Hydraulic power unit
A hydraulic power device and movable plug technology, which is applied in the field of hydraulic motors, can solve problems such as large torque pulsation, small starting torque, and low-speed stability, and achieve the effects of large torque, high working precision, and stable performance
Inactive Publication Date: 2014-12-17
谷利伟
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Problems solved by technology
However, the existing hydraulic motors have some disadvantages such as large torque pulsation, low efficiency, small starting torque and poor low-speed stability, etc.
Method used
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Embodiment Construction
[0022] Such as Figure 1-8 As shown, the embodiment of the present invention is specifically a hydraulic power device, including a housing 1 and a water inlet and outlet device 2, the water inlet and outlet device 2 includes a water inlet and outlet pipe 21, and the water inlet and outlet pipe 21 is provided with a water inlet chamber 211 and a water outlet chamber 212 , the water inlet and outlet pipes 21 are successively sleeved with two turntables 3 coaxially arranged side by side, and the outer sidewall of the turntable 3 and the inner sidewall of the housing 1 form an annular channel 4 . A movable plug 5 that can slide along the annular channel 4 is provided on the outer wall of the turntable 3 , and the movable plug 5 is in dynamic and sealing cooperation with the annular channel 4 . The movable plug 5 is provided with a switching through hole 51 penetrating through the movable plug 5 , and both ends of the switching through hole 51 communicate with the space where the a...
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The invention discloses a hydraulic power unit which comprises a shell and a water inlet and outlet device. The water inlet and outlet device comprises a water inlet and outlet pipe in which a water inlet cavity and a water outlet cavity are arranged; two turnplates are sequentially sleeved on the outside of the water inlet and outlet pipe; the outer side walls of the turnplates and the inner side wall of the shell form an annular passage; two movable plugs which can slide along the annular passage are arranged on the outer side walls of the turnplates; the movable plugs and the annular passage are in movable seal fit; switching through holes which run through the movable plugs are arranged inside the movable plugs; the two ends of each switching through hole are respectively communicated with the room in which the annular passage is arranged; at least one turnplate water inlet channel communicated with the corresponding switching through hole and the water inlet cavity and at least one turnplate water outlet channel communicated with the corresponding switching through hole and the water outlet cavity are arranged inside each turnplate; water inlet and outlet through holes are arranged inside the movable plugs; the water inlet and outlet through holes are matched with the turnplate water inlet channels to form a water inlet channel, and are matched with the turnplate water outlet channels to form a water outlet channel; and switching blocks which enable the water inlet channel or the water outlet channel to be conducted are arranged inside the switching through holes. The hydraulic power unit is big in torque, stable in performance and long in service life.
Description
technical field [0001] The invention relates to the technical field of hydraulic motors, in particular to a hydraulic power device. Background technique [0002] The hydraulic power unit is an energy conversion device that converts the hydraulic energy provided by the hydraulic pump into mechanical energy with one-way output rotary motion. The hydraulic power unit is also a hydraulic motor, also known as an oil motor, which is mainly used in injection molding machinery, ships, hoists, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, ship machinery, petrochemical, port machinery, etc. . High-speed motor gear motor has the advantages of small size, light weight, simple structure, good craftsmanship, insensitivity to oil pollution, impact resistance and small inertia. However, the existing hydraulic motors have some disadvantages such as large torque ripple, low efficiency, small starting torque and poor low-spee...
Claims
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IPC IPC(8): F03C2/00
Inventor 谷利伟
Owner 谷利伟