Swivel joint
A technology of rotary joint and rotary body, applied in the direction of pipe/pipe joint/pipe fitting, adjustable connection, passing element, etc. The effect of convenient operation and maintenance, reducing labor intensity and improving applicability
Inactive Publication Date: 2013-04-24
JIANGSU CHANGLING HYDRAULIC CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, the sealing performance between the rotary joint and the outside world in the past is poor, and the dust from the outside is easy to get into the rotary joint, which affects the performance of the rotary joint, and the oil in the rotary joint is also easy to leak out. The rotation also has an impact, requiring frequent oiling, which increases the labor intensity of the workers
[0004] Moreover, after the conventional swivel joint connects the hydraulic pipelines of the fixed part and the rotating part in the hydraulic system, the fixed part and the rotating part cannot be rotated 360° relative to each other, which will cause interference in the pipelines, and the upper and lower oil channels are not smooth, and the oil channels Action series
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] See Figure 1 to Figure 4 , The present invention relates to a rotary joint, which includes a rotary body 1 and a rotary shaft 2. The rotary shaft 2 is composed of an upper pipeline connection section 2.1 and a lower installation section 2.2. The lower installation section 2.2 of the rotary shaft 2 is from the rotary body The upper end of 1 is axially inserted into the revolving body 1, the upper pipeline connecting section 2.1 is exposed to the revolving body 1, a water seal ring 3 is provided between the upper end of the revolving body 1 and the upper pipeline connecting section 2.1, and the water The sealing ring 3 is used to prevent gas from leaking or entering. The lower end of the lower installation section 2.2 is horizontally aligned with the lower end of the revolving body 1. The lower end of the revolving body 1 is fixed with an end cover 4 by bolts. An O-ring 5 is arranged between the lower end and the end cover 4. The annular groove between the rotating body 1...
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
Login to View More Abstract
The invention relates to a swivel joint which is mainly applied to hydraulic systems of machines like cranes and land levelers. The swivel joint comprises a swivel body (1) and a swivel shaft (2). The swivel joint is characterized in that a central oil discharge hole, four main oil way holes and three low-pressure oil holes are axially formed in the swivel shaft (2). The central oil discharge hole is formed in the center of the swivel shaft (2). A rotary seal ring (6) and a dust-proof ring (7) are installed inside an annular groove formed between the swivel body (1) and the swivel shaft (2). Two lip mouths (7.1) up and down are formed on one side, contacting with the swivel shaft (2), of the dust-proof ring (7) to form double lip mouths. Both the two lip mouths (7.1) up and down are tightly attached to the outer wall of the swivel shaft (2). The swivel joint has the advantages that dust cannot enter easily, oil cannot leak out easily, a fixed part of a hydraulic system and a movable part of the hydraulic system can rotate by 360 degrees relatively, oil ways are smooth, and action of all the oil ways are not in series connection.
Description
Technical field [0001] The invention relates to a rotary joint, which is mainly used in the hydraulic system of cranes, graders and other machinery. It is a connecting piece connecting the fixed part and the rotating part of the hydraulic pipeline in the entire hydraulic system, and belongs to the technical field of engineering machinery. Background technique [0002] The upper and lower parts of cranes, motor graders, etc. need to be rotated, which causes the connection problem between the rotary part and the fixed part of the oil circuit. The rotary joint is composed of a rotary body, a rotary shaft and a cover. When in use, the revolving body is fixed with the lower revolving platform of the crane and the grader, and the mounting plate on the revolving shaft is connected with the revolving support on the upper revolving platform. The hydraulic hoses are respectively installed on the oil ports of the revolving body and the revolving shaft, and the upper platform of the hydraul...
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
Login to View More IPC IPC(8): F16L27/087
Inventor 夏泽民张爱军陈酉冰潘逸明高海波朱江华
Owner JIANGSU CHANGLING HYDRAULIC CO LTD