Device for repressive nodes of type shaft sleeve

 

The invention relates to the repair of production, in particular, to dismantle the gears from the shaft of the traction motors of the locomotive. Device for repressive nodes of type shaft sleeve supplemented needle regulator installed on mnogopolyusnom reverse drive switch connected to the inductor, one end of which is rotary mounted grip, made in the form of shaped ring, and to the other of its end fixed power cylinder, and a timer which a single control output connected to the switch, the inductor, and the other with the distributor, which is made of electrically controlled, to which an additional pipeline is attached needle regulator, profiled needle which combined with the jet set in mimoletnom channel direct and reverse mnogopolyusnogo reverse drive, which is made of drum-blade rotary levers fixed to the mutually shifting elements. Shaped ring has a limiter in the form of thickenings on the periphery with a circular groove on the inside, which is associated with the annular stop is made on the external magnetic circuit of the inductor, and the Central holes in them have a size corresponding untru, combined with the ends of the removable sleeve and between them is placed the solenoid. Conserved sizes and surfaces to re-pair parts while reducing power consumption by disconnecting. 1 C.p. f-crystals, 2 Il.

The invention relates to the repair of production, in particular, to dismantle the gears from the shaft of the traction motors of a locomotive.

There is a method of repressive parts connected during Assembly with interference fit requiring alternate heating one of them and cooling the other to form a gap (ed. mon. The USSR №1752525, Method of preparation for the dismantling of forging connections, 23 P 19/02).

For the prototype accepted “Device for repressive gears traction engines” (ed. mon. THE USSR №1761429, 23 P 19/02). The device comprises a fixed base, which is placed on the guides truck, bearing, hydraulic platform, which is a mechanism repressive and capture. The mechanism repressive has hydraulic cylinders, connected by pipelines to the distributor. In addition, between the fixed base and a platform hinged to two reverse drives.

A disadvantage of the known effort.

The task of the invention is to maintain the size and quality of the surfaces to re-pair parts while reducing energy consumption to the separation.

This object is achieved in that the known device with multiple grooves on the outer surface containing the capture, allocator, coupled with mnohopocetnym reversible actuator which is fixed hinge between the fixed bearing and the power cylinder turned by a rod to the side of the shaft, supplemented needle regulator installed on mnogopolyusnom reverse drive switch connected to the inductor, one end of which is rotary mounted grip, made in the form of shaped ring, and to the other of its end fixed power cylinder, and a timer which a single control output connected to the switch, the inductor, and the other with dispenser, which is made of electrically controlled, to which an additional pipeline is attached, at least one needle regulator, profiled needle which combined with the jet set in mimoletnom channel direct and reverse mnogopolyusnogo reverse drive, which is made of drum-blade with the pivot arm is Iveria with a circular groove on the inside, which is associated with the annular stop is made on the external magnetic circuit of the inductor, and the Central holes in them have the size of their respective outer surface and the reverse of the form remove the sleeve, and the external pole of the magnetic core facing the centre, combined with the ends of the removable sleeve and between them is placed the solenoid.

In Fig.1 shows a diagram of a device for repressive nodes of type shaft sleeve. In Fig.2 shows a diagram of installation of the device for repressive to remove from the shaft sleeve. The design of the device for repressive provided for sleeves, having a multi-faceted outer surface with longitudinal grooves and protrusions, for example, for gears.

Device for repressive has the power cylinder 1, is rigidly connected with the end of the inductor 2.

The other end of the inductor 2 has on the external magnetic focus ring 3 and covering his limiter 4, which is made integral with the shaped ring 5.

The inductor 2 has an external magnetic circuit, in the inner cavity of which is placed between the poles of the solenoid and is connected to the power ELEKTROTECHNIKA through a switch (not shown conventionally).

Pole of the external magnetic circuit facing the center to different ends removed the s ring 5, through the limiter 4 and the annular stop 3 is made movable to rotate them with each other around a common axis.

The stopper 4 is made in the form existing on the periphery of the shaped ring 5 thickening, which performed inside the circular groove.

Shaped ring 5 and the outer magnetic core have a Central hole corresponding to the size and the inverse of the shape of the outer surface of the removable sleeve, i.e. the tabs on the dimensions of the slots and Vice versa.

The power cylinder 1 is turned by the rod 6 in the direction of the shaft, on which is pressed removable sleeve, i.e. the inside of the inductor 2 and the external side is pivotally connected through mnogoplodnoy reversible actuator 7 with the fixed bearing 8.

Mnogoplodnoy reversible actuator 7 is made, for example, drum-blade type (two or four) and is equipped with an adjustable levers 9 and 10.

The rotary lever 9 is connected to the hinge 11 mounted on the outer part of the power cylinder 1, and the other end fixed to one of the mutually movable (rotatable) elements mnogopolyusnogo reversible drive 7, for example, the drum 12. The rotary lever 10 with one end pivotally connected with the fixed bearing 8 and the other rigidly with the second mutually the Oh reversing drive supplemented by the nozzles 14 and needle regulator 15 with shaped needles.

The nozzles 14 are installed in mimoletnyh channels for backward and forward movement on the inner wall of the drum 12, which divides it into a cavity.

The power cylinder 1 and the cavity mnogopolyusnogo reversible drive 7 is connected by pipelines to the supercharger through the electrically-controlled valve 16.

Electrically-controlled valve 16 is connected to control the output of the timer 17 to the first control output of which is connected to the switch coil.

Device for repressive nodes of the type of shaft - hub operates as follows.

The grooves of the Central hole of the fitting ring 5 and the inductor 2 is combined with the tabs on the removable sleeve. The inductor 2 with shaped ring 5 and the power cylinder 1 is put on a removable sleeve.

When the supply pressure in the cavity forward stroke mnogopolyusnogo reversible drive 7 and the absence of flow of liquid through the nozzles 14 is an axial displacement of the inductor 2 with shaped disk 5 and the power cylinder 1 relative to the stationary support 8, which allows them to remove the sleeve.

Mutually agreed dimensions of grooves and tabs on the removable sleeve and shaped ring 5 can accommodate removable sleeve in the cavity of the inductor 2.

Then fisoftoc. When turning the grip that is shaped ring 5, the power cylinder 1 remains stationary, since the focus ring 3 and the stopper 4 does not prevent the combination of grooves or ridges.

When performing mnogopolyusnogo reversible drive drum 7-blade and the rotary arms 9 and 10 with the aforementioned hinge eliminates the need for precise installation of the removable sleeve relative to the power cylinder 1 and the fixed bearing 8 in a horizontal plane. The alignment in the vertical plane is determined by the height of the fixed bearing 8.

This completes the preparation for repressive.

Stage repressive remove the sleeve from the shaft begins with the start of the timer, which at a given time includes the energy to the inductor and delivers fluid under pressure through the electrically-controlled valve 16 in the power cylinder 1.

Fluid pressure is supplied simultaneously to one or more needle regulators 15, which profiled needle partially close the nozzles 14.

The stem 6 of the power cylinder 1 creates a force on the shaft, which is held removable sleeve. The higher the pressure in the hydraulic cylinder 1, the smaller the holes remain in the jets.

The inductor 2 creates the Vistula, the surface of the landing of the shaft and remove the sleeve.

The force generated by the shaft for repressive, is determined by a complex dependence of the linear thermal expansion holes in the removable sleeve and the previously created tension with their Assembly and a number of other factors.

Almost at the weight of the removable bushing (gear) about ten kilograms of temperature on the surface of the planting is 150-190°C and the pressure in the hydraulic cylinder 1 is approximately equal to 30 tons

Heating to a temperature of weakening landing it is necessary to provide within one minute so that the shaft is extended. Without heating remove bushing (gear) it remains stationary during the effort, large.

The pickup occurs as a result of two reasons and accompanied by a powerful sound wave and sharp movements. The dramatic movement is perceived mnohopocetnym reversible actuator 7, between the cavities which slowly flows the liquid through the nozzles 14, covered by a profiled needle.

The exact heating time and pressure in the power cylinder 1 to preset impossible and removal occurs at different values. The absorption efficiency of different sizes of the energy of recoil is regulated automatically in direct zavisimosti and if not, the switches electrically-controlled valve 16 to supply high pressure in the power cylinder 1 and the needle regulators 15. Needle regulators 15 close the nozzles entirely, which contributes to a better damping of the recoil when the increased force repressive.

The process of repressive significantly accelerated by the conical mounting surfaces. Create preliminary efforts along the axis automatically detects the moment of repressive slight, but sufficient weakening of the tension on the landing surface that prevents substantial heating of the shaft, which prevents repressive.

For repressive don't need high heat until backlash in the connection and the free end, therefore, the electric power consumed slightly.

It does not require excessive force separation of the parts in cold prestressed connection, which also reduces the cost of creating very high pressure fluid.

Total minimum heating and air force require less cost than any of them separately.

Note that a large heat changes the structure of the metal, and cold separation risks and leaves burrs on the mounting surfaces, i.e. the text-align:center; margin-top:2mm;">Claims

1. Device for repressive nodes of type shaft sleeve with multiple grooves on the outer surface containing the capture, allocator, coupled with mnohopocetnym reversible actuator which is fixed hinge between the fixed bearing and the power cylinder turned by a rod to the side of the shaft, characterized in that it is supplemented with at least one needle regulator mounted on the mentioned mnogopolyusnom reverse drive switch connected to the inductor, one end of which rotary has mentioned the grip, made in the form of shaped ring, and to the other of its end fixed power cylinder, and a timer, which a single control output connected to the switch, the inductor, and the other with the said valve, which is made of electrically controlled, to which an additional pipeline is attached, at least one needle regulator, profiled needle which combined with the jet set in mimoletnom channel direct and reverse mnogopolyusnogo reverse drive, which is made of drum-blade rotary levers fixed to mutually shift the elements.

2. is on the periphery with a circular groove on the inside, which is associated with the annular stop is made on the external magnetic circuit of the inductor, and the Central holes in them have dimensions corresponding to the outer surface, and return the form to the withdrawn sleeve, and the external pole of the magnetic core facing the centre, combined with the ends of the removable sleeve and between them is placed the solenoid.



 

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