Machine for graduating lines on fan blades
A scale machine, fan blade technology, applied in typewriters, mechanical equipment, machines/engines, etc., can solve the problems of large scale deviation, low scale line efficiency, large scale line error, etc., achieve accurate and reliable installation, and increase the scope of use. , the effect of short installation time
Active Publication Date: 2011-11-23
SHANGHAI KING SUN COOLING EQUIP
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Problems solved by technology
[0004] At present, the scale lines of fan blades are generally made manually. A chisel is aligned with the rectangular hole on the FRP template, and a notch is made on the cylindrical surface of the blade handle. Since there is a certain gap between the rectangular hole and the chisel, plus When workers operate, the center line of the chisel cannot be accurately aligned with the center of the cylindrical surface of the fan blade handle, resulting in a large scale deviation, with a deviation of more than 2 degrees, which affects the accuracy of the installation and positioning of the fan blade on the fan blade disk, and makes the fan efficiency vary depending on the fan blade. Uncertainty due to installation deviation
It can be seen that the efficiency of hand-made scale lines is low, and due to the large randomness of manual production, the error of the scale lines is relatively large. When installing fan blades, the angles of different blades on the same scale are very different from each other, which often cannot meet the installation requirements. Requirements, the site needs to use the angle measuring device to adjust the angle of the fan blade, which is very inconvenient
Method used
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[0030] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0031] see figure 1 , The fan blade marking machine includes a frame 100, the frame 100 is composed of a bottom frame 110, a panel 120 and a column 130, the panel 120 is arranged on the bottom frame 110, and the column 130 is vertically arranged on the panel 120.
[0032] see figure 1 with 2 , The panel 120 is provided with a bearing seat, and one end of the rotating shaft is arranged in the bearing seat (not shown in the figure). An indexing and rotating mechanism 200 is installed on the panel 120, and the indexing and rotating mechanism 200 includes a dial 210, a turntable 220 and a positioning platen 230 for fixing the turntable. Both the dial 210 and the dial 220 are ring-shaped, the dial 210 and the dial 220 are set outside the bearing s...
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A machine for graduating lines on fan blades comprises a stand, a fan blade holding device, a guide rail device arranged on the stand, a locating device and a marking device, wherein the fan blade holding device is used for holding the fan blades and can automatically rotate; the locating device is arranged on the guide rail device and is used for limiting the angle orientation of the fan blades and preventing the fan blades from rotating; the marking device is arranged on the stand and is used for graduating lines on the cylindrical surfaces of the fan blade handles; and the graduation line directions of the marking device are vertical to the axis of rotation of the holding device. The machine has the following beneficial effects: the fan blade holding device is used for holding the fan blades, then the locating device is used for limiting the angle orientation of the fan blades and preventing the fan blades from rotating and finally the installed marking device is used for graduating lines on the fan blades; and The graduation lines made by the invention have small deviation within 1 degree, thus being convenient for the fan blades to install on the fan blade plates and ensuringshort installation duration, high installation efficiency and accurate and reliable installation.
Description
technical field [0001] The invention relates to a fan blade marking machine, in particular to a device for making the scale line of the fan blade. After the scale line of the fan blade is made by the device, it is convenient for the on-site installation of the fan, and the installation is accurate and reliable. , while saving installation time. Reduce the cooling tower fan due to the different installation angles of the fan blades, which may cause excessive vibration of the cooling tower or low efficiency of the cooling tower fan. Background technique [0002] When installing the axial flow fan of the cooling tower, in order to ensure that the installation angle of the fan blade is accurate and reliable, a straight scale line is generally marked on the fan blade in advance so as to correspond to the reference line on the fan blade disc. [0003] Since the fan blades are FRP (Fiberglass-Reinforced Plastics) blades, which are molded at one time without subsequent machining, t...
Claims
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IPC IPC(8): B41J3/407F04D29/38
Inventor 李麟添侯红立
Owner SHANGHAI KING SUN COOLING EQUIP