The invention discloses an electric shovel tensioning wheel device which comprises a tensioning wheel, a copper pad, a thrust washer, a sealing piece, a bearing seat, a copper sleeve, a limiting sleeve and a tensioning shaft, the copper pad is fixed to the side end face of the tensioning wheel, the thrust washer is arranged on the periphery of an extending cylinder part of the bearing seat in a sleeving mode and attached between the copper pad and a track frame, and the limiting sleeve is connected to the end of the tensioning shaft in a threaded mode. The copper sleeve is arranged between the tensioning shaft and the bearing seat in a sleeved mode, the two sides of the copper sleeve are limited by the copper pad and the limiting sleeve, the sealing piece is arranged on the periphery of the copper pad, the two side faces of the sealing piece are attached to the tensioning wheel and the thrust washer respectively, a first oil inlet hole is formed in the upper portion of the bearing seat, and a second oil inlet hole is formed in the side portion of the bearing seat. An oil guide groove is formed in the outer wall of the copper sleeve in the axial direction, the first oil guide hole communicates with the first oil inlet, the second oil guide hole is located in one end of the oil guide groove, and the other end of the oil guide groove communicates with the second oil inlet. The device is simple in structure, convenient to disassemble and assemble, low in maintenance workload, low in maintenance cost and long in service life, and the wear rate is remarkably reduced.
本发明公开了一种电铲拉紧轮装置,包括拉紧轮、铜垫、止推垫圈、密封件、轴承座、铜套、限位套和拉紧轴,铜垫固定于拉紧轮侧端面,止推垫圈套置在轴承座的延伸筒部外周并贴合在铜垫与履带架之间,限位套螺纹联接在拉紧轴端部,铜套套设在拉紧轴与轴承座之间且两侧由铜垫和限位套限位,密封件设置在铜垫外周且两侧面分别贴合拉紧轮和止推垫圈,轴承座上部设有第一进油孔、侧部设有第二进油孔,铜套设置有第一导油孔和第二导油孔,铜套外壁沿轴向设置有导油槽,第一导油孔与第一进油孔相互连通,第二导油孔位于导油槽的一端,导油槽的另一端连通于第二进油孔。本发明结构简单、拆装方便,磨损率显著降低,维护工作量小、维护成本低、使用寿命长。
Electric shovel tensioning wheel device and electric shovel crawler belt device
电铲拉紧轮装置及电铲履带装置
2025-04-15
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
SHOVEL, SHOVEL CONTROL DEVICE, AND SHOVEL SUPPORT DEVICE
European Patent Office | 2022
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