Shirking press-mounting device of spring positioning seat friction sleeve of railway vehicle axle box and use method thereof

Abstract

The invention discloses a shirking press-mounting device of the spring positioning seat friction sleeve of a railway vehicle axle box and a use method thereof, belonging to the technical field of a transplanting tool. The device comprises an engine base, a U-shaped arm, a heating device, a punch, a guide rod and a positioning seat clamping device, wherein the positioning seat clamping device substrate comprises a substrate and an upper cover; one end of the substrate is hinged with the upper cover; the other end of the substrate is connected with a clamping bolt; the positioning seat clamping device substrate is penetrated through the guide rod; the positioning seat clamping device substrate and one side arm on which the punch is positioned are connected by a hydraulic push rod; the positioning seat clamping device freely slides along the guide rod under the action of the hydraulic push rod; and the hydraulic push rod can control speed and regulate travel direction by the hydraulic system. The shirking press-mounting device has the beneficial effect that interference fit materials are withdrawn by the principle of expanding with heat and contracting with cold; electric soldering personnel is reduced during gas cutting; the overhauling efficiency of the positioning seat friction sleeve is improved; and the labor intensity of workers can be reduced by mechanical equipment.

Description

technical field [0001] The invention relates to a device and a method for pushing and unloading a friction sleeve of a spring positioning seat of a railway vehicle axle box and press-fitting a friction sleeve of a positioning seat, belonging to the technical field of vehicles. Background technique [0002] The positioning seat refers to the elastic positioning sleeve placed on the spring tray, supporting the axle box spring and connected to the spring support. The friction sleeve inside the positioning seat (there are two friction sleeves on the upper and lower sides) rubs against the elastic positioning sleeve on the spring support. Moderate vibration and reduce shock during bus operation. At present, domestic vehicle depots do not have special equipment for unloading the friction sleeve of the positioning seat. All of them use manual gas cutting to cut a hole in the friction sleeve of the positioning seat, and then press out the friction sleeve with a hydraulic abrasive to...

AI Technical Summary

Problems solved by technology

At present, there is no special equipment for removing the friction sleeve of the positioning seat in all domestic vehicle depots. All the friction sleeves of the positioning seat are cut by manual gas cutting, and then the friction sleeve is pressed out with a hydraulic abrasive tool on the hydraulic press.

In the process of operation, the process is complicated and it takes a long time to remove one friction sleeve, and it takes one and a half hours to remove the friction sleeves of 16 positioning seats in the whole vehicle

In addition, the removal of the friction sleeve of a positioning seat requires both the electric welder to cut the friction sleeve and the press operator to remove and press the friction sleeve, which is a serious waste of manpower

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