Vehicle-mounted unloading double-acting sliding vane pump counterrotation protection device

Abstract

The invention discloses a vehicle-mounted unloading double-acting sliding vane pump counterrotation protection device. The protection device comprises a box, a counterrotation seat, a damping cover block and a counterrotation ratchet wheel. The two ends of the box are provided with a front end cover and a rear end cover in a covered mode. A double-acting stator is arranged on the inner side of the box. A rotor is arranged in the double-acting stator. Sliding vanes are arranged in sliding vane grooves of the rotor. A driving spindle is arranged in the rotor in a penetrating mode. The double-acting stator is provided with oil absorption areas and oil pressing areas. The spindle head of the driving spindle penetrates through a central driving hole and a thrust bearing. The damping cover block is arranged on one side of the rear end cover. The lower end of the damping cover block is connected with the counterrotation ratchet wheel. An oil pressing external gear is arranged on a fixed shaft between a first circular groove of the damping cover block and a second circular groove of the counterrotation ratchet wheel. A wave spring is arranged between the thrust bearing and the bottom surface of a cylindrical groove in the lower end of the counterrotation ratchet wheel. Counterrotation pins are arranged in cylindrical stop grooves in the counterrotation seat. The vehicle-mounted unloading double-acting sliding vane pump counterrotation protection device is simple in structure, good in counterrotation effect and capable of being widely applied and popularized.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of sliding vane pumps, in particular to the technical field of the transient damping anti-reversal structure of double-acting sliding vane pumps. [0003] 【Background technique】 [0004] When the sliding vane pump stops suddenly, due to the pressure difference between the inlet and outlet, the rotor is reversed and the sliding vanes on the rotor are damaged. At the same time, the reverse will cause water hammer in the pipeline, causing system impact, causing damage to the motor and equipment, and causing damage to the mechanical seal. At this stage, one-way bearings are generally used. This structure is applied under low-pressure conditions, and anti-reverse under transient high-voltage conditions. Due to the instantaneous impact force increase, it is very easy to cause one-way bearings to fail. Therefore, there is an urgent need for an instantaneous anti-rotation Invert the structure. For instanta...

AI Technical Summary

Problems solved by technology

[0004] When the sliding vane pump stops suddenly, due to the pressure difference between the inlet and outlet, the rotor is reversed and the sliding vanes on the rotor are damaged.

At the same time, the reverse will cause water hammer in the pipeline, causing system impact, causing damage to the motor and equipment, and causing damage to the mechanical seal

At this stage, one-way bearings are generally used. This structure is applied under low-pressure conditions, and anti-reverse under transient high-pressure conditions. Due to the instantaneous impact force increase, it is very easy to cause one-way bearings to fail. Therefore, there is an urgent need for an instantaneous anti-rotation reverse structure

Images