Arc tooth gear pump noise, arc pump noise old hair is what is the reason? How to solve the problem of arc gear pump noise Circular arc gear pump noise has the following possible aspects:
(1) the impact of the exhaust valve plate on the seat and support;
(2) rotary vane impact on the cylinder, circular arc gear pump residual volume and exhaust in the dead space of the sound pressure oil;
(3) the echo of the box and the bubble burst sound;
(4) a lot of gas, oil shocks caused by the oil pan and other noise;
(5) bearing noise;
(6) motor noise, which is a crucial factor.
(7) other. Such as transmission caused by noise, air-cooled arc gear pump fan noise.
As follows:
1) the impact of the vane on the cylinder wall. If the design, manufacture or improper use of materials caused by poor sliding slide, or due to the presence of exhaust dead space, the incompressible oil caused by the rotary blade head can not always close to the cylinder wall operation, it will cause the rotary vane on the cylinder wall Crashed sound. Therefore, the arc surface should be separated into the exhaust port structure. Use vent deflector to eliminate dead space. In the use of line separation structure, should try to shorten the exhaust end point to the point of tangent distance, for the following 70L / s rotary arc gear pump, consider the actual thickness of the rotary blade, it is recommended to take 7 ~ lOmm, gear pump gear Large value. Too close, due to the existence of rotor vane slot and the vane head only a narrow strip contact, rotary vane to the point of tangent when the sealing effect is not good, it will affect the arc gear pump pumping speed or even the ultimate pressure. Shows that this structure can not completely eliminate exhaust dead space, limiting the level of noise reduction.
(1) the impact of the exhaust valve plate on the seat and support;
(2) rotary vane impact on the cylinder, circular arc gear pump residual volume and exhaust in the dead space of the sound pressure oil;
(3) the echo of the box and the bubble burst sound;
(4) a lot of gas, oil shocks caused by the oil pan and other noise;
(5) bearing noise;
(6) motor noise, which is a crucial factor.
(7) other. Such as transmission caused by noise, air-cooled arc gear pump fan noise.
As follows:
1) the impact of the vane on the cylinder wall. If the design, manufacture or improper use of materials caused by poor sliding slide, or due to the presence of exhaust dead space, the incompressible oil caused by the rotary blade head can not always close to the cylinder wall operation, it will cause the rotary vane on the cylinder wall Crashed sound. Therefore, the arc surface should be separated into the exhaust port structure. Use vent deflector to eliminate dead space. In the use of line separation structure, should try to shorten the exhaust end point to the point of tangent distance, for the following 70L / s rotary arc gear pump, consider the actual thickness of the rotary blade, it is recommended to take 7 ~ lOmm, gear pump gear Large value. Too close, due to the existence of rotor vane slot and the vane head only a narrow strip contact, rotary vane to the point of tangent when the sealing effect is not good, it will affect the arc gear pump pumping speed or even the ultimate pressure. Shows that this structure can not completely eliminate exhaust dead space, limiting the level of noise reduction.
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