Bucket wheel excavator

Abstract

The invention discloses a bucket wheel excavator which comprises a bucket wheel mechanism, a material receiving arm, an L-beam, a discharging arm (4), a walking mechanism, a large central gyrator and a small central gyrator, wherein the bucket wheel mechanism is arranged at the front end of the material receiving arm; the back end of the material receiving arm is hinged on the upper part of the L-beam; one end of the discharging arm is supported on the small central gyrator, and the other end of the discharging arm is connected to the top of the L-beam through a pull rod; the large central gyrator is arranged between the L-beam and a central frame; the small central gyrator is arranged on the central frame; the bucket wheel mechanism consists of a hydraulic motor, a bucket wheel speed reducer, a bucket wheel shaft, a bucket wheel body and a hopper; the bucket wheel shaft is arranged between two bearing seats at the front end of the material receiving arm; the bucket wheel speed reducer and the hydraulic motor are arranged at one end of the bucket wheel shaft, and the bucket wheel body is arranged at the other end of the bucket wheel shaft; and the hopper is fixed on the bucket wheel body. A power system of the entire bucket wheel excavator adopts a full-hydraulic mode, is provided with an engine, does not need to be connected with power electricity, has high yield, a wide application field, low noise and low pollution, and is free and flexible.

Description

technical field [0001] The invention relates to the technical field of excavators, in particular to a bucket wheel excavator. Background technique [0002] In the past, excavator equipment was driven by a motor to drive a reducer. The energy conversion relationship is: electrical energy is converted into mechanical energy; Working in an environment with relatively good working conditions, which directly affects the limitations of equipment use, it is precisely because of such harsh working conditions that many advanced equipment cannot enter this area for construction, resulting in these areas The construction of the engineering work can only adopt the original operation method, such as using a single bucket excavator to excavate and use a car to reload, or use a train to reload, which causes a lot of waste of manpower and material resources, and high energy consumption and low production capacity. , the degree of mechanization is low; in the past, when the driving device o...

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Problems solved by technology

[0002] In the past, excavator equipment was driven by a motor to drive a reducer. The energy conversion relationship is: electrical energy is converted into mechanical energy; Working in an environment with relatively good working conditions, which directly affects the limitations of equipment use, it is precisely because of such harsh working conditions that many advanced equipment cannot enter this area for construction, resulting in these areas The construction of the engineering work can only adopt the original operation method, such as using a single bucket excavator to excavate and use a car to reload, or use a train to reload, which causes a lot of waste of manpower and material resources, and high energy consumption and low production capacity. , the degree of mechanization is low; in the past, when the driving device of the excavator equipment was overloaded, the traditional transmission mode would cause overcurrent of the motor, tripping of the motor, broken teeth of the gear, accidental damage of the motor, and damage of some steel structures due to overload, etc. Although the traditional The transmission method is protected by torque-limiting couplings and other devices, but its reducer will still bear excessive loads, and the overload lasts for a long time, so that the mechanism and structure are always overloaded for a relatively long time, and the torque is limited. Couplings, hydraulic couplings, and motors generate heat, and the effect of traditional transmission methods on limiting overload is not very satisfactory; in addition, because the previous bucket wheel excavators were driven by electric motors, they could only work on land

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