The invention discloses a low-cost safety balanced height regulating gantry crane. The low-cost safety balanced height regulating gantry crane comprises a main box body. A main gear cavity is arrangedin the main box body. A control cavity is communicated with the upper side of the main gear cavity. A magnet coil is fixedly connected with the upper end wall of the control cavity. A cooling belt pulley cavity extending backward is arranged on the lower side of the main cavity. The lower side of the cooling belt pulley cavity is provided with a motor fixedly connected with the main box body. Theupper end face of the motor is fixedly connected with a central shaft extending upward through the cooling belt pulley cavity and the main gear cavity into the control cavity. Four symmetrical screwsrotate to make the main box body and a main beam move upward, and the elevation of the main beam to meet the height requirements of lifting is achieved. Since height adjusting screws and a transmission route are all symmetrical, the four screws have high synchronization and good balance for lifting the main beam. If a contact block contacts upper and lower contact switches, the motor will stop working to prevent accidents caused by the over travel of the position of the main beam.
本发明公开了一种低成本安全性平衡调高门式起重机;包括主箱体,主箱体内设有主齿轮腔,主齿轮腔上侧连通设有控制腔,控制腔上端壁固定连接有磁铁线圈,主齿轮腔下侧设有向后延伸的冷却带轮腔,冷却带轮腔下侧设有与主箱体固定连接的电机,电机上端面固定连接有向上延伸贯穿冷却带轮腔和主齿轮腔至控制腔内的中心轴,四个对称螺杆转动,从而使主箱体和主梁向上运动,实现主梁的抬高以满足吊运的高度需求,由于调高螺杆和传动路线都是对称的,故四个螺杆对主梁抬高的同步性高,平衡性好,若接触块接触到上下接触开关,则电机停止工作,以防主梁位置超程而出现事故。
Low-cost safety balanced height regulating gantry crane
一种低成本安全性平衡调高门式起重机
2020-11-06
Patent
Elektronische Ressource
Chinesisch