Light deep groove ball bearing

Abstract

The utility model discloses a light deep groove ball bearing, which relates to the technical field of bearings and is characterized in that a positioning groove is arranged at the open end of a movable gap, a step is arranged on the positioning groove, and a sealing ring is placed in the positioning groove and the step; the elastic pieces are respectively arranged on the sealing ring and are annularly arranged along the surface, in contact with the step, of the sealing ring, circular-ring-shaped movable grooves are formed in the positions, corresponding to the elastic pieces, of the step, and the elastic pieces extend into the movable grooves; the clamping bodies are arranged at the ends, away from the sealing ring, of the elastic pieces respectively, the positions, corresponding to the clamping bodies, of the movable groove are provided with annular clamping grooves, and the clamping bodies stretch into the clamping grooves. The device has the advantages of convenience in use, high stability and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of bearings, and in particular to a lightweight deep groove ball bearing. Background Technology

[0002] Deep groove ball bearings, formerly known as radial ball bearings, are one of the most widely used types of rolling bearings. They are characterized by low frictional resistance and high speed, and can be used in components that bear radial loads or combined radial and axial loads, as well as components that bear axial loads, such as small-power electric motors, automotive and tractor gearboxes, machine tool gearboxes, and general machinery and tools.

[0003] When deep groove ball bearings are used in dusty environments, sealing rings need to be installed on both sides of the bearing to prevent dust from entering between the inner and outer rings and the outer ring, thus avoiding the impact of dust on the lifespan of the deep groove ball bearing. For example, patent application number CN201720497149.4 discloses a lightweight deep groove ball bearing. In this patent, the outer walls of both axial ends of the inner ring 1 are provided with a first sealing groove 10, and the inner walls of both axial ends of the inner ring 21 are provided with a second sealing groove 11. The edge of the first sealing ring 9 is engaged within the first sealing groove 10 and the second sealing groove 11. The first sealing ring 9 can prevent dust, water, and other impurities from entering between the outer rings 2, thus preventing the steel balls 3 from being disturbed by impurities while sliding in the annular groove.

[0004] In the existing technology, the problem of preventing dust from entering is mainly solved by inserting the first sealing ring into the first sealing groove. However, the engagement method of the first sealing ring in the existing technology has poor stability. One side is engaged while the other side is not engaged. Since the inner and outer rings rotate relative to each other, the side of the first sealing ring that is not engaged is prone to deformation and gaps. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a lightweight deep groove ball bearing, so as to solve the problems of easy deformation and detachment of the seal ring and short service life of the prior art described in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lightweight deep groove ball bearing, comprising...

[0007] The inner ring is located inside the outer ring, and a gap is formed between the inner ring and the outer ring.

[0008] Several steel balls are held within the inner movable gap by a retainer;

[0009] Two sealing rings are respectively set at the two ends of the movable gap;

[0010] The opening end of the movable gap is provided with a positioning groove, and a step is provided on the positioning groove. The sealing ring is placed in the positioning groove and the step.

[0011] Several spring pieces are respectively set on the sealing ring and arranged in a ring along the side of the sealing ring that contacts the step. A circular movable groove is provided on the step corresponding to the position of the spring piece, and the spring piece extends into the movable groove.

[0012] Several locking bodies are respectively set on the end of the spring piece away from the sealing ring. The movable groove is provided with an annular locking groove corresponding to the position of the locking body, and the locking body extends into the locking groove.

[0013] Preferably, the opening end of the movable groove is provided with an annular ramp surface corresponding to the position of the card body.

[0014] Preferably, the lower end of the card body is positioned on a slope that is parallel to the slope.

[0015] Preferably, both the spring and the card body are arc-shaped.

[0016] The beneficial effects of adopting the above technical solutions are:

[0017] This application uses a spring clip that deforms when the locking body enters the movable groove, allowing the locking body to smoothly enter the movable groove. When the spring clip returns to its original position, it carries the locking body into the slot. Once the locking body is in the slot, the sealing ring is positioned. This connection method also enables the sealing ring to engage with both the inner and outer rings. Attached Figure Description

[0018] Figure 1 This is a top view of a lightweight deep groove ball bearing according to this utility model.

[0019] Figure 2 This is a top view of some components of this utility model.

[0020] Figure 3 This is a cross-sectional view of a lightweight deep groove ball bearing according to this utility model.

[0021] Figure 4 This is a utility model Figure 3 Enlarged view of point A in the image.

[0022] Among them: outer ring 10, inner ring 20, steel ball 30, sealing ring 40, positioning groove 41, step 42, spring piece 50, movable groove 51, locking body 60, locking groove 61, and inclined surface 62. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4 In this first embodiment, a lightweight deep groove ball bearing includes...

[0025] The inner ring 20 is located inside the outer ring 10, and a movable gap is formed between the inner ring 20 and the outer ring 10;

[0026] Several steel balls 30 are positioned within the movable gap by a retainer;

[0027] Two sealing rings 40 are respectively set at the two ends of the opening of the movable gap;

[0028] The opening end of the movable gap is provided with a positioning groove 41, and a step 42 is provided on the positioning groove 41. The sealing ring 40 is placed in the positioning groove 41 and the step 42.

[0029] Several spring pieces 50 are respectively disposed on the sealing ring 40 and arranged in a ring along the side of the sealing ring 40 that contacts the step 42. A circular movable groove 51 is provided on the step 42 corresponding to the position of the spring piece 50, and the spring piece 50 extends into the movable groove 51.

[0030] Several card bodies 60 are respectively disposed on the end of the spring piece 50 away from the sealing ring 40. The movable groove 51 is provided with an annular card groove 61 corresponding to the position of the card body 60, and the card body 60 extends into the card groove 61.

[0031] This embodiment is implemented as follows:

[0032] In use, the sealing ring 40 is placed into the positioning groove 41 and step 42 of the movable gap, so that the spring piece 50 can bring the locking body 60 into the movable groove 51. Since the locking body 60 protrudes from the spring piece 50, after the locking body 60 is squeezed into the movable groove 51, it will cause the spring piece 50 to deform, so that the spring piece 50 deforms in the movable groove 51 to give the locking body 60 enough space to enter the movable groove 51. When the spring piece 50 enters the movable groove 51, the locking body 60 is facing the locking groove 61. Under the reset force of the spring piece 50, the locking body 60 will enter the locking groove 61, thereby achieving the positioning of the sealing ring 40.

[0033] Please see Figure 2 , 3 4. The opening end of the movable groove 51 is provided with an annular ramp surface 62 corresponding to the position of the card body 60.

[0034] The ramp 62 allows the card body 60 to slide on the ramp 62 toward the movable groove 51, facilitating the entry of the card body 60 into the movable groove 51.

[0035] Please see Figure 3 , 4 The lower end of the card body 60 corresponds to the position of the slope surface 62, which is a slope parallel to the slope surface 62.

[0036] Setting one side of the card body 60 corresponding to the ramp surface 62 as a ramp can further improve the smoothness of the card body 60 entering the active groove 51.

[0037] Both the shrapnel 50 and the clip body 60 are arc-shaped.

[0038] Setting the spring 50 and the card body 60 into an arc shape can increase the stability of the card body 60 in the card slot 61, thereby improving the stability of the sealing ring 40.

[0039] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A light deep groove ball bearing, comprising an inner ring located at the inner side of the outer ring, and forming a movable gap with the outer ring; a plurality of steel balls arranged in the inner movable gap by a retainer; two sealing rings arranged at the opening of the movable gap respectively; characterized in that wherein the opening end of the movable gap is provided with a positioning groove, and a step is arranged on the positioning groove, and the sealing ring is arranged in the positioning groove and the step; a plurality of elastic sheets are arranged on the sealing ring respectively, and are arranged in a ring shape along the side of the sealing ring in contact with the step, and a circular ring-shaped movable groove is arranged on the step corresponding to the position of the elastic sheet, and the elastic sheet extends into the movable groove; a plurality of clamping bodies are arranged on the end of the elastic sheet away from the sealing ring respectively, and a circular ring-shaped clamping groove is arranged on the movable groove corresponding to the position of the clamping body, and the clamping body extends into the clamping groove.

2. A light duty deep groove ball bearing according to claim 1, wherein The opening end of the movable groove is provided with a circular ring-shaped inclined surface corresponding to the position of the clamping body.

3. A light duty deep groove ball bearing according to claim 2, wherein The lower end of the clamping body corresponding to the position of the inclined surface is a inclined surface parallel to the inclined surface.

4. A light duty deep groove ball bearing according to claim 1, wherein The elastic sheet and the clamping body are both circular arc shapes.

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