Hydraulic crane

Abstract

The invention relates to the technical field of cranes, in particular to a hydraulic crane which comprises a crane body, a case is fixedly connected to the lower end of the crane body, a controller is fixedly connected to the rear side of the upper end of the case, an air inlet is formed in one side of the case, and an air outlet is formed in the other side of the case. A hydraulic oil tank is fixedly connected to the front side of the bottom face in the machine box, a hydraulic pump is fixedly connected to the left side in the machine box, an oil pumping pipe is fixedly connected to the lower side of the rear end of the hydraulic pump, an oil conveying pipe is fixedly connected to the upper side of the rear end of the hydraulic pump, and a water tank is fixedly connected to the rear side of the bottom face in the machine box. A ventilation opening is formed in the upper end of the water tank. According to the hydraulic crane, the temperature of hydraulic oil in the hydraulic oil tank can be rapidly reduced, water in the water tank can be cooled, the water in the water tank can be kept at the low temperature, and therefore the hydraulic oil in the hydraulic oil tank can be continuously and effectively cooled.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a hydraulic crane. Background technique [0002] Crane refers to a multi-action hoisting machine that vertically lifts and horizontally transports heavy objects within a certain range. Some lifting equipment is characterized by intermittent movement, that is, taking, moving, unloading and other actions in a working cycle. The corresponding mechanisms work alternately; however, after the hydraulic crane runs for a long time, the temperature of the hydraulic oil in the hydraulic system will increase significantly, and the temperature of the hydraulic oil cannot be reduced to a safe temperature only by relying on the independent heat dissipation of the hydraulic oil. For the above problem, we propose a hydraulic crane. SUMMARY OF THE INVENTION [0003] The main purpose of the present invention is to provide a hydraulic crane, and the specific problem to be solved by the present in...

AI Technical Summary

Problems solved by technology

[0002] A crane refers to a multi-action hoisting machine that lifts vertically and transports heavy objects horizontally within a certain range. The working characteristics of lifting equipment are intermittent movements, that is, the actions of taking, moving, and unloading in a working cycle. The corresponding mechanisms work alternately; however, after the hydraulic crane has been in operation for a long time, the temperature of the hydraulic oil in the hydraulic system will increase significantly, and it is completely impossible to reduce the temperature of the hydraulic oil to a safe temperature only by relying on the independent heat dissipation of the hydraulic oil. To solve the above problems, we propose a hydraulic crane

Images