CN218000168U - Angular contact ball bearing - Google Patents

Abstract

The utility model provides an angular contact ball bearing, including outer lane, inner circle, holder and a plurality of roller, the holder be used for constituting interval and the guide to the roller, circle and be provided with the concave part, the outer lane is connected by main lasso and two vice lasso amalgamations and is constituted, main lasso is including two slot parts and the first butt face that are located its axial both sides department respectively, vice lasso is including connecting portion and second butt face, the cross-section of slot part and connecting portion all is the echelonment, and cup joint the cooperation between slot part and the connecting portion, two first butt face symmetries set up, set up relatively between adjacent first butt face and the second butt face, and first butt face and second butt face all are used for forming the point contact with the roller, the raceway constitutes with the inner circle concave part after relative first butt face and second butt face amalgamation. Not enough to prior art, the utility model provides an angular contact ball bearing, its installation is more convenient, is difficult for damaging in the installation.

Description

Angular contact ball bearings

technical field

The utility model relates to an angular contact ball bearing.

Background technique

Bearing is an important part used for the rotation support of the mechanical body. It can be seen everywhere in our life and work. In order to adapt to different working environments, there are many types of bearings. Common bearings usually include outer rings and inner rings. , several rollers and a cage, a raceway for accommodating several rollers is provided between the outer ring and the inner ring, and the cage is used to form intervals and guides for several rollers. Among them, the double-row angular contact ball bearings have raceways arranged in two rows in the axial direction, and the rollers in the raceways are spherical, and a four-point contact is formed between the rollers and the raceways. For the cooperation between the raceways, a recess is formed at the corresponding raceway of the outer ring and the inner ring, and the rollers protrude into it to form a point contact fit, which makes the distance between the outer ring and the inner ring outside the recess smaller than that of the rollers The outer diameter of the bearing is very inconvenient to install, and there is a risk of damage during the installation process.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides an angular contact ball bearing, which is more convenient to install and less likely to be damaged during the installation process.

In order to achieve the above purpose, the utility model provides an angular contact ball bearing, which includes an outer ring, an inner ring, a cage and several rollers, the cage is arranged between the outer ring and the inner ring, and the cage The frame is used to form the spacing and guidance of the rollers. The inner ring is provided with a concave part. The outer ring is composed of a main ring and two secondary rings. The main ring includes two a groove portion and a first abutment surface respectively located on both sides in the axial direction, the secondary ferrule includes a connection portion and a second abutment surface, and the sections of the groove portion and the connection portion are both stepped , and the socket fit between the groove part and the connecting part, the two first abutting surfaces are symmetrically arranged, the adjacent first abutting surfaces and the second abutting surfaces are oppositely arranged, and the first abutting surfaces Both the contact surface and the second contact surface are used to form point contact with the roller, and the raceway is formed by joining the opposite first contact surface and the second contact surface with the concave part of the inner ring.

The advantage of adopting the above technical solution is: by splitting the outer ring into a main ring and two auxiliary rings which can be spliced and connected, wherein the main ring and the auxiliary ring have a first abutting surface and a second contact surface respectively. Two abutting surfaces, and the raceway is composed of the opposite first abutting surface and the second abutting surface combined with the concave part of the inner ring. During the installation process, the two rows of rollers and the main ring can be used as a row of rollers , the main ring, and the other row of rollers for preliminary installation, and then connect the two secondary rings to the main ring to complete the assembly of the bearing. During the process, there is no need for the rollers to pass through the smaller of the outer ring and the inner ring. The interval is convenient for bearing installation, and it is not easy to be damaged during installation.

The utility model can be further configured as follows: the connecting part is set in the groove part, the outer diameter of the connecting part and the inner diameter of the groove part are provided with threaded surfaces capable of engaging with each other, and the main ferrule and the secondary ferrule Splines are provided at the outer diameter.

Through further setting, a threaded surface that can be engaged is provided on the socket fitting connection part and the groove part, so that during the installation process, after the secondary ferrule is inserted into the main ferrule, the radial limit of the two is formed, and then the Rotate to complete the axial connection of the main ring and the auxiliary ring, and finally form the anti-rotation fit between the main ring and the auxiliary ring through the splines at the outer diameters of the main ring and the auxiliary ring.

The utility model can be further set as: the groove portion of the main ferrule and the auxiliary ferrule are arranged at intervals in the axial direction, and an elastic gasket is arranged at the interval between the two.

By further setting, an elastic gasket is provided between the groove of the main ferrule and the secondary ferrule, so that the gap between the primary ferrule and the secondary ferrule can be sealed, and when the elastic gasket is deformed under pressure, it can provide a The elastic force in the direction, which can make the two thread faces close together and increase the friction between the two.

The utility model can be further configured as follows: the cage includes a first pocket and a second pocket respectively corresponding to the two rows of rollers.

Through further setting, the first pocket and the second pocket respectively corresponding to the two rows of rollers are set on the cage, so that one cage can guide and space the two rows of rollers at the same time, so that the two rows of rollers can be synchronized Circumferential movement along the raceway.

The utility model can be further set as: a number of connecting holes and connecting rods are arranged between the main ferrule and the two secondary ferrules, and the connecting holes extend from a secondary ferrule through the main ferrule to The other secondary ferrule, the connecting rod can be passed through the connecting hole and form a threaded fit with it.

Through further setting, thread fit is formed between the connecting hole and the connecting rod extending from one secondary ferrule to the other secondary ferrule through the main ferrule, thereby forming the positioning between the main ferrule and the two secondary ferrules connect.

The utility model can be further configured as follows: the connecting hole includes an opening, a first section and a second section, the opening is set at a secondary ferrule, and the first section is connected to the opening and Extending to the middle of the main ferrule and connecting with the second section, the outer diameter of the first section is larger than that of the second section.

By further setting, the connection hole is divided into a first section and a second section, and the outer diameter of the first section at the connection opening is larger than that of the second section. Such an arrangement can also set the connecting rod to a larger section and a smaller section. Small, in the process of installing the connecting rod, the smaller section of the connecting rod can pass through the first section directly, until the connecting rod goes through the larger section and the smaller section corresponds to the first section and the second section respectively, and then rotates connections for easy installation.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one;

Figure 2 is an enlarged view of part a in Embodiment 1 of the utility model;

Fig. 3 is the structural representation of the second embodiment of the utility model;

Among them: outer ring 1; main ring 11; groove portion 111; first abutment surface 112; secondary ring 12; connecting portion 121; second abutment surface 122; spline 13; elastic gasket 14; inner ring 2 Recess 21; Cage 3; First pocket 31; Second pocket 32; Roller 4; Thread surface 5; Connection hole 6; Opening 61; First section 62; Second section 63; ; The first connection section 71 ; the second connection section 72 .

detailed description

An embodiment of an angular contact ball bearing of the utility model is shown in Figure 1-2: it includes an outer ring 1, an inner ring 2, a cage 3 and a number of rollers 4, and the cage 3 is arranged on the outer ring 1 Between the inner ring 2 and the inner ring 2, the cage 3 is used for spacing and guiding the rollers 4, the inner ring 2 is provided with a recess 21, and the outer ring 1 is composed of the main ring 11 and two Two secondary ferrules 12 are spliced and connected. The main ferrule 11 includes two grooves 111 and a first abutting surface 112 respectively located on both axial sides thereof. The secondary ferrule 12 includes connecting part 121 and the second abutting surface 122, the cross sections of the groove part 111 and the connecting part 121 are both stepped, and the groove part 111 and the connecting part 121 are sleeved and fitted, and the two first abutting parts The surfaces 112 are arranged symmetrically, the adjacent first abutting surface 112 and the second abutting surface 122 are arranged opposite each other, and both the first abutting surface 112 and the second abutting surface 122 are used to form point contact with the roller 4 , the raceway is composed of the opposite first abutting surface 112 and second abutting surface 122 combined with the inner ring recess 21 .

The connecting part 121 is set in the groove part 111, the outer diameter of the connecting part 121 and the inner diameter of the groove part 111 are provided with a threaded surface 5 capable of engaging, the main ferrule 11 and the secondary ferrule 12 are Splines 13 are provided at the outer diameter. The groove portion 111 of the primary ferrule 11 and the secondary ferrule 12 are axially spaced apart, and an elastic washer 14 is disposed at the space between them. The cage 3 includes a first pocket 31 and a second pocket 32 respectively corresponding to the two rows of rollers 4 .

Embodiment 2 of an angular contact ball bearing of the present utility model is shown in Figure 3, and its difference from Embodiment 1 is as follows: between the main ring 11 and the two auxiliary rings 12, there is a Several connecting holes 6 and connecting rods 7, the connecting holes 6 extend from one secondary ferrule 12 to the other secondary ferrule 12 through the main ferrule 12, and the connecting rods 7 can pass through the connecting holes 6 and form a threaded fit with it.

The connecting hole 6 includes an opening 61, a first section 62 and a second section 63, the opening 61 is arranged at a secondary ferrule, and the first section 62 connects the opening and extends to The middle part of the main ferrule is connected with the second section 63, and the outer diameter of the first section 62 is larger than that of the second section. In this embodiment, the connecting rod 7 includes a first connecting section 71 and a second connecting section 72, the outer diameter of the first connecting section 71 is larger than that of the second connecting section 72, and during the installation of the connecting rod, the second The connecting section 72 can directly pass through the first section 62 until the connecting rod 6 travels to the first connecting section 71 and the second connecting section 72 corresponding to the first section 62 and the second section 63 respectively, and then rotates and connects, which is convenient for installation .

The above example is only one of the preferred specific examples of the utility model, and the usual changes and replacements performed by those skilled in the art within the scope of the technical solutions of the utility model are included in the protection scope of the utility model.

Claims (6)

1. An angular contact ball bearing, including outer lane, inner circle, holder and a plurality of roller, the holder set up between outer lane and inner circle, the holder be used for constituting the interval and the guide to the roller, the inner circle on be provided with the recess, its characterized in that: the outer ring is formed by splicing and connecting a main ferrule and two auxiliary ferrules, the main ferrule comprises two groove parts and two first abutting surfaces which are respectively positioned at two axial sides of the main ferrule, each auxiliary ferrule comprises a connecting part and a second abutting surface, the cross sections of the groove parts and the connecting parts are in a step shape, the groove parts and the connecting parts are in sleeve joint and match, the two first abutting surfaces are symmetrically arranged, the adjacent first abutting surfaces and the second abutting surfaces are oppositely arranged, the first abutting surfaces and the second abutting surfaces are used for forming point contact with rollers, and the roller path is formed by splicing the first abutting surfaces and the second abutting surfaces which are opposite to each other and an inner ring concave part.

2. The angular contact ball bearing according to claim 1, wherein: the connecting part is sleeved in the groove part, thread surfaces capable of being meshed are arranged at the outer diameter of the connecting part and the inner diameter of the groove part, and splines are arranged at the outer diameters of the main ferrule and the auxiliary ferrule.

3. The angular contact ball bearing according to claim 1 or 2, wherein: the groove part of the main ferrule and the auxiliary ferrule are arranged at intervals in the axial direction, and an elastic gasket is arranged at the interval between the groove part of the main ferrule and the auxiliary ferrule.

4. The angular contact ball bearing according to claim 1 or 2, wherein: the retainer comprises a first pocket and a second pocket which respectively correspond to two rows of rollers.

5. The angular contact ball bearing according to claim 1, wherein: a plurality of connecting holes and connecting rods are arranged between the main ferrule and the two auxiliary ferrules, the connecting holes extend from one auxiliary ferrule to the other auxiliary ferrule through the main ferrule, and the connecting rods can penetrate through the connecting holes and form threaded fit with the connecting holes.

6. The angular contact ball bearing according to claim 5, wherein: the connecting hole comprises an opening, a first section part and a second section part, the opening is arranged at one of the pair of ferrules, the first section part is connected with the opening and extends to the middle part of the main ferrule to be connected with the second section part, and the outer diameter of the first section part is larger than that of the second section part.

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