Self-locking semi-automatic exchange double-drum pressure pipeline filter
A pressure pipeline, semi-automatic technology, applied in the direction of fluid pressure actuating device, fluid pressure actuating system components, mechanical equipment, etc., can solve the problems of inconvenient installation, troublesome switching of the balance valve, etc., to prevent oil leakage and reduce gas. The effect of eclipse
Active Publication Date: 2014-05-28
LIMING HYDRAULIC CO LTD
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Problems solved by technology
[0003] In order to overcome the inconvenience of switching the balance valve and inconvenient installation of the existing double-cylinder pressure line filter when replacing the filter element, the present invention provides a self-locking type semi-automatic switching type double-cylinder pressure line filter, which automatically The lock-type semi-automatic switching duplex pressure line filter can semi-automatically switch the balance valve, and the oil inlet and oil outlet are in a straight line, especially suitable for pressure line installation
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[0024] like Figure 1 to Figure 9 As shown, a self-locking type semi-automatic switching double cylinder pressure line filter, including a filter head 9, the filter head 9 is provided with an exhaust screw plug 6, and the filter head 9 is also provided with a differential pressure sensor. A valve cover 19 is installed on the filter head 9, and the valve cover 19 and the filter head 9 are tightly connected and fixed by screws 18. The bottom of the filter head 9 is provided with a working filter cartridge 22 and a spare filter cartridge 23. The working filter cartridge 22 and the spare filter cartridge 23 have the same structure, including a cylinder body 11. The bottom of the cylinder body 11 is provided with an oil drain screw plug 13. A filter element 12 is arranged inside the body 11, and a check valve 10 is arranged at the top oil outlet of the filter element 12, and the two are closely connected. The cylinder body 11 is connected with the filter head 9 through the thread ...
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The invention discloses a self-locking semi-automatic exchange double-drum pressure pipeline filter, which relates to the technical field of hydraulic filters and comprises a filter head; the filter head is provided with a valve deck; the bottom part of the filter head is provided with a working filter drum and a standby filter drum; a balance reversing valve spool is arranged in the filter head; and a balance reversing valve is arranged in the balance reversing valve spool. The self-locking semi-automatic exchange double-drum pressure pipeline filter disclosed by the invention is capable of semi-automatically switching the balance reversing valve, and moreover, an oil inlet and an oil outlet are arranged on the same straight line, thereby, the self-locking semi-automatic exchange double-drum pressure pipeline filter is especially suitable for installing pressure pipelines.
Description
Technical field [0001] The invention relates to a hydraulic filter, in particular to a double-tube online switchable pressure pipeline filter, which is a filter for filtering particle pollutants in a hydraulic working medium. Background technique [0002] At present, the existing duplex pressure line filters can be divided into: pipe installation, flange installation and plate installation according to their installation forms, and the installation forms of double cylinder medium and high pressure filters are generally plate installation, that is, , The oil outlet is on the same plane. Plate-mounted double-cylinder pressure line filter, generally its two cylinders are installed on a block filter head, or it is composed of two independently working filters, a reversing valve, and a balance valve, so as to realize online replacement of filter elements. When replacing the filter element of the traditional duplex pressure line filter, first open the balance valve, then pull the...
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IPC IPC(8): F15B21/04
Inventor 周乃希易际川姚银军叶萍
Owner LIMING HYDRAULIC CO LTD