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Hydraulic oil circulating cooling system and circulating cooling method for telescopic boom forklift

A technology of circulating cooling system and telescopic forklift truck, applied in the directions of fluid pressure actuating system components, fluid pressure actuating devices, lifting devices, etc., can solve the problems of inability to use volume and power, omission of coolers, space occupation, etc. , to achieve the effect of improving system heat dissipation capacity, easy structure upgrade and optimization, and reasonable layout

Pending Publication Date: 2022-07-29
XUZHOU XUGONG SPECIAL CONSTR MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first oil inlet pipe, the second oil inlet pipe, the first oil return pipe, and the second oil return pipe of the utility model cooling system are optimized according to the arrangement of coolers, filters, motors and oil pumps, etc., so that the cooling system has a compact structure , but no matter how compact the layout is, in order to ensure the effect of circulating cooling, it is not possible to use a radiator with a smaller volume and power, let alone omit the cooler directly, and the space is still occupied.

Method used

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  • Hydraulic oil circulating cooling system and circulating cooling method for telescopic boom forklift
  • Hydraulic oil circulating cooling system and circulating cooling method for telescopic boom forklift
  • Hydraulic oil circulating cooling system and circulating cooling method for telescopic boom forklift

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] like figure 1 and figure 2As shown, a hydraulic oil circulation cooling system of a telescopic forklift includes a hydraulic oil source 1, a hydraulic power source 3, a hydraulic actuator 5, an axle box cavity (a front steering drive axle 7 and a rear steering drive axle 9 connected in series) ) and the radiator 11, the hydraulic oil source 1 and the hydraulic power source 3 are connected by a hydraulic oil pipe one 2, and the hydraulic power source 3 and the hydraulic actuator 5 are connected by a hydraulic oil pipe two 4, The hydraulic actuator 5 and the front steering drive axle 7 are connected through a hydraulic oil pipe 6 , and a hydraulic oil pipe 8 is connected between the front steering drive axle 7 and the rear steering drive axle 9 . The steering drive axle 9 and the radiator 11 are connected by a hydraulic oil pipe four 10, and the radiator 11 and the hydraulic oil source 1 are connected by a hydraulic oil pipe five 12; the hydraulic oil source 1 is inject...

Embodiment 2

[0042] As another cooling method of the present application, the radiator in the first embodiment is removed, and the hydraulic oil pipe 4 10 and the hydraulic oil pipe 5 12 are directly connected; air cooling is provided at the location of the radiator. Radiator, the air-cooled radiator is used to accelerate the flow between the front steering drive axle 7 and the rear steering drive axle 9 and the cooling air. The air-cooled radiator does not participate in the oil circulation, but can strengthen the axle housing. cooling efficiency.

Embodiment 3

[0044] like image 3 As shown in the figure, as another cooling method of the present application, removing the radiator 11 in the first embodiment, taking a 3-ton telescopic forklift as an example, can save at least 30KG in weight and 25L in space occupation. The oil pipe four 10 is directly connected with the hydraulic oil pipe five 12, and the metal axle housing of the front steering drive axle 7 and the rear steering drive axle 9 is directly used for heat dissipation, and the oil temperature of the entire circulating cooling system can be maintained at 65 ℃ It can meet the normal working oil temperature (below 80℃) requirements of the hydraulic system.

[0045] The oil flow path is to enter the hydraulic power source 3 from the hydraulic oil source 1 through the hydraulic oil pipe 1 2 . Driven by the hydraulic power source 3 , the oil enters the hydraulic oil pipe 2 4 into the hydraulic power source 3 . The hydraulic actuator 5 drives the motor to act, and the high-temper...

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PUM

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Abstract

The hydraulic oil circulating cooling system comprises a hydraulic oil source, a hydraulic power source, a hydraulic execution element, a bridge box cavity and a heat dissipation element which are connected in series, and hydraulic oil containing an extreme pressure anti-wear agent is injected into the hydraulic oil source. The hydraulic oil circulating cooling system is used for the layout of the whole vehicle, main parts of the whole vehicle are contained in the hydraulic oil circulating cooling system for cooling the whole vehicle, the heat dissipation capacity of the system is greatly improved, the requirement for the power of a radiator with independent heat dissipation is reduced, and even a special radiator and a special hydraulic oil tank are not needed; and the structure of the whole vehicle is easier to upgrade and optimize. The invention is suitable for various engineering machinery vehicles, and has high popularization and applicability.

Description

technical field [0001] The invention relates to the technical field of forklift circulation cooling, in particular to a hydraulic oil circulation cooling system and a circulation cooling method of a telescopic arm forklift. Background technique [0002] The hydraulic oil circulation cooling system involves the cooling of the hydraulic system of various mechanical equipment. It is ubiquitous in the practical application of various types of machinery and equipment. With the upgrading and optimization of various types of machinery and equipment, the structure becomes more and more compact, and the cooling demand of hydraulic systems in various types of machinery and equipment is still tight. However, in the whole machine system, the path of the hydraulic oil circulation cooling system is getting shorter and shorter, and the power demand for the radiator becomes larger, which increases the occupation of the whole vehicle space by the hydraulic oil circulation cooling system, and...

Claims

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Application Information

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IPC IPC(8): F15B21/0423B66F9/22B66F9/075
CPCF15B21/0423B66F9/075B66F9/22
Inventor 秦震李凯王伟
Owner XUZHOU XUGONG SPECIAL CONSTR MASCH CO LTD