CN2314144Y - Elastic damping universal joint - Google Patents

Abstract

The utility model relates to an elastic damping universal joint, which is composed of an axial radial conversion damper and a universal ball damper. The rotating part of an axial radial converter is provided with two cambered surface bodies and a spring sheathed outside the axial radial converter, and the hollow part is composed of a rotating shaft. The universal ball damper is provided with a cambered surface body casing, the inner side of the cambered surface body casing is a spherical shape in which a sphere is arranged, and a spring is sheathed outside the cambered surface body. The two parts can be used alone or together according to the working condition requirement. The new style universal joint can be stopped at any required position in the space optionally. The utility model has the advantages of simple structure, low cost, and easy fabrication. The utility model can be widely used in various automatic production lines, medical mechanisms, various test benches, vehicle lighting, automobile rear view mirrors, computer office file folders, band equipment, etc.

Description

Elastic damping formula universal joint

In mechanical motion, often adopt spring to realize vibration damping and mechanical damping.But because the rebounding force of spring and the irregular variation of direction of power, the effect of damping and damping is also imperfect.Can be very uncomfortable as the people who on Motor Vehicle, takes because of vibration.

Existing universal joint is good in the position and the performance in the mechanical transmission of flexible conversion workpiece.In industrial trade, there is the utmost point to use widely.But require can arbitrarily stop on a certain orientation under the constant operating mode in mechanical strength and stiffness, and the aspects such as distance and position of hack and adjustment people and target, existing universal joint exists not enough.

Task of the present utility model is to overcome the deficiencies in the prior art, remedies the shortcoming of elastic damping mechanical damping and universal joint, makes axial elastic damper can eliminate springback power, reduces axial elasticity compression variation frequency significantly, improves stationary performance.

The utility model realizes by following scheme,

The utility model is made up of two-part, promptly axial conversion damper and univesal sphere damper, and the rotating part of axial-radial transducer has two contour bodies, and cross section is a semicircular arc, and its inner arc is for lacking semicircle, and outer arc is a semicircle, two circles are not or not the same center of circle.Two contour bodies are integrated, and are hollow circular cylinder, and its hollow space is the connection working hole of rotating shaft, two cylindrical springs, and the diameter of its spring eye is slightly less than the diameter of hollow circular cylinder.On cylindrical body, spring produces inside tight Shu Li two cambered surfaces is tightened with spring housing.Two arcs of hollow hub and the radius of body inner arc radius and rotating shaft equates.Because be to lack circle, therefore, the power of inwardly tightening of spring is tightened rotating shaft by arc body.Its big I of tightening power is adjusted by the diameter that changes spring according to need of work.

Another part is the universal joint part, just changes the rotating shaft cylindrical body into spheroid on its principle, and the tight Shu Li by spring will be used for the ball of universal rotating shaft and tighten, fixing contour body, and the axostylus axostyle of contour body obvolvent and spheroid just can rotate.The elasticity power of tightening transfers frictional force to.People can the application of force change direction, stop the application of force after, frictional force stops on the needed spatial position working appliance.Axially and radially damper portions can vertically lift and axially transposition, and universal joint is partly done universal transposition rotation.Ball journal bar and rotating shaft bar are made tubulose, power line is passed from pipe be directed on the working appliance, as micro motor, electric consumer or instruments such as lighting burner.

The utility model is owing to can increase substantially damping property according to by changing the size that spring diameter designs axial friction.Therefore, can be at bicycle, motorcycle, Motor Vehicle vibration damping aspect is widely used.While is the transformed space position arbitrarily, need not any other locking device, and can be with power supply lead wire on working appliance.

Fig. 1 is the utility model front section view;

Fig. 2 is another embodiment view of the utility model;

A most preferred embodiment of the present utility model, as figure, the elastic damping universal joint is made up of two-part, the rotating part of axial-radial transducer has two contour bodies 6, cross section is a semicircular arc, and its inner arc is for lacking semicircle, and outer arc is a semicircle, two circles are not or not the same center of circle, two arcs and body is integrated are hollow circular cylinder, and its hollow space is the connection working hole of rotating shaft 9, two cylindrical springs 5, the diameter of its spring eye is slightly less than the diameter of hollow circular cylinder.On cylindrical body, spring produces inside tight Shu Li two cambered surfaces is tightened with spring housing.Two the contour body inner arc radiuses of hollow hub and the radius of rotating shaft equate, in the two ends of contour body machine spring stop collar 4 and shelves cover 8 is housed, and be fixing by retainingf key 7.Rotating shaft 9 is loaded in the hollow round column body that two contour bodies are integrated.One end head is contained on the cylindrical body outer wall of rectangular transducer with it by cylindrical sleeves, and an end of rotating shaft 10 is loaded in the contour body 3 of universal joint, in the ball-shaped hollow article of contour body 3 spheroid 2 is housed spring 11 is housed outside contour body.

During use, the application of force changes direction, stop the application of force after, frictional force stops on the needed spatial position working appliance.Axially and radially damper portions can vertically lift and axially transposition, and universal joint is partly done universal transposition and rotated.

Another embodiment of the present utility model, structure and the identical directional post 12 of commutator shown in Figure 1 as shown in Figure 2, two arcs and body and be with spring outward, it is covered with thick wall shell, be equipped with between 13 liang of commutators of damping spring in the top and bottom of housing and it fused, on connecting wall, be fixed with force application mechanism 15 by link arm.

Claims (1)

1. elastic damping formula universal joint, form by axial-radial conversion damper and univesal sphere damper two-part, it is characterized in that: the rotating part of axial-radial transducer has two contour bodies, cross section is a semicircular arc, its inner arc is for lacking semicircle, outer arc is a semicircle, and two circular arcs are not or not the same center of circle.Two contour bodies are integrated, and are hollow circular cylinder, and its hollow space is the connection working hole of rotating shaft, two cylindrical springs, and the diameter of its spring eye is slightly less than the diameter of hollow circular cylinder.Spring housing on cylindrical body, is equipped with rotating shaft in the hollow hub, two contour body inner arc radiuses of hollow hub equate with the radius of rotating shaft.Radially rotating shaft one termination of transducer is contained on the cylindrical body outer wall of rectangular transducer with it by cylindrical sleeves, and an end of rotating shaft commutator is loaded in the contour body of universal joint, in the ball-shaped hollow article of contour body spheroid is housed, and spring is housed outside contour body.

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