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 discloses a torque bearing, which comprises an outer ring, an inner ring, a roller and a cage, wherein both the outer rolling path surface of the outer ring and the inner rolling path surface of the inner ring adopt quasi uniparted hyperboloids; the central outline surface of the cage adopts a uniparted hyperboloid; roller grooves are obliquely arranged on the cage to fix the roller; and the cage is arranged at a position that the cage deviates from the middle part between the inner rolling path surface of inner ring and the outer rolling path surface of the outer ring, and is close to the outer rolling path surface of the outer ring. On the bearing provided by the utility model, the central outline surface of the cage deviates from the outer rolling path surface or the inner rolling path surface of the torque bearing, no interference is generated between the cage and the two rings, the roller grooves can fix the roller, the axial thrust generated by the roller is offset by rolling path steps on the inner rolling path or the outer rolling path, and the cage of the torque bearing is prevented from being deformed under axial non-uniform force.

Description

A kind of moment bearing

Technical field

The utility model relates to a kind of moment bearing.

Background technique

The retainer of existing moment bearing is positioned at inner ring and neutral position, outer ring; Roller well width on the retainer and length are respectively greater than roller diameter and roller length; Holding retainer in service at axis of torque moves radially between inner ring and outer ring; Cause roller to produce tilting deviations, long-play can cause the retainer distortion, thereby influences the stable working property and the working life of moment bearing.

Summary of the invention

In order to address the above problem, the purpose of the utility model provides a kind of simple in structure, solves the moment bearing of the retainer of moment bearing because of deformed damaged.

The technological scheme of the utility model is: a kind of moment bearing, comprise outer ring, inner ring, roller and retainer, wherein, the outer roller surface of said outer ring and the interior roller surface of the inner ring hyperboloid of one sheet that all is as the criterion; The center contoured surface of said retainer is the hyperboloid of one sheet, and said retainer is provided with the roller groove that is used for fixing said roller of tilting arrangement; Said retainer 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 and said outer ring near said outer ring; Said roller places in the said roller groove; The two ends of the interior roller surface of said inner ring are provided with the step that is used to keep said roller axial position; Said roller slot length a is greater than the length of said roller, and said roller well width b is wideer than the chord length l of said retainer said roller that inwall cuts, but is not more than the diameter of said roller.

Further; Said retainer 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 and said inner ring near said inner ring; Said roller places in the said roller groove, and the two ends of the outer roller surface of said outer ring are provided with the step that is used to keep said roller axial position, and said roller slot length a is greater than the length of said roller; Said roller well width b is wideer than the chord length l of said retainer said roller that outer wall cuts, but is not more than the diameter of said roller.

The effect of having a mind to of the utility model is: owing to adopt technique scheme; Retainer center contoured surface deflection outer roller surface of moment bearing or interior roller surface; Retainer and Internal and external cycle do not interfere during axis of torque acknowledgement of consignment row; Simultaneously the roller groove can play the fixedly effect of roller position again, and the end thrust that roller produces is by the counteracting of the raceway step on the interior or outer raceway, prevents that the moment retainer receives axial inhomogeneous power and is out of shape.

Description of drawings

Fig. 1 is the hyperboloid of one sheet at contoured surface place, retainer center; Dash area is contoured surface position, retainer center among the figure.

Fig. 2 is the part sectioned view of the utility model moment bearing.

Fig. 3 is the structural representation of the utility model moment retainer deflection outer ring.

Fig. 4 is the A place enlarged diagram for Fig. 3.

Fig. 5 is the cross-sectional schematic of the utility model moment retainer deflection outer ring.

Fig. 6 is the structural representation of the utility model moment retainer deflection inner ring.

Fig. 7 is the cross-sectional schematic of the utility model moment retainer deflection inner ring.

Fig. 8 is the retainer structural representation of the utility model.

Fig. 9 is the B place enlarged diagram of Fig. 8.

Among the figure:

1, outer ring, 2, retainer, 3, inner ring, 4, roller, 5, roller groove 6, inner ring step, 7, the outer ring step.

Embodiment:

Further specify below in conjunction with the technological scheme of accompanying drawing the utility model.

Like Fig. 1 is the hyperboloid of one sheet at contoured surface place, retainer center; Dash area is contoured surface position, retainer center among the figure.

As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5 be the structural representation of the utility model moment retainer deflection outer ring.The outer roller surface of the outer ring 1 of this moment bearing and the interior roller surface of inner ring 3 hyperboloid of one sheet that all is as the criterion; The center contoured surface of retainer 2 is the hyperboloid of one sheet, and retainer 2 is provided with the roller groove 5 that is used for fixing roller 4 of tilting arrangement; Retainer 2 is located at the outer roller surface of the outer roller surface neutral position of the interior roller surface that departs from inner ring 3 and outer ring 1 near outer ring 1; Roller 4 places in the roller groove 5; The two ends of the interior roller surface of inner ring 3 are provided with the step 6 that is used to keep roller 4 axial positions; The length a of roller groove 5 is greater than the length of roller 4, and the width b of roller groove (5) is wideer than the chord length l of roller that retainer inwall cuts 4, but is not more than the diameter of roller.

As Fig. 6, shown in Figure 7 be the structural representation of the utility model moment retainer deflection inner ring.The retainer 2 of this moment bearing is located at the interior roller surface of the interior roller surface neutral position of the outer roller surface that departs from outer ring 1 and inner ring 3 near inner ring 3; Roller 4 places in the roller groove 5; The two ends of the outer roller surface of outer ring 1 are provided with the step 7 that is used to keep roller 4 axial positions; Roller groove 5 length a are greater than the length of roller 4, and roller groove 5 width b are wideer than the chord length l of retainer 2 rollers that outer wall cuts 4, but are not more 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).