Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of gear bearing sealing structure

A technology of bearing seals and cones, which is applied in construction and other directions, can solve problems such as unreliability, failure to achieve sealing, and single sealing structure, and achieve the effect of reliable performance and simple structure

Active Publication Date: 2015-11-11
黑龙江豪利斯能源发展集团股份有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most roller cone bit bearings adopt a metal seal structure, using the annulus of the bimetal seal ring to contact and give a pre-tightening force to maintain the axial dynamic seal. The sealing effect in the radial direction is not achieved. The sealing structure is single and unreliable.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of gear bearing sealing structure
  • A kind of gear bearing sealing structure
  • A kind of gear bearing sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, by figure 1 combine figure 2 As shown, the cone bearing sealing structure includes a palm 1, the shaft of the palm 1 is placed in the central hole of the cone 2 and the shaft of the palm 1 is connected with the central hole of the cone 2, and the palm 1 is connected with the central hole of the cone 2. There is a journal step 3 at the root of the center hole of the cone 2, the journal step 3 is integrated with the shaft of the tooth palm 1, and a sealing ring 4 is placed between the journal step 3 and the cone 2, and the sealing ring 4 The cross section of the sealing ring 4 is rectangular, and the outer surface of the sealing ring 4 is in close contact with the axial surface of the journal step 3 to seal, so as to ensure that the drilling fluid cannot enter the shaft to achieve sealing. There are two connection methods between the inner hole of the sealing ring 4 and the shaft of the tooth palm 1. One way is that there is a gap between the inner diamete...

Embodiment 2

[0028] Embodiment 2, by figure 1 combine image 3 As shown, on the basis of Embodiment 1, the axial surface of the journal step 3 is provided with an annular boss 10 or a groove along the circumferential direction, and the upper and outer end faces of the sealing ring 4 are provided with an annular groove 7 or groove along the circumferential direction. The convex rib, the annular boss 10 is connected with the annular groove 7, that is, the contact surface between the sealing ring 4 and the journal step 3 changes from a flat surface to a concave-convex surface, and the change from a flat surface to a concave-convex surface means that the roller cone bit is drilling. During the process, the path of drilling fluid entering the shaft of the palm 1 is lengthened, and several right-angle bends are added, which greatly increases the difficulty of drilling fluid entering the shaft of the palm 1. This structure effectively improves the sealing effect.

Embodiment 3

[0029] Embodiment 3, by figure 1 combine Figure 4 As shown, on the basis of Example 1, in order to improve the machining accuracy and select better materials, a journal sealing ring 9 is provided between the root of the shaft of the tooth palm 1 and the sealing ring 4 . A journal sealing ring 9 replaces the journal step 3 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a cone bearing sealing structure. In order to overcome the defects in the prior art, the invention provides a cone bearing sealing structure capable of realizing the simultaneous sealing in the axial direction and the radial direction. The cone bearing sealing structure comprises a cone leg, a shaft neck step and a cone sealing ring, wherein an outer ring of the sealing ring is fixedly connected with an inner hole of a cone, the annular surface of one side, near the cone, of the sealing ring is fixedly connected with the cone, the inner hole of the sealing ring is in interference fit connection with a shaft of the cone leg, the annular surface of one side, near the cone leg, of the sealing ring is subjected to reinforced treatment, and the inner annular surface of the sealing ring is subjected to reinforced treatment. The inner hole and the annular surface to be sealed of the sealing ring are subjected to reinforced treatment through utilizing the elasticity of the sealing ring, so a bearing of a cone drill simultaneously realizes the axial and radial sealing, and the cone bearing sealing structure has the characteristics that the structure is simple, and the performance is reliable.

Description

Technical field: [0001] The invention relates to the field of sealing of a roller cone bit bearing, in particular to a new sealing structure of a roller cone bearing. Background technique: [0002] At present, most roller cone bit bearings adopt a metal seal structure, and the ring surface of the bimetallic seal ring is used to contact and give a preload to maintain the axial dynamic seal. The sealing effect in the radial direction is not achieved, and the seal structure is single and unreliable. Invention content: [0003] In order to overcome the disadvantages of the background technology, the present invention provides a new sealing structure of the cone bearing with simultaneous axial and radial sealing, which uses the elasticity of the rubber itself for preloading, has a simple structure and is reliable in operation. [0004] The technical solution of the present invention is: the cone bearing sealing structure includes a tooth palm, the root of which the shaft of the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/25
Inventor 李生
Owner 黑龙江豪利斯能源发展集团股份有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com