CN85202685U

CN85202685U - Large flexibility torsional spring-damping coupling as high power transmission mechanism

Info

Publication number: CN85202685U
Application number: CN 85202685
Authority: CN
Inventors: 雷良榆
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-07-04
Filing date: 1985-07-04
Publication date: 1986-04-23

Abstract

The utility model relates to a spring coupling with high-power vibration damping and large-deflection torsion. An elastic element which is composed of more than one torsion spring is sheathed between two opposite half coupling joints. The connectors of the both ends of the spring are respectively arranged on the grooves of the half coupling joints, are clamped by a positioning clamping ring, and are fixed by fastening screws. The maximum torsion angle of the coupling can exceed 360 DEG. The utility model has the advantages of simple structure, high reliability and convenient installation, being suitable for various-purpose rotation with medium and small power loads and frequent angular speed variation. The utility model has no need of servicing and lubricating, works in the higher temperature and dust environment, and permits installation errors of the radial, axial and opposite shaft line angle.

Description

Large flexibility torsional spring-damping coupling as high power transmission mechanism

The utility model belongs to the improvement of coupler structure.

The kind of coupling is a lot, and as the hose type coupling, the manufacture method of this coupling is to mill into coil spring shape with in the middle of the metal tube in elastic coupling flexible coupling, and this coupler structure is simple, but transmitting torque is little, and also little of amount of deflection can be used for general small-power transmission.The coupling that Russian Patent No. 432308 (1972,5) provides, it is with clockwork spring two half-couplinves to be connected, with the limit stoper location, so complex structure, poor reliability; Because the rotating center mass unbalance of clockwork spring produces vibration, be unsuitable for the high speed transmission, and transmitting torque is little, also can not be used for the high power power transmission.

The purpose of this utility model is made exactly and a kind ofly can be applied to load and angular velocity often changes, vibration damping or have that big quality system, starting are frequent, aspects such as transmission that speed governing or rotating speed require even and overload protection have a bigger coupling that reverses amount of deflection.

The utility model by one or more is had certain in the torsion spring that changes vertically of footpath or middle footpath constitute elastic element by the arrangement mode of multi-head spiral, if the combination of a plurality of springs, mode can be several spring silks coileds side by side, also can be after the spring silk is scratched into spring respectively, one by one within spring of precession, and be arranged in the multi-head spiral form.To be set with by the elastic element two ends that torsion spring constitutes between opposed two half-couplinves then, concentric with axle, the end-fitting of bull spring will be put in the groove of each half-coupling, pushes down with the location pressure ring that fastening screw trip bolt is fixing promptly can be made.

Fig. 1 a is rigidity torsion spring coupling such as large deflection

Fig. 1 b is this coupling cross section

Fig. 2 becomes rigidity torsion spring coupling for large deflection

Fig. 1 a, Fig. 1 b be a number of springs be 2 etc. rigidity torsion spring coupling.Torsion spring (4) is set between opposed two half-couplinves (1), and the two ends of torsion spring (4) is placed on respectively in the groove (5) of half-coupling, and fastening location pressure ring (2) is fixing with fastening screw trip bolt (3).

Fig. 2 and Fig. 1 a, the structural similarity of b, but use conical camber spring (4) to be sleeved between two half-couplinves, so be the shaft coupling that becomes rigidity, its characteristic is non-linear.

The torsion spring number is generally got more than one.If only be not easy equilibrium centrifugation inertial force, can obtain complete equilibrium more than two with a spring.Simultaneously, transmitting torque is directly proportional with number springs, and spring increases the number of active coils that may reduce each spring.The elastic torsion angle is reduced.

This kind coupling can have bigger radially, axially and install during the offset deviation of angle.Must not maintain lubricatedly, can in higher temperature and dust environment, use.

The inventor did the site trial that the relative torsional angle degree changes that is in operation of this kind coupling, and common three spring assemblies can reach 100-180 °, and two spring assemblies can reach 180-270 °, and the maximum flexibility windup-degree can be above 360 °.

During the shaft coupling of making of the utility model is all-purpose, the transmission that often changes of small-power load and angular speed. And can play a part significantly vibration damping, mitigation impact, uniform angular velocity, overload protection.

Claims

1, a kind of large deflection torsion spring coupling of being made up of two half-couplinves (1), location pressure ring (2) and fastening screw trip bolt (3) is characterized in that the elastic element that socket is made of an above torsion spring (4) between two half-couplinves (1).

2, according to the said large deflection torsion spring of claim 1 coupling, it is characterized in that torsion spring can be the spring that fixing middle footpath is arranged, also can be the volute spring that middle footpath changes vertically.

3, according to claim 1,2 said large deflection torsion spring coupling, it is characterized in that when adopting many torsion springs, can being several spring silks coileds side by side, also can be single spring, one by one in spring of precession and be arranged in the bull form.

4, according to each said large deflection torsion spring coupling in the claim 1,2,3, it is characterized in that said both ends of the spring joint is placed on respectively in the groove of half-coupling (5), be fixed with location pressure ring (2).