Sealed type agricultural machinery transmission shaft universal joint assembly
By using a combined design of needle roller, sealing ring and dust cover in the universal joint of the agricultural machinery drive shaft, the problem of poor sealing is solved, and a higher sealing effect and longer service life is achieved, while reducing the complexity and cost of production and assembly.
CN222633684UActive Publication Date: 2025-03-18HEBEI LIYUAN AGRI MASCH MFG CO LTD
1 Cites 1 Cited by
Patent Information
- Application Number
- CN202421599335.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-07-08
AI Technical Summary
Technical Problem
The universal joints of the existing agricultural machinery transmission shaft have poor sealing properties and are prone to adsorbing dust and mud, affecting performance and service life.
Method used
The design includes a needle roller, a sealing ring and a dust cover. The needle roller is arranged between the journal and the sleeve. The sealing ring is flexible in contact with the sleeve through the outer lip, inner lip and protrusion to form a seal. The dust cover sleeve is set on the journal to enhance the sealing effect.
Benefits of technology
It effectively avoids dust adsorption between the sleeve and the journal, improves the sealing effect of the universal joint, extends its applicable life, and reduces processing difficulty, production cost and assembly efficiency.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses a sealing type agricultural machinery transmission shaft universal joint assembly which comprises a cross shaft body, shaft necks and shaft sleeves, the shaft necks and the cross shaft body are integrally formed, the shaft sleeves are movably connected to the four shaft necks in a sleeved mode respectively, rolling needles are arranged on the outer walls of the tops of the shaft necks, and a first step and a second step are arranged at the bottoms of the shaft necks. The bottom surface of the dustproof cover is in contact with the top surface of the second step; the sealing ring is fixed on the top surface of the dustproof cover; the sealing ring comprises an outer lip, an inner lip and a protrusion, the outer lip makes flexible contact with the outer wall of the shaft sleeve to form sealing, the inner lip makes flexible contact with the inner wall of the shaft sleeve and the side wall of the first step to form sealing, and the protrusion is located between the outer lip and the inner lip and makes flexible contact with the bottom face of the shaft sleeve to form sealing. The universal joint has the technical advantages of being small in machining difficulty, low in manufacturing cost and high in assembling efficiency, the sealing effect of the universal joint is improved, and the service life of the universal joint is prolonged.
Need to check novelty before this filing date? Find Prior Art