Inlet adjusting device for centrifugal drum pressure fan
A blower and regulating device technology, which is applied to the components of pumping devices for elastic fluids, mechanical equipment, non-variable pumps, etc., can solve the problems of difficult installation and debugging, high manufacturing cost, and low adjustment accuracy , to achieve the effect of precise adjustment, simple structure and efficient operation
Pending Publication Date: 2017-01-25
CHONGQING GENERAL IND (GRP) LTD
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Problems solved by technology
In the prior art, the inlet adjustment device of the centrifugal blower is mainly realized by a planar four-bar mechanism, a ball twist and a sprocket drive, and the adjustment accuracy is low, the structure is complicated, the manufacturing cost is high, and the installation and debugging are not easy.
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[0018] The present invention will be described in further detail below in conjunction with specific embodiments and accompanying drawings.
[0019] An inlet adjustment device of a centrifugal blower fan such as figure 1 with figure 2 As shown, it includes an air intake housing 1 and a driving shaft 6. The center of the air intake housing 1 is provided with a bearing. The driving shaft 6 is arranged outside the air intake housing 1 and connected to the bearing through the air intake housing 1. The bearing is connected with 15 guide vanes (3), the 15 guide vanes 3 are circular and evenly distributed on the intake housing 1, the tail ends of 14 guide vanes 3 are equipped with driven bevel gears 4 through keys, and the remaining one guide vane The tail end of leaf 3 is equipped with driving bevel gear 2 by key; Driving bevel gear 2 is connected with the control mechanism that can drive it to rotate; meshing bevel gear 5.
[0020] Specifically, the control mechanism includes an...
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The invention provides an inlet adjusting device for a centrifugal drum pressure fan. The inlet adjusting device comprises an air inlet housing and a driving shaft, wherein a bearing is arranged at the center of the air inlet housing and is connected with guide vanes, the guide vanes are circularly and uniformly distributed in the air inlet housing, the other end of each guide vane is connected with multiple driven bevel gears and a driving bevel gear, and the driven bevel gears are connected with the other end of each guide vane. The other end of the driving bevel gear is connected with the driving shaft through a key. Bevel gear rings meshed with the driven bevel gears are arranged on the air inlet housing, and the driving bevel gear is connected with a control mechanism capable of driving the driving bevel gear to rotate. The inlet adjusting device is simple in structure and easy to install, performs driving by adopting the bevel gears, drives the bevel gear rings through the driving bevel gear, then drives other driven bevel gears through the bevel gear rings, accordingly drives the guide vanes to rotate and changes angles of the guide vanes, gear driving can make adjustment more accurate and stable, flow pressure ratio adjustment of the centrifugal drum pressure fan is well achieved, and accordingly the drum pressure fan can perform more efficient operation.
Description
technical field [0001] The invention relates to a composition structure of a blower blower, in particular to an inlet regulating device for a centrifugal blower blower. Background technique [0002] At present, the centrifugal blower can compress the gas to increase the pressure of the gas, and is more and more widely used in the fields of sewage treatment, desulfurization, and metallurgy. In the prior art, the inlet adjustment device of the centrifugal blower is mainly realized by a planar four-bar mechanism, a ball hinge and a sprocket drive. The adjustment accuracy is low, the structure is complicated, the manufacturing cost is high, and the installation and debugging are difficult. Contents of the invention [0003] The present invention makes improvements to the problems existing in the above-mentioned prior art, and proposes an inlet adjustment device for a centrifugal blower, which has high adjustment accuracy, simple structure, and is easy to install and debug. ...
Claims
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IPC IPC(8): F04D29/46F04D27/00
CPCF04D27/0246F04D29/462
Inventor 罗乐
Owner CHONGQING GENERAL IND (GRP) LTD