Axial plunger type hydraulic pump with hydraulic return stroke
A plunger type, hydraulic pump technology, applied in the field of hydraulic pump, can solve the problems of constant operation, maintenance of hydraulic reversing device, high maintenance cost, high manufacturing cost, low manufacturing cost, avoiding difficult control of angle adjustment accuracy, Ease of daily maintenance
Pending Publication Date: 2021-02-12
冯海迪
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problems in the prior art that the operation of the manual servo valve remains unchanged, the maintenance and repair costs of the hydraulic reversing device are high, and the manufacturing cost is high, and a hydraulic return axial plunger hydraulic valve is proposed. Pump
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Embodiment approach
[0030] As an embodiment of the present invention, the buffer mechanism includes a piston buffer mechanism, the piston buffer mechanism includes a hollow tube 17, and the hollow tube 17 is fixedly installed on the upper end surface of the base 18, the pump body 1 There are movable plates 21 fixedly installed on both sides, and a plurality of piston rods 24 are symmetrically installed on the lower end surface of the movable plate 21, and the lower end of each piston rod 24 extends into the hollow tube 17 and is fixedly equipped with a piston 23 ;
[0031] When working, when the hydraulic pump is vibrated (because the hydraulic pump needs to be attached to other objects, it is not convenient to install if the force in the horizontal and vertical directions is not limited, so only more vertical vibrations are considered in this device. In the case of vibration), because the base 18 is attached to other objects, the vibration received by the base 18 is the same as that of the attac...
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The invention discloses an axial plunger type hydraulic pump with a hydraulic return stroke. The axial plunger type hydraulic pump comprises a pump body, wherein a variable piston is arranged in the pump body, a lead screw is installed on the variable piston in a threaded mode, a locking base is installed on the pump body, a shell is installed on the pump body through a locking screw, a limiting sliding groove is formed in the inner side wall of the shell, a threaded sleeve is fixedly connected to the upper end of the lead screw, a sliding rod is fixedly connected to the side wall of the threaded sleeve, a threaded rod is connected to the threaded sleeve in a threaded mode, and a first bevel gear is installed on the threaded rod; a motor is installed on the inner wall of the shell, a wormis installed on an output shaft of the motor, a horizontal rotating shaft is horizontally installed on the inner side wall of the shell, and a worm gear and a second bevel gear are installed on the horizontal rotating shaft. The pump is ingenious in structure, reasonable in design, low in manufacturing cost and easy and convenient to maintain in daily life, and meanwhile, the buffer mechanism caneffectively reduce the influence of vibration on the pump body.
Description
technical field [0001] The invention relates to the technical field of hydraulic pumps, in particular to an axial plunger hydraulic pump for hydraulic return. Background technique [0002] In the hydraulic system, the hydraulic pump, as an energy conversion element, converts the mechanical energy of the electric motor into the pressure energy of the oil, and provides the hydraulic system with a certain pressure and flow of liquid. Hydraulic pumps can be divided into quantitative pumps and variable pumps according to whether the input (or output) oil can be adjusted per unit time. The axial piston hydraulic pump is one of the variable pumps. In the existing axial plunger hydraulic pumps, the flow rate is generally adjusted by changing the inclination angle of the swash plate, and the inclination angle of the swash plate is generally adjusted by a manual servo valve. Although it can meet the use requirements to a certain extent, there is a manual Operational complex flaws. ...
Claims
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IPC IPC(8): F04B1/295F04B1/324F04B53/00F16M5/00F16F15/023F16F15/04F16F15/067
CPCF04B1/295F04B1/324F04B53/003F16M5/00F16F15/0232F16F15/046F16F15/067
Inventor 冯海迪陈龙
Owner 冯海迪