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A hydraulic device for adjusting the lifting ratio of snow removal roller brushes

A proportional adjustment and hydraulic device technology, which is applied to fluid pressure actuation devices, snow surface cleaning, servo motors, etc., can solve the problems of ineffective cleaning of roller brushes and low control accuracy, and achieve effective contact and weight support, and improve Accuracy and controllability, effect of improving snow removal quality

Active Publication Date: 2015-08-12
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the above problems and provide a hydraulic device for adjusting the lifting ratio of the snow removal roller brush, which solves the problem that the existing roller brush and the ground distance adjustment control accuracy is low, which leads to the roller brush not being able to effectively clean the snow on the ground. Provide a lifting adjustment solution with controllable working pressure of roller brush for long-range roller brush snow removal work such as airports

Method used

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  • A hydraulic device for adjusting the lifting ratio of snow removal roller brushes
  • A hydraulic device for adjusting the lifting ratio of snow removal roller brushes

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Embodiment Construction

[0010] like figure 1 , figure 2 As shown, the present invention includes a hydraulic oil tank 1, an integral lifting cylinder, a left support wheel cylinder 18, a right support wheel cylinder 17 and a set of control systems for a rolling brush lifting cylinder device; the integral lifting cylinder includes an integral lifting left cylinder 7, an integral Lifting right cylinder 8; the rod chamber and rodless chamber of the two oil cylinders on the left and right sides of the overall lifting are connected to each other, and the rodless chambers of the two oil cylinders on the left and right sides of the overall lifting are connected with the three-position four-way reversing proportional valve 5 of the overall lifting cylinder Connected, the floating valve 6 of the integral lifting cylinder is installed between the rod cavity of the two oil cylinders on the left and right sides of the overall lifting and the three-position four-way reversing proportional valve 5 of the integral...

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Abstract

The invention discloses a hydraulic device for adjusting the ascending and descending proportions of a snow-removing roll brush. The device comprises a metering pump, a combined electromagnetic overflow valve, a coarse oil filter, a fine oil filter with an oil stain display, three two-position three-way electro-hydraulic proportional valves, two balance valves, a two-position two-way floating valve, four oil cylinders, three oil pressure sensors, three oil cylinder position sensors and a set of PLC (Programmable Logical Controller) control system for electro-hydraulic control. According to the device, a roll brush elevating mechanism can be controlled to adjust the ascending and descending distances proportionally, effective contact between the roll brush and the ground as well as between support wheels and the ground is adjusted automatically according to the pressure of a roll brush motor, the snow-removing quality is improved, and adaptation to removing snow on road surfaces of different flatness is achieved.

Description

technical field [0001] The invention belongs to the technical field of road snow removal, and relates to a hydraulic device for adjusting the lifting ratio of snow removal roller brushes. Background technique [0002] The snow removal roller brush is an effective mechanical snow removal device. It is often used together with other snow removal equipment such as snow shovels. The effective contact between the roller brush and the ground is an effective guarantee for high-quality snow removal. Most of the existing snow removal roller brushes are temporarily installed on the front of trucks, loaders, graders and other equipment during snow removal in winter. Most of the roller brush lifting cylinders are controlled by on-off valves, which are manually operated by the operator, and the control accuracy of the lifting distance is low. , it is difficult to ensure the effective contact between the roller brush and the ground. For large-sized roller brushes, such as those with a le...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/16E01H5/09
Inventor 于立民
Owner CHINA MCC17 GRP
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