Hydraulic crane for deformable tractor

• Main Authors: ZONGFAN WU, DIXIAN LIU, JINGMIN TIAN
• Format: Patent
• Language: English
• Published: 21.05.2003
• Edition: 7
• Subjects: CRANES; HAULING; HOISTING; LIFTING; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES; PERFORMING OPERATIONS; TRANSPORTING

A derivative tractor hydraulic crane is included by the connection of an upright post, a rotating sleeve, a bearing, an upper gland bush, a lower gland bush, a nut, a locking plate, a fixed arm, a movable arm, a suspension-arm component, an oil cylinder seat and an oil cylinder, etc. When in assembling and in use, the hydraulic crane is fixed on a frame cross member of the derivative tractor through the upright post, and the hydraulic circuit of the tractor is communicated with the oil cylinder of the utility model through an external oil-delivering pipe. The suspension-arm component can be lifted from up to down and can rotate 360 degrees along with the upright post, therefore, the utility model can affiliate the self-loading and the self-unloading of the cement prefabricated component and the heavy integral component on the aspects such as the agriculture, the water conservancy and the capital construction, etc. When the hydraulic crane is not used, the suspension-arm component and the movable arm of the hydraulic crane can be removed from the tractor at any time. The hydraulic crane can reduce the labor intensity of the manual handling, save the handling time and guarantee the handling safety, and operate simply, and can reduce the handling cost.