Part stripping apparatus

FIELD: machine engineering, namely equipment for dismounting press-fit joints, possibly restoration of electric machines.

SUBSTANCE: apparatus includes housing with platforms for horizontal and vertical motions. Part to be dismounted is placed on horizontal motion platform and it is fed to stripping mechanism. The last is joined with vertical motion platform by means of fastening members and it is provided with adjusted grips supporting heating members with possibility of their axial movement. Heating members are in the form of nozzles for alternating feed of hot and cooled air.

EFFECT: reduced axial errors between dismounted part and stripping mechanism, lowered efforts for stripping parts.

5 cl, 5 dwg

 

The invention relates to disassembly forging connections and can be used in the repair of electrical machines.

Known stand for disassembly crankshaft (A.S. No. 626930, M CL 23 P 19/02, 1978), consisting of the frame and secured to it by means of a removable hinge mechanism, and a movable platform located along the frame and bearing on himself working cylinder, providing a removable drive mechanism. This stand is devoid of universality, is designed for a specific size of the product, does not provide compensation error of skew axes when installing parts of various sizes.

Closest to the technical essence is the setting for thermal disassembly forging connections (A.S. No. 1556861, M CL 23 P 19/02, 1980), consisting of a frame mounted on it with the possibility of lateral movement along the axis of the bed platform with fixed thereto a removable mechanism, tilt-up table for installation on him dismantle the product and heating devices removable parts, made in the form of exciting coils and magnetic circuits around shooting things.

However, this stand is not enough universal, as it is intended to remove from the shafts of the long sleeves with a small range of sizes od (there is a limit on internal d is ametro exciting coils). In addition, it does not provide compensation of axial errors that occur when vzaimodeistvie products and detachable mechanism, resulting in increased efforts of removal and damage the mating surfaces upon removal.

The technical result of the present invention is to increase the versatility of the device, reduction occurs when the exhibition the axis of the product relative to the axis of the removable mechanism errors and reducing the effort required for removal of parts during disassembly of the product.

The technical result is achieved in that the device for removal of parts, consisting of a frame with horizontal and vertical movement, a removable mechanism and devices for heating the removable parts of removable mechanism mounted on the platform for vertical movement and provided with adjustable clamps, and the heating elements are in the form of nozzles for alternating hot and cold air and is installed on the grips removable mechanism with the possibility of axial movement along the axes of the grippers. The heating elements are equipped with ball bearings, interacting with seizures. Removable mechanism mounted spherical bearing, interacting with the platform vertical movement. Removable mechanism and the platform is moved vertically connected by fastening elements which, spaced evenly around the circumference and is made in the form of pins, one end of each of which is associated with the screw hole of the removable mechanism, and the second end of each of the pins enters freely into the hole of the platform vertical movement and spring is fixed to the platform vertical movement of the nut. Removable spring-loaded mechanism to the platform vertical movement.

Figure 1 shows the proposed device, General view; figure 2 is a side view of figure 1; figure 3 is a section a-a in figure 1; figure 4 is a cross-section B-B in figure 1; figure 5 is a view In figure 4.

Device for removal of parts comprises a frame 1, a movable platform 2 mounted on it a removable prism 3 for installation of products, such as rotors of electrical machines, with the possibility of lateral movement along the axis of the frame; removable mechanism 4 with adjustable diameter removable parts grippers 5 and installed a spherical support 6 interacting with the platform vertical movement 7. Removable mechanism 4 and the platform vertical movement 7 is connected fasteners, spaced evenly around the circumference and is made in the form of pins 8, one end of each of which is associated with the screw hole of the removable mechanism 4, and the second end of each of the pins enters freely into the hole of the platform vertical is on the move 7 and spring is fixed to the platform vertical movement of the nut 9, this removable mechanism 4 is spring-loaded to the platform vertical movement 7 using cylindrical spring 10.

On the grippers 5 removable mechanism 4 is installed using a bracket 11 on ball bearings 12 heating elements 13 with nozzles 14 to alternately hot and cold air. On the frame 1 also has a pneumatic pump 15 and the remote control 16.

The device operates as follows.

The product, for example the rotor of the electric machine (not shown), is placed on the prism 3 of the movable platform 2. Using the mobile platform 2 and platform vertical movement 7 put the rotor and removable mechanism 4 are aligned, adjust the relative positions of the grippers 5 under the diameter of the removable parts, seize remove the item grips removable mechanism 4 includes a pneumatic pump 15 with the corresponding button on the remote control 16 and rests movable rod removable mechanism 4 in the rotor shaft, when this error exhibitions axis of the rotor shaft and removable mechanism compensated for by the elastic movable support removable mechanism. Expose the nozzle 14 of the heating elements 13 by moving bracket 11 along seizures, changing the position of the ball bearing 10 in the direction of the removed parts. Include air blast through the heating elements 13 hot compressed air snime the second part. Feeding in the working cylinder removable mechanism working fluid under pressure, produce the removal of items from the rotor shaft. After removal of parts off the heating elements 13 and produce an air blast cooled compressed air to accelerate cooling of the heating elements 13.

The proposed device provides eat a wide range of parts, distinguished by length and diameter, the shaft, due to the adjustment of the mutual position of the product and the removable mechanism in horizontal and vertical planes, as well as to adjust the relative position of the grips removable mechanism depending on the diameter of the removable parts; offsets occur during the removal of the axial error by the proposed design of the removable fastening mechanism on the vertical platform; reduces the force removal of parts due to their heat with the free manipulation of the heating elements installed on the grips removable device. All this increases the versatility of the device in comparison with analogues.

1. Device for removal of parts containing a frame with horizontal and vertical displacements, removable mechanism and a device for heating the removed parts, characterized in that the removable mechanism mounted on the platform vertical the aqueous displacement and provided with adjustable clamps, and the heating elements are in the form of nozzles for alternating hot and cold air and is installed on the grips removable mechanism with the possibility of axial movement along the axis of the grips.

2. The device according to claim 1, characterized in that the removable mechanism mounted spherical bearing, interacting with the platform vertical movement.

3. The device according to claim 1, characterized in that the removable mechanism and platform vertical movement of connected fasteners, spaced evenly around the circumference and is made in the form of pins, one end of each of which is associated with the screw hole of the removable mechanism, and the second end of each of the pins enters freely into the hole of the platform vertical movement and spring is fixed to the platform vertical movement by a nut.

4. The device according to claim 1 or 2, characterized in that the removable mechanism is spring-loaded to the platform vertical movement.

5. The device according to claim 1, characterized in that the heating elements are equipped with ball bearings, interacting with seizures.



 

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