specification requirement along with the difference of field of employment to motor.As the oil well vibrating screen, mix mud in order to shake, with mud cools rig drill bit, the concentration of mud, viscosity etc. are had strict standard code in the drilling process, the exciting force of vibrating motor, amplitude, acceleration etc. all there are clear and definite specification requirement, could adapt to oil well work.Usually the long shaft vibration motor that adopts is directly installed on the vibration sieve nest, save middle the gap bridge than two minor axis vibrating motors, vibrating effect increases, but owing to adopt 4-6 to support, the strong point increases, and causes many fulcrums decentraction easily more, inner discontinuity equalization, the casing load is heavy, and heating is serious, problems such as process and assemble difficulty.

The utility model content

The designer is in the research manufacturing practice activity of being engaged in motor for many years, find that existing major axis vibrating motor exists certain defective in application, through investigation and exploration repeatedly, purpose is to provide a kind of major axis two to support vibrating motor, can not only overcome existing major axis four and support the existing above-mentioned defective of vibrating motor, and can also adapt to the use of inflammable and explosive place.

Technical solution adopted in the utility model is that a kind of major axis two of design supports vibrating motor, its structure comprises: the major axis of vibrating motor, spring bearing, eccentric block, at the both ends of major axis one secondary spring bearing is set respectively, be installed on the bearing pedestal, on the axle of the both sides of every secondary spring bearing, be symmetrical arranged a pair of eccentric block, on the axle of rotor both sides, install floating bushing respectively.

Wherein, floating bushing: comprise the axle sleeve that cooperates with the between centers crack, ball bearing and overcoat that axle sleeve is outer.

Use in order to adapt to inflammable and explosive place, the motor of vibrating motor adopts flameproof motor, and the overcoat of floating bushing also adopts the flame-proof type overcoat.

The utility model is taked above technical scheme and measure, existing major axis four is supported vibrating motor to be improved, change two spring bearings into by the many spring bearings of 4-6, change eccentric block into both sides that a pair of eccentric block symmetry is installed in two spring bearings, not only reduced spring bearing, the centrifugal force stack that a pair of eccentric block produces and equal to bearing centre moment, can not produce bearing stress concentration point, bearing prolongs useful life, and for the shaft strength balance, exciting force is effectively brought into play, and the exciting effect improves; Spring bearing and eccentric block are located at outside the casing, and the casing internal structure is simplified, and the centrifugal force that eccentric block produces directly affacts on the sieve nest fully, and casing does not bear applied stress, and bearing heating alleviates, and temperature reduces in the casing, and bearing prolongs useful life; How secondary spring bearing in the middle of long rotating shaft two supporting constructions have been cancelled, in generation, is to be provided with the floating bushing supplemental support in the rotor both sides, the axle with axle sleeve between appropriate gap cooperate, can play stable control major axis winding degree metamorphosis, and guarantee that motor stator and rotor air gap reaches specification requirement, and guarantee that motor normally moves, can utilize the advantage of performance two spring bearing structures again better, can also enlarge the field of employment, be fit to inflammable and explosive place and use.

This major axis two of the present utility model supports vibrating motor, through advanced development and installation trial run, show and have the assembling that is easy to make simple in structure, the casing load alleviates, rotating shaft winding degree control stabilization, bearing prolongs useful life, remarkable advantages such as raising of exciting effect and flame proof, performance is good, reaches the design ideal requirement.

Description of drawings

Fig. 1 represents that the utility model major axis two supports vibrating motor symmetrical structure schematic diagram.

Embodiment

Reach embodiment in conjunction with the accompanying drawings, further specify the concrete structure that the utility model major axis two supports vibrating motor, its feature and advantage are clearer.

The utility model major axis two supports the embodiment 1 of vibrating motor, and referring to Fig. 1, its structure comprises: the major axis 3 of vibrating motor, spring bearing 2, eccentric block 1, floating bushing 4, casing 5, rotor 6, two secondary spring bearings 2 symmetry respectively are laid on the bearing pedestal at the both ends of major axis 3 outside the casing, are symmetrical arranged a pair of eccentric block 1.1,1.2 on two side shafts of every secondary spring bearing 2, on the axle of rotor 6 both sides, floating bushing 4 (among the figure show floating bushing 4.1) is set respectively, is located in the casing 5.Wherein floating bushing 4 is by axle sleeve 4.01, and ball bearing 4.02 that axle sleeve is outer and overcoat 4.03 constitute, and matched in clearance between axle sleeve 4.01 and the major axis 3 is used key connecting.

The utility model major axis two supports the embodiment 2 of vibrating motor, its structure comprises: in the structure of embodiment 1, wherein the motor (not shown) of vibrating motor utilizes flameproof motor, and the overcoat 4.03 of floating bushing 4 adopts the flame-proof type overcoat, utilizes existing explosion separation structure.

Claims

1. a major axis two supports vibrating motor, the major axis of involving vibrations motor, spring bearing, eccentric block, it is characterized in that one secondary spring bearing being set respectively at the both ends of major axis, be installed on the bearing pedestal, on the axle of the both sides of every secondary spring bearing, be symmetrical arranged a pair of eccentric block, on the axle of rotor both sides, install floating bushing respectively.

2. major axis two as claimed in claim 1 supports vibrating motor, it is characterized in that described floating bushing comprises the axle sleeve that cooperates with the between centers crack, ball bearing and overcoat that axle sleeve is outer.

3. the major axis two as claim 1 or 2 supports vibrating motor, it is characterized in that the motor of described vibrating motor adopts flameproof motor, and the overcoat of described floating bushing adopts the flame-proof type overcoat.