Treadmill roller bearing positioning structure

Abstract

The utility model discloses a treadmill roller bearing positioning structure which comprises a roller body, a positioning structure and a fixing structure, the positioning structure is arranged on the roller body, the fixing structure is arranged on the positioning structure, and the positioning structure comprises a first inclined face, an outer ring shell, balls, a retainer, an inner ring shell, a supporting shaft and a positioning seat. The first inclined face is arranged in the roller body, the outer ring shell is inserted into the roller body, the balls are fixedly arranged in the outer ring shell, and the retainer wraps the balls in a rolling mode. The utility model belongs to the technical field of bearing positioning, and particularly relates to a roller bearing positioning structure of a treadmill, which effectively solves the problems that the roller bearing positioning structure of the treadmill needs to be manufactured and assembled by a precise instrument, the assembling cost is high, and a hole matched with a bearing needs to be manufactured for positioning the bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing positioning, and particularly relates to a bearing positioning structure for a treadmill roller. Background Art

[0002] With the gradual improvement of the economic level, more and more people begin to pay attention to the protection of physical health. Running is one of the ways to protect physical health. In order to carry out running exercises on rainy days, etc., indoor treadmills have come into being accordingly, and most indoor treadmills are equipped with rollers.

[0003] However, the existing bearing positioning structure for a treadmill roller requires precise instruments for manufacturing and assembly, with high assembly costs. It is necessary to manufacture holes that match the bearings for bearing positioning. Summary of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a bearing positioning structure for a treadmill roller, which effectively solves the problems that the bearing positioning structure for a treadmill roller requires precise instruments for manufacturing and assembly, has high assembly costs, and needs to manufacture holes that match the bearings for bearing positioning.

[0005] The technical solution adopted by the utility model is as follows: A bearing positioning structure for a treadmill roller proposed by the utility model includes a roller main body, a positioning structure, and a fixing structure. The positioning structure is arranged on the roller main body, and the fixing structure is arranged on the positioning structure. The positioning structure includes an inclined surface 1, an outer ring shell, a ball, a cage, an inner ring shell, a support shaft, and a positioning seat. The inclined surface 1 is arranged inside the roller main body. The outer ring shell is inserted into the roller main body. The ball is fixedly arranged inside the outer ring shell. The cage is wrapped around the ball for rolling. The inner ring shell is fixedly arranged inside the ball. The support shaft penetrates through and wraps the inner ring shell. The positioning seat is arranged inside the roller main body by threading.

[0006] Preferably, the fixing structure includes an inclined surface 2 and an extrusion bolt. The inclined surface 2 is arranged inside the positioning seat, and the extrusion bolt penetrates through the inclined surface 2 and is fixedly arranged by threading.

[0007] To better achieve the positioning effect, threads are arranged at both ends inside the roller main body.

[0008] To achieve the positioning purpose faster, the inclination angles of the inclined surface 1 and the inclined surface 2 are the same but in opposite directions.

[0009] Furthermore, the positioning seat is arranged in a cylindrical shape.

[0010] To achieve the fixing effect, several groups of extrusion bolts are arranged, and the extrusion bolts are pressed against the outer side of the outer ring shell.

[0011] The beneficial effects achieved by the present utility model with the above structure are as follows: A positioning structure for a treadmill roller bearing proposed in this solution clamps and fixes the outer ring housing on the positioning seat through the first inclined surface. Since the first inclined surface and the second inclined surface are inclined, after the outer ring housing is clamped, it is positioned at the central position, thus realizing rapid assembly and positioning. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of a positioning structure for a treadmill roller bearing proposed by the present utility model;

[0013] Figure 2 It is a schematic sectional structure diagram of a positioning structure for a treadmill roller bearing proposed by the present utility model;

[0014] Figure 3 It is another schematic sectional structure diagram of a positioning structure for a treadmill roller bearing proposed by the present utility model.

[0015] Among them, 1. Roller main body, 2. Positioning structure, 3. Fixing structure, 4. First inclined surface, 5. Outer ring housing, 6. Ball, 7. Cage, 8. Inner ring housing, 9. Support shaft, 10. Positioning seat, 11. Second inclined surface, 12. Extrusion bolt.

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Such as Figure 1 、 Figure 2 and Figure 3As shown in the figure, a positioning structure for a treadmill roller bearing proposed by the present utility model includes a roller main body 1, a positioning structure 2, and a fixing structure 3. The positioning structure 2 is provided on the roller main body 1. Threads are provided at both ends inside the roller main body 1. The fixing structure 3 is provided on the positioning structure 2. The positioning structure 2 includes an inclined surface 4, an outer ring housing 5, a ball 6, a cage 7, an inner ring housing 8, a support shaft 9, and a positioning seat 10. The inclined surface 4 is provided inside the roller main body 1. The outer ring housing 5 is inserted into the roller main body 1. The ball 6 is fixedly provided inside the outer ring housing 5. The cage 7 is wrapped around the ball 6 for rolling. The inner ring housing 8 is fixedly provided inside the ball 6. The support shaft 9 passes through and is wrapped by the inner ring housing 8. The positioning seat 10 is provided on the inner side of the roller main body 1 by threading, and the positioning seat 10 is set in a cylindrical shape.

[0019] As Figure 3 shown, the fixing structure 3 includes an inclined surface 11 and an extrusion bolt 12. The inclined surface 11 is provided on the inner side of the positioning seat 10. The inclination angle of the inclined surface 4 is the same as that of the inclined surface 11 but in the opposite direction. The extrusion bolt 12 passes through the inclined surface 11 and is fixedly provided by threading. A number of groups of extrusion bolts 12 are provided, and the extrusion bolts 12 are extruded on the outer side of the outer ring housing 5.

[0020] During specific use, when a user uses this device, first pass the support shaft 9 through the roller main body 1, then insert the inner ring housing 8 from both ends of the support shaft 9, then insert the inner ring housing 8 into the roller main body 1, and then screw the positioning seat 10 through the support shaft 9 onto the inner wall of the roller main body 1. At this time, the positioning seat 10 squeezes the outer ring housing 5 onto the inclined surface 4. At this time, the inclined surface 4 and the inclined surface 11 squeeze the outer ring housing 5 to the central position, and then turn the extrusion bolt 12 to pass through the positioning seat 10 and squeeze it onto the outer ring housing 5, thereby squeezing and fixing the outer ring housing 5 to achieve the fixed installation of the bearing. The above is the entire usage process of the positioning structure 2 of the treadmill roller bearing.

[0021] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0022] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

[0023] The above description of the present utility model and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the creation of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A positioning structure for a treadmill roller bearing, characterized in that: It includes a drum main body, a positioning structure and a fixing structure. The positioning structure is arranged on the drum main body, and the fixing structure is arranged on the positioning structure. The positioning structure includes a first inclined surface, an outer ring shell, a ball, a cage, an inner ring shell, a support shaft and a positioning seat. The first inclined surface is arranged inside the drum main body. The outer ring shell is inserted into the drum main body. The ball is fixedly arranged inside the outer ring shell. The cage is arranged to wrap the ball for rolling. The inner ring shell is fixedly arranged inside the ball. The support shaft penetrates through and wraps the inner ring shell. The positioning seat is arranged inside the drum main body by threading.

2. The positioning structure of a treadmill roller bearing according to claim 1, wherein: The fixing structure includes a second inclined surface and an extrusion bolt. The second inclined surface is arranged inside the positioning seat, and the extrusion bolt penetrates through the second inclined surface and is fixedly arranged by threading.

3. The positioning structure of a treadmill roller bearing according to claim 2, characterized in that: Threads are arranged at both ends inside the drum main body.

4. A positioning structure for a treadmill roller bearing according to claim 3, characterized in that: The inclination angle of the first inclined surface is the same as that of the second inclined surface but in the opposite direction.

5. A positioning structure for a treadmill roller bearing according to claim 4, characterized in that: The positioning seat is arranged in a cylindrical shape.

6. A positioning structure for a treadmill roller bearing according to claim 5, characterized in that: A number of groups of the extrusion bolts are arranged, and the extrusion bolts extrude the outer side of the outer ring shell.

Images