Hydraulic rotating joint with large rotating angle

Hydraulic rotating joint with large rotating angle

  • CN 202,284,305 U
  • Filed: 10/21/2011
  • Issued: 06/27/2012
  • Est. Priority Date: 10/21/2011
  • Status: Active Grant
First Claim
Patent Images

1. hydraulic gyration joint that the angle of revolution is big;

  • Comprise revolving body (1) and gyroaxis (2);

    It is characterized in that;

    insert in the revolving body (1) from the top axial of revolving body (1) lower end of said gyroaxis (2);

    And the upper end of gyroaxis (2) is exposed to revolving body (1);

    Said gyroaxis (2) axially offers draining hole, a center, six working connection holes and a low pressure oil circuit hole, and the center of gyroaxis (2), the periphery in said six working connection pore size distribution draining holes in the center are located in draining hole, said center;

    The open upper end in draining hole, said center is pass-out from gyroaxis (2) upper end;

    The open upper end in said six working connection holes and said low pressure oil circuit hole is from the sidewall pass-out on gyroaxis (2) top, radially have on the said revolving body (1) six main hydraulic fluid ports and low pressure oil crossing with gyroaxis (2) on six working connection holes and corresponding one by one being connected of low pressure oil circuit hole, the lower end port in said six working connection holes is blocked with screw plug (10);

    The lower end of said revolving body (1) is provided with end cap (3);

    Said end cap (3) is through being bolted to the lower end of revolving body (1);

    Be provided with O type circle I (4) between the lower end of said revolving body (1) and the end cap (3);

    Be provided with back-up ring (5) and circlip for shaft (6) between the lower end of the lower end of said revolving body (1) and gyroaxis (2);

    Rotating seal ring (7), O type circle II (8) and dust ring (9) are housed in the annular groove between said revolving body (1) and the gyroaxis (2);

    This rotating seal ring (7) is made up of dust blowing ring (7.1) and O type circle III (7.2), and O type circle III (7.2) is fixed on the dust blowing ring (7.1), and dust blowing ring (7.1) is pressed on the gyroaxis (2).

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