CN2034639U

CN2034639U - Multifunctional universal ball bearing

Info

Publication number: CN2034639U
Application number: CN 88204548
Authority: CN
Inventors: 周永立
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-04-29
Filing date: 1988-04-29
Publication date: 1989-03-22

Abstract

The utility model discloses a multifunctional universal ball bearing which is a new bearing, realizing various specified movements via a large ball and a plurality of small balls. The multifunctional universal ball bearing can be used for replacing common rollers, casters and simultaneously replacing common rolling bearings used at present except needle bearings. The utility model has the advantages of simple structure, labor saving, simple fabrication, low cot, multiple functions, wide range of use, steady and convenient movement, and the multifunctional universal ball bearing can be used in various transmission mechanisms and bearing movement mechanisms corresponding to the multifunctional universal ball bearing and the mechanisms needing to complete straight, rotary, curved and curved surface movements. When a plurality of single multifunctional universal ball bearings are formed into a group, the range of use is further enlarged.

Description

Multifunctional universal ball bearing

The utility model belongs to a kind of novel bearing.It realizes the various motions of stipulating with the mutual rolling of a big ball and some beads, names to be multifunctional universal rolling ball-bearing (hereinafter to be referred as ball-joint).It is a kind of transmission device that transmits straight line, curve and non-plane motion.

Existing rolling bearing has 2 degrees of freedom at most during rolling, so using scope is restricted, and dissimilar rolling bearings, and its function should not be general each other; Ball-joint has 5 degrees of freedom when rolling, using scope is big, installs simply, and installation precision requires to be lower than rolling bearing, and ball-joint can be respectively or play the effect of all rolling bearings except that needle bearing simultaneously, and its function is more than present rolling bearing.Existing castor or roller must have axle, and to form castor group or roller group, castor or roller then need add steering equipment moving along shaft axis and when the vertical line around shaft axis rotatablely moves, will being restricted constraint in addition for finishing these two kinds of motions simultaneously; Ball-joint need not wheel shaft when rolling, when finishing identical rolling action with castor or roller, also can finish the motion of various ways such as the rolling of any direction and the rotation of rolling in plane or curved surface.

As mentioned above, the purpose of this utility model is that a kind of transmission device that improves existing rolling bearing and castor group, roller group will be provided, and it can make motion simplify, and function increases, and versatility increases.

It is simple that the utility model has a compact structure than existing rolling bearing and castor group, roller group, and function is many, operate steadily, and low cost of manufacture, adaptability is strong, and is of many uses, the advantage that surface friction drag is little.Its structure is as shown in the figure: by a large diameter ball (2), and ball of some minor diameters (5) and ball-joint seat (4), ball-joint lid (1) is formed.Big under external force ball rolls along the required track that moves, and is promoting some beads simultaneously and is rolling on ball-joint seat stress surface, when bead rolls out the stress surface of ball-joint seat, enters in the bead storage storehouse (3).Meanwhile, other bead is then by constantly entering in the storage storehouse in the corresponding stress surface of ball-joint seat, thereby remains the bead of sufficient amount in the ball-joint seat, and then guarantees the ball-joint running of rolling normally.Simultaneously, can between big ball and ball-joint lid, add seal arrangement according to the operating mode needs, with dustproof and anti-leak oiling agent.

The utility model ball-joint, among the various driving mechanisms that can be used for adapting, the load-bearing motion with it:

1, the big ball of ball-joint and axle be when being connected as a single entity, and ball-joint can be respectively or played the effect of all the dissimilar rolling bearings except that needle bearing simultaneously; As required, turn round under the situation that the ball-joint center line that is contained in a two ends and shaft centre line are not overlapped in less than 90 ° of scopes; When ball-joint is loaded on when spool middle, can make shaft centre line and ball-joint center line in less than 90 ° of scopes, do the oscillating motion of rolling motion or rolling under the not coincidence situation.

2, when the big ball of ball-joint fuses with rod member or various rotating component respectively, ball-joint is guaranteeing that rod member and various movement parts not when self axis moves, also can satisfy it at rotation under the rolling friction situation and the rotary oscillation in the circular cone scope.

3, ball-joint can be fixed on below the sundries, as the spin instead of casters, carries out the rolling or the rotation of any direction.

4, ball-joint can in groups, in a row be used for moving of weight, substitutes the rolling bar of fortune weight commonly used, and mode that can rolling friction nimble on the spot, rotate effortlessly and turn.

5, when three ball-joints volumes are one group, can on any curved surface, carry out the load-bearing rolling motion.

6, when the big ball of ball-joint is in that upwards state uses, object placed on it can be respectively or is carried out straight line, rotation and the turning motion of rolling friction form simultaneously.As: the production line line belt that is used to carry component.

7, ball-joint can be used as the rolling bearing that needs multifreedom motion, turns to rolling bearing as vehicle front, and the heart of railroad vehicle bogie holds and side bearing.

8, ball-joint also can be used for finishing simultaneously in straight line, curve rolling and the mechanism that rotatablely moves of rolling, the secondary and rolling revolving pair as rolling spherical.As application in tracking and monitoring, the remote sensing and control equipment, and the application in the joint of mechanism hand, robot.

Manufacturing material of the present utility model according to the applying working condition difference, can be selected hard metal and hard non-metallic material for use.Different according to selection and physical dimension, surface treatment etc., the permission load of single ball-joint is also different with the highest running speed of big ball, thereby can adapt to different operating modes and environment.

Claims

1, a kind of multifunctional universal rolling ball-bearing, it is characterized in that forming by some beads (5) and 1 big ball (2), ball-joint seat (4), ball-joint lid (1), bead storage storehouse (3), under external force, mutual rolling by big ball and bead realizes the mechanism of the various motions of stipulating, its ball-joint lid and ball-joint seat have guaranteed the correlation and the position of big ball and bead.

2, multifunctional universal rolling ball-bearing according to claim 1 is characterized in that, ball-joint can use separately, also can form the ball-joint group arbitrarily and use, and big ball can use on the orientation arbitrarily.

3, multifunctional universal rolling ball-bearing according to claim 1 is characterized in that, big ball can be combined into one with axle, bar and other movement parts, forms the mechanism and the system of rolling friction campaign.

4, multifunctional universal rolling ball-bearing according to claim 1 is characterized in that, can use and do or moistening lubrication prescription by the difference of operating conditions, adds seal arrangement simultaneously between big ball and ball-joint lid.