SU1227395A1 - Device for mounting and dismantling blocks of cylinder head valve-actuating gear - Google Patents

Description

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The invention relates to mechanical engineering and can be used in the assembly and disassembly of internal combustion engines.

The aim of the invention is to increase productivity by providing additional autonomous movements of the pressure element of each working head along and around its vertical axis, which promotes better mating and facilitates disassembly of parts of the valve mechanism.

FIG. 1 shows the device, | general view; in fig. Fig. 2 is a view of A-on (Fig. 1; Fig. 3, node I in Fig. 2 in Fig. 4 is a section through PB in Fig. 1; Fig. 5 is an embodiment of the drive of the link.

The device includes a frame consisting of a base 1 on which the sleeves 2 are fixed, the columns 3 movably mounted in the sleeves 2, and the crosspiece 4 connecting the columns 3 in the upper part. On traverse 4, with a possibility of horizontal movement, a series of working heads 5 with pressure elements 6 are installed. In the lower part of column 3, they are connected between a coaxial beam 7, a ram of which is fixed 8 of the power cylinder 9 pivotally connected to the base 1. Working the head 5 includes a bracket 10 fixed on the cross bar 4, in the opening of which a movable column 11 is installed, covered by a screw pond 12. One end of the movable column It is pivotally connected to the slide 13 by means of a pin 14, pressed into the movable column 11 and serving as an axis At the other end of the movable column 11. longitudinal grooves 15 are made, in which a pin 16 mounted on a bracket 10 is mounted, also located in a curvilinear groove .17 of the scenes 13. A bushing 18 is telescopically mounted in the opening of the movable column 11 18 concentrically it is located covered by a spring 19, the rod 20 with a notch on the lower end, in which is located the pin 14. In the lower end of the sleeve 18, the shank 21 of the pressure element 6 is pressed,

performed, for example, in the form of staples. A pin 22 is installed in the hole of the shank 21 of the pressure element 6, on which the eccentric 23 connected to the handle 24 is loosely mounted. Upper part of the slide 13 is rigidly connected to

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handle 23 or with the rod 26 of the power cylinder 27 (according to the variant shown in FIG. 5).

The horizontal movements of each head 5 relative to the cross bar 4, as well as the fixation of the heads 5 in a certain position and at a certain distance from each other, are provided with a bar 28 connected to the bracket 10 with bolts 29 and an eccentric 30 located in the hole of the bracket 10 and fix- ZG and bolt 32 (Fig. 5). The arrangement of the heads 5 depends on the size of the cylinder head 33 mounted on the base 1. The valve mechanism of the cylinder head 33 (Fig. 2) includes a valve 34 mounted in the openings of the washer 35 and valve plate 36, between which springs 37 and 38 are located. Between the valve 34 and the valve plate 36, rusks 39 are installed,

The device works as follows.

When dismounting the crackers 39 of the valve mechanism, the operator sets the cylinder head 33 on the base 1 and turns on the power cylinder 9. Downward movement of the stem 8 of the power cylinder 9 causes the beam 7 to move downward and the crosshead 4 with the head- 5. Under the pressure of the pressure element 6 onto the plate 36 the valve springs 37 and 38 are compressed, freeing the crackers 39. If the crackers 39 do not fall out of the grooves of the valve 34, the operator can increase the pressure of the pressure element 6 per ton valve 36 and turn the handle 24 horizontally by turning the handle 24 in the vertical plane plane to ensure the movement of the valve plate 36 in the horizontal plane, facilitating the release of the crackers 39. If necessary, release the valve plate 36 from the pressure of the pressure element 6 rotate the slide 13 around the pin 14 using the handle 25 or the power cylinder 27, while the finger 16 moves in a curvilinear the groove 17 of the scenes 13 and in the longitudinal grooves 15 of the movable column 11, causing the rise of the movable column 11, the sleeve 18. and the pressure element 6 by the amount due to the length of the longitudinal grooves 1.5 and the profile of the curvilinear groove 17. After dismantling the crackers 39 is triggered

The power cylinder 9, the yoke 4 with the heads 5 is lifted and made with further disassembly of the valve mechanism manually. After that, the link 13 and the eccentric 23 is returned to its original position, respectively, using the handles 25 and 24.

When installing the nutmeg 39 in the valve mechanism, the operator sets the cylinder head 33 with pre-selected valves to the base 1 and turns on the power cylinder 9. The crosshead 4 with the heads 5 moves down, the pressure element 6, exerting pressure on the valve plate 36, compresses the springs 37 and 38 , at the same time, the space between the groove of the valve 34 and the valve plate 36 for installing the crackers 39 is freed. If the installation of the crackers 39 is difficult, then with the help of the handle 24 the pressure element 6 is moved and

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accordingly, the valve plate 36 in a vertical or horizontal plane, thereby ensuring the working position of the parts of the valve 5 mechanism. After assembling one valve mechanism, the operator can release it from the pressure of the pressure element 6 using the handle 25, as described above, or after assembly

10 all valve mechanisms lift all heads 5 at the same time. When the valve plate 36 is relieved of the pressure of the pressure element 6, the springs 37 and 38 raise the valve valve 36, and due to the tapering of the contacting surfaces of the valve plate 36 and the crackers 39, the valve mechanism is finally fixed.

20 After completion of the assembly of all valve mechanisms, all the scenes 13 and eccentrics 23 return to their original position.

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Editor I. Rybchenko

Compiled by L. Voskoboinikova

Tehred N "Bonkal Okorrektor O. Lugova

Order 2247/14 Circulation 1001Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (2)

1. INSTALLATION DEVICE AND DISASSEMBLY OF VALVES OF THE VALVE MECHANISM OF THE HEAD OF THE CYLINDER BLOCK, comprising a frame with a traverse, on which working heads with pressure elements are installed with the possibility of horizontal and vertical movements, characterized in that, in order to increase productivity, each working head is made in the form of coaxial axially movable spring-loaded columns and bushings installed in the vertical hole of the bracket, as well as an eccentric and the link, and the pressing element is rigidly fixed in the sleeve and pivotally kstsentrik mounted to cooperate with the lower-end speaker which is at the bottom of ^g is connected to the side scene by a hinge, wherein the hinge axis extends through a longitudinal slot provided in the sleeve, in addition, rocker and the column connected to the bracket by means of cylindrical pin rigidly mounted on the bracket and passing through a curved groove in the backstage and a longitudinal groove made in the upper part of the column. 2. The device pop. ^ characterized in that each working head is additionally equipped with a swing arm drive in the form of a power cylinder, the body of which is pivotally mounted on an arm, and the rod is rigidly connected to the arm. »SU, 1227395 1 1227395