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Analysis On The Application Of YOX Series Hydraulic Coupler And The Countermeasures
Oct 24, 2017

For the poor underground environment, the use of hydraulic couplers often fail to be forced to repair the replacement, that is, the normal operation of the belt conveyor and economic losses can not be ignored. According to the practical application of the series of equipment working principle and cause of failure to do a discussion, combined with practical work experience, put forward the corresponding countermeasures and treatment methods.


    First, YOX series hydraulic coupler from the pump wheel, turbine, shell, auxiliary room and bearings, seals, connecting components and other components.


    Is the use of circulating flow in the pump and turbine fluid flow between the changes in power (torque and speed) to pass, the hydraulic coupler has been able to transmit power, because the motor connected to the pump and the machine connected with the The turbine has many straight radial blades. Under normal operation, the motor drives the pump wheel to rotate, and the liquid is sucked from the small radius of the pump wheel and is accelerated between the blades under the action of centrifugal force, and then the impact turbine is ejected from the maximum radius of the pump Drive its rotation. As the load increases, the turbine speed decreases, and the liquid in the turbine flows faster into the sub-chamber under dynamic pressure, and the liquid in the working chamber consisting of the pump wheel and the turbine is reduced. The characteristics of the coupling to change the torque transfer within a certain range, to achieve the entire drive system limit protection.

Its performance characteristics:


    1) Dynamic performance is good, the load response is sensitive, the overload factor is small, the protection performance is good, the λ value is different with the delivery power range.


    2), to improve the motor starting performance.


    3) Good overload protection for motor.


    4), absorb and slow down the impact of the drive system and torsional vibration. Extend the life of the machine.


    5), in the multi-power and machine-driven, can automatically balance the load to synchronize.


    Second, the hydraulic coupler failure and treatment methods.


    We often use the failure and cause the main reasons for failure and processing countermeasures in the following areas:


    1, the work machine power is too large or improper selection, should check the power consumption, re-accounting.


    2, hydraulic coupler filling too much or too little, should be required to fill water.


    3, hydraulic coupler leakage, should replace the seal.


    4, bearing damage, should be with the bearing


    5, improper installation, should be re-installed, adjusted to the requirements


    2.1 installation, not accurately correct, resulting in coaxial or poor by the firmware when the loose, resulting in transmission motor - coupler - reducer input shaft is different from the heart during the process of displacement caused by eccentric, unstable and produce vibration , Damaged equipment. Treatment strategy: the motor - hydraulic coupler - reducer to find the three concentricity between the first, the coupling flange diameter and hole concentricity, the end of the hole and the center line of the vertical line to check, Eliminate these factors to find a greater error.


    (1) According to the order of the coupling to determine the axial position of each machine, you must consider the motor start and run when the axial runout. So there should be enough clearance between the end of the coupling to prevent the motor, the working shaft axis of the axial force generated by the role of the hydraulic coupler shaft, resulting in bearing damage. In general we reserve 6 to 8 mm.


    (2) in the horizontal plane to find the axis, to ensure that the axial direction of the swing ≯ 0.05, radial horizontal offset ≯ 0.3-0.5mm, axial angular displacement of 1.5.


    2.2 hydraulic coupler filling fluid caused by uneven performance: hydraulic coupler the amount of liquid flow is greater the ability to transmit power, the greater the efficiency, but the corresponding start performance is hard, overload factor increases the same time The force of the coupling chamber is significantly increased and the seal is sealed prematurely. So the amount of water should be limited to the total volume of 40% -80% range, is strictly prohibited. By the actual operation, simple filling method: open the water plug, slowly rotating the coupler so that the water hole above the water flow to the hole so far, then the height of the water hole at this time to lead the mark, as the future Check the water or fill the water standard.


    2.3 Fluid Coupler Seal Damage Leakage: The hydraulic coupler seal must be replaced once a year to ensure good sealing performance.


    2.4 hydraulic coupler bearing damage: long-term operation of the bearing lubrication caused by poor bearing damage, must be running for 6 months for oil maintenance.


    2.5 hydraulic coupler filling fluid quality affect the operating performance: water quality in the long-term high temperature operation easy to scale, resulting in reduced capacity of the hydraulic coupler cavity, how to increase the friction resistance, and even Dousse overcurrent, causing damage, while water Impurities can also cause damage to the hydraulic coupler. The paper is published. So the hydraulic coupler must be carried out when the water filter and add water quality softener.

For the poor underground environment, the use of hydraulic couplers often fail to be forced to repair the replacement, that is, the normal operation of the belt conveyor and economic losses can not be ignored. According to the practical application of the series of equipment working principle and cause of failure to do a discussion, combined with practical work experience, put forward the corresponding countermeasures and treatment methods.


    First, YOX series hydraulic coupler from the pump wheel, turbine, shell, auxiliary room and bearings, seals, connecting components and other components.


    Is the use of circulating flow in the pump and turbine fluid flow between the changes in power (torque and speed) to pass, the hydraulic coupler has been able to transmit power, because the motor connected to the pump and the machine connected with the The turbine has many straight radial blades. Under normal operation, the motor drives the pump wheel to rotate, and the liquid is sucked from the small radius of the pump wheel and is accelerated between the blades under the action of centrifugal force, and then the impact turbine is ejected from the maximum radius of the pump Drive its rotation. As the load increases, the turbine speed decreases, and the liquid in the turbine flows faster into the sub-chamber under dynamic pressure, and the liquid in the working chamber consisting of the pump wheel and the turbine is reduced. The characteristics of the coupling to change the torque transfer within a certain range, to achieve the entire drive system limit protection.

Its performance characteristics:


    1) Dynamic performance is good, the load response is sensitive, the overload factor is small, the protection performance is good, the λ value is different with the delivery power range.


    2), to improve the motor starting performance.


    3) Good overload protection for motor.


    4), absorb and slow down the impact of the drive system and torsional vibration. Extend the life of the machine.


    5), in the multi-power and machine-driven, can automatically balance the load to synchronize.


    Second, the hydraulic coupler failure and treatment methods.


    We often use the failure and cause the main reasons for failure and processing countermeasures in the following areas:


    1, the work machine power is too large or improper selection, should check the power consumption, re-accounting.


    2, hydraulic coupler filling too much or too little, should be required to fill water.


    3, hydraulic coupler leakage, should replace the seal.


    4, bearing damage, should be with the bearing


    5, improper installation, should be re-installed, adjusted to the requirements


    2.1 installation, not accurately correct, resulting in coaxial or poor by the firmware when the loose, resulting in transmission motor - coupler - reducer input shaft is different from the heart during the process of displacement caused by eccentric, unstable and produce vibration , Damaged equipment. Treatment strategy: the motor - hydraulic coupler - reducer to find the three concentricity between the first, the coupling flange diameter and hole concentricity, the end of the hole and the center line of the vertical line to check, Eliminate these factors to find a greater error.


    (1) According to the order of the coupling to determine the axial position of each machine, you must consider the motor start and run when the axial runout. So there should be enough clearance between the end of the coupling to prevent the motor, the working shaft axis of the axial force generated by the role of the hydraulic coupler shaft, resulting in bearing damage. In general we reserve 6 to 8 mm.


    (2) in the horizontal plane to find the axis, to ensure that the axial direction of the swing ≯ 0.05, radial horizontal offset ≯ 0.3-0.5mm, axial angular displacement of 1.5.


    2.2 hydraulic coupler filling fluid caused by uneven performance: hydraulic coupler the amount of liquid flow is greater the ability to transmit power, the greater the efficiency, but the corresponding start performance is hard, overload factor increases the same time The force of the coupling chamber is significantly increased and the seal is sealed prematurely. So the amount of water should be limited to the total volume of 40% -80% range, is strictly prohibited. By the actual operation, simple filling method: open the water plug, slowly rotating the coupler so that the water hole above the water flow to the hole so far, then the height of the water hole at this time to lead the mark, as the future Check the water or fill the water standard.


    2.3 Fluid Coupler Seal Damage Leakage: The hydraulic coupler seal must be replaced once a year to ensure good sealing performance.


    2.4 hydraulic coupler bearing damage: long-term operation of the bearing lubrication caused by poor bearing damage, must be running for 6 months for oil maintenance.


    2.5 hydraulic coupler filling fluid quality affect the operating performance: water quality in the long-term high temperature operation easy to scale, resulting in reduced capacity of the hydraulic coupler cavity, how to increase the friction resistance, and even Dousse overcurrent, causing damage, while water Impurities can also cause damage to the hydraulic coupler. The paper is published. So the hydraulic coupler must be carried out when the water filter and add water quality softener. Xinxiang City xinsheng mine manufacturing Co., Ltd. for reference, the details can be consulted 13839055165@163.com