A double meshing area arc tooth cylindrical gear mechanism and its processing method
A technology of cylindrical gear and arc tooth, which is applied in the field of double meshing area arc tooth cylindrical gear mechanism and its processing, can solve the problems of small load capacity, no corresponding patent and academic literature, etc., and achieve the elimination of axial load and symmetrical Easy to guarantee, good versatility
Active Publication Date: 2020-05-15
广州珈鹏科技有限公司
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However, a fact that cannot be ignored is that the herringbone gear transmission has two pairs of gear teeth meshing on the left and right, that is, it has two meshing areas. Under the same parameters, its load-carrying capacity is twice that of the helical gear. The gear has only one meshing area, and under the same parameters, its load capacity is obviously smaller than that of the herringbone tooth
[0003] The Chinese Patent Publication No. CN101890540A discloses a two-way enveloping machining method of a spiral tooth surface of a spiral tooth cylindrical gear, and the Chinese Patent Publication No. CN1584371 discloses a spiral tooth cylindrical gear belonging to the technical field of gears and its Processing methods and processing devices. In addition, the existing academic literature mainly studies the forming process and processing of arc teeth. There are no corresponding patents and academic literature for arc teeth in double meshing zones.
image 3 is the load distribution of a helical tooth with a double meshing zone at a certain contact position, Figure 4 It is the load distribution of the arc-toothed cylindrical gear in the single meshing area. Theoretically, because the single-meshing area has to bear the total load, the strength of the traditional arc-toothed cylindrical gear in the single-meshing area is less than half of the strength of the herringbone cylindrical gear, and the material is loaded Non-linearity of elastic deformation and stress
Therefore, the strength of the arc tooth cylindrical gear needs to be further improved
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[0033] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0034] Such as Figure 5 As shown, in the existing processing method of arc-toothed cylindrical gear, the axial section tooth profile of the tool is the same as the end face tooth profile of the standard straight rack cutter, but the tool is a disc-shaped tool, that is, the ring surface of the normal tooth profile around its axis . The machining process is that the tool rotates around its own axis ω c , and at the same time the center of the tool is translated v in the horizontal plane c , the processed gear rotates around its own axis ω 2 , ω 2 with v c Constitute the developing motion, ω c For cutting motion, since the cutting motion is performed by t...
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The invention relates to a cylindrical gear mechanism with double meshing zones and arc teeth and a method for machining the cylindrical gear mechanism. The cylindrical gear mechanism is provided with two cylindrical gears. A plurality of arc teeth are arranged in each cylindrical gear, an optional arc tooth in one cylindrical gear is meshed with an optional arc tooth in the other cylindrical gear, and meshing zones of each two corresponding arc teeth are provided with meshing points which are symmetrically distributed. The method for machining the cylindrical gear mechanism includes particular machining steps of a, respectively arranging two selected conical cutters on the left side and the right side of a selected cylindrical gear in a mirror manner and aligning the cutters with the cylindrical gear at one step; b, machining a tooth space or tooth surfaces of two sides of adjacent tooth spaces on the cylindrical gear by the aid of the two conical cutters and reserving an oil storage zone on the cylindrical gear. The cylindrical gear mechanism and the method have the advantages that the bearing capacity and the strength of the existing cylindrical gears with the arc teeth can be improved by the cylindrical gear mechanism, so that the cylindrical gear mechanism can be used in heavy-load places; the cylindrical gear mechanism can be manufactured by the aid of the method, and accordingly a foundation can be laid for industrial application of the cylindrical gear mechanism.
Description
technical field [0001] The invention relates to the technical field of gears, in particular to a double meshing zone arc tooth cylindrical gear mechanism and a processing method thereof. Background technique [0002] The research shows that the arc-tooth cylindrical gear has good meshing performance, high degree of coincidence, no axial force, low installation requirements, and has the advantages of stable transmission, low noise, and high efficiency. In the field of mechanical transmission, it can replace straight teeth, helical teeth and herringbone gear mechanisms. However, a fact that cannot be ignored is that the herringbone gear transmission has two pairs of gear teeth meshing on the left and right, that is, it has two meshing areas. Under the same parameters, its load-carrying capacity is twice that of the helical gear. The gear has only one meshing area. Under the same parameters, its load capacity is obviously smaller than that of the herringbone. [0003] The Chi...
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IPC IPC(8): F16H55/08B23F9/00
CPCB23F9/00F16H55/0826
Inventor 彭先龙
Owner 广州珈鹏科技有限公司
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