SU1219160A1 - Apparatus for depositing coatings on crankshaft journals - Google Patents

Description

The invention relates to the field of mechanical engineering and can be used in the automotive, tractor industry for coating crankshaft journals.

The purpose of the invention is to increase productivity by allowing simultaneous coating of the crankshaft and connecting rod journals.

FIG. I shows the device, top view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows the node I in FIG. 2

The device for coating the crankshaft journals comprises a frame 1, brackets 2 and 3 fixed on it with centers for mounting the processed crankshaft 4., driving it (not shown) with gear 5 and spraying heads 6 mounted with reciprocating shuffle along the processed crankshaft 4.

The device is equipped with two working crankshafts 7 and 8, installed parallel to the machined crankshaft on the base 1 by means of brackets 9 and clamps 10 and made by configuration and dimensions in accordance with the configuration and dimensions of the processed crankshaft 4.

The device is also provided with pads 11, connecting the corresponding connecting rod cranks of the crankshaft shafts 7 and 8 by means of clamps 12 to each other, and gear gears 13-16, through which the crankshafts 7 and 8 are connected via gear 5 to the rotationally driven crankshaft shaft 4.

Each spray head 6 is mounted by means of a bracket 17 on each platform 11 and its axis is perpendicular to the axis. a corresponding crank neck of the crankshaft being machined 4. The device is equipped with additional spray heads 18, each of which is mounted by means of a bracket 19 on the base 1 opposite each main journal of the crankshaft 4 being processed on the other side of the main spray heads 6, and the axis of the additional spray head is perpendicular the axis of the corresponding main journal of the processed shaft 4.

The possibility of the reciprocating movement of the spray heads

6 along the machined crankshaft 4 is ensured by the fact that each crank shaft of each working crankshaft 7 and 8 is made with a helical groove 20, and a stud 21 is mounted at each end of each pad 11, the free end of which is placed in the helical groove 20.

The device works as follows.

When the drive is switched on, the processed 4 and crankshafts that are being machined 7 and 8 0 start to rotate.

The main 6 and an additional 18 spray heads are included, which include plasmatrons, electric arc metallizers or burners for gas-thermal spraying. During the rotation of the working crankshafts 7 and 8, the platforms 11 installed with their connecting rod necks with the brackets 17 and the spray heads 6 make a reciprocating movement along 0 of the crankshaft journals of the working crankshafts

7 and 8 due to the helical grooves 20 and studs 21 and along the crank journals of the crankshaft being machined 4.

Such movement of the spray heads 6 allows to apply a uniform coating over the entire length of the connecting rod journals of the processed crankshaft 4, which rotates synchronously with the crankshaft shafts 7 and 8, while ensuring a constant distance between the spray heads 6 and the connecting rod necks processed crankshaft 4 in any position.

At the same time, a uniform coating is applied to the main journals of the processed crankshaft 4 by spray nozzles 18, which are fixed, since their movement is not necessary due to the small length of the main journals and their coaxial rotation in the centers of the brackets 2 and 3 of the installation of the processed crankshaft 4.

After finishing coatings on the necks of the processed crankshaft 4, the layer thickness of which depends on the operation time, stop the operation of the spray heads 6 and 18 and the rotation of the processed crankshaft 4 with subsequent sending it for further processing.

When applied to crankshafts

 shafts of a different configuration or size install the corresponding crankshafts.

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Editor L. Gratilllo Order 1186/12

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP sPatent, Uzhgorod, st. Project, 4

FIG. five

Compiled by I. Volgin

Tehred I. VeresKorrektor O. Lugova

Circulation 682 Subscription

Claims (1)

A device for applying a coating on the neck of a crankshaft containing a bed, centers for installing a machined crankshaft, a drive for its rotation and spray heads mounted with the possibility of reciprocating movement along the machined crankshaft, characterized in that, in order to increase productivity by providing the possibility of simultaneous coating on the main and connecting rod journals of the crankshaft, it is equipped with two working crankshafts, made according to the configuration and sizes in accordance with the configuration and dimensions of the processed crankshaft and parallel to it platforms connecting the corresponding connecting rod necks of the working crankshafts, gear gears, by means of which the working crankshafts are connected to the rotation drive of the processed crankshaft, and additional spray heads, moreover, on g of each site, the main spray head is mounted, and opposite to each root neck of the crankshaft being processed, tannin mounted additional spray head. SU _t , 1219160 Figure 1