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A reinforced chain plate
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A reinforced, chain plate technology, applied in the field of chain transmission, can solve the problems of cracks and chain plate breakage in the weak area of the chain plate, and achieve the improvement of fatigue strength, tensile strength, tensile strength and fatigue strength. Effect
Active Publication Date: 2017-09-05
QINGDAO CHOHO IND CO LTD
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Problems solved by technology
[0004] In order to solve the problem that cracks are prone to occur in the weak area of the chain plate in the prior art and cause the chain plate to break, the purpose of the present invention is to provide a reinforced chain plate, which can improve the strength of the weak area of the chain plate, and enhance the tensile strength and fatigue of the chain. strength
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Embodiment 1
[0021] Taking the 06CF bushing chain as an example, the tensile strength capability and fatigue performance of the chain plate are verified through different designs.
[0022] The arc section of the chain plate is designed to be a semicircle, so that, near point C, the force on the chain plate is relatively weak, such as figure 1 shown.
Embodiment 2
[0024] Taking the 06CF bushing chain as an example, the tensile strength capability and fatigue performance of the chain plate are verified through different designs.
[0025] The semicircle segment is composed of three arcs with different radii. The radii of the arcs are different, and the width of the arc segment is actually increased by 7.5%. It includes the first arc, the second arc and the second arc in the counterclockwise direction along the chain plate. Three arcs, the radius r3 of the third arc > the radius r1 of the first arc > the radius r2 of the second arc, the radius r1 of the first arc ≥ the radius r of the original chain plate, the center of the first arc The angle is 8°, the central angle of the second arc is 62°, and the central angle of the third arc is 20°, such as figure 2 shown.
Embodiment 3
[0027] Taking the 06CF bushing chain as an example, the tensile strength capability and fatigue performance of the chain plate are verified through different designs.
[0028] The outer shape of the chain plate is a spline curve, and the function of the spline curve between AB is y=1.1488×10 -4 x 6 -8.8810×10 -4 x 4 +0.1098x 2 .
[0029] The chains of the two different design methods of Example 1, Example 2 and Example 3 were assembled to carry out tensile fracture test and fatigue test verification; the results are shown in Table 1.
[0030] It can be seen from Table 1 that the tensile strength of the chain is increased by 8.8% and the fatigue strength is increased by 3.1% after the arc segment width is increased by adopting arc segment structures with different radii; the arc segment structure using spline curves, Chain tensile strength increased by 9.2% and fatigue strength increased by 4.0%.
[0031] Table 1 Example results
[0032] parameter Example 1 ...
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Abstract
The invention provides a reinforced chain plate. The arc at the outer side of the chain plate is widened. According to the reinforced chain plate, the arc at the outer side of the chain plate is widened under the condition that the head width of the chain plate is unchanged, the stress condition of a weak link of the chain plate is changed, and the pulling stress value of an area with the maximum pulling stress is decreased; meanwhile, the design method that the arc section of the chain plate is a multi-curve section is provided according to the stress condition of the arc structure at the outer side of the chain plate, and the tensile strength and the fatigue strength of the chain plate are improved; according to a series of verification, compared with a traditional semicircle chain plate, the tensile strength of the chain plate is improved by 5-10%, and the fatigue strength of the chain plate is improved by 3-8%.
Description
technical field [0001] The invention relates to the technical field of chain transmission, in particular to a chain plate. Background technique [0002] Due to the tight and loose sides of the chain, the chain parts are subjected to alternating magnitudes of load. In each revolution of the chain link, the stress state of the chain plate is tension and bending. Under the action of alternating load, the weak link of the chain plate is prone to cracks, and as the cracks expand, the chain fatigue fractures. [0003] The outline of the traditional chain plate is designed as a semi-circular arc, and the upper part of the inner hole of the chain plate is the area with the largest tensile stress. Cracks are prone to occur during the working process and cause the chain plate to break. Therefore, improving the strength of the chain plate is an important means to improve the performance and life of the chain. Contents of the invention [0004] In order to solve the problem that cr...
Claims
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Application Information
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