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Balance-adjustable bilateral drive axial plunger motor

A technology of axial piston motor and double-sided drive, which is applied in the field of axial piston motor, can solve the problems of different driving torques on both sides, different driving torques, and complicated design process, so as to improve working stability and improve Stability and the effect of reducing design difficulty

Active Publication Date: 2015-12-09
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of equal hydraulic pressure on both sides, since the external force arm of the axial piston motor driven by both sides must be greater than the internal force arm, the driving torque on both sides is different.
At the same time, because the hydraulic force of the inner row is smaller than that of the outer row, there is a certain degree of difference in the actual force, which further leads to the difference in the driving torque of the inner and outer rows.
If the structural dimensions of the inner and outer rows of the double-sided drive axial piston motor are changed to achieve a complete balance of key components, the design process will be complicated and difficult

Method used

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  • Balance-adjustable bilateral drive axial plunger motor
  • Balance-adjustable bilateral drive axial plunger motor
  • Balance-adjustable bilateral drive axial plunger motor

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Example 1 see figure 1 , taking double-row plunger drive as an example, the adjustable balance bilateral drive axial plunger motor mainly includes: proportional valve core 11, return spring 12, adjustment handle 13, external threaded port and plug 9, ordinary double-sided shaft to the plunger motor. When the high-pressure oil is supplied to the plunger cavity in two ways from the oil inlet P1: a part of the high-pressure oil passes through the A oil port and the oil distribution plate 15, and directly supplies liquid to the inner row of the plunger cavity to generate driving force and The driving torque drives it to rotate on one side of the cylinder block 19; the other part of the high-pressure oil is depressurized by the proportional valve core 11, and then supplies liquid to the outer discharge plunger chamber through the B oil port and the oil distribution plate 15, resulting in the same The driving force and driving moment in the same direction in the row drive th...

Embodiment 2

[0030] Embodiment 2 see image 3 , 4 Schematic diagrams of two different regulation of an adjustable balanced double-sided drive axial piston motor with three rows of plungers.

[0031] see image 3 , the oil at oil port A supplies liquid to the middle row of plunger chambers S2, and the oil at oil port B supplies liquid to the inner row of plunger chambers S1 and outer row of plunger chambers S3. The actual size of the middle row of plunger chambers is larger than that of the inner and outer row of plunger chambers. After pressure regulation, the torque at the middle row of plungers can be guaranteed to be the same as that at the inner and outer row of plungers. The sum is balanced so that the cylinder is completely floating. When the pressure in the plunger chamber fluctuates and the torque of the cylinder body 6 is unbalanced, the return spring 2 is adjusted by the adjustment handle 3 to restore the cylinder body 6 to a balanced state.

[0032] Figure 4 , the oil at o...

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Abstract

The invention discloses a balance-adjustable bilateral drive axial plunger motor which comprises a cylinder, an oil distribution disc, shells, a transmission shaft and a pressure intensity micro-adjustment device. Multiple rows of plunger holes evenly distributed around concentric circles are formed in the cylinder. The oil distribution disc is provided with multiple rows of oil suction ports and oil drainage ports. The oil drainage ports in each row of the oil distribution disc are communicated with an oil outlet through the corresponding shell. The oil suction ports in each row of the oil distribution disc are communicated with an oil inlet through the corresponding shell. The oil suction ports in the outer row or the oil outlets of the oil distribution disc are communicated with oil outlets of the pressure intensity micro-adjustment device. The stability of the bilateral drive axial plunger motor under high pressure and large loads can be well guaranteed, the design difficulty of the bilateral drive axial plunger motor can be greatly reduced, the service life of the bilateral drive axial plunger motor is prolonged, and the bilateral drive axial plunger motor is simple, feasible and good in application prospect and popularization value.

Description

technical field [0001] The invention relates to the technical field of axial piston motors, in particular to an adjustable and balanced dual-side driven axial piston motor. Background technique [0002] Axial piston motor is one of the important hydraulic actuators in the hydraulic transmission system, widely used in construction machinery, coal mining machinery, agricultural machinery, aerospace and other occasions. [0003] In view of the working principle and structural characteristics of the existing axial piston motor, when the existing axial piston motor is working, the driving force always only exists on one side of the cylinder body, resulting in unbalanced force on the cylinder body and oil distribution. Both the disk and the transmission shaft have a large eccentric load force, and the eccentric wear phenomenon is serious. At the same time, the driving torque only exists on one side of the cylinder body, which has a great influence on the smoothness of the drive s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03C1/06
Inventor 邓海顺黄然王传礼何涛黄坤
Owner ANHUI UNIV OF SCI & TECH
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