RU1798153C - Device for pressing cylinder liners out of cylinders of internal combustion engines - Google Patents

Abstract

The invention relates to a hand tool used, in particular, for extruding cylinder liners of internal combustion engines. SUBSTANCE: cylinder has a pivotally mounted cylinder fixed on an arm, and the return spring is conical and mounted on the rod, which makes it possible to increase the supporting surface of the gripper. The housing is equipped with rotary rods, which can be used as handles, and a return spring placed on the rod 1. z.p. f-ly, 3 silt, ... . . - -.

Description

The invention relates to a device for extruding cylindrical hollow parts, mainly cylinder liners of internal combustion engines.

The purpose of the invention is to increase the productivity and operational capability of the device by increasing the grip support surface.

In FIG. 1 shows a general view of the device, a longitudinal section (with positions I, I, and IU in the positions of installation of the device on the unit); in FIG. 2 is a section AA in FIG. i; in FIG. 3-section BB on fit. 1.

A device for extruding sleeves qi. The internal combustion engine cylinders contain ..kopnyc 1, on which the traction element 3 is installed via the Oby 2, for example a hydraulic cylinder, with a brush 4. The hydraulic cylinder is connected to a hydraulic pump (not shown). Nairoshinu rod 5 in the middle of the ring 6 steps | Bracket 7 is mounted, on which iakpeti is rigidly gripped with hooks. The capture is made in the form of a circle, which is truncated from opposite sides to

width, allowing the passage of the clamp between the walls of the cylinder liner 9 at an angle, the conical return spring 10, installed between the stop of the rod 11 and the groove of the gripper 12, holds the gripper in a position perpendicular to the axis of the rod 4, and also returns it to the specified position after forced rotation on the axis of the finger 6. On the rod 4 between the cylinder 3 and the emphasis of the rod 11 is installed return spring 13 of the rod. The housing of the device is equipped with support slewing rods 14 for installation; it is mounted on the cylinder block 15. To fix the device on the block, the grooves 1b are made in the support rods, into which the studs 17 enter, the rods 14 are mounted on the axes 1B and have two positions: the lower one for fixing the device to the block, and horizontal to use them as handles.

LG The device operates as follows. g .... .-. . h ;: Using handle 14, the gripper 8 is inserted into the cylinder liner

H

U 00

ate with

(pos. I). The grip is rotated at an angle sufficient to allow it to pass between the walls of the cylinder. The grip is lowered into the cylinder until the grip is released and placed in a horizontal position under the action of the grip spring 10 (pos. II). The device then rises until the grip is installed under the cylinder liner 9 (pos. Ill) and by turning the rods 14 and the lower position is fixed on the cylinder block. With the hydraulic pump, the rod 4 moves upward and transfers the pulling force to the gripper 8 by pressing out the cylinder sleeve 9. After the hydraulic pump is turned off, the rod return spring returns to its lowest position, the gripper rotates to the required angle and is removed from the sleeve.

Then, the indicated operation is repeated on the next sleeve.

Performing a grip mounted on an arm pivotally mounted on

0

5

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the rod, allows you to increase the supporting surface of the grip, and the conical spring allows you to rotate it at a large angle.

Claims (2)

1. A device for extruding cylinder liners of internal combustion engines, comprising a housing with supports, a drive and a link connected to the housing, mounted in the housing with the possibility of reciprocating movement, and pivotally mounted on a trap, In order to increase productivity and operational capabilities, it is equipped with a spring mounted coaxially with a cable, one end of which is fixed to the grip, and the other: on the cable, the supports are mounted on the housing with the possibility of rotation and fixing. 2. The device according to p. 1, including the fact that the spring is conical. .- ......