Heavy truck cab hydraulic lift radial piston pump

Abstract

The invention provides a heavy truck cab hydraulic hoisting radial plunger pump, which aims at solving the problems of the existing heavy truck cab hydraulic hosting mechanism in the prior art that the labor intensity is large, the pulse is large, the stability is poor, the speed is slow and the manufacturing cost is high, and the heavy truck cab hydraulic hoisting radial plunger pump comprises a pump body, a stator, a rotor, an oil distribution disc and a reversing valve; plunger units are uniformly arranged in the radial direction of the rotor; the stator and the rotor are eccentrically arranged; the oil distribution disc is arranged on the center of the rotor and provided with an oil inlet passage and an oil outlet passage, and the oil inlet passage and the oil outlet passage are respectively connected with an external pipeline; the reversing valve is arranged on the external pipeline and can switch an oil inlet pipeline and an oil outlet pipe of a cab hoisting oil cylinder; and each plunger unit comprises a plunger and a spring, and the spring is arranged between a bottom hole of the plunger and a root step of the plunger hole. The heavy truck cab hydraulic hoisting radial plunger pump has the beneficial effects that the pulse is small, the stability is high, the speed is high, simplicity in structure is realized, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to a hydraulic lift technology for a cab of a heavy truck, in particular to a radial piston pump for hydraulic lift of a cab of a heavy truck. Background technique [0002] When heavy-duty trucks need to maintain or repair the engine, they usually use a hydraulic system to lift the cab to facilitate maintenance or repair operations. In the prior art, the hydraulic lifting mechanism for the cab of a heavy truck usually adopts a single-piston manual pump, or a single-piston pump integrated with a flashlight, or a combination of a single-piston manual pump and an electric gear pump. The main problems of the single plunger manual pump are the disadvantages of high labor intensity for the operator, large pulse, poor stability and slow speed. However, the main problems of electric gear pumps are the disadvantages of requiring large motor power, large pulse, poor stability and easy damage, and high manufacturing cost. Apparently, the h...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of heavy-duty truck cab hydraulic lifting mechanism in the prior art, such as high labor intensity, large pulse, poor stability, slow speed and high manufacturing cost, the present invention proposes a hydraulically-lifted radial plunger for heavy-duty truck cab Pump

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