SU985504A1 - Safety ball socket - Google Patents

Description

The invention relates to machine construction, in particular to safety clutches protecting drive units from damage.

The known ball fuse is a clutch containing two coaxially mounted and spring-loaded coupling halves connected by balls placed in their end nests, one of the coupling halves being made of two parts moving one relative to the other in the tangential direction and elastic elements 1 placed between them.

Closest to the proposed technical entity is a ball-type clutch containing coaxial and spring-loaded one to another driving and driven flared front coupling halves, as well as a damping device mounted on the driven half coupling and consisting of disks, an elastic element. and an adjusting nut and connected to the balls with the fingers mounted in the through holes of the flange 2.

A disadvantage of the known couplings is the inability to damp their own dynamic oscillations in the process of semi-coupling half-couplings under overload, which leads to an increase in the dynamic loads on the drive links.

The purpose of the invention is to reduce the dynamic loads on the drive link at the time of slipping.

In order to achieve the set point, in a ball safety clutch containing coaxial and spring-loaded one to another leading and all-round flange coupling halves, connected by balls placed in slots on the flange ends, and also a damping device mounted on the driven half coupling, consisting of

15 disks, an elastic element and an adjusting nut, the damper disks of the device are connected to the flange of the driven coupling half with the possibility of axial movement, and the flange of the drive coupling is placed between the friction disks that are pressed to it by a ynpyrijM element.

The discs are made of friction material.

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Figure 1 shows the clutch, a General view; in Fig.2 is a section aa in Fig.1.

Claims (2)

The coupling comprises a flange coupling half 1, on which a flange 30 of the coupling half is mounted. The leading coupling half 1 through the balls 3, placed in the holes 4 of the driven half coupling 2 and the wells 5, is connected to the driven coupling half 2. The holes 4 have plungers 6 and springs 7, the size of which is clamped by the nut 8 through the washer 9. The nut 8 is fixed with screws 10, and the axial movement of the driven coupling half 2 relative to the driving coupling half 1 is a locking ring 11. In the groove on the inner surface of the driven coupling half 2 an anti-friction ring is set to 12. The coupling damping device consists of at least two friction disks 13, rubber elastic element 14 and adjusting nut 15. Flange 16 of leading coupling half 1 is placed between the friction disks 13, pressed by elastic element 14, while the amount of compression is adjusted by nut 15. From axial rotation relative to the driven coupling half 2, the friction disks 13 are fixed by projections 1 7 entering the grooves 18 on the inner cylindrical surface of the driven half coupling 2 The coupling works as follows. The torque from the leading coupling half 1 through the holes 5 and the balls 3 is transmitted to the driven coupling half 2 and then through the pole. rnyu 19 follower machine. When overloaded, i.e. stop driven half coupling 2 ,. balls 3 are pushed out of holes 5, and the transfer of torque ceases until the next balls 3 enter holes 5. During the period between the balls 3 drops into holes 5, relative shocks occur as a result of shocks. lumuft 1 and 2. In the proposed coupling, compared with the known amplitude of these oscillations is reduced due to the energy absorption taking place in the friction zone of the flange 16 of the half-coupling 1 with friction discs 13. The latter reduces the dynamic loads on the drive link of the machines .. The proposed damping device It does not affect the overall stiffness of the drive and the coupling, as well as the torque that the coupling transmits in nominal mode of operation, as it is installed outside the power flow. This damping device only works when the clutch slips. In order for the coupling to work efficiently, the damping device must be adjusted for a torque less than the moment that the ball clutch transmits by coupling the balls to the profile holes. The proposed mufta, compared with the known ones, creates, during a slip, 1.5-2 times smaller dynamic loads on the drive units of the machines. Claim 1. Sharikov fuse Coupling containing coaxial and spring loaded one to another drive and driven flange coupling halves, connected by balls placed in slots at the ends of the flanges, and also a damping device mounted on the driven coupling half, consisting of disks, an elastic element and an adjusting nut, characterized in that, in order to reduce the dynamic loads on the drive links at the moment of slipping, the damping disks of the device are connected to the flange of the driven coupling half with the possibility of axially of movement, and is disposed between the coupling half flanets.veduschey friction discs pursed thereto elastic member. 2., Mufta, ta according to section 1, About tl and h ayusch and the fact that the disks are made of friction material. Sources of information taken into account during the examination 1. USSR Author's Certificate No., cl. F 16 D 7/06, 1978. 2. Authors certificate of the USSR 670753, cl. F 16 D 7/06, 1978 (prototype). .