Assembly structure, method and fixture of pulley and bearing
A bearing assembly and pulley technology, applied in the direction of belts/chains/gears, rigid brackets of bearing components, bearing components, etc., can solve the problems of inability to meet the needs of mass rapid production, complex processing and assembly, and high cost, and achieve finished product quality and accuracy. Reliable, low wastage of raw materials, and the effect of improving assembly efficiency
Active Publication Date: 2012-07-04
WUXI YONGKAIDA GEAR
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Problems solved by technology
[0003] Aiming at the disadvantages of complex processing and assembly, high cost, low efficiency, and inability to meet the needs of mass rapid production in the above-mentioned existing assembly of pulleys and bearings, the applicant provides a structure, method and fixture for assembling pulleys and bearings, which has a reasonable structure , low cost, efficient assembly, and greatly improve the accuracy and reliability of finished products
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[0029] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.
[0030] Such as figure 2 , image 3 , Figure 4 As shown, the outer circumference of the bearing 2 is in interference fit with the inner hole of the pulley 1, and a plurality of evenly distributed riveting points are pressure riveted on both sides of the inner hole circumference of the pulley 1, and the riveting points are partially squeezed into the rounding or The chamfered part can realize the axial positioning of the bearing and prevent the axial movement of the bearing.
[0031] Correspondingly, the assembly method of the pulley and the bearing of the present invention comprises the following steps:
[0032] The first step: interference fit the bearing on the inner wall of the inner hole of the pulley;
[0033] Step 2: Squeeze the end faces on both sides of the inner hole circumference of the pulley to form a number of riveting po...
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The invention relates to an assembly structure of a pulley and a bearing and a method and fixture for manufacturing the assembly structure. The outer ring periphery of the bearing is in interference fit with the inner bore of the pulley. The assembly structure is characterized in that riveted structures are distributed on the end surfaces at the two sides of the inner bore circumference of the pulley; and part of the pulley materials on the riveted structures is extruded into the rounding portion of the outer ring periphery of the bearing. The assembly structure and method radically change the processing and assembling modes of the conventional steel pulleys, the assembly fixture adopted by the invention can synchronously complete the bearing pressing process and double-sided press riveting process of the pulley conveniently, quickly and accurately, and the press rivet points at the two ends can effectively prevent the bearing from moving axially in the inner bore of the pulley, thus greatly lowering the production cost, saving the production time, improving the assembly efficiency, ensuring the product quality and reliability and meeting the requirement of volume production.
Description
technical field [0001] The invention relates to the field of belt transmission components, in particular to a structure, a method and a fixture for assembling a belt pulley and a bearing. Background technique [0002] Belt drive systems are widely used in mechanical power equipment such as motors, engines and clutches. The inner hole of the steel pulley has a small interference fit with the outer ring of the bearing. In order to prevent the axial movement of the bearing in the inner hole of the pulley, such as figure 1 As shown, the current general assembly method is to machine two retaining ring grooves on the inner hole wall of the pulley 1. When assembling, firstly install one of the retaining rings 3 into the retaining ring groove of the pulley 1, and then use a special tooling fixture to install the bearing 2 Press into the inner hole of pulley 1 with interference, and finally install another retaining ring 3 into another retaining ring groove of pulley 1. This assemb...
Claims
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IPC IPC(8): F16C35/06F16H55/36B21J15/42
Inventor 花正明荣兆明许秋海顾锡强陈链缪明陈晓东
Owner WUXI YONGKAIDA GEAR