SU515621A1 - Tool for fastening the cup in the cylinder head of the engine - Google Patents

Description

one

The invention relates to a mechanized tool for assembling (disassembling) units of various mechanisms and can be used in assembling internal combustion engines.

A known tool for fastening the cup 1B to the cylinder head of the engine with a fastening nut, 1containing drive with a spindle and a working body, made in the form of a tonnage wrench, mounted on the spindle and spring-loaded in the axial direction.

However, the known tool is inefficient, since the operations of assembling the glass and the fastening nut are carried out separately. In addition, when assembling separately, the build quality deteriorates due to possible distortions of the mating parts.

The aim of the invention is to increase the productivity and quality of the assembly.

This is achieved by the fact that the tool body is provided with a lock nut retainer, made in the form of a ball, spring-loaded in the radial direction, and a catch, which enters the cup, made in the form of a collet, freely mounted on the spindle end.

The drawing shows the proposed tool with fasteners in the working position, a longitudinal section.

The device contains a drive (not shown in the drawing), which drove 1 through a planetary gearbox 2 transmits rotation to the output shaft of spindle 3, which is coupled by a spline connection 4 through sleeve 5, with a working body made in the form of a socket wrench 6 held by a special nut 7 The key 6 through the sleeve 5 is spring-loaded in the axial direction by a spring 8. The latch of the fixing nut 9 is made in the form of a ball 10, spring-loaded in the radial direction by the spring I, and mounted on the nozzle 12 connected to the spindle by means of a pin 13. On the end face The nozzle 12 is loosely fitted to the gripper 14, which enters the cup 15, which is fixed in the head of the 16 cylinders of the engine. The gripper 14 is made in the form of a collet 17, which is installed in the grooves of the ro.tica 18, which abut against the clip 19 with the thrust ball bearing 20, which sits on the axis 21, fixed to the nozzle by the pin 22.

The tool works as follows.

The fastening nut 9 with its grooves engages with the corresponding grooves of the socket wrench 6 and is fixed in this position by the spring-loaded ball 10, the cup 15 is put on the gripper 14 and held in this tension by the collet 17. Then the tool is fed to the cylinder head socket 16 of the cylinders . The engine is turned on, the rotation from the carrier through the planetary gearbox 2 is transferred to the output shaft of the spindle 3 and through the spline connection 4, the sleeve} 5 to the socket wrench 6 and the fastening nut 9. The spring 8 disinfects the axial supply of the wrench 6 as the nut 9 turns. the nut tightening process 9 with a calibrated torque, the engine is turned off and the tool is taken to the initial position.

Claims (1)

Invention Formula A tool for the addin's roll in the cylinder head of the engine with a fixing nut, containing a drive with a spindle and a working body, made in the form of a socket wrench, mounted on the spindle and loaded in the axial direction, characterized in that, in order to increase the performance and quality of the assembly, the working body is equipped with a fixing nut lock, made in the form of a ball, spring-loaded in the radial direction, and the gripper included in the rack and made in the form of a collet, freely mounted on the end of the spindle. 22 15 21 17 16