{
  "$type": "site.standard.document",
  "description": "A welding shaft and a wheel assembly for a universal wheel, and a universal wheel are disclosed. The welding shaft comprises a big wheel welding shaft and a small wheel welding shaft, wherein the big wheel welding shaft comprises a big wheel welding shaft body, a big wheel welding shaft retainer…",
  "path": "/patents/1420519",
  "publishedAt": "2023-07-26T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B23K31/02",
    "IF HEALTH XIAMEN INTELLIGENT TECH CO LTD [CN]"
  ],
  "textContent": "A welding shaft and a wheel assembly for a universal wheel, and a universal wheel are disclosed. The welding shaft comprises a big wheel welding shaft and a small wheel welding shaft, wherein the big wheel welding shaft comprises a big wheel welding shaft body, a big wheel welding shaft retainer ring and a big wheel welding shaft fixing head which are sequentially assembled into a whole, and the small wheel welding shaft comprises a small wheel welding shaft body, a small wheel welding shaft retainer ring and a small wheel welding shaft fixing head which are sequentially assembled into a whole. The wheel assembly for a universal wheel comprises a wheel shaft fixing plate, the welding shaft, a big wheel and a small wheel. The universal wheel comprises an outer protection plate, an outer fixing plate, a wheel shaft drive connector, multiple wheel assemblies, an inner fixing plate, an inner protection plate, and multiple shock absorption assemblies. The layout is more reasonable, the big wheel and the small wheel are regularly distributed on the same circumference, stress is uniform, transition is smoother, turning is more accurate, slipping is unlikely to occur, abrasion is small, the service life is long, and production and maintenance costs are reduced.",
  "title": "WELDING SHAFT AND WHEEL ASSEMBLY FOR UNIVERSAL WHEEL AND UNIVERSAL WHEEL"
}