Balancer

a balancer and balance technology, applied in the field of balancers, can solve the problems of reducing the grinding precision, affecting the smoothness of the rotary body, so as to facilitate the movement of the weight, reduce the vibration caused by the impact, and effectively suppress the effect of the vibration
US20080060472A1Inactive Publication Date: 2008-03-13AKAZAWA MACHINE
5 Cites 7 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
AKAZAWA MACHINE
Publication Date
2008-03-13
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A weight 4 which is held by a weight holder 3 in a balancer has a pressing face 4b′ which is pressed against a guide face 12a provided along the circumferential direction of rotation of the weight holder 3 by centrifugal force generated by rotation of a rotary body. When the rotary body rotates, the weight 4 which is pressed against the guide face 12a via the pressing face 4b′ changes its position relative to the rotary body in the circumferential direction of rotation, whereby the weight 4 is disposed in a position in which it suppresses whirling motion of the rotary body. The guide face 12a and pressing face 4b′ are inclined relative to the axial direction of rotation so as to tend to outward side in the diametrical direction of rotation as tending to one side in the axial direction of rotation. The weight 4 is pressed against a receiving portion 7a′ by component of the centrifugal force, in which the component acts along the guide face 12a and pressing face 4b′.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present invention relates to a balancer for suppressing whirling motion of a rotary body, such as a spindle of a machine tool, a tool chuck for holding a tool which is attached to the spindle for performing cutting or grinding, a vehicle axle, a crankshaft of an engine and others. BACKGROUND ART

[0002] A grinding wheel disclosed in Japanese Patent Laid-Open Publication No. H6-198564 is provided with a balancer mechanism to compensate for unbalance in weight distribution around its rotational axis. More specifically, this grinding wheel has a storage chamber and weights which are stored in the storage chamber. The inner surface of the storage chamber has a guide face which extends along the circumferential direction of rotation and wall faces disposed in one and the other of the axial directions. Each weight has a pressing face which is pressed against the guide face by means of centrifugal force generated by rotation of the grinding wheel. When the grindin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More