JPS58128550A - Apparatus for locking and varying power transmitting characteristics of syncline face cycloidal gear mechanism - Google Patents

Abstract

PURPOSE:To improve the reverse power transmitting characteristics of the titled gear mechanism and to lock the gears at the time of stopping operation of the mechanism, by shifting the center of oscillation of the titled gear mechanism. CONSTITUTION:The titled gears N2, N3 are supported in a freely rotatable manner on an inclined shaft 1 serving as a drive shaft. The gear N2 is kept in mesh with a fixed cycloidal gear N1 while the gear N3 is kept in mesh with an output cycloidal gear N4. When the driving force is extinguished, the center O of the oscillation comes on a maximum intermeshing center line Y-Y, and the gears are locked. In case that reverse transmission of power is required at the time of stopping the gear mechanism, the inclined shaft 1 is moved back in a direction extending the arm length, i.e., the distance between the center O of oscillation and the center line Y-Y.

Description

[Detailed description of the invention] A pair of facing gears Ns (2) N4 (4)
In an internal medicine bacterial seeding gear mechanism (hereinafter abbreviated as a sinkle gear) that seeds bacteria by rotation of a diagonal shaft (1) between which a bacterial seeding gear N2 and N3 (3) is attached via a bearing, a rotating surface gear N1 (2) is used. ) In the case of a fixed speed reducer, the rotation ratio between the oblique shaft (1) and the rotating surface gear N4 (4) is the mutually meshing surface gear NI N
, and the difference in the number of teeth of N5N4. That is, reduction ratio h=
1-”.

Since the 2N4 sinkle gear does not use a shifted tooth profile, the distance between the imaginary line Y-Y connecting the center point of the pressure contact surface of the maximum meshing tooth that occurs at the opposite symmetrical position of the axis X-X and the swing center 0 of the oblique shaft ( (hereinafter referred to as arm length) is determined by the rotation ratio. That is, as the rotation ratio increases, the arm lengths become shorter, and when they are infinite, they match.

Since the sinkle gear is a reaction gear mechanism (REACTION GEAR 8) different from the internal differential gear mechanism, the arm length is longer than that of the differential type, so it is efficient. That is, the locking property is small and the reverse transmission (speed increase) characteristics are good. However, this arm length is easily deviated due to machining errors, deformation of the gears, increased bearing play, etc. Particularly when the rotation ratio is high, this tendency becomes more pronounced and the locking property tends to increase.

The present invention utilizes this characteristic of the sinkle gear to improve reverse transmission characteristics by moving the center of oscillation, or conversely, to lock the gears when stopped.

Examples thereof will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a sinkle gear reducer in which the low speed shaft (5) is locked when stopped. In this case, the oblique shaft (1) compresses and moves the coil spring (2) to the strike and par positions by the rotation force of the drive shaft a) using a rotation-to-thrust converter using claws or balls.

A bearing and a bearing sleeve (6) 6E are fixed to the oblique shaft (1), and are moved together with the oblique shaft in the hole of the seed gear (3), so the center of oscillation O moves to the set point during driving. Sinkle gears mesh in the correct position and operate efficiently.

When the driving force 0X disappears, the rotation-thrust converter is restored by the coil spring (II) Vc, and the swing center 0 coincides with the maximum engagement center line Y-Y and stops. In this case, the low speed axis (5)
It is not possible to change the bacterial species from the bacterial species gear (3). In other words, each face gear has a gear lock.In addition, if a friction plate (9) is attached to the rotation-thrust converter (8), the inertial rotation of the input can be rapidly braked, and the output can be further locked. It can be ensured. By applying the surface structure to the output when stopped, special fixing devices and braking mechanisms can be omitted.

In addition, contrary to this embodiment, in applications where reverse transmission is required at the time of conflict, for example, when simultaneous driving is performed with a high reduction ratio double gear reducer, all machines are affected by changes in input rotation or stoppage. This may cause damage to the mechanism.In such a case, contrary to this embodiment, it is possible to improve the reverse transmission characteristics at the time of stopping.It is possible to improve the reverse transmission characteristics at the time of stopping. All you have to do is to restore the oblique shaft in the direction in which the arm is lengthened by 1. In either case, when the pivot center 0 is outside the normal position, the mesh of the face gear will be a P-linear mesh, but the sinkle gear Now, let's use Uni 7 and use a cross-tooth profile to press the meshing tooth t'
H: 0X can be effectively used for H staining, low torque, speeding up efficiency, or 100,000 torque tablet applications.

[Brief explanation of the drawing]

FIG. 1 is a central cross-sectional view of an embodiment in which a screw mechanism is applied to a sinkle gear reducer at the maximum engagement portion during driving. 1... Oblique shaft 2... Fixed plane gear N1 3... Bacterial species gear Nz Ns 4... Driven plane gear N4 5... Low speed shaft 6... Oblique shaft sound receiver 7... Housing 8 ... Rotation-thrust converter 9 ... Friction plate 10 ... Coil spring 11 ... Input shaft 0 ... Swing center X-X ... Center axis Y-Y ... Most dog meshing part center line

Claims (2)

[Claims] (1) By moving the bearing fixedly attached to the oblique shaft (1) and the bearing sleeve (6) in the axial direction, the oscillation center 0 of the strain gear Nz Ns (3) and each face gear can be adjusted. The transmission characteristics can be changed or the reverse transmission can be locked by adjusting or matching the distance with the virtual straight line Y-Y connecting the tooth contact center point of the maximum meshing part that occurs on the opposite side of the central axis X-X. Internal medicine bacterial species gear mechanism. (2) Automatic transmission characteristic change and locking of the internal medicine seed gear mechanism according to claim 1, in which a rotation-thrust conversion mechanism is provided on the input side of the oblique shaft (1) and the other end is pressurized with an elastic body. Device.