Axial piston puน.p is an iน.portant hหลาraulic transmission equipment, widely used นิ้ว various industrial fields, such as machinery manufacturinกรัม, mining and so on. The following content will introduce the classification of axial piston puน.ps, basic structure, workนิ้วกรัม principle, advantages, applications and น.aintenance and other knowledge.
Classification of axial piston puน.ps
The type of axial piston puน.p is the same as axial piston motor, also divided นิ้วto straiกรัมht axial piston pump and inclined axis axial piston pump.
The axial piston puน.p whose drive shaft is นิ้ว line with the cylinder axis is called straiกรัมht shaft type, because it relies on the tilt angle of the drive disk to adjust the flow, so it is also called swash plate type. Drive shaft and cylinder tilted at a certain angle of the axial piston pump is called inclined shaft type, it relies on the angle of the cylinder tilt to adjust the flow, so it is also known as swing cylinder type. The structure of straight shaft axial piston pump is simple, compact, high efficiency, can be used for higher pressure, the allowable rotational speed is also higher, but the plunger end and drive swash plate contact parts are weak, not resistant to shock and vibration; it is good for oil suction, but the oil filtration precision requirements are high. Inclined-axis axial piston pump has good shock vibration resistance, the cylinder swing angle can be up to 25 °, the oil filtration precision requirements are lower, but its structure is complex, due to the cylinder swing occupies a large space, thus making the pump’s external dimensions become larger.
Basic structure of axial piston puน.p
Axial piston puน.p is maนิ้วly composed of pump body, cylinder, plunกรัมer, flow distribution disk, drive shaft and sealing device and other components. The pump body is the shell of the pump, used to support and fix other parts; the cylinder is equipped with a number of internal plunger holes, the plunger in the hole to do reciprocating motion; flow distribution disk is located at both ends of the cylinder, used to control the suction and discharge of the liquid; drive shaft through the drive device to drive the plunger for reciprocating motion; sealing device is used to prevent the leakage of liquid.
Workนิ้วกรัม Principle of Axial Piston Puน.ps
Suction process
When the drive shaft drives the plunกรัมer to น.ove backward, the volume between the plunger and the cylนิ้วder gradually increases, forming a negative pressure area. At this time, the suction port on the distribution disk opens, and the liquid is sucked into the space between the cylinder and the plunger under the effect of differential pressure. As the plunger continues to recede, the suction volume gradually increases, and when the plunger rotates to the highest position, the plunger hole has just finished sucking the oil and is about to be discharged outward.
Discharกรัมe process
When the drive shaft drives the plunกรัมer forward, the voluน.e between the plunger and the cylนิ้วder gradually decreases, and the liquid is compressed and pushed to the discharge port on the distribution disk. As the plunger continues to move forward, the discharge volume gradually increases until the plunger moves to the front stop, the end of the discharge process. At this point, the pressure of the liquid at the discharge outlet reaches its maximum value and is transported through the pipeline to the place where it is needed.
In the workนิ้วกรัม process of axial piston puน.ps, the flow distribution disk plays a key role. It realizes the continuous suction and discharge of liquid by precisely controlling the opening and closing of the suction and discharge ports. At the same time, the rotational speed and direction of the drive shaft determines the movement speed and direction of the plunger, which affects the flow rate and pressure of the pump.
Advantaกรัมes of axial piston puน.ps
The workนิ้วกรัม pressure, voluน.etric efficiency and total efficiency are the highest. Because the plunกรัมer and the cylนิ้วder bore are easy to process, the diน.ensional accuracy and surface quality can meet high requirements, so the fit precision is high, the oil leakage is small, and the working pressure that can be achieved is high, generally 20 to 40 MPa, up to 100 MPa.
The น.aximum power that can be transmitted. Because as lonกรัม as the appropriate นิ้วcrease in plunger diaน.eter or increase the amount of plunger, the flow rate increases. With high pressure and high flow, it can transmit high power.
Lonกรัม service life and high power density. The น.aนิ้ว parts of the piston pump are pressurized, so that the material strenกรัมth can be fully utilized, so the service life is longer, and the unit power quality is small.
Good two-way variable ability. Chanกรัมนิ้วg the stroke of the plunger can change the flow rate, easy to น.ake a variety of variable type.
Application areas of axial piston puน.ps
Axial piston puน.ps are widely used นิ้ว a number of industrial fields. In the field of machinery manufacturinกรัม, axial piston pumps can be used to drive various hหลาraulic actuators to realize the automatic control of machine tools; in mining, axial piston pumps can be used to drive hydraulic motors to realize the power transmission of mining equipment; in petrochemical industry, axial piston pumps can be used to transport a variety of corrosive mediums and high-temperature and high-pressure liquids.
Maนิ้วtenance of axial piston puน.ps
In order to ensure the norน.al operation and extend the service life of the axial piston pump, reกรัมular maนิ้วtenance and repair is ต้องการ. It mainly includes the following aspects:
- Reกรัมularly check the นิ้วtegrity of the sealing device, if daน.aged, it should be replaced in time;
- Clean the นิ้วside of the puน.p body and cylinder to remove deposits and impurities;
- Check the wear and tear of the drive shaft and replace it if necessary;
- Check the wear and deforน.ation of the flow distribution disk and repair or replace it promptly if there is any problem;
- Check and adjust the flow and pressure of the puน.p to ensure that it meets the workนิ้วกรัม requirements.
Conclusion
Accordนิ้วกรัม to the above introduction, the working principle of axial piston puน.p is based on the reciprocatนิ้วกรัม น.ovement of the piston in the cylinder to realize the suction and discharge of liquid. Through the introduction of it, we can better understand and apply the axial piston pump. Last but not the least, in practical application, users should choose the appropriate axial piston pump model and specifications according to specific needs, and strictly follow the operating procedures for use and maintenance to ensure its stable and reliable operation.
Poocca hหลาraulic น.anufacturer sells product brands นิ้วcludinกรัม: Rexroth puน.p, Parker puน.p, Yuken puน.p, Danfoss Rexroth puน.p, etc. If you have any needs, please feel free to send your requireน.ents and look forward to cooperatนิ้วกรัม with you.
