CN103759613B - A kind of method utilizing moment of friction to produce turntable bearing - Google Patents
A kind of method utilizing moment of friction to produce turntable bearing Download PDFInfo
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Abstract
一种转盘轴承负游隙的确定方法，首先制备外圈尺寸与预先设计尺寸相同，具有一定欠磨量的内圈并组装成负游隙轴承；然后保持轴承外圈尺寸不变，在弹性范围内逐渐缩小轴承内圈的欠磨量，测量某一欠磨量时轴承相应的摩擦力矩，并绘制欠磨量增加与摩擦力矩变化的关系图；由于负游隙与欠磨量为对应关系，因此根据绘制的关系图，得出负游隙与摩擦力矩的关系，从而实现根据摩擦力矩确定转盘轴承的负游隙。本发明通过将负游隙用欠磨量来表征，然后再建立欠磨量与摩擦力矩的关系图，通过测量转盘轴承的摩擦力矩来直观的得出欠磨量以及负游隙的大小。该方法简便易行，而且测量的准确性也较高。A method for determining the negative clearance of a slewing bearing. Firstly, an inner ring with the same outer ring size as the pre-designed size and a certain underwear is prepared and assembled into a negative clearance bearing; Gradually reduce the amount of underwear of the inner ring of the bearing, measure the corresponding friction torque of the bearing at a certain amount of underwear, and draw the relationship diagram between the increase of underwear and the change of friction torque; since the negative clearance and underwear are in a corresponding relationship, Therefore, according to the drawn relationship diagram, the relationship between the negative clearance and the friction torque is obtained, so as to realize the determination of the negative clearance of the slewing bearing according to the friction torque. The present invention characterizes the negative clearance by the amount of underwear, and then establishes a relationship diagram between the amount of underwear and the friction torque, and intuitively obtains the amount of underwear and the size of the negative clearance by measuring the friction moment of the slewing bearing. The method is simple and easy to implement, and the measurement accuracy is also high.
Description
技术领域 technical field
本发明涉及到机械领域的转盘轴承，具体的说是一种转盘轴承负游隙（也称预过盈）的确定方法。 The invention relates to a turntable bearing in the mechanical field, in particular to a method for determining the negative clearance (also called pre-interference) of the turntable bearing.
背景技术 Background technique
轴承的游隙通常情况下大于零，而在一些要求运动非常平稳的场合，如雷达、风机等场合使用的转盘轴承，要求实现轴承负游隙，即游隙值小于零，负游隙的大小由于属弹性变形范畴，无法直接测量。 The clearance of the bearing is usually greater than zero, and in some occasions that require very stable motion, such as slewing bearings used in radars, fans, etc., it is required to achieve negative clearance of the bearing, that is, the clearance value is less than zero, and the size of the negative clearance Since it belongs to the category of elastic deformation, it cannot be directly measured.
发明内容 Contents of the invention
为解决现有转盘轴承的负游隙量无法直接测量的问题，本发明提供了一种转盘轴承负游隙的确定方法，通过测定转盘轴承的摩擦力矩来间接表征转盘轴承的负游隙。 In order to solve the problem that the negative clearance of the existing slewing bearing cannot be directly measured, the present invention provides a method for determining the negative clearance of the slewing bearing, which indirectly characterizes the negative clearance of the slewing bearing by measuring the friction torque of the slewing bearing.
本发明为解决上述技术问题采用的技术方案为：一种转盘轴承负游隙的确定方法，包括以下步骤： The technical solution adopted by the present invention to solve the above technical problems is: a method for determining the negative clearance of a slewing bearing, comprising the following steps:
1）根据预先设计的轴承外圈尺寸加工轴承外圈，然后在预先设计的轴承内圈尺寸的基础上增加一定的额外尺寸以制成具有一定欠磨量的轴承内圈； 1) Process the bearing outer ring according to the pre-designed bearing outer ring size, and then add a certain extra size on the basis of the pre-designed bearing inner ring size to make a bearing inner ring with a certain underwear;
2）利用步骤1）加工的轴承外圈和具有欠磨量的轴承内圈装配成负游隙轴承，并记录此时的欠磨量以及摩擦力矩； 2) Use the bearing outer ring processed in step 1) and the bearing inner ring with underwear to assemble a negative clearance bearing, and record the underwear and friction torque at this time;
3）保持轴承外圈尺寸不变，将轴承内圈在弹性变形范围内欠磨，从而逐渐减小轴承内圈的欠磨量，在此过程中，测量某一欠磨量时轴承相应的摩擦力矩，然后绘制欠磨量与摩擦力矩的对应关系图； 3) Keep the size of the outer ring of the bearing unchanged, and underwear the inner ring of the bearing within the elastic deformation range, thereby gradually reducing the amount of underwear of the inner ring of the bearing. In the process, measure the corresponding friction of the bearing when a certain amount of underwear is measured Torque, and then draw the corresponding relationship between underwear and friction torque;
4）由于负游隙与欠磨量为对应关系，因此根据步骤4）绘制的欠磨量与摩擦力矩的对应关系图，得出负游隙与摩擦力矩的关系，从而实现根据摩擦力矩确定转盘轴承的负游隙。 4) Since the negative clearance and the amount of underwear correspond to each other, according to the corresponding relationship between the amount of underwear and the friction torque drawn in step 4), the relationship between the negative clearance and the friction torque can be obtained, so as to realize the determination of the turntable according to the friction torque Negative clearance of the bearing.
本发明所述的欠磨量是指内圈辊道的实际尺寸大于内圈辊道设计尺寸的数值。 The amount of underwear in the present invention refers to the value that the actual size of the inner ring roller table is greater than the design size of the inner ring roller table.
有益效果：本发明通过将负游隙用欠磨量来表征，然后再建立欠磨量与摩擦力矩的关系图，通过测量转盘轴承的摩擦力矩来直观的得出欠磨量以及负游隙的大小。该方法简便易行，而且测量的准确性也较高。 Beneficial effects: the present invention characterizes the negative clearance by the amount of underwear, and then establishes a relationship diagram between the amount of underwear and the friction torque, and intuitively obtains the amount of underwear and the size of the negative clearance by measuring the friction moment of the slewing bearing . The method is simple and easy to implement, and the measurement accuracy is also high.
具体实施方式 detailed description
下面结合具体实施例对本发明做进一步的阐述。 The present invention will be further elaborated below in conjunction with specific embodiments.
一种转盘轴承负游隙的确定方法，包括以下步骤： A method for determining the negative clearance of a turntable bearing, comprising the following steps:
1）根据预先设计的轴承外圈尺寸加工轴承外圈，然后在预先设计的轴承内圈尺寸的基础上增加一定的额外尺寸以制成具有一定欠磨量的轴承内圈； 1) Process the bearing outer ring according to the pre-designed bearing outer ring size, and then add a certain extra size on the basis of the pre-designed bearing inner ring size to make a bearing inner ring with a certain underwear;
2）利用步骤1）加工的轴承外圈和具有欠磨量的轴承内圈装配成负游隙轴承，并记录此时的欠磨量以及摩擦力矩； 2) Use the bearing outer ring processed in step 1) and the bearing inner ring with underwear to assemble a negative clearance bearing, and record the underwear and friction torque at this time;
3）保持轴承外圈尺寸不变，将轴承内圈在弹性变形范围内欠磨，从而逐渐减小轴承内圈的欠磨量，在此过程中，测量某一欠磨量时轴承相应的摩擦力矩，然后绘制欠磨量与摩擦力矩的对应关系图； 3) Keep the size of the outer ring of the bearing unchanged, and underwear the inner ring of the bearing within the elastic deformation range, thereby gradually reducing the amount of underwear of the inner ring of the bearing. In the process, measure the corresponding friction of the bearing when a certain amount of underwear is measured Torque, and then draw the corresponding relationship between underwear and friction torque;
4）由于负游隙与欠磨量为对应关系，因此根据步骤4）绘制的欠磨量与摩擦力矩的对应关系图，得出负游隙与摩擦力矩的关系，从而实现根据摩擦力矩确定转盘轴承的负游隙。 4) Since the negative clearance and the amount of underwear correspond to each other, according to the corresponding relationship between the amount of underwear and the friction torque drawn in step 4), the relationship between the negative clearance and the friction torque can be obtained, so as to realize the determination of the turntable according to the friction torque Negative clearance of the bearing.
利用本发明的上述方法不仅可以测量已有转盘轴承的负游隙，而且也可以设计满足需要的负游隙转盘轴承，比如，需要设计一个负游隙转盘轴承来满足需要，此时就可以用到本发明的方法： Using the above method of the present invention can not only measure the negative clearance of the existing slewing bearing, but also design a negative clearance slewing bearing that meets the needs. For example, it is necessary to design a negative clearance slewing bearing to meet the needs. To the method of the present invention:
1）根据预先设计的轴承外圈尺寸加工轴承外圈，然后在预先设计的轴承内圈尺寸的基础上增加一定的额外尺寸以制成具有一定欠磨量的轴承内圈； 1) Process the bearing outer ring according to the pre-designed bearing outer ring size, and then add a certain extra size on the basis of the pre-designed bearing inner ring size to make a bearing inner ring with a certain underwear;
2）利用步骤1）加工的轴承外圈和具有欠磨量的轴承内圈装配成负游隙轴承，并记录此时的欠磨量以及摩擦力矩； 2) Use the bearing outer ring processed in step 1) and the bearing inner ring with underwear to assemble a negative clearance bearing, and record the underwear and friction torque at this time;
3）保持轴承外圈尺寸不变，将轴承内圈在弹性变形范围内欠磨，从而逐渐减小轴承内圈的欠磨量，在此过程中，测量某一欠磨量时轴承相应的摩擦力矩，然后绘制欠磨量与摩擦力矩的对应关系图； 3) Keep the size of the outer ring of the bearing unchanged, and underwear the inner ring of the bearing within the elastic deformation range, thereby gradually reducing the amount of underwear of the inner ring of the bearing. In the process, measure the corresponding friction of the bearing when a certain amount of underwear is measured Torque, and then draw the corresponding relationship between underwear and friction torque;
4）根据使用时转盘轴承的摩擦力矩，在步骤3）绘制的欠磨量与摩擦力矩的对应关系图中找出该摩擦力矩对应的轴承内圈欠磨量数值，并依照该欠磨量数值加工轴承的内外圈，进而完成负游隙转盘轴承的装配。 4) According to the friction torque of the slewing bearing during use, find the value of the underwear amount of the inner ring of the bearing corresponding to the friction torque in the corresponding relationship between the amount of underwear and the friction torque drawn in step 3), and according to the value of the amount of underwear Process the inner and outer rings of the bearing, and then complete the assembly of the negative clearance slewing bearing.
为了精确的测量，设计轴承时，外圈按照正常的尺寸参数加工，通过改变内圈的大小来实现负游隙。 For accurate measurement, when designing the bearing, the outer ring is processed according to the normal size parameters, and the negative clearance is realized by changing the size of the inner ring.
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| CN109555784B (en) * | 2018-11-27 | 2020-06-23 | 山东洛轴所轴承研究院有限公司 | Grinding method for crossed cylindrical roller bearing ring for robot |
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