Integral bearing automatic retreating and unloading machine for rail vehicle

Abstract

The invention belongs to the technical field of retreating and unloading machines, and discloses an integral bearing automatic retreating and unloading machine for a rail vehicle. The integral bearingautomatic retreating and unloading machine comprises a mechanical part, an electric control system and a hydraulic system; the mechanical part comprises a base, a frame body, a wheel pair lifting positioning device, bearing retreating and unloading devices, a pulling wheel mechanism, a center height measuring device, drawing mechanisms and bearing storage slots; the drawing mechanisms are symmetrically arranged above the base, the bearing retreating and unloading devices are arranged on the inner sides of the drawing mechanisms, the bearing retreating and unloading devices are connected witha core pulling oil cylinder, the core pulling oil cylinder is mounted on the base, and the core pulling oil cylinder pushes the bearing retreating and unloading devices to the positions above wheel pair bearings; and the frame body is installed in the middle of the base, the wheel pair lifting positioning device is installed below the frame body, the pulling wheel mechanism is arranged on the outer side of an upper guide rail of the frame body, the center height measuring device is arranged on the outer side of the pulling wheel mechanism, and the bearing storage slots are arranged on one sides of the bearing retreating and unloading devices. The integral bearing automatic retreating and unloading machine is reasonable in structure, safe, stable, high in degree of automation and high in retreating and unloading efficiency, and can meet the retreating and unloading requirements of multiple wheel set bearings.

Description

technical field [0001] The invention belongs to the technical field of unloading machines, in particular to an integral bearing automatic unloading machine for rail vehicles. Background technique [0002] The bearing unloading machine is a special equipment used to disassemble the rolling bearing from the shaft diameter, and can complete the disassembly of the integral rolling bearing; for the unloading work of the subway wheel set bearings, the two-end unloading operation is usually used, which is suitable for all The wheel set bearings of rail vehicles are unloaded. At present, the existing domestic unloading machines are not highly automated. The bearing unloading device mechanism is easy to damage the end face of the wheel shaft, which cannot meet the unloading of different types of bearings. After the bearings are unloaded, manual labor is required. Pushing out the wheel set is time-consuming and labor-intensive operation, which has certain potential safety hazards. At...

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Problems solved by technology

[0002] The bearing unloading machine is a special equipment used to disassemble the rolling bearing from the shaft diameter, and can complete the disassembly of the integral rolling bearing; for the unloading work of the subway wheel set bearings, the two-end unloading operation is usually used, which is suitable for all The wheel set bearings of rail vehicles are unloaded. At present, the existing domestic unloading machines are not highly automated. The bearing unloading device mechanism is easy to damage the end face of the wheel shaft, which cannot meet the unloading of different types of bearings. After the bearings are unloaded, manual labor is required. Pushing out the wheel set is time-consuming and labor-intensive operation, which has certain potential safety hazards

At present, the lifting and positioning device of the existing unloading machine wheel set has a large lifting and positioning error, inconvenient operation, and low efficiency of unloading the wheel set bearing

China Patent Application No. 2017215111805 (application date is 2017.11.14) "Central Hole Positioning Double-ended Bearing Unloading Machine", including the frame, the two ends of the frame are symmetrically equipped with an unloading oil cylinder, and the outer layer of the unloading oil cylinder is a Metal sleeve, inside of which is the piston rod. The diameter of the front end of the piston rod is smaller than the diameter of the axle end. There is a top inside, and a movable plate device is installed on the side of the frame, but the degree of automation is low and the precision is low.

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