Loader side unloading hydraulic system
A hydraulic system and loader technology, applied in the field of hydraulic systems, can solve problems such as the limit of the side unloading device of the loader, and achieve the effects of improving reliability, improving driving comfort, and eliminating mass inertia
Active Publication Date: 2017-12-15
GUANGXI LIUGONG MASCH CO LTD
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Problems solved by technology
[0015] The technical problem to be solved by the present invention is to provide a loader side unloading hydraulic system with a limit buffer function for the limit problem of the existing loader side unloading device
Method used
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Embodiment Construction
[0022] The specific implementation will be described below in conjunction with the accompanying drawings.
[0023] The side unloading hydraulic system of the loader in the present invention includes a distribution valve 1, a first switching valve 2, a side unloading oil cylinder 3, a second switching valve 4, a third switching valve 5, a safety valve 6, an accumulator 7, a first A sensor 8 , a second sensor 9 , a controller 10 , and a hydraulic oil tank 11 .
[0024] Such as figure 1 As shown, the distribution valve 1 has a working port A, a working port B and an oil inlet, and the oil inlet is used to connect with a pressure oil source such as a hydraulic pump (not shown in the figure); the working A port and the working B port of the distribution valve 1 The small chamber R and the large chamber H of the side unloading cylinder 3 are respectively communicated with through the pipeline; the large chamber H of the side unloading cylinder 3 is connected with the accumulator 7 ...
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The invention relates to a lateral unloading hydraulic system of a loading machine. In order to solve the limiting problem of an existing loading machine lateral unloading device, the lateral unloading hydraulic system of the loading machine is provided and comprises a distribution valve, a lateral unloading oil cylinder, a controller, a first switch valve, a second switch valve, a third switch valve, a controller, a first sensor, a second sensor, an energy accumulator and a hydraulic oil tank; a work port A and a work port B of the distribution valve are correspondingly communicated with a small cavity and a large cavity of the lateral unloading oil cylinder through pipelines, the first switch valve, the second switch valve and the third switch valve are electromagnetic valves with the control ends connected with the controller, the first sensor and the second sensor are connected with the controller, the first switch valve is arranged on an oil path between the work port A of the distribution valve and the large cavity of the lateral unloading oil cylinder, the second switch valve is arranged on a connecting oil path between the large cavity of the lateral unloading oil cylinder and the energy accumulator, and the third switch valve is connected to a connecting oil path between the energy accumulator and the hydraulic oil tank; the internal impact in the hydraulic system can be effectively solved, reliability of the system is improved, meanwhile, the noise pollution generated during collision is solved, and driving comfort is improved.
Description
technical field [0001] The invention relates to a hydraulic system, in particular to a loader side unloading hydraulic system. Background technique [0002] One end of the side discharge bucket of the loader is hinged on the bucket bracket, and the side discharge cylinder is connected between the bucket and the bracket. When the piston rod of the side discharge cylinder is stretched out, the side discharge bucket rotates around the hinged end, and the shovel The material in the bucket is discharged from the end of the bucket; when the piston rod of the side unloading cylinder retracts, the side unloading bucket rotates around the hinged end and falls back, and is placed on the bracket. Since the bucket must be placed on the bracket at the end, in order to buffer the impact when the side unloading bucket falls back to the bracket, a buffer device is provided. Currently, the buffer devices used on the side unloading device of the loader mainly include the following types: [...
Claims
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IPC IPC(8): F15B1/02F15B21/08E02F3/42
CPCE02F3/425F15B1/021F15B21/08
Inventor 董晓锋王创波黄胤真刘万天
Owner GUANGXI LIUGONG MASCH CO LTD