SU1539038A1 - Arrangement for mounting parts to places of machine that are difficult for access - Google Patents

Abstract

The invention relates to machine-assembly production, in particular, to devices for mounting press joints. The purpose of the invention is the expansion of technological capabilities by pressing the blades into the slots of the turbomachines without disassembling the latter. By compressing the spring 7, the pusher 13 is inserted into the cavity of the stop 2, and the gripper 10 is rectified manually. The folded device is inserted through the flap 19 into the internal cavity of the turbomachine body, after which the action on the springs 6 and 7, which are connected through flexible rods 15 and 16 with the stop 2 and the grip 10, returns to the working position. By rotating the device around the longitudinal axis of the rod 1, the gripper 10 is adjacent to the blade. Pin 12 and the end of the anvil 2 rest on the body assemblies of the machine. The impact on the end of the rod 1 of the vibro-impact load is carried out by pressing the blade 21 until the limiter 17 stops against the end of the flap 19. 4 Il.

Description

FIELD: mechanical assembly production, in particular, devices for assembling press joints in hard-to-reach places of machines.

The purpose of the invention is the expansion of technological capabilities.

The goal is achieved by ensuring that the blades are installed in the slots of the turbomachines without disassembling the latter.

Figure 1 shows the device, a general view; figure 2 is the same, view a in figure 1; on fig.Z - the device is folded before entering into the hatch of the turbomachine; figure 4 - the device is in an intermediate position at the time of capture for the blade.

h The device contains a rod 1, stop

2 and the pressure element. On the rod 1, thrust rings 3, 4, 5 are mounted. Between these rings, a compression spring 6 and an extension spring 7 o are placed on the rod. The stop 2 is designed as a lever with a supporting end 8 at one end and a rectangular notch at this end. The other end of the stop 2 is connected by means of a hinge 9 with the end of the rod 1. The pressure element is designed as a gripper 10 with a side protrusion

11 at one end and support pin

12 is on the other, as well as a pusher 13, which is connected at one end by means of a hinge 9 with a rod 1, and the other by means of a hinge 14 with a grip 10. The latter is mounted with a possibility of moving in the rectangular notch of the stop 2. Anvil 2 engaged in flexible compression spring 15

6, and the pusher 13 is flexible with a tension spring 16; 7; On the rod 1 it is also installed with the possibility of axial adjustment movement

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limiter 17, whose position is monitored on a scale of 18.

The installation of the device in the working position is carried out in the following order. Before insertion into the hatch 19 of the turbomachine, the device is folded, for which, by compressing the spring 7, the pusher 13 is inserted into the cavity of the abutment 2, and the gripper 10 is rectified manually. After insertion into the flap, the spring 7 is released and compressed again. As a result, the gripper 10 tilts toward the wheel 20 to a horizontal position and its head with a protrusion is located beyond the edge of the blade. By turning the device, the gripper 10 presses against the edge of the blade 21, squad 7 is released and the head stands on the edge of the blade 21. With further movement of the device up, first the gripper head 10 is transferred to the blade shank, then the stop 2 is inserted on the edge of the disk 20 and the fifth 12 gripper 10 rises on the inner ring of the guide vane 22. The device is ready for operation.

The device works as follows.

A vibratory shock is applied to the end of the rod 1, for example, with the aid of a pneumatic hammer. From the rod 1, through the pusher 13 and the grip 10, the load is transferred to the shank of the blade 21. At the same time, through the stop 2, the device tends to push away from the wheel disc 20. The blade moves and returns to the working position. Progressing further does not give it a stopper 17 on the rod 1. Support for the guiding device 22 is needed to stiffen the system and reduce the load on the hinge.

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Claims (1)

Formula of Effect A device for mounting parts in hard-to-reach places of machines, comprising a pressure element, a rod and a stop associated with it, characterized in that, in order to expand technological capabilities by ensuring that the blades are installed in the slots of turbomachines, it is equipped with stop rings mounted on the rod, a compression spring and a tension spring placed on the rod between the said retaining rings, two flexible rods, each of which is connected at one end with a corresponding spring, and also a rod movement limiter, ovaled on the latter with the possibility of axial re gulirovochnogo movement, the emphasis is made in the form of a lever with a supporting end and a rectangular cut at this end, pivotally fixed end, opposite the supporting end, at the end of the rod is connected through one flexible pull with a compression spring, and the pressure the element is designed as a boat grip a knob on one end and a support point on the other, as well as a pusher, the gripper being mounted for movement in a rectangular cut-out of the stop, and the rammer is pivotally connected to the end of the stem and the other end to the gripper the support point, and the second flexible connecting rod is connected to the tension spring. View / 1 FIG. 2 Thebes 1