Rolling bearing convenient to install

Abstract

The utility model discloses a rolling bearing convenient to install, which comprises an inner ring, an outer ring and balls, the end part of the inner ring is connected with a limiting ring, the outer surface of the inner ring is connected with an elastic telescopic rod, the inner surface of the outer ring is provided with an annular groove, and after the elastic telescopic rod is bounced off, the end part of the elastic telescopic rod extends into the annular groove and is in sliding fit with the annular groove; a first limiting frame and a second limiting frame which are used for limiting the balls are arranged on the outer surface of the inner ring, the first limiting frame is fixedly connected to the outer surface of the inner ring, and the second limiting frame is fixedly connected to the inner side of the limiting ring. The circle center positions of the inner ring and the outer ring are relatively fixed, so that when the ball bearing is mounted, the inner ring and the outer ring cannot relatively slide due to the fact that the balls are placed, and mounting is facilitated; and the interference connection mode facilitates limiting of the balls, and the centering precision after installation is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling bearings, in particular to a rolling bearing which is easy to install. Background Art

[0002] Rolling bearings usually include an inner ring, an outer ring, and balls placed between the inner and outer rings. Rolling bearings reduce the friction coefficient during power transmission by rolling metal balls between the inner and outer rings, which not only reduces energy loss and makes the machine run more smoothly, but also prolongs the service life of the equipment. When installing a rolling bearing, usually one side of the inner ring is close to the outer ring, so that there will be enough space on the other side of the inner ring, and then the balls required for the rolling bearing are put in one by one. However, even if the gap is increased, it still takes a lot of pressure to press the last few balls in, which is very time-consuming and laborious. In addition, when putting in the balls, the inner and outer rings are easy to slide relative to each other, resulting in the need to fix the inner and outer rings during installation, which is very inconvenient to install. Therefore, it is necessary to design a rolling bearing that is easy to install. Utility Model Content

[0003] The utility model aims to provide a rolling bearing which is easy to install, thereby solving the problem that the existing rolling bearings are difficult to install.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A rolling bearing that is easy to install, comprises an inner ring, an outer ring and a ball placed between the inner ring and the outer ring, the end of the inner ring is connected to a limit ring, an elastic telescopic rod is connected to the outer surface of the inner ring, an annular groove is provided on the inner surface of the outer ring, after the elastic telescopic rod is ejected, the end of the elastic telescopic rod extends into the annular groove and slidably cooperates with the annular groove, a first limit frame and a second limit frame for limiting the ball are provided on the outer surface of the inner ring, the first limit frame is fixedly connected to the outer surface of the inner ring, and the second limit frame is fixedly connected to the inner side of the limit ring.

[0006] Furthermore, the elastic telescopic rods are evenly arranged in a plurality of groups along the outer surface of the inner ring.

[0007] Furthermore, the ball bearing is a double-ball rolling bearing, and the double balls are symmetrically arranged on both sides of the elastic telescopic rod.

[0008] Furthermore, the limit ring is interference connected with the inner ring.

[0009] The beneficial effects of the utility model are as follows: (1) The rolling bearing is provided with an elastic telescopic rod on the inner ring and an annular groove on the outer ring, and the two are slidably matched. The center positions of the inner ring and the outer ring are relatively fixed. When the ball bearing is installed, the inner and outer rings will not slide relative to each other due to the placement of the balls, which facilitates installation. (2) The installation method of placing the balls first and then installing the limit ring is adopted, which saves time and labor, and the interference connection method of the limit ring facilitates the limiting of the balls, and the centering accuracy after installation will also be higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the axial cross-sectional structure of the ball bearing of the utility model;

[0011] Figure 2 It is a schematic diagram of the radial structure of the ball bearing of the utility model.

[0012] In the figure: 1, inner ring; 2, outer ring; 3, ball; 4, elastic telescopic rod; 5, annular groove; 6, first limit frame; 7, limit ring; 8, second limit frame. DETAILED DESCRIPTION

[0013] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0014] like Figure 1-2 As shown, a rolling bearing that is easy to install includes an inner ring 1, an outer ring 2, and a ball 3 placed between the inner ring 1 and the outer ring 2. The end of the inner ring 1 is connected to a limit ring 7, and an elastic telescopic rod 4 is connected to the outer surface of the inner ring 1. An annular groove 5 is provided on the inner surface of the outer ring 2. After the elastic telescopic rod 4 is ejected, its end extends into the annular groove 5 and slidably cooperates with the annular groove 5. A first limit frame 6 and a second limit frame 8 for limiting the ball 3 are provided on the outer surface of the inner ring 1. The first limit frame 6 is fixedly connected to the outer surface of the inner ring 1, and the second limit frame 8 is fixedly connected to the inner side of the limit ring 7.

[0015] Working principle: the inner side of the limit ring 7 is close to the side of the rolling bearing, and the first limit frame 6 and the second limit frame 8 should be provided with several groups, and after the limit ring 7 is connected, several limit spaces for placing the balls 3 are formed in the outer ring 2. When installing the rolling bearing: first, the inner ring 1 with an elastic telescopic rod 4 connected to the outer surface is placed into the outer ring 2 with an annular groove 5 on the inner surface. After the elastic telescopic rod 4 is in place, its end automatically extends into the annular groove 5 and slides with the annular groove 5, so that the center positions of the inner ring 1 and the outer ring 2 are relatively fixed. When the ball bearing is installed, the inner and outer rings will not slide relative to each other due to the placement of the balls, which facilitates the installation; then, it is preferred to evenly place the balls 3 in a position close to the first limit frame 6, and finally connect the limit ring 7, and limit the balls 3 through the second limit frame 8 on the limit ring 7 and the first limit frame 6 to complete the installation.

[0016] Preferably, the elastic telescopic rods 4 are evenly arranged in a plurality of groups along the outer surface of the inner ring 1 . The number of the elastic telescopic rods 4 can be set according to the number of balls actually required, and preferably the two numbers are consistent.

[0017] Preferably, the ball bearing is a double-ball rolling bearing, and the double balls are symmetrically arranged on both sides of the elastic telescopic rod 4. The symmetrical arrangement enables the elastic telescopic rod 4 to be located inside the ball bearing after installation, which is beneficial to extending the service life of the equipment.

[0018] Preferably, the limit ring 7 is in interference connection with the inner ring 1. The interference connection between the limit ring 7 and the inner ring 1 usually needs to be achieved with the help of a pressure piece that can apply a large pressure. The interference connection method is convenient for limiting the ball 3, and the centering accuracy after installation will also be higher.

[0019] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A rolling bearing that is easy to install, comprising an inner ring (1), an outer ring (2), and balls (3) placed between the inner ring (1) and the outer ring (2), characterized in that: The end of the inner ring (1) is connected to a limit ring (7), the outer surface of the inner ring (1) is connected to an elastic telescopic rod (4), the inner surface of the outer ring (2) is provided with an annular groove (5), after the elastic telescopic rod (4) is opened, its end extends into the annular groove (5) and slides with the annular groove (5), and the outer surface of the inner ring (1) is provided with a first limit frame (6) and a second limit frame (8) for limiting the ball (3), the first limit frame (6) is fixedly connected to the outer surface of the inner ring (1), and the second limit frame (8) is fixedly connected to the inner side of the limit ring (7).

2. A rolling bearing that is easy to install according to claim 1, characterized in that: The elastic telescopic rods (4) are evenly arranged in a plurality of groups along the outer surface of the inner ring (1).

3. A rolling bearing that is easy to install according to claim 1, characterized in that: The rolling bearing is a double-ball rolling bearing, and the double balls are symmetrically arranged on both sides of the elastic telescopic rod (4).

4. A rolling bearing that is easy to install according to claim 1, characterized in that: The limiting ring (7) is interference-connected with the inner ring (1).

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