CN202144830U

CN202144830U - Torque bearing

Info

Publication number: CN202144830U
Application number: CN201120253940U
Authority: CN
Inventors: 冯明; 连军伟
Original assignee: University of Science and Technology Beijing USTB
Current assignee: University of Science and Technology Beijing USTB
Priority date: 2011-07-18
Filing date: 2011-07-18
Publication date: 2012-02-15
Anticipated expiration: 2021-07-18

Abstract

The utility model is a moment bearing, which comprises an outer ring, an inner ring, a roller and a cage, the outer raceway surface of the outer ring and the inner raceway surface of the inner ring are both quasi-unilobal hyperboloid surfaces; the central profile surface of the cage It is a single-leaf hyperboloid, and the cage is provided with obliquely arranged roller grooves for fixing the rollers; the cage is set in the middle of the inner raceway surface of the inner ring and the outer raceway surface of the outer ring, and is close to the outer ring. Outer raceway. The central contour surface of the cage of the utility model is biased towards the outer raceway surface or the inner raceway surface of the moment bearing. When the moment bearing is running, the cage does not interfere with the inner and outer rings. At the same time, the roller groove can also play the role of fixing the position of the roller. The axial thrust generated by the sub is offset by the raceway steps on the inner or outer raceway, preventing the moment bearing cage from being deformed by axial uneven force.

Description

a moment bearing

技术领域 technical field

本实用新型涉及一种力矩轴承。 The utility model relates to a moment bearing.

背景技术 Background technique

现有力矩轴承的保持架位于内圈与外圈中间位置，保持架上的滚子槽宽度和长度分别大于滚子直径和滚子长度，在力矩轴承运行中保持架在内圈与外圈间发生径向移动，导致滚子产生斜置定位偏差，长时间运行会导致保持架变形，从而影响力矩轴承的工作平稳性和使用寿命。 The cage of the existing moment bearing is located in the middle of the inner ring and the outer ring, and the width and length of the roller groove on the cage are respectively larger than the diameter and length of the roller. During the operation of the moment bearing, the cage between the inner ring and the outer ring Radial movement occurs, resulting in oblique positioning deviation of the rollers, and long-term operation will cause deformation of the cage, thereby affecting the working stability and service life of the moment bearing.

发明内容 Contents of the invention

为了解决上述问题，本实用新型的目的是提供一种结构简单，解决力矩轴承的保持架因变形损坏的力矩轴承。 In order to solve the above problems, the purpose of this utility model is to provide a moment bearing with simple structure, which can solve the damage of the cage of the moment bearing due to deformation.

本实用新型的技术方案是：一种力矩轴承，包括外圈、内圈、滚子和保持架，其中，所述外圈的外滚道面和内圈的内滚道面均为准单叶双曲面；所述保持架的中心轮廓面为单叶双曲面，所述保持架上设有斜置排列的用于固定所述滚子的滚子槽；所述保持架设在偏离所述内圈的内滚道面与所述外圈的外滚道面中间位置靠近所述外圈的外滚道面，所述滚子置于所述滚子槽内，所述内圈的内滚道面的两端设有用于保持所述滚子轴向位置的台阶，所述滚子槽长度a大于所述滚子的长度，所述滚子槽宽度b比所述保持架内壁所截所述滚子的弦长l宽，但不大于所述滚子的直径。 The technical solution of the utility model is: a moment bearing, including an outer ring, an inner ring, rollers and a cage, wherein the outer raceway surface of the outer ring and the inner raceway surface of the inner ring are both quasi-single leaf hyperboloid; the central contour surface of the cage is a single-leaf hyperboloid, and the cage is provided with obliquely arranged roller grooves for fixing the rollers; The middle position between the inner raceway surface of the outer ring and the outer raceway surface of the outer ring is close to the outer raceway surface of the outer ring, the rollers are placed in the roller grooves, and the inner raceway surface of the inner ring The two ends of the roller are provided with steps for maintaining the axial position of the roller, the length a of the roller groove is greater than the length of the roller, and the width b of the roller groove is smaller than that of the roller cut by the inner wall of the cage. The chord length l of the child is wide, but not greater than the diameter of the roller.

进一步，所述保持架设在偏离所述外圈的外滚道面与所述内圈的内滚道面中间位置靠近所述内圈的内滚道面，所述滚子置于所述滚子槽内，所述外圈的外滚道面的两端设有用于保持所述滚子轴向位置的台阶，所述滚子槽长度a大于所述滚子的长度，所述滚子槽宽度b比所述保持架外壁所截所述滚子的弦长l宽,但不大于所述滚子的直径。 Further, the cage is set at a position that deviates from the middle of the outer raceway surface of the outer ring and the inner raceway surface of the inner ring and is close to the inner raceway surface of the inner ring, and the rollers are placed on the rollers In the groove, the two ends of the outer raceway surface of the outer ring are provided with steps for maintaining the axial position of the roller, the length a of the roller groove is greater than the length of the roller, and the width of the roller groove b is wider than the chord length l of the roller cut by the outer wall of the cage, but not larger than the diameter of the roller.

本实用新型的有意效果是：由于采用上述技术方案，保持架中心轮廓面偏向力矩轴承外滚道面或内滚道面，力矩轴承运行时保持架与内外圈不发生干涉，同时滚子槽又可起到固定滚子位置的作用，滚子产生的轴向推力被内或外滚道上的滚道台阶抵消，防止力矩轴承保持架受轴向不均匀力而变形。 The intentional effect of the utility model is: due to the adoption of the above technical scheme, the center contour surface of the cage is biased towards the outer raceway surface or the inner raceway surface of the moment bearing, and the cage does not interfere with the inner and outer rings when the moment bearing is running, and at the same time, the roller groove It can play the role of fixing the position of the rollers. The axial thrust generated by the rollers is offset by the raceway steps on the inner or outer raceway, preventing the moment bearing cage from being deformed by axial uneven force.

附图说明 Description of drawings

图1是保持架中心轮廓面所在的单叶双曲面；图中阴影部分是保持架中心轮廓面位置。 Figure 1 is the single-leaf hyperboloid where the central contour surface of the cage is located; the shaded part in the figure is the position of the central contour surface of the cage.

图2是本实用新型力矩轴承的局部剖面图。 Fig. 2 is a partial sectional view of the moment bearing of the present invention.

图3是本实用新型力矩轴承保持架偏向外圈的结构示意图。 Fig. 3 is a schematic structural view of the moment bearing cage of the present invention biased towards the outer ring.

图4是为图3的A处放大示意图。 FIG. 4 is an enlarged schematic diagram of A in FIG. 3 .

图5是本实用新型力矩轴承保持架偏向外圈的剖视示意图。 Fig. 5 is a schematic cross-sectional view of the moment bearing cage of the present invention biased toward the outer ring.

图6是本实用新型力矩轴承保持架偏向内圈的结构示意图。 Fig. 6 is a schematic diagram of the structure of the moment bearing cage of the present invention biased towards the inner ring.

图7是本实用新型力矩轴承保持架偏向内圈的剖视示意图。 Fig. 7 is a schematic cross-sectional view of the moment bearing cage of the present invention deflecting to the inner ring.

图8是本实用新型的保持架结构示意图。 Fig. 8 is a schematic structural view of the cage of the present invention.

图9是图8的B处放大示意图。 FIG. 9 is an enlarged schematic view of B in FIG. 8 .

图中： In the picture:

1、外圈，2、保持架，3、内圈，4、滚子，5、滚子槽6、内圈台阶，7、外圈台阶。 1. Outer ring, 2. Cage, 3. Inner ring, 4. Roller, 5. Roller groove 6. Inner ring step, 7. Outer ring step.

具体实施方式： Detailed ways:

下面结合附图对本实用新型的技术方案做进一步说明。 Below in conjunction with accompanying drawing, technical scheme of the present utility model is described further.

如图1是保持架中心轮廓面所在的单叶双曲面；图中阴影部分是保持架中心轮廓面位置。 As shown in Figure 1, the single-leaf hyperboloid where the central contour surface of the cage is located; the shaded part in the figure is the position of the central contour surface of the cage.

如图2、图3、图4、图5所示为本实用新型力矩轴承保持架偏向外圈的结构示意图。该力矩轴承的外圈1的外滚道面和内圈3的内滚道面均为准单叶双曲面；保持架2的中心轮廓面为单叶双曲面，保持架2上设有斜置排列的用于固定滚子4的滚子槽5；保持架2设在偏离内圈3的内滚道面与外圈1的外滚道面中间位置靠近外圈1的外滚道面，滚子4置于滚子槽5内，内圈3的内滚道面的两端设有用于保持滚子4轴向位置的台阶6，滚子槽5的长度a大于滚子4的长度，滚子槽（5）的宽度b比保持架内壁所截滚子4的弦长l宽,但不大于滚子的直径。 Fig. 2, Fig. 3, Fig. 4 and Fig. 5 are schematic structural diagrams of the cage of the moment bearing of the present invention biased towards the outer ring. The outer raceway surface of the outer ring 1 of the moment bearing and the inner raceway surface of the inner ring 3 are both quasi-single-lobe hyperboloids; the central contour surface of the cage 2 is a single-lobe hyperboloid, and the cage 2 is equipped Arranged roller grooves 5 for fixing the rollers 4; the cage 2 is located in the middle position away from the inner raceway surface of the inner ring 3 and the outer raceway surface of the outer ring 1, and is close to the outer raceway surface of the outer ring 1. The roller 4 is placed in the roller groove 5, and the two ends of the inner raceway surface of the inner ring 3 are provided with a step 6 for maintaining the axial position of the roller 4. The length a of the roller groove 5 is greater than the length of the roller 4. The width b of the sub-groove (5) is wider than the chord length l of the roller 4 cut by the inner wall of the cage, but not greater than the diameter of the roller.

如图6、图7所示为本实用新型力矩轴承保持架偏向内圈的结构示意图。该力矩轴承的保持架2设在偏离外圈1的外滚道面与内圈3的内滚道面中间位置靠近内圈3的内滚道面，滚子4置于滚子槽5内，外圈1的外滚道面的两端设有用于保持滚子4轴向位置的台阶7，滚子槽5长度a大于滚子4的长度，滚子槽5宽度b比保持架2外壁所截滚子4的弦长l宽，但不大于滚子4的直径。 As shown in Fig. 6 and Fig. 7, the structural schematic diagrams of the moment bearing cage of the present invention are biased towards the inner ring. The cage 2 of the moment bearing is located in the middle of the outer raceway surface of the outer ring 1 and the inner raceway surface of the inner ring 3, and is close to the inner raceway surface of the inner ring 3, and the roller 4 is placed in the roller groove 5. Both ends of the outer raceway surface of the outer ring 1 are provided with steps 7 for maintaining the axial position of the roller 4, the length a of the roller groove 5 is greater than the length of the roller 4, and the width b of the roller groove 5 is smaller than that of the outer wall of the cage 2. The chord length l of cut roller 4 is wide, but not greater than the diameter of roller 4.

Claims

1. a moment bearing comprises outer ring (1), inner ring (3), roller (4) and retainer (2), it is characterized in that the interior roller surface of the outer roller surface of said outer ring (1) and inner ring (3) hyperboloid of one sheet that all is as the criterion; The center contoured surface of said retainer (2) is the hyperboloid of one sheet, and said retainer (2) is provided with the roller groove (5) of said roller of being used for fixing of tilting arrangement (4); Said retainer (2) is located at the outer roller surface of the outer roller surface neutral position of the interior roller surface that departs from said inner ring (3) and said outer ring (1) near said outer ring (1); Said roller (4) places in the said roller groove (5); The two ends of the interior raceway of said inner ring (3) are provided with the inner ring step (6) that is used to keep said roller (4) axial position; Said roller groove (5) length a is greater than the length of said roller (4); Said roller groove (5) width b is wideer than the chord length that said retainer (2) inwall cuts said roller (4), but is not more than the diameter of said roller (4).

2. a kind of moment bearing according to claim 1; It is characterized in that; Said retainer (2) is located at the interior roller surface of the interior roller surface neutral position of the outer roller surface that departs from said outer ring (1) and said inner ring (3) near said inner ring (3); Said roller (4) places in the said roller groove (5); The two ends of the outer roller surface of said outer ring (1) are provided with the outer ring step (7) that is used to keep said roller (4) axial position; Said roller groove (5) length a is greater than the length of said roller (4), and said roller groove (5) width b is wideer than the chord length that said retainer (2) outer wall cuts said roller (4), but is not more than the diameter of said roller (4).