Improved synchronizer gear hub and manufacturing method thereof
A manufacturing method and synchronizer technology, which are applied in clutches, mechanical drive clutches, mechanical equipment, etc., can solve the problems of increasing the rotational inertia of the transmission system, unreachable gear hubs of synchronizers, complicated manufacturing and processing processes, etc., and achieve a wide range of materials. , The effect of reducing design parameters and machining allowance
Active Publication Date: 2017-12-05
江西慧泰粉末注射成形产业科技协同创新有限公司
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Problems solved by technology
[0003] At the same time, in order to ensure the strength and fatigue life, the hub and spoke are usually made thicker, which increases the moment of inertia of the transmission system, which is not conducive to the smoothness of shifting.
Due to the limitations of the design and manufacturing process of the existing synchronizer gear hub, the manufacturing process of the existing gear hub is complicated, the material utilization rate is low, and the structural design of the synchronizer gear hub cannot achieve smaller quality and higher Excellent performance requirements
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[0041] The improved synchronizer gear hub and its manufacturing method of the present invention, for the redesign of the existing synchronizer gear hub, carry out stress analysis through computer aided engineering (CAE), and then carry out effective structural optimization means, so that the improved synchronizer manufactured Compared with the existing synchronizer gear hub, the synchronizer gear hub has better mechanical properties.
[0042] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.
[0043] see figure 2 As shown, it is a schematic flow chart of the steps of a method for manufacturing an improved synchronizer hub of the present invention. Preferably, the method for manufacturing the improved synchronizer hub includes:
[0044] Step one S1, select a synchronizer gear hub (such ...
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Abstract
The invention discloses an improved synchronizer gear hub and a manufacturing method thereof. The manufacturing method comprises the following steps that a synchronizer gear hub is selected, a three-dimensional model of the synchronizer gear hub is established, computer-aided engineering analysis is carried out on the three-dimensional model of the synchronizer gear hub, a material for manufacturing the improved synchronizer gear hub is selected, and the yield limit strength of the material is obtained; the three-dimensional model of the synchronizer gear hub is subjected to topological optimization and shape optimization according to the computer-aided engineering analysis result and the yield limit strength of the material, the material in a low-stress area of the synchronizer gear hub is removed, and the model of the improved synchronizer gear hub is formed; and according to the model of the improved synchronizer gear hub and the selected material, the improved synchronizer gear hub is manufactured through metal powder injection molding. Structure weight reduction can be effectively carried out on the synchronizer gear hub, and the mechanical performance of the synchronizer gear hub is improved.
Description
technical field [0001] The invention designs a synchronizer gear hub used in an automobile transmission, and in particular relates to an improved synchronizer gear hub capable of effectively reducing weight and improving performance and a manufacturing method thereof. Background technique [0002] The synchronizer gear hub is one of the parts with the worst working conditions in the manual transmission, and it is widely manufactured by powder metallurgy at present. The shape of this part is complex, and the performance requirements such as strength, stiffness, fatigue strength and wear resistance are all very high. The adoption of the powder metallurgy manufacturing method solves many problems such as cumbersome process flow, high processing cost, and low material utilization rate caused by the complex shape of the steel cutting process. The method of pressing forming + sintering can achieve a one-time near-net shape. , and then carry out a small amount of necessary machini...
Claims
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IPC IPC(8): F16D23/02B22F3/22
CPCB22F3/22F16D23/02
Inventor 黄若李森凯彭建国
Owner 江西慧泰粉末注射成形产业科技协同创新有限公司
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