Working pipe system of belt conveyor with flexible start speed regulating device

Abstract

The invention relates to a working system of a belt conveyor with a flexible start speed regulating device, which solves the problems of the complex structure of the prior art because multiple pumps and motors are arranged outside a box body and large difficulty in installation and removal because the working pipe system is in seamless steel pipe rigid connection and inconvenience in cleaning because of connection with a built-in oil filter. The working system is characterized in that an oil suction filter which is installed outside a lower box body is connected to a gear oil pump by virtue ofa first metal bellows, the gear oil pump is connected with a first horizontal straight pipe in the lower box body by virtue of a second metal bellows and an elbow, and a sealing flange is installed in the contact position of the elbow and the outer surface of the lower box body. The working system has the beneficial effects that power is supplied to the gear oil pump by a driving gear installed on an input shaft, an external suckback device is replaced by a built-in hydraulic oil suckback device, the structure is simple and compact, the piping layout is optimized, and the pipe installation accuracy is reduced by utilizing the fine adjustment of flexibility of the metal bellows, so that the installation and removal of pipes are simple, and the installation, removal and overhaul of an oil system are convenient.

Description

technical field [0001] The invention belongs to the technical field of hydraulic transmission, and in particular relates to a working piping system of a flexible start-up speed regulating device that can be loaded by a belt conveyor. Background technique [0002] In the prior art, the belt conveyor can be loaded with flexible start speed regulating device including box body, box cover, turbine shaft, pump wheel shaft, driving gear, back wheel, pump wheel, rotating shell, draft pipe device and oil supply system . The belt conveyor is the main equipment for transporting bulk materials. The driving system of the large-capacity, long-distance belt conveyor usually consists of two or more motors. For example, the invention patent with the application number CN201310312302.8 (notification number: CN103343805B) proposed by the applicant discloses a "flexible start-up speed control device with load power isolation for belt conveyors". The oil pump is changed to an oil supply pump ...

AI Technical Summary

Problems solved by technology

For example, the invention patent with the application number CN201310312302.8 (notification number: CN103343805B) proposed by the applicant discloses a "flexible start-up speed control device with load power isolation for belt conveyors". The oil pump is changed to an oil supply pump with its own motor and a lubrication pump with its own motor, a total of 2 oil pumps; the original oil supply pump driven by the pump wheel shaft and driven by the driven gear is installed with a newly added electromagnetic brake at the installation position; The oil pump is driven by the external motor of the oil supply pump to provide the working oil required by the working chamber composed of the pump wheel and the turbine. The purpose of this improvement is to make the electromagnetic brake have high speed and low torque between the motor and the reducer. The characteristic coupler achieves braking on the pump wheel shaft, which reduces the braking torque requirement, makes the selection of the electromagnetic brake smaller, reduces the difficulty of technical implementation, and the cost of the electromagnetic brake body is low. Braking on the pump wheel shaft has the problem of insufficient braking force. Moreover, the working piping system of the equipment is more complicated, adding an oil supply pump with a motor and a lubrication pump with a motor, plus a return oil pump and a return oil pump. The electric motor requires 3 pumps and 3 motors, and the 3 pumps and 3 motors are all set outside the box

The applicant's subsequent application number is CN201621436149.5 (CN206338380U) and the technical solution disclosed in the utility model titled "Built-in Hydraulic Oil Suckback Device of Speed ​​Regulating Type Hydraulic Coupler" has built-in oil supply and discharge pipelines. , to reduce and reduce the problem of aging and leakage of pipeline components due to high temperature failure, but the working piping system outside the box is all seamless steel pipes, and the joints are rigidly connected by flanges, and there is no installation adjustment margin. It makes installation and disassembly more difficult; in addition, in the prior art, the oil filter in the working piping system is installed horizontally in the box, and the working piping is outside the box, requiring two 90-degree elbow connections. Inconvenient, and it is also very inconvenient to clean the oil suction filter element

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