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Hydraulic oil radiating system and engineering machinery

A technology of heat dissipation system and hydraulic system, which is applied in the direction of fluid pressure actuation system components, mechanical equipment, fluid pressure actuation devices, etc., to ensure the effect of normal operation

Inactive Publication Date: 2013-04-24
SANY AUTOMOBILE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a hydraulic oil cooling system and construction machinery to solve the problems of energy saving and noise reduction of the hydraulic oil cooling system, and to ensure the normal operation of the hydraulic system of construction machinery

Method used

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  • Hydraulic oil radiating system and engineering machinery

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Embodiment Construction

[0018] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0019] Such as figure 1 As shown, a hydraulic oil cooling system is located in the hydraulic system of construction machinery, including a hydraulic oil radiator 5, a fan 3, an air-cooled motor 2, a controller, a temperature sensor 4, and a hydraulic pump 1. The air-cooled motor 2 is a variable hydraulic motor, including a displacement control cylinder 7 and an electric proportional control valve 6 . The temperature sensor 4 is installed at the oil inlet of the hydraulic oil radiator 5 for detecting the temperature of the hydraulic oil at the oil inlet of the hydraulic oil radiator 5 . The air-cooled motor 2 drives the fan 3 to dissipate heat from the hydraulic oil radiator 5, the controller co...

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Abstract

The invention discloses a hydraulic oil radiating system which comprises a hydraulic oil radiator, a fan, an air cooling motor, a controller and a temperature sensor. The temperature sensor is used for detecting the temperature of an oil inlet or an oil outlet of the hydraulic oil radiator, the air cooling motor drives the fan to cooling the hydraulic oil radiator, and the controller controls rotation speed of the fan according to signals of the temperature sensor. The invention further provides engineering machinery. Energy saving, emission reduction and noise reduction can be achieved while guaranteeing regular work of the hydraulic system of the engineering machinery.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a hydraulic oil cooling system and construction machinery. Background technique [0002] At present, in the field of construction machinery, the hydraulic oil cooling system is the core of the entire cooling system. After the hot hydraulic oil is cooled by the radiator, it exchanges heat with the hydraulic oil in the oil tank, so that the temperature of the entire hydraulic system can be controlled in the system and each power component. within the acceptable range. [0003] Existing hydraulic oil heat dissipation systems generally use a quantitative motor to drive the fan to rotate. When the displacement of the quantitative motor is constant, the fan speed is constant, and the fan always works in a cooling power state. The hydraulic oil cooling device has no feedback adjustment, and when the hydraulic system generates little heat and the ambient temperature is low, it will...

Claims

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Application Information

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IPC IPC(8): F15B21/04
Inventor 罗福胜李建涛张涛
Owner SANY AUTOMOBILE MFG CO LTD
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