SU1511104A1 - Device for pressing off inner rings of roller bearings - Google Patents

Abstract

The invention relates to mechanical engineering. The purpose of the invention is to increase reliability. As the device advances downwards, the grippers 5 abut against the end of the extruded ring 16. A gap is formed between the clamping ring 8 and the grips 5. Under the action of the deformation of flexible pipes g 4 and the force of the springs installed in the flange 6, the clamps 5 enter the ribs 20 into the groove of the pressed-out ring. When the housing 2 moves backwards, the clamping ring 8 locks the clamps 5 in the working position, and turning the screw 1 produces a bearing ring being pressed out. 4 il.

Description

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The invention relates to mechanical engineering, in particular to devices for sketching.

The purpose of the invention is to increase reliability by introducing self-aligning grippers and elements of their fixation in the working position into the design.

FIG. I shows the device at the moment of engagement of the grips on the end of the extruded ring, a longitudinal section; in fig. 2 - the same, after the engagement of the grippers into the groove of the pressed-out ring and their fixation with the clamping ring; in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows a section BB in FIG. 2

The device contains a traction screw 1, a housing 2 mounted for movement along the axis of the housing, placed ffa housing 2 with the possibility of limited movement along the axis of the screw 1 to the yoke 3 with the flexible rods 4 attached to it 4 with the grips 5, the locking element of the grippers, made in view of a flange 6 rigidly mounted on the body 2 with the axis I of the screw I fixed by the legs 7 and a clamping ring 8 associated with them with a conical working surface 9 and a stop 10 for engagement with the grippers 5. The tail screw I has a head 11 s at the outer end tverstiem through which the handle 12 and at the inner end - scharik 13 which abuts the sleeve 14 fits over the end of the shaft 15. The shaft 15 is extruded ring 16 installed roller bearing. The ring 16 has a groove 17 on the outside. The flexible rods 4 are spring-loaded to the axis of the traction screw I. The traverse 3 is spring-loaded to the flange by springs 18. The grippers 5 are circular segments having an outside conical surface 19 that interact with the conical working surface 9 of the clamping ring 8 , and shoulders 20 having tapered surfaces 21 for engaging with the end of a pressed-out ring.

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The device works as follows. In the initial position, the grippers 5 under the action of the springs 18 are pressed to the clamping ring 8. Install the device

on the end of the shaft and mix it up to the stop of the grippers 5 at the ends of the pressed-out ring 16 with the tapered surface 21 of the flange 20. With the further movement of the clamping ring 8 down between the tapered working surface 9 of the ring 8 and the tapered surface 19 of the grippers 5, a gap is formed. Under the action of the deformation of the flexible tg 4 and the force transmitted by the springs 18, the clamps 5 slide off the end of the pressed-out ring and the stroke t of the ribs 20 into the groove 17. Then the body 2 is fed back, the clamped ring 8 moves in the direction of the claws 5 with a conical working surface 9 it comes into contact with the conical surface of 19 grips and fixes the grippers 5 in the working position. Then the screwing screw I is screwed in, the housing 2 is pressed up and the clamping ring 8 mixes with the grippers 5 fixed by it, which press out the ring 16

5 bearing yka.

Claims (1)

; Invention Formula A device for extrusion of inner rings of roller bearings containing a traction screw, a traverse with a gamble fixed on it with grippers spring-loaded to the axis of the traction screw, and an element for fixing grippers in a working position, characterized in it is equipped with a casing mounted with the possibility of mixing 5 along the axis — a screw; ti are made flexible; the fixing element of the grippers is made in the form of a rack fixed to the flange case with racks parallel to the axis of the screw and associated with it a clamping 0 rings with a conical working surface and an emphasis to interact with the grip, and the traverse is placed on the body with the possibility of limited mixing along the axis of the screw and spring-loaded to the flange. Phage. 2 Thebes L