SU1516338A1 - Device for removing spring thrust rings - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to devices for disassembly and assembly operations. The purpose of the invention is to improve performance. They affect the handles 1 and 2 of the tool. The ratchet wheel 9 with the fork 8 and the sponge starts a rotational movement, the tool sponge disperses. The wedge-shaped parts of the jaws act on the inclined ends of the dismountable ring. Under the action of the generated force, one of the ends of the ring emerges from the groove of the hole and is directed to an inclined groove located on the working plane of the wedge. The dismountable ring is removed from the groove of the hole. 2 h.p.f. 5 il.

Description

from the ends of the ring comes out of the groove of the hole and is directed to an inclined groove located on the working

wedge plane. The dismountable ring is removed from the groove of the hole. 2 3.p.f-ly, 5 ill.

The invention relates to mechanical engineering, in particular to devices for disassembly and assembly operations.

The purpose of the invention is to improve the performance characteristics by improving the design of the tool jaws.

Figure 1 shows the tool, a General view, figure 2 is a section aa in figure 1; on fig.Z - view B in figure 1; Fig, 4 - section bb In fig.Z; FIG. 5 is a view of FIG. one..

The tool for dismounting the spring rings consists of handles 1 and 2, pivotally interconnected by a return spring 3 and a hinge 4, jaw holders 5 and 6, consisting of two parts - a fork 7 and a fork 8. The forks 7 and 8 are movable one relative to the other is mounted with the possibility of moving perpendicular to the axis of the hinge 4 and can be rotated around the axis of the hinge 4. The fork 7 is installed in the straight grooves of the cylindrical part of the handle 1, the fork 8 is in the slots of the rotation mechanism made in the form of a ratchet wheel 9. The lips 5 and 6 are working e plots 10. and 11 respectively. The work areas are wedges with working 12 and non-working 13 planes. The ribs of the 14 wedges are oppositely directed from the hinge axis. The working planes are located on the hinge axis side, on them inclined grooves 15 are made, passing through an angle formed by the end face 16 and the edge 14 of the wedges. Moreover, the working 12 and not, - working 13 wedge planes form an angle of 35-40. The angle of the grooves to the end 16 of the wedges is 8-10. The sponges 5 and 6 are installed in the rectangular grooves 17 of the forks 7 and 8 parallel to the axis of the hinge with the possibility of movement along this axis. Fixing the required length of the jaws is carried out with screws 18. The ratchet wheel 9 with the fork 8 installed in it is kinematically connected through a spring stop 19 and a spring 20, an axis 21 with a handle 2.

five

0

five

0

five

0

five

0

five

The tool works as follows.

Set the required depth of dismountable spring stop ring in the hole (on the shaft) to the required size H of the jaws 5 and 6 of the tool and fix them with screws 18. Set the required size of the H. forks 7 and 8 equal to half the diameter of the spring stop ring to be dismounted. The working wedge-shaped parts of the jaws 5 and 6 of the tool are inserted between the ends of the dismountable ring that is installed in the hole. The compressive force of the hand affects the handles 1 and 2 of the tool. At the same time, under the influence of the handle 2 on the ratchet wheel 9, through the spring stop 19, the ratchet wheel with the fork 8 and the sponge 6 installed in it starts the wrench (the sponge 5 and 6 of the tool disperse. The wedge-shaped working parts of the sponges 5 and -6 affect on oblique tords, is dismounted by the spring retaining ring. Under the effect of the force generated, one of the ends of the ring emerges from the groove of the hole and is directed to the inclined groove located on the working plane of the wedge.

Upon further cessation of the influence of the hand on the grips 1 and 2 of the tool, the spring 3 returns the grips to their original position. In this case, the ratchet mechanism works, i.e. the stop 19 disengages from the teeth of the ratchet wheel 9 by pressing the spring 20.

The ratchet wheel 9 under the action of braking forces created by the wedged working part of the sponge and removed by the spring stop ring remains stationary.

Then the wrist is again applied by force of the hand on the handles 1 and 2, and

the cycle is repeated until the spring support ring is completely removed from the groove, after which the tool, together with the ring to be removed, is removed from the hole.

 5 8

FIG. 2

In id

p y; 5 //

Y

u AR

fie.Ts

Type G

/ U

;five

90

Phie 5

Claims (3)

Claim 1.Instrument for dismantling spring thrust rings comprising pivotally interconnected _with the handle, the holder consisting of two parts movable relative to one another and mounted pivotally about a pivot axis, the first speed gear holder made as a ratchet wheel connected with one of the handles, sponges with a working section at the ends, installed in the holder, characterized by 15 s in that, in order to improve performance, one part of the holder is mounted on a ratchet wheel, the other on the handle is movable in black direction 20 to the axis of the hinge, the jaws are mounted in the holder parallel to the axis of the hinge with the ability to move along this axis, the working sections of the jaws are made in the form of wedges with working and non-working planes and ribs opposite to the axis of the hinge, working planes are located with sides of the hinge axis, inclined grooves are made on them, passing through an angle formed by the end face and edge of the wedge. 2 _{a The} tool according to claim 1, characterized in that the working and non-working planes form an angle of 35-40 °. 3. The tool according to claim 1, characterized by the fact that the angle of inclination of the groove to the end of the wedge is 8-10 °. Type G Fie 5 Fig.Z