SU1247225A1 - Mounting support - Google Patents

Description

The invention relates to mechanical engineering, and can be used in devices for installation and fastening of machine cores.

The purpose of the invention is to increase the safety of work.

FIG. 1 shows the mounting support, general view; in fig. 2 — node I in FIG. one; in fig. 3 - diagram of the installation of the machine on the mounting support; in fig. 4 — node II in FIG. 3; in fig. 5 is a section A-A in FIG. four.

The mounting support consists of a cup 1, in the groove of which on axis 2 a ratchet pawl 3 is mounted, pressed against the rim of the cup by a spring 4. The nut is kept in a cup, a nut 5, on the surface of which the fixings b are made and the guide groove 7, ь which enters nose 8 locking screw 9, stirred in a glass. The screw 10 is screwed into the nut and provided with a restrictive shoulder 11. The screw has a thread 12, grooves 13 and a central hole 14 for insertion of the locking rod 15. At the screw bore a support washer 16 is mounted on the thrust bearing, and in a groove made in the body of the screw 10, Lock iggift 17 is located, interacting with a lock rod 15, inserted into the central hole of the screw. A screwdriver is inserted into the grooves 13 of the screw — a nozzle 18 with a captive threaded sleeve 19. A screwdriver — the nozzle 18 is made in the form of a bolt equipped with a guide rod 20, inlet and 1, into the central hole 14 of screw W, and a antenna 21. groove 13 vipta 10. Supports fasten to the machine frame | Ike 22.

Assembly support works as follows.

Before fixing the support on the sections of the skeleton; , the assembly of the screw 10 is unscrewed from the nut 5 to the full height, i.e. up to the moment when the collar 11 of the screw reaches the bottom of the undercut of the nut 5 (in Fig. 1 it is shown with a dotted line). In this position, the supports are fastened in the holes of the core with nuts 22, which are screwed onto the threaded portion 12 of the screw 10 (see Fig. 3). The sections with the supports attached to them are installed on the floor of the workshop, which has slopes and irregularities exceeding the allowable values required for accurate installation of the core in a predetermined position. If during visual inspection it turns out that the height of the screw 10 is insufficient for a number of supports and the bottom of their glasses 1 does not touch the floor, then the locking rod 15 is inserted into the central hole 14 of the screw 10 until it stops in the bottom of the glass 1, and moves the glass 1 relative to fixed nut 5 until the bottom of the glass touches the floor. A snoring dog 3 does not prevent the movement of glass 1 down (in the direction shown

in fig. 1 with an arrow) and closes automatically in the locking grooves b of the nut 5 when moving in the opposite direction. The locking screw 9, sliding along the guide groove 7, prevents the nut 5 from moving in the radial direction.

This pre-adjustment supports completed. Implementing it in a short period of time and using safe methods is provided by placing the nut 5 in glass 1 with the possibility of axial movement and making locking grooves b on its surface interacting with the ratchet dog 3 of glass 1.

For precise adjustment of the level or other device, the lowest point of the installed core is determined so that the adjustment can be carried out by screwing the screw 10 into the nut 5. For this purpose, a screwdriver is used - the nozzle 18, which with its whiskers 21 enters the grooves 13 of the screw 10, and the guide rod 20 to the central hole 14.

The performance of this kind of mating is dictated by the following factors.

The hole for fasteners in the frames are made for bolts whose thread diameter is smaller than the thread diameter of the lifting screw 10 of the support. At the same time, in the adjustment process, a considerable effort must be applied to the screw 10, and for the safety of the work, this force must be applied to the splines 13, which are located in the visual control zone over the bearing washer 16, on which the machine frame is installed, and deformation of the slot must be completely excluded.

The execution of other types of heads (square, hexagon, etc.) is completely excluded, since they prevent the central hole 14 of the screw 10 of the required diameter from being made, through which the support is pre-adjusted.

These conditions (small diameter of the threaded part 12 of the screw 10 and the necessary stiffness of the spline grooves 13) are satisfied by using a screwdriver — a nozzle made in the form of a bolt and fixed with its antennae 21 in the grooves 13 of the screw 10, and the guide rod 20 — in the central hole 14 and connecting it with the threaded part 12 of the screw 10 with the threaded sleeve 19 (see FIG. 4) screwed at the initial moment onto its threaded part. Covering a part of the screw 10 in the area of the slotted grooves 13, the threaded sleeve 19 does not allow the latter to deform.

Screwdriver head - nozzle allows you to use to rotate the screw

10 tool corresponding to its main thread and it is easy to carry out this process, since this head is located in the zone of visual control.

The rotation of the screw 10 with the aid of a screwdriver-attachment is carried out easily, since the frame (Fig. 3) of the assembly lies on the bearing washer 16 mounted on the thrust bearing, while rotating the screw, the washer 16 does not rotate.

Screwing the screw 10 in the nut 5 to the desired value, you can set the core in a predetermined position with the required accuracy. After removal of the screwdriver - nozzle 18, to fix the support in a predetermined position, a stopper rod 15 is inserted into the central hole 14 of the screw, which interacts with the shank of the stopper with its bevel

five

pin 17 (cf. Fig. 2), recessed it into the groove of the screw and clamp to the thread of the nut.

When removing the rod 15 from the screw hole 14, the locking pin 17 can move freely and when the screw 10 is turned relative to the nut 5, it spontaneously takes up its original position.

When disassembling the support assembly, they are removed, their ratchet pawls 3 are manually removed from the engagement with the locking grooves 6 of the nut 5, which is then recessed in the cup and fixed by the ratchet pawl 3.

Bearing with relatively small initial sizes ensures a significant height of the working body raising, makes it possible to refuse special assembly stands, increases the safety of assembly work and increases the productivity of assemblers.

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Claims (1)

MOUNTING SUPPORT containing a glass with a groove in which a spring-loaded ratchet dog is located, and a nut, characterized in that, in order to increase safety in operation, it is equipped with a screwed connection with a nut with a central through hole, a rod located in the screw hole , a locking pin and a support washer mounted on the screw, while the screw and nut are mounted in the glass with the possibility of axial movement, a groove is made in the screw, designed to accommodate the locking pin, one end of which designed to interact with the rod, and the other with the threaded surface of the nut, the locking pin mounted with the possibility of radial movement relative to the axis of the support, and grooves are made on the outer surface of the nut for interaction with the ratchet dog. FIG. j SU, „, 1247225