Spherical vane type hydraulic pump
A vane-type, hydraulic pump technology, applied in the field of hydraulic pumps, can solve the problems of fast wear, low output pressure, and poor sealing performance of hydraulic pumps, and achieve the effects of easy processing, high pressure, and long life
Active Publication Date: 2015-04-29
ZHEJIANG UNIV
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Problems solved by technology
This type of vane pump is sealed by a contact line between the vane and the cylinder body, so the sealing performance is poor, and the output pressure is low. In addition, there is a lot of friction between the vane, the rotor and the cylinder body during rotation, resulting in the hydraulic pump as a whole. Fast wear, short life, low efficiency
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Embodiment Construction
[0040] Such as Figure 16 As shown, the spherical vane hydraulic pump of the present invention includes a housing 1 , a rotor 2 , two vanes 3 , two sealing strips 4 , two oil distribution cones 5 and two pads 6 . The rotor 2 is located at the center, the housing 1 is located outside, the two oil distribution cones 5 are respectively located in the hollow conical surfaces at both ends of the rotor 2, and the two vanes 3 are respectively located on both sides of the rotor 2 and placed on the opposite corners of the housing 1. It forms an angle with the rotor 2 in the hollow ring (that is, the guide groove), and the tangent of the angle is the ratio of the height of the housing 1 to the diameter of the bottom circle of the housing 1. One plane of the vane 3 fits with the side of the circular platform of the oil distribution cone 5, and the sealing strip 4 is located between the rotor 2 and the vane 3, one plane side of which is jointed with a plane of the rotor 2, and the cylin...
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The invention discloses a spherical vane type hydraulic pump comprising a shell, a rotor, two vanes, two sealing strips, two oil distribution cones and two gaskets; the rotor is arranged in the center, the shell is arranged at the outer part, the two oil distribution cones are respectively arranged in two hollow conical surfaces at two ends of the rotor, the two vanes are respectively arranged at two sides of the rotor and placed in hollow circular rings at across corners of the shell to form a certain angle with the rotor, and the tangent value of the angle is equal to the ratio of the height of the shell to the diameter of a bottom circle of the shell; one plane of each vane is jointed with the side of a circular truncated cone of each oil distribution cone, the sealing strips are arranged between the rotor and each of the vanes, the plane side of each sealing strip is jointed with one plane of the rotor, the cylindrical surface side of each sealing strip is jointed with the cylindrical surface E1 of each vane, and the gaskets are arranged in the hollow circular rings at the across corners of the shell to just fill in a gap formed by the vanes, the rotor and the sealing strips. Sealing parts of the spherical vane type hydraulic pump are all in surface sealing, and the spherical vane type hydraulic pump has the advantages of large output volume, high pressure, high efficiency, high specific power, compact structure, relative easiness in machining, lower cost and long service life.
Description
technical field [0001] The invention relates to a hydraulic pump, in particular to a spherical vane hydraulic pump. Background technique [0002] The structure of the existing vane hydraulic pump is that the rotor is placed eccentrically in the oil cylinder, and the vanes are placed in the rotor radially or at a certain angle with the rotor radius. When working, the rotor rotates at high speed, and the vanes are thrown out under the action of centrifugal force. The body forms a sealed cavity, and the volume change generates pressure when it rotates. This type of vane pump is sealed by a contact line between the vane and the cylinder body, so the sealing performance is poor, the output pressure is low, and there is a lot of friction between the vane, the rotor and the cylinder body during rotation, resulting in the hydraulic pump as a whole. Fast wear, short life and low efficiency. In addition, in order to ensure that the blades can safely enter and exit the rotor during r...
Claims
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IPC IPC(8): F04C2/344F04C15/00
Inventor 陈行金波
Owner ZHEJIANG UNIV