SU781007A1 - Stand for assembling and disassembling heads of engine cylinder blocks - Google Patents

Description

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The invention relates to process equipment and can be used in car repair industry.

A stand for disassembling and assembling cylinder heads of engines with an overhead valve timing is known, comprising a housing, a swing frame, a screw adjusting device, and a turning body And and

The disadvantage of the known stand is that it can be used to disassemble and assemble cylinder heads of only one type of size, i.e. This stand is not universal.

The purpose of the invention is the expansion of technological capabilities by ensuring the disassembly and assembly of cylinder heads of various sizes.

This goal is achieved by the fact that the stand is equipped with a device for fixing the valves in the combustion chambers of cylinder heads, made in the form of a shaft with protrusions arranged along a generatrix so that the shape of the protrusions located on each generator corresponds to a specific size of the heads of qi blocks.

In Fig.1 schematically shows the proposed stand, a general view; figure 2 - section aa in figure 1.

The stand consists of a housing 1, on which a rotating frame 2 is located, hinged at one end; connected to housing 1, and at the other end having a screw regulating device 0 3.

In case 1, there are rigidly fixed guides 4 rods 5, on which

15, return springs 6 are installed. The lower end of the rods 5 is connected to the crosspiece 7, against which the strut 8 of the pneumatic chamber 9 rests, which is mounted on the bracket 10. In the bosses 11

20 is fixed with the possibility of rotation of the working body 12, made in the form of several pressure bars of various configurations and sizes, rigidly fixed at a certain angle

25 on the same axis. The working body 12 is provided with a latch 13. In the case 1 there is a rotary device 14 for fixing the valves, made in the form of a shaft with protrusions arranged along a generator so that the Shape

Stupas, located on each generator, corresponds to a certain size of the cylinder head. At one end of the rotator 14, a manual actuator in the form of a handwheel 15 is placed. On the body 1 a control valve 16 is installed with a handle 17 and a tube 18 for supplying compressed air from the air system. The stand works as follows. The working body 12 is rotated to the position corresponding to the danyre head of the block, turning the handwheel G5 sets the rotary device 14 for fixing the valves so that the stops for the valves correspond to a certain size of the head of the block. The cylinder head is mounted on the pivoting frame 2, turning the adjusting device 3 rotates the frame so that the axles of the valve springs are in the vertical position, turning the knob 17 of the control valve 16 opens compressed air through the tube 18 into the upper cavity of the pneumatic chamber 9. Pneumatic chamber 8 9 onyckaeTCHH through the yoke 7 and the working rods 5 transmits movement to the working body 12, which, lowering, compresses the valve springs of the block to be disassembled, releases the locking rusks and yes; you can remove them, and TeN {most p1azo Men valve assembly. After completion of the operation, turning the handle 17 smoothly releases compressed air from the upper cavity of the Lnevmocamera 9 into the atmosphere. Under the action of springs 6 and compressed valve springs (on

fj

the drawing is not shown) the working body 12 rises to the upper position.

The cylinder head assembly is performed in the reverse order.

Claims (2)

1. Tools for machining and assembly. Devices for assembly. - Sb. General engineering standard and guidance materials. OMTRM 3466-009-63. M., 19bZ, VYP.1, section 4, p. 248-249 (Center. I-t scientific information on automation and engineering). 2. USSR author's certificate No. 521111, cl. B 23 R 19/00, 1974. F1 / g.1 f2 YU